Accessory DC Power Control Module Scan Tool Information
The Accessory DC Power Control Module Scan Tool Data Parameters list contains hybrid controls-related parameters. The list is arranged in alphabetical order.
Use the Accessory DC Power Control Module Scan Tool Data Parameters list only after the following is determined
- The «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-trouble-code-dtc-list) is completed.
- No diagnostic trouble codes (DTCs)
- On-board diagnostics are functioning properly
The scan tool values from a properly running vehicle may be used for comparison with the vehicle you are diagnosing. The Accessory DC Power Control Module Scan Tool Data Parameters list represents values that would be seen on a normally running vehicle.
| IMPORTANT | A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement. |
Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Hybrid Controls for diagnosis.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories OFF, unless otherwise noted | |||
| 12V Circuit Current | Maximum Accessory Load | Near 150 A | This parameter displays the actual current flow of the low voltage (12V) conversion circuit. The Accessory DC Power Control Module (APM) will stop conversion at current greater than 175A. The parameter display range is 0-255 Amps. |
| 12V Circuit Voltage | Maximum Accessory Load | 15.5V | This parameter displays the actual voltage of the low voltage (12V) conversion circuit. The parameter display range is 0-25.5V. |
| 12V Conditions Met | Yes | This parameter displays if sufficient battery voltage is available at the accessory DC power control module (APM) 12V conversion circuit to begin high voltage to low voltage power conversion. Yes is displayed when the APM detects the minimum amount of voltage at the 12V conversion circuit necessary to enable low voltage power conversion. The parameter display range is Yes, No. | |
| 12V Enable Command | On | This parameter displays the commanded state of the low voltage (12V) conversion circuit of the accessory dc power control module (APM). The hybrid powertrain control module (HPCM) commands the APM to perform voltage conversion when conditions are acceptable. On is displayed when the APM has received the low voltage circuit (12V) conversion enable command from the HPCM. The APM converts high voltage (300V) to low voltage (12V) and supplies current on the low voltage (12V) circuit in order to support the 12V electrical system loads and also to charge the accessory battery. The parameter display range is On, Off. | |
| 300V Charge Command | Off | This parameter displays the commanded state of the high voltage (300V) conversion circuit of the accessory DC power control module (APM). The APM is capable of converting high current, low voltage on the 12V electrical system into high voltage, low current on the 300V electrical system. This process occurs only during the Jump Assist service operation and requires the assistance of an off-vehicle 12V source such as a battery charger. On is displayed when the APM has received the Jump Assist enable command from the hybrid powertrain control module (HPCM) via the scan tool. The parameter display range is On, Off. | |
| 42V Circuit Current | Maximum Steering Load | 30A | This parameter displays the actual current flow of the intermediate voltage (42V) conversion circuit. The Accessory DC Power Control Module (APM) will stop conversion at current greater than 50A. The parameter display range is 0-255 Amps. |
| 42V Circuit Maximum | Varies | This parameter displays the maximum voltage of the intermediate voltage (42V) conversion circuit observed during the current ignition cycle. The parameter display range is 0-255V. | |
| 42V Circuit Temperature | Near DMCM Coolant Temperature | This parameter displays the temperature of the intermediate voltage (42V) conversion circuit terminal. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| 42V Circuit Voltage | Maximum Steering Load | 42V | This parameter displays the actual voltage of the intermediate voltage (42V) conversion circuit. The parameter display range is 0-255V. |
| 42V Enable Command | On | This parameter displays the commanded state of the intermediate voltage (42V) conversion circuit. The hybrid powertrain control module (HPCM) commands the APM to perform voltage conversion when conditions are acceptable. On is displayed when the APM has received the intermediate voltage circuit (42V) conversion enable command from the HPCM. The APM converts high voltage (300V) to intermediate voltage (42V) and supplies current on the intermediate voltage (42V) circuit in order to support the power steering system. The parameter display range is On, Off. | |
| 42V Temperature Status | Normal | This parameter displays the temperature status of the intermediate voltage (42V) conversion circuit. The parameter display range is Normal, Power Limit, Reduced Perf., Shutdown. | |
| APM 300V Circuit Current | Varies | This parameter displays the high voltage circuit current. This parameter is in-active during Jump Assist. The parameter display range is 0 to 1638.35 Amps. | |
| APM Heat Plate Temperature | Near DMCM Coolant Temperature | This parameter displays the temperature of the electronics cooling surface that is shared by the accessory dc power control module (APM) and the drive motor generator power inverter module assembly (PIM). The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| APM Set Point | Maximum Accessory Load | Near 100% | This parameter displays the low voltage (12V) conversion circuit output as a duty cycle percentage. The APM receives the Low Voltage (12V) output request from the hybrid powertrain control module (HPCM). The HPCM receives a low voltage (12V) voltage output request from the body control module (BCM). The BCM monitors conditions such as 12 volt battery temperature and current flow and requests a specific voltage be maintained. 100% is displayed when the APM is requested to deliver the maximum possible voltage to the low voltage (12V) circuit. The parameter display range is 0 to 100%. |
| HPCM 300V Circuit | Varies | This parameter displays the high voltage circuit voltage as determined by the hybrid powertrain control module (HPCM). The parameter display range is 0-655.35V. | |
Accessory DC Power Control Module Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| APM Set Point | The hybrid powertrain control module (HPCM) commands the accessory DC power control module (APM) to convert high voltage (300V) to low voltage (12V). The HPCM commands the APM to maintain between 12.5-15.5V on the 12V circuit. When the ignition is ON and high voltage is enabled, this control has a 10 minute elapsed time limit for the current ignition cycle. |
| Intermediate Voltage | The hybrid powertrain control module (HPCM) commands the accessory DC power control module (APM) to convert high voltage (300V) to intermediate voltage (42V). The following control limits apply: The ignition has been turned only to Run and not to Crank this ignition cycle. The vehicle must be in Park/Neutral. PRNDL DTCs must not be present. Vehicle speed must be zero. The 42V is the supply to the power steering control module. |
| Jump Assist | The hybrid powertrain control module (HPCM) commands the accessory DC power control module (APM) to convert low voltage (12V) to high voltage (300V). The APM will draw as much as 80A on the 12V circuit during Jump Assist. An external voltage source (charger) is required. When Jump Assist is enabled and the ignition is turned OFF, this control will continue the conversion operation until one of the following conditions is observed: Jump Assist is complete The ignition is turned to the Run or Crank Position The APM 12V circuit voltage is less than an acceptable amount Follow the Jump Assist service information. |
Accessory DC Power Control Module Scan Tool Output Controls
Assist Step Control Module Scan Tool Information
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Vehicle Running, All Doors Closed | |||
| ASC Disable Switch | Inactive | The scan tool displays Active or Inactive.This displays the state of the ASC switch. | |
| ASC Learn Status | Passed | The scan tool displays Running,Passed, and Canceled. This parameter displays the learned status of the ASC module. | |
| ASC System Status | Passed | The scan tool displays Unknown, Normal, Disabled, or Locked. This parameter displays the status of the ASC system. | |
| Battery Voltage | Varies | The scan tool displays Volts. This is the current battery voltage. | |
| Driver Door Ajar Sw. | Stop | The scan tool displays Door Closed, and Door Ajar. This is the status of the driver door ajar switch. | |
| Left ASC Board Commanded | Varies | The scan tool displays Off, Unknown, Retract, Extend. This displays the commanded position of the left running board. | |
| Left ASC Board Position | Varies | This diplays counts. The parameter displays the running boards position in counts 0-255 | |
| Left ASC Board Learned | Yes | The scan tool displays Yes or No. This lets you know if the ASC board has learned it's fully extended and fully retracted limits. | |
| Left Rear Door Ajar Sw | Varies | The scan tool displays Door Closed, and Door Ajar. This is the status of the left rear door ajar switch. | |
| Manufacturers Enable Counter | Varies | This displays counts. Counts from 256-0. | |
| Passenger Door Ajar Sw | Varies | The scan tool displays Door Closed, and Door Ajar. This is the status of the passenger door ajar switch. | |
| Right Rear Door Ajar Sw | Varies | The scan tool displays Door Closed, and Door Ajar. This is the status of the right rear door ajar switch. | |
| Right ASC Board Commanded | Varies | The scan tool displays Off, Unknown, Retract, Extend. This displays the commanded position of the right running board. | |
| Right ASC Board Learned | Yes | The scan tool displays Yes or No. This lets you know if the ASC board has learned it's fully extended and fully retracted limits. | |
| Right ASC Board Position | Varies | This displays counts. The parameter displays the running boards position in counts 0-255 | |
Assist Step Control Module Scan Tool Data List
| Scan Tool Output Control | Additional Menu Selections | Description |
|---|---|---|
| Left ASC Motor Test | Special Functions | This test fully deploys the assist step and then retract the assist step. |
| Right ASC Motor Test | Special Functions | This test fully deploys the assist step and then retract the assist step. |
Assist Step Control Module Scan Tool Output Controls
Auxiliary Body Control Module Scan Tool Information
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Ignition in the ON position, bright light applied to the ambient light sensor, park brake not set, headlamp switch in the OFF position, dome lamp switch in the OFF position, fog lamp switch in the OFF position, all doors closed, and trailer harness disconnected. | |||
| Battery Voltage | Varies | The scan tool displays Volts. This is the battery voltage input to the auxiliary BCM. | |
| Inclination Sensor Status | Off | The scan tool displays Off, Awake, Valid, Active, Invalid. This is the state of the inclination sensor. | |
| Rear Fog Lamp Relay Cmd. | Off | The scan tool displays ON/OFF. When the rear fog lamp switch is placed in the ON position and rear fog lamp relay activation is requested, the scan tool will display ON. | |
| Rear Fog Lamp Switch | Inactive | The scan tool displays Inactive/Active. When the rear fog lamp switch is placed in the ON position, the scan tool will display Active. | |
| Trailer Left Bulb Out Signal | 0 Counts | The scan tool displays counts. When the XBCM detects that a trailer is connected and that a left trailer bulb is inoperative, the scan tool will display 0 counts. When the XBCM detects that a trailer is connected and that a left trailer bulb is operative, the scan tool will display 255 counts. | |
| Trailer Right Bulb Out Signal | 0 Counts | The scan tool displays counts. When the XBCM detects that a trailer is connected and that a right trailer bulb is inoperative, the scan tool will display 0 counts. When the XBCM detects that a trailer is connected and that a right trailer bulb is operative, the scan tool will display 255 counts. | |
| Trailer Detection Input | Off | The scan tool displays ON/OFF. When a trailer is connected to the vehicle and a voltage signal is received through the trailer harness to the XBCM, the scan tool will display ON. | |
| Trailer Fog Lamp Relay Cmd. | Off | The scan tool displays ON/OFF. When the rear fog lamp switch is placed in the ON position and trailer rear fog lamp relay activation is requested, the scan tool will display ON. | |
Auxiliary Body Control Module
| Output Control | Additional Menu Selections | Description |
|---|---|---|
| Rear Fog Lamps | Output Controls | The auxiliary body control module activates the rear fog lamps when you select ON. The rear fog lamps illuminate until commanded OFF. |
| Trailer Fog Lamps | Output Controls | The auxiliary body control module activates the trailer fog lamps circuit when you select ON. The trailer fog lamps circuit remains energized until commanded OFF. |
Auxiliary Body Control Module Scan Tool Output Controls
Auxiliary Heater and Air Conditioning Control Module Scan Tool Information
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Battery Voltage Signal | Varies | This displays volts. This is the voltage input supplied to the rear HVAC. | |
| Display Dimming Signal | Varies | This displays volts. This is the current voltage supplied to the rear HVAC display dimming. | |
| Left Rear Heated Seat Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the left rear heated seat switch. | |
| Power Button | Inactive | The scan tool displays Active or Inactive. This is the state of the rear seat audio system. | |
| Program Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the rear seat audio program switch. | |
| Rear Audio Seek Down Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the rear audio seek down switch. | |
| Rear Audio Seek Up Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the rear audio seek up switch. | |
| Rear HVAC Fan Down Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the rear HVAC fan down switch. | |
| Rear HVAC Fan Up Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the rear HVAC fan up switch. | |
| Rear HVAC Mode Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the rear HVAC mode switch. | |
| Rear Temperature Down Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the rear temperature down switch. | |
| Rear Temperature Up Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the rear temperature up switch. | |
| Right Rear Heated Seat Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the right rear heated seat switch. | |
| Source Button | Inactive | The scan tool displays Active or Inactive. This is the state of the rear audio source switch. | |
Rear HVAC/RSA Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| Display(s) Test | The rear HVAC/RSA module will illuminate all indicators and display segments on the module display. |
| Infrared Transmitter Power Control | The rear HVAC/RSA module will activate the infrared transmitter, which sends wireless signals to the RSA headphones. |
Rear HVAC/RSA Scan Tool Output Controls
Body Control Module Scan Tool Information
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Engine ON | |||
| Accy/RAP Relay Command | On | The scan tool displays On or Off. This is the state of the Accy/RAP relay. | |
| Accessory Relay Command | On | The scan tool displays On or Off. This is the state of the accessory relay. | |
| All Door Lock Cmd. | Off | The scan tool displays On or Off. This is the state of the all door lock switch. | |
| Ambient Light Sensor | Varies | This displays Volts. This is the current voltage at the ambient light sensor. | |
| Ambient Light Status | Varies | The scan tool displays Night, Day, Unknown or Invalid. This is the state of the ambient light sensor. | |
| Auto Hdlp. Disable Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the auto headlamp disable switch. | |
| Backup Lamps | Off | The scan tool displays On or Off. This is the state of the backup lamps. | |
| Batt. Low at Start | No | The scan tool displays Yes or No. Yes is displayed if the state of the battery charge is low during cranking. | |
| Batt. Open Ckt. Tested | No | The scan tool displays Yes or No. Yes is displayed if the BCM senses an open battery circuit. | |
| Batt. Open Ckt. Voltage | Varies | This displays Volts. | |
| Batt. Voltage High Res. | Varies | This displays Volts. | |
| Battery Current | Varies | This displays amps. This numeric value is the battery amperage. | |
| Battery Sulfation Mode | Inactive | The scan tool displays Active or Inactive. This is the state of the battery sulfation mode. | |
| Battery Voltage | Varies | This displays Volts. This is the current battery voltage. | |
| Battery Voltage | Normal | This displays Normal or Out of Range. This is the current state of the system voltage. | |
| BTSI Fault | Not Present | The scan tool displays Present or Not Present. Present is displayed if the BCM senses a brake transmission shift interlock (BTSI) fault. | |
| Content Theft Mode | Varies | The scan tool displays True or False. This is the mode of the content theft system. | |
| Courtesy Lamp PWM Cmd. | Varies | This displays percent. This is the current dimming percentage of the courtesy lamps. | |
| Crank Abort | False | The scan tool displays True or False. This is the state of the crank abort. | |
| Cruise Control Switch | Off | The scan tool displays Off, On, Resume, Set, Error or Cancel. This is the current state of the cruise control switch. | |
| Cruise Ctrl. LED Dimming Cmd. | Varies | This displays percent. This is the current dimming percentage of the cruise control indicator of the cruise switch. | |
| CTD Status | Disarmed | The scan tool displays Disarmed, Armed, Arm Delay or Alarm Active. This is the state of the content theft deterrent (CTD) system. | |
| CTD Trigger History 1 | None | The scan tool displays None, Drvr. Door, Psgr. Door, LR Door, RR Door, Rear Closure, Mid Closure, Tonneau, Hood, Ignition, Intrusion, Remote, Batt. Reconnect, Power Mode, Tamper, Glass Break. This is the state of the content theft deterrent (CTD) system. | |
| CTD Trigger History 2 | None | The scan tool displays None, Drvr. Door, Psgr. Door, LR Door, RR Door, Rear Closure, Mid Closure, Tonneau, Hood, Ignition, Intrusion, Remote, Batt. Reconnect, Power Mode, Tamper, Glass Break. This is the state of the content theft deterrent (CTD) system. | |
| CTD Trigger History 3 | None | The scan tool displays None, Drvr. Door, Psgr. Door, LR Door, RR Door, Rear Closure, Mid Closure, Tonneau, Hood, Ignition, Intrusion, Remote, Batt. Reconnect, Power Mode, Tamper, Glass Break. This is the state of the content theft deterrent (CTD) system. | |
| Ctsy. Lamp Actv. Reason | Varies | The scan tool displays Off, Panic, Manual, Air Bag, Door Open, RFA, RFA Theft, Door Closed, Exit or Manual Defeat. This is the reason for courtesy lamp activation. | |
| Current CTD Trigger | None | The scan tool displays None, Drvr. Door, Psgr. Door, LR Door, RR Door, Rear Closure, Mid Closure, Tonneau, Hood, Ignition, Intrusion, Inclination, Remote, Batt. Reconnect, Power Mode or Tamper. | |
| Current Power Mode | Run | The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch. | |
| Desired Battery Voltage | Varies | This displays Volts. This is the desired battery voltage. | |
| Dimming Control Reference | Varies | This displays Volts. This is the dimming control reference voltage. | |
| Dimming Control Signal | Varies | This displays percent. This is the dimming control percentage. | |
| Dimming Control Signal | Varies | This displays Volts. This is the dimming control signal voltage. | |
| Door Key Cyl. Unlock Switch | Inactive | This displays Active or Inactive. This is the state of the door key cylinder unlock switch. | |
| Door Lock Requestor | Varies | The scan tool displays Power Lock, Door Key Cyl., Rear Closure, Emergency, Keyless Entry, Passive Keyless, Remote, Delayed Lock, Relocking, Anti-Lockout, Exterior Sw. or Auto Locks. This is the current state of the door lock request as monitored by the BCM. | |
| Driver Door Ajar Sw. | Door Closed | The scan tool displays Door Ajar or Door Closed. This is the state of the driver door ajar switch. | |
| Driver Door Lock Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the driver door lock switch. | |
| Driver Door Open Sw. | Closed | The scan tool displays Open or Closed. This is the state of the driver door open switch. | |
| Driver Door Unlock Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the driver door unlock switch. | |
| Driver Identification | Varies | The scan tool displays Unknown or Driver 1-7. This is the current driver identification as monitored by the BCM. | |
| DRL Relay Command | Off | The scan tool displays On or Off. This is the state of the daytime running lamps. | |
| Drvr. Door Unlock Cmd. | Off | The scan tool displays On or Off. This is the state of the driver door unlock system. | |
| Drvr. 1 RVS Status | Varies | The scan tool displays On or Off. This is the state of the driver 1 RVS. | |
| Drvr. 2 RVS Status | Varies | The scan tool displays On or Off. This is the state of the driver 2 RVS. | |
| Estimated Battery Temp. | Varies | This displays °C (°F). This is the current estimated battery temperature. | |
| Endgate Handle Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the endgate handle switch. | |
| Endgate Lock Status | Unlocked | The scan tool displays Unlocked or Locked. This is the current state of the endgate lock. | |
| Endgate Release Cmd. | Off | The scan tool displays On or Off. This is the current state of the endgate release. | |
| Flash to Pass Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the flash to pass switch. | |
| Front Fog Lamp Relay Command | Off | The scan tool displays On or Off. This is the state of the front fog lamp relay system. | |
| Front Fog Lamp Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the front fog lamp switch. | |
| Fuel Economy Mode | Active | The scan tool displays Active or Inactive. This is the state of the fuel economy mode. | |
| Hazard Lamp Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the hazard lamp switch. | |
| Headlamp Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the headlamp switch. | |
| High Beam Relay Command | Off | The scan tool displays On or Off. This is the state of the high beam relay. | |
| High Beam Select Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the high beam select switch. | |
| Hood Ajar Switch | Closed | The scan tool displays Ajar or Closed. This is the state of the hood ajar switch. | |
| Hood Closed Switch | Active | The scan tool displays Active or Inactive. This is the state of the hood closed switch. | |
| Hood Open Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the hood open switch. | |
| Hood Switch Fault | Not Present | The scan tool displays Present or Not Present. Present is displayed if the BCM senses a hood switch fault. | |
| Horn Relay Command | Off | The scan tool displays On or Off. This is the state of the horn relay. | |
| HS Comm. Cmd. | Off | The scan tool displays On or Off. This is the state of the high speed communications command of the BCM. | |
| Idle Boost Level 2 Counter | Varies | This displays a numeric value. This is the number of level 2 idle boosts. | |
| Idle Boost Level 3 Counter | Varies | This displays a numeric value. This is the number of level 3 idle boosts. | |
| Ign. Off/Run/Crank | Run | The scan tool displays Key In/Off, Key Out/ACC, Crank or Run. This is the state of the ignition switch. | |
| Ignition Accessory/Run | Active | The scan tool displays Active or Inactive. This is the state of the ignition accessory/run. | |
| Ignition Run/Crank | Active | The scan tool displays Active or Inactive. This is the state of the ignition run/crank. | |
| Ignition Switch Fault | No | The scan tool displays Yes or No. Yes is displayed if the BCM senses an ignition switch fault. | |
| Incandescent Dimming PWM Cmd. | Varies | This displays percent. This is the current incandescent dimming percentage. | |
| Key Capture Solenoid Cmd. | Off | The scan tool displays On or Off. This is the state of the key capture solenoid. | |
| Key in Ignition | Yes | The scan tool displays Yes or No. This is the state of the key in ignition. | |
| Key in Ignition Status | Key In | The scan tool displays Key In or Key Out. This is the state of the key in ignition. | |
| LED Dimming PWM Cmd. | Varies | This displays percent. This is the current LED dimming percentage. | |
| Left Rear Door Ajar Sw. | Door Closed | The scan tool displays Door Closed or Door Ajar. This is the state of the driver rear door ajar switch. | |
| Left Turn Signal Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the left turn signal switch. | |
| LF Turn Signal | Off | The scan tool displays On or Off. This is the state of the left front turn signal. | |
| LF Turn Signal Bulb Out Feedback | Inactive | The scan tool displays Active or Inactive. This is the state of the left front turn signal bulb. | |
| LR Turn Signal | Off | The scan tool displays On or Off. This is the state of the left rear turn signal. | |
| LR Turn Signal Bulb Feedback | Inactive | The scan tool displays Active or Inactive. This is the state of the left rear turn signal bulb. | |
| Liftgate Handle Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the liftgate handle switch. | |
| Liftgate Lock Status | Unlocked | The scan tool displays Locked or Unlocked. This is the current state of the liftgate lock. | |
| Low Beam Relay Command | Off | The scan tool displays On or Off. This is the state of the low beam relay. | |
| LR Window Enable Cmd. | Off | The scan tool displays On or Off. This is the state of the driver rear window enable system. | |
| LR Window Up Cmd. | Off | The scan tool displays On or Off. This is the state of the driver rear window up request. | |
| LR Window Down Cmd. | Off | The scan tool displays On or Off. This is the state of the driver rear window down request. | |
| Off/Run/Crank Reference | Varies | This displays volts. This is the current off/run/crank reference voltage. | |
| Off/Run/Crank Signal | Varies | This displays volts. This is the current off/run/crank signal voltage. | |
| Parasitic Current | Varies | This displays amps. This is the state of the parasitic draw on the battery. | |
| Park Brake Switch | Released | The scan tool displays Applied or Released. This is the state of the park brake switch. | |
| Park Lamp Relay Cmd. | Off | The scan tool displays On or Off. This is the state of the park lamp relay. | |
| Parklamp Switch | Off | The scan tool displays On or Off. This is the state of the park lamp switch. | |
| Passenger Door Ajar Sw. | Door Closed | The scan tool displays Door Closed or Door Ajar. This is the state of the passenger door ajar switch. | |
| Passenger Door Open Sw. | Closed | The scan tool displays Open or Closed. This is the state of the passenger door open switch. | |
| Powertrain HS Comm. Cmd. | Off | The scan tool displays On or Off. This is the state of the powertrain high speed communications command. | |
| Prev. State of Charge | Varies | This displays percent. This was the previous state of charge of the battery. | |
| Psgr. Door Lock Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the passenger door lock switch. | |
| Psgr. Door Unlock Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the passenger door unlock switch. | |
| Psgr. Door(s) Unlock Cmd. | Off | The scan tool displays On or Off. This is the state of the passenger doors unlock system. | |
| Rain Sensor Signal | Off | The scan tool displays Off, Low Speed, High Speed, Sensor Failed, Ckt. Fault Low, Ckt. Fault High, No Glass or No BCM Data. This is the state of the rain sensor signal. | |
| Rear Cargo Lock Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the rear cargo lock switch. | |
| Rear Cargo Unlock Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the rear cargo unlock switch. | |
| Rear Closure Cyl. Unlock Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the rear closure cylinder unlock switch. | |
| Rear Closure Open Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the rear closure open switch. | |
| Rear Closure Ajar Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the rear closure ajar switch. | |
| Rear Doors Lock Cmd. | Off | The scan tool displays On or Off. This is the state of the rear doors lock system. | |
| Rear Doors Unlock Cmd. | Off | The scan tool displays On or Off. This is the state of the rear doors unlock system. | |
| Regulator Setpoint | Varies | This displays percent. This is the set point of the voltage regulator. | |
| Remaining Starts 0 | Varies | The scan tool displays True or False. True is displayed if there are no remaining starts. | |
| Remote Start Attempts 0 | Varies | The scan tool displays True or False. True is displayed if there are no remote start attempts. | |
| RF Turn Signal | Off | The scan tool displays On or Off. This is the state of the right front turn signal. | |
| RF Turn Signal Bulb Out Feedback | Inactive | The scan tool displays Active or Inactive. This is the state of the right front turn signal bulb. | |
| Right Rear Door Ajar Sw. | Door Closed | The scan tool displays Door Closed or Door Ajar. This is the state of the passenger rear door ajar switch. | |
| Right Turn Signal Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the right turn signal switch. | |
| RR Turn Signal | Off | The scan tool displays On or Off. This is the state of the right rear turn signal. | |
| RR Turn Signal Bulb Out Feedback | Inactive | The scan tool displays Active or Inactive. This is the state of the right rear turn signal bulb. | |
| RR Window Down Cmd. | Off | The scan tool displays On or Off. This is the state of the passenger rear window down system. | |
| RR Window Enable Cmd. | Off | The scan tool displays On or Off. This is the state of the passenger rear window enable system. | |
| RR Window Up Cmd. | Off | The scan tool displays On or Off. This is the state of the passenger rear window up system. | |
| Run/Crank Relay Command | Off | The scan tool displays On or Off. This is the state of the run/crank relay. | |
| Run Abort | False | The scan tool displays True or False. True is displayed if a run abort was executed. | |
| Run Relay Command | Off | The scan tool displays On or Off. This is the state of the run relay. | |
| Shift Lock Solenoid Command | Off | The scan tool displays On or Off. This is the state of the shift lock solenoid. | |
| Start Up State of Charge | Varies | This displays percent. This was the last state of charge of the battery at start up. | |
| State of Charge | Varies | This displays percent. This is the current state of charge of the battery. | |
| State of Charge Low | No | The scan tool displays Yes or No. Yes is displayed if the state of charge of the battery is low. | |
| Stop Lamp Relay Command | Off | The scan tool displays On or Off. This is the state of the stop lamp relay. | |
| Stop Lamp Switch Status | Varies | This displays a numeric value. This is the state of the stop lamp. | |
| SWC Bank 1 Status | Idle | The scan tool displays Idle or Switch 1-10. This is the state of the steering wheel controls (SWC) bank 1. | |
| SWC Bank 2 Status | Idle | The scan tool displays Idle or Switch 1-10. This is the state of the steering wheel controls (SWC) bank 2. | |
| Tap Up/Down Switch | Off | The scan tool displays On, Off, Up or Down. This is the state of the tap up/down switch. | |
| Theft LED | Off | The scan tool displays On, Off, Flash Slow or Flash Fast. This is the current state of the theft indicator. | |
| Tonneau Release Cmd. | Off | The scan tool displays On or Off. This is the current state of the tonneau release. | |
| Traction Control Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the traction control switch. | |
| Trailer Left Bulb Out Signal | Inactive | The scan tool displays Active or Inactive. This is the state of the left trailer bulb. | |
| Trailer Right Bulb Out Signal | Inactive | The scan tool displays Active or Inactive. This is the state of the right trailer bulb. | |
| Valet Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the valet switch. | |
| Washer Relay Cmd. | Off | The scan tool displays On or Off. This is the state of the washer relay. | |
| Windshield Washer Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the windshield washer switch. | |
| Windshield Wiper Switch | Off | The scan tool displays Off, Intermittent, Low, High or Switch Fault. This is the state of the windshield wiper switch. | |
| Wiper Delay Setting | Varies | This displays a numeric value. This is the wiper delay setting. | |
| Wiper High Speed Relay Cmd. | Off | The scan tool displays On or Off. This is the state of the wiper high speed relay. | |
| Wiper High Speed Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the wiper high speed switch. | |
| Wiper Park Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the wiper park switch. | |
| Wiper Relay Cmd. | Off | The scan tool displays On or Off. This is the state of the wiper relay. | |
Body Control Module Scan Tool Data Parameters
| Scan Tool Output Control | Additional Menu Selections | Description |
|---|---|---|
| Accy/RAP Relay | This output control is used to command the Accy/RAP relay On and Off. | |
| Backup Lamps | This output control is used to command the backup lamps On and Off. | |
| Courtesy Lamp | This output control is used to command the foot wells and courtesy lamps On and Off. | |
| DRL | This output control is used to command the daytime running lamps On and Off. | |
| Fog Lamps | This output control is used to command the fog lamps On and Off. | |
| High Beams | This output control is used to command the high beam headlights On and Off. | |
| Horn | This output control is used to command the horn On and Off. | |
| Incandescent Dimming | The BCM dims the incandescent dimming from 0-100 percent when you select INCREASE or DECREASE by 20 percent increments. | |
| LED Dimming | The BCM dims the LED dimming from 0-100 percent when you select INCREASE or DECREASE by 20 percent increments. | |
| Left Rear Window | This output control is used to command the left rear window Up and Down. | |
| LF Turn Signal | This output control is used to command the left front turn signal On and Off. | |
| Lock Rear Doors | This output control is used to command the rear doors to lock. | |
| Low Beams | This output control is used to command the low beam headlights On and Off. | |
| LR Turn Signal | This output control is used to command the left rear turn signal On and Off. | |
| Parking Lamps | This output control is used to command the parking lamps On and Off. | |
| RF Turn Signal | This output control is used to command the right front turn signal On and Off. | |
| Right Rear Window | This output control is used to command the right rear window Up and Down. | |
| RR Turn Signal | This output control is used to command the right rear turn signal On and Off. | |
| Run/Crank Relay | This output control is used to command the run/crank relay On and Off. | |
| Setup SDM Primary Key in BCM | This output control is used to set up the SDM primary key into the BCM. | |
| Shift Lock Solenoid | This output control is used to command the shift lock solenoid On and Off. | |
| Unlock Rear Doors | This output control is used to command the rear doors to unlock. | |
| Wiper High Speed Relay | This output control is used to command the wiper high speed relay On and Off. | |
| Wiper Relay | This output control is used to command the wiper relay On and Off. | |
| Wiper Washer Motor | This output control is used to command the wiper washer motor On and Off. |
Body Control Module Scan Tool Output Controls
Communication Interface Module Scan Tool Information
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Date | Numeric | This displays DD/MM/YYYY. This is the date the VCIM was manufactured. | |
| GPS Signal | Yes | The scan tool displays Yes or No. Yes is displayed if there is a GPS signal received by the VCIM. | |
| Signal Strength | 68 | The scan tool displays 0-100. This is the VCIM signal strength. | |
| Signal Type | Digital | The scan tool displays Digital or Analog. This is the signal type received by the VCIM. | |
| Time | Numeric | The scan tool displays HH:MM:SS. This is the current time. | |
| Transceiver ID | Varies | The scan tool displays a 2-5 digit value. This is the transceiver identification number. | |
Vehicle Communication Interface Module Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| Acquisition Setting | It lets you choose from various selections of digital cellular technology systems: AMPS (Advanced Mobile Phone System), CDMA (Code Division Multiple Access), PCS (Personal Communications Service), GSM (Global System for Mobile Communications). Select CDMA because Verizon provides the cellular technology for OnStar which uses CDMA system. |
| B1000 Data | This shows the data recorded when DTC B1000 was set in the VCIM. |
| Green LED | The VCIM illuminates the green LED on the inside rearview mirror when ON is selected. |
| Phone Call Test | When ON is selected, VCIM commands OnStar to connect to the OnStar Center. |
| PRL Update | The VCIM performs a preferred roaming list (PRL) update when this is selected. |
| Program Digital Home SID - NID | Select SID (Station ID) and NID (Network Interface Device) per your location. |
| Program Phone Number | VCIM provides mobile ID number and mobile directory number for this vehicle. Use arrow keys to change the phone number if necessary. |
| Red LED | The VCIM illuminates the red LED on the inside rearview mirror when ON is selected. |
| Set Language | Pick an option between 3 different languages: English, French Canadian, and Spanish. |
| VCIM Setup | Screen displays: Move the vehicle to an open, outside area and make sure the vehicle is running. Following this VCIM setup procedure, a call will automatically be made to the OnStar Call Center. Inform the Call Center advisor that a new VCIM has been installed. Have the STID and ESN from the new VCIM ready to provide to the advisor. Refer to Communication Interface Module Programming and Setup for the Reconfiguration Procedure. |
Vehicle Communication Interface Module Scan Tool Output Controls
Digital Radio Receiver Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Radio ON | ||
| Battery Voltage | Varies | This displays volts. This is the voltage input supplied to the digital radio receiver. |
| Ignition Counter | Varies | This displays the number of times the ignition has been cycled from the OFF to ON position. |
| Power Mode | Run | The scan tool displays Reserved, Off Battery Save, Off Asleep, Off Awake, Unlock, RAP Unlock, Accessory, Run, Crank, or RAP. The status of the vehicle power mode (ignition switch). |
Digital Radio Receiver Scan Tool Data Parameters
Door Lock Control Module Scan Tool Information (Driver Door Switch)
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Battery Voltage Signal | Varies | This displays volts. This is the voltage input supplied to the driver door switch. | |
| Door Key Cyl. Unlock Switch | Idle | The scan tool displays Idle or Unlock. This is the state of the driver door key cylinder unlock switch. | |
| Door Lock Actuator Cmd. | Off | The scan tool displays Off, Unlock or Lock. This is the state of the door lock actuator. | |
| Driver Door Ajar Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the driver door ajar switch. | |
| Driver Door Open Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the driver door open switch. | |
| Driver LF Window Switch | Off | The scan tool displays Off, Up, Down, Express Up or Express Down. This is the state of the driver left front window switch. | |
| Driver LR Window Switch | Off | The scan tool displays Off, Up, Down, Express Up or Express Down. This is the state of the driver left rear window switch. | |
| Driver RF Window Switch | Off | The scan tool displays Off, Up, Down, Express Up or Express Down. This is the state of the driver right front window switch. | |
| Driver RR Window Switch | Off | The scan tool displays Off, Up, Down, Express Up or Express Down. This is the state of the driver right rear window switch. | |
| Memory Recall Switches | Varies | This displays volts. This is the voltage input supplied to the driver door memory recall switches. | |
| Memory Switch 12V Ref. | Varies | This displays volts. This is the voltage input supplied to the driver door memory switch. | |
| Memory Switch Backlight | Varies | The scan tool displays %. This is the intensity of the backlighting in the memory switch. | |
| Mirror 5 Volt Reference | ON | The scan tool displays On or Off. This is the state of the voltage reference circuit to the mirror. | |
| Mirror Fold Switch | Idle | The scan tool displays Idle, Extend or Retract. This is the state of the mirror fold switch. | |
| Mirror Motor | Idle | The scan tool displays Idle, Invalid, Up, Down, Left and Right. This is the state of the mirror motor. | |
| Mirror Horizontal Position | Varies | This displays volts. This is the voltage input supplied to the mirror horizontal position. | |
| Mirror Select Switch | Idle | The scan tool displays Idle, Right or Left. This is the state of the mirror select switch. | |
| Mirror Vertical Position | Varies | This displays volts. This is the voltage input supplied to the mirror vertical position. | |
| Rear Window Sw. 12V Ref. | Varies | This displays volts. This is the voltage input supplied to the rear window switch. | |
| Seat Back Heat Mode Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat back heat mode indicator. | |
| Seat Back Heat Mode Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the seat back heat mode switch. | |
| Seat Cool Mode Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat cool mode indicator. | |
| Seat Cool Mode Switch | Off | The scan tool displays On or Off. This is the state of the seat cool mode switch. | |
| Seat Heat High Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat heat high indicator. | |
| Seat Heat Medium Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat heat medium indicator. | |
| Seat Heat Low Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat heat low indicator. | |
| Seat Heat Mode Cmd. | Off | The scan tool displays On or Off. This is the state of the seat heat mode. | |
| Seat Heat Mode Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the seat heat mode switch. | |
| VIN Learned | Yes | The scan tool displays Yes or No. This is the state of the driver door switch VIN programming. | |
| Window Lockout Switch | Off | The scan tool displays On or Off. This is the state of the driver door window lockout switch. | |
| Window Lockout Switch Indicator Command | Off | The scan tool displays On or Off. This is the state of the driver door window lockout switch indicator. | |
| Window Switch Backlight | Varies | The scan tool displays %. This is the intensity of the backlighting in the window switch. | |
Driver Door Switch Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| Door Deadbolt Lock/Unlock | This command will lock and unlock the driver door dead bolt actuator. |
| Door Lock/Unlock | This command will lock and unlock the driver door lock actuator. |
| Front Window Motor | This test will command the front window both up and down. |
| Heated Seat Indicators | This will command the heated seat indicators ON and OFF. |
| Integrated Sw. Backlighting Test | The scan tool commands the % intensity of the integrated switches backlighting. |
| Mirror Fold | This will command the driver mirror to fold and unfold. |
| Mirror Heater | This will command the driver mirror heater ON and OFF. |
| Mirror Left/Right | This will command the driver mirror left and right. |
| Mirror Up/Down | This will command the driver mirror up and down. |
| Non-Integrated Sw. Backlighting Test | The scan tool commands the % intensity of the non-integrated switches backlighting. |
| Power Window Motor Programming | This will enable the driver power window motor to be programmed. |
| Puddle/Courtesy Lamp | This will command the courtesy lamps ON and OFF. |
| Window Lockout Indicator | This will command the window lockout indicator ON and OFF. |
Driver Door Switch Scan Tool Output Controls
Door Lock Control Module Scan Tool Information (Passenger Door Switch)
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Battery Voltage Signal | Varies | This displays volts. This is the voltage input supplied to the passenger door switch. | |
| Door Key Cyl. Unlock Switch | Idle | The scan tool displays Idle or Unlock. This is the state of the passenger door key cylinder unlock switch. | |
| Door Lock Actuator Cmd. | Off | The scan tool displays Off, Unlock or Lock. This is the state of the door lock actuator. | |
| Memory Switch 12V Ref. | Varies | This displays volts. This is the voltage input supplied to the passenger door memory switch. | |
| Memory Switch Backlight | Varies | The scan tool displays %. This is the intensity of the backlighting in the memory switch. | |
| Mirror 5-Volt Reference | ON | The scan tool displays On or Off. This is the state of the voltage reference circuit to the mirror. | |
| Mirror Horizontal Position | Varies | This displays volts. This is the voltage input supplied to the mirror horizontal position. | |
| Mirror Vertical Position | Varies | This displays volts. This is the voltage input supplied to the mirror vertical position. | |
| Passenger Door Ajar Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the passenger door ajar switch. | |
| Passenger Door Open Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the passenger door open switch. | |
| Passenger Window Switch | Off | The scan tool displays Off, Up, Down, Express Up or Express Down. This is the state of the driver left front window switch. | |
| Rear Window Sw. 12V Ref. | Varies | This displays volts. This is the voltage input supplied to the rear window switch. | |
| Seat Back Heat Mode Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat back heat mode indicator. | |
| Seat Back Heat Mode Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the seat back heat mode switch. | |
| Seat Cool Mode Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat cool mode indicator. | |
| Seat Cool Mode Switch | Off | The scan tool displays On or Off. This is the state of the seat cool mode switch. | |
| Seat Heat High Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat heat high indicator. | |
| Seat Heat Medium Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat heat medium indicator. | |
| Seat Heat Low Ind. Cmd. | Off | The scan tool displays On or Off. This is the state of the seat heat low indicator. | |
| Seat Heat Mode Cmd. | Off | The scan tool displays On or Off. This is the state of the seat heat mode. | |
| Seat Heat Mode Sw. | Inactive | The scan tool displays Active or Inactive. This is the state of the seat heat mode switch. | |
| VIN Learned | Yes | The scan tool displays Yes or No. This is the state of the passenger door switch VIN programming. | |
| Window Switch Backlight | Varies | The scan tool displays %. This is the intensity of the backlighting in the window switch. | |
Passenger Door Switch Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| Door Deadbolt Lock/Unlock | This command will lock and unlock the passenger door dead bolt actuator. |
| Door Lock/Unlock | This command will lock and unlock the passenger door lock actuator. |
| Front Window Motor | This test will command the front window both Up and Down. |
| Heated Seat Indicators | This will command the heated seat indicators ON and OFF. |
| Integrated Sw. Backlighting Test | The scan tool commands the % intensity of the integrated switches backlighting. |
| Mirror Fold | This will command the passenger mirror to fold and unfold. |
| Mirror Heater | This will command the passenger mirror heater ON and OFF. |
| Mirror Left/Right | This will command the passenger mirror left and right. |
| Mirror Up/Down | This will command the passenger mirror up and down. |
| Non-Integrated Sw. Backlighting Test | The scan tool commands the % intensity of the non-integrated switches backlighting. |
| Power Window Motor Programming | This will enable the driver power window motor to be programmed. |
| Puddle/Courtesy Lamp | This will command the courtesy lamps ON and OFF. |
Passenger Door Switch Scan Tool Output Controls
Drive Motor Generator Battery Control Module Scan Tool Information
The Drive Motor Generator Battery Control Module Scan Tool Data List contains all Hybrid Battery related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
Use the scan tool data values under the following conditions
- The «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) is complete.
- The On-Board Diagnostics are functioning properly.
- There are no diagnostic trouble codes (DTCs) present.
| IMPORTANT | Do not use a scan tool that displays faulty data. Report the condition to the scan tool manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts. |
Only the parameters listed below are referenced in this manual for diagnosis. If a scan tool displays other parameters, those values are not recommended by General Motors for use in diagnosis.
If all values are within the expected range described below, refer to Symptoms - Hybrid Energy Storage for diagnosis.
The scan tool values from a properly running vehicle may be used for comparison with the vehicle you are diagnosing. The values below represent a typical display recorded from a properly functioning system.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine at idle, upper radiator hose hot, closed throttle, transmission in Park, closed loop operation, accessories OFF, brake pedal not applied, Hood Open, State of charge 60-80 percent. | |||
| 300V Isolation Test Conditions Met | Yes/No | No | This parameter displays the status of the high voltage (HV) system as determined by the battery energy control module (BECM). This parameter indicates if the isolation test will run at the next High voltage power down cycle. Should display Yes after the ignition key is cycled to OFF and before the isolation test runs. |
| 300V Isolation Test Status | Not Run/In Progress/Passed/Failed | Passed or In Progress | This parameter displays the status of the "300V Isolation Test" diagnostic after running during normal vehicle operation or after running the special functions device control located under the battery energy control module (BECM) menu. This parameter can display Not Run, In Progress, Passed, or Failed. |
| Air Bags Deployed | Yes/No | No | This parameter displays information about contactor open reasons as determined by the battery energy control module (BECM). Yes indicates that an airbag deployment has occurred. |
| Calc. Hybrid Batt. Current | Amps | 2.0 to +2.0 amps | This parameter displays the hybrid battery current as determined by the battery energy control module (BECM). This is a discreet input to the BECM from the current sensor located in the drive motor generator battery. The BECM displays this current sensor parameter in Amps. This is a signed value. + sign represents energy being used from the hybrid battery or discharge and - sign represents energy being provided back to the hybrid battery or charge. |
| Calc. Hybrid Batt. Resistance | Ohms | 0.48 Ohms | This parameter displays the total impedance (in ohms) of the hybrid battery, as calculated by the battery energy control module (BECM). The BECM uses all 20 hybrid battery resistance measurement values in this calculation. |
| Contactor Commanded Open | Yes/No | No | This parameter displays information about the high voltage contactor commanded position as determined by the battery energy control module (BECM). Yes indicates that the BECM is commanding the contactors to open. |
| Contactor Sys. Req. Signal | Open/Closed | Closed | This parameter displays the requested contactor state command from the hybrid powertrain control module to the battery energy control module (BECM) over GM Lan for the hybrid battery contactor relay control as determined by the BECM. This can Display open or closed. |
| Contactor Sys. Req. CKT Command | % | 30% when Contactors are CLOSED 70% when Contactors are OPEN | This parameter displays the discrete PWM command from the hybrid powertrain control module for the hybrid battery contactor control as determined by the battery energy control module (BECM). |
| Contactor System Status | Open / Closed / Precharging / Precharge / Failed / Precharge Inhibit | Closed | This parameter displays the status of the hybrid battery contactor system as determined by the battery energy control module (BECM). The status can be displayed as open, closed, precharging, precharge failed or precharge inhibit. |
| Control Module Voltage | Yes/No | No | This parameter displays information about contactor open reasons as determined by the battery energy control module (BECM). Yes indicates that control module voltage supply is high. |
| Control Module Voltage | Volts | 13.7-14.5 Volts | This parameter displays the value of the input voltage used to power up the battery energy control module (BECM), as measured by the BECM. |
| Current Sen. High Range | Amps | +2.0 to -2.0 amps | The hybrid battery current sensor has 3 measurements ranges. This parameter displays the hybrid battery current sensor high range value in Amps as determined by the battery energy control module (BECM). The high range current sensor displays a value between -250 and +250 amps. |
| Current Sen. Low Range | Amps | +2.0 to -2.0 amps | The hybrid battery current sensor has 3 measurements ranges. This parameter displays the hybrid battery current sensor low range value in Amps as determined by the battery energy control module (BECM). The low range current sensor displays a value between -22 and +22 amps. If current levels exceed this range, the value will be saturated at -22 or +22 amps. |
| Current Sen. Medium Range | Amps | +2.0 to -2.0 amps | The hybrid battery current sensor has 3 measurements ranges. This parameter displays the hybrid battery current sensor medium range value in Amps as determined by the battery energy control module (BECM). The medium range current sensor displays a value between -52 and +52 amps. If current levels exceed this range, the value will be saturated at -52 or +52 amps. |
| HVIC Fault | Yes/No | No | This parameter displays information about contactor open reasons as determined by the battery energy control module (BECM). "Yes" indicates that The high voltage interlock circuit has a fault. |
| HVIC Return Current | MA | 6.00 mA | This parameter displays the amount of return current in milli amps returning back to the battery energy control module (BECM) for high voltage interlock circuit detection as determined by the BECM. |
| HVIC Source Current | MA | 6.25 mA | This parameter displays the amount of current sourced in milli amps for high voltage interlock current detection circuit as determined by the battery energy control module (BECM). |
| Hybrid Batt. Charge Hrs. | Ahrs | Varies | This parameter displays the total accumulated amount of amp hours charged or put in to the hybrid batteries as determined by the battery energy control module (BECM). This information will be reset to 0 when the BECM is reprogrammed or replaced. |
| Hybrid Batt. Charge Pwr Available | Watts | 29100 to 30000 Watts | This parameter displays the charge power available in watts from the hybrid battery as determined by the battery energy control module (BECM) power limit calculation. |
| Hybrid Batt. Current Sensor | Volts | 2.4-2.6 Volts | This parameter displays the hybrid battery current sensor in volts as determined by the battery energy control module (BECM). This is a discreet input from the current sensor. |
| Hybrid Batt. Discharge Hrs. | Ahrs | 33 Ahrs, Typical full charge value | This parameter displays the total accumulated amount of amp hours discharged from the hybrid batteries as determined by the battery energy control module (BECM). This information will be reset to 0 when the BECM is reprogrammed or replaced. |
| Hybrid Batt. Discharge Power Available | Watts | 29100 to 30000 Watts | This parameter displays the discharge power available in watts from the hybrid battery as determined by the battery energy control module (BECM) power limit calculations. |
| Hybrid Batt. Inlet Air Temperature Sensor | Volts | 3.2 Volts | This parameter displays the hybrid battery air inlet temperature, in volts, as measured by the battery energy control module (BECM). This sensor is located in the inlet duct for the hybrid battery cooling fan. |
| Hybrid Batt. Max. Cell Temp. | °C (°F) | 26°C (79°F) | This parameter displays the highest temperature value of all the hybrid battery modules temperature sensors as determined by the battery energy control module (BECM). |
| Hybrid Batt. Min. Cell Temp. | °C (°F) | 24°C (75°F) | This parameter displays the lowest temperature value of all the hybrid battery module temperature sensors, as determined by the battery energy control module (BECM). |
| Hybrid Batt. Mod. 1 Temperature | °C (°F) | 24°C (75°F) | This parameter displays the temperature of Hybrid Battery Module Temperature sensor 1 as measured by the battery energy control module (BECM), in °C (°F). The Hybrid Battery Module Temperature sensor 1 is located internal to the hybrid battery and located on hybrid battery number 1. |
| Hybrid Batt. Mod. 1 Temp. Sensor | Volts | 3.2 volts | This parameter displays the Hybrid Battery Module temperature sensor 1, measured in volts, as determined by the battery energy control module (BECM). The Hybrid Battery Module Temperature sensor 1 is located internal to the hybrid battery and located on hybrid battery number 1. |
| Hybrid Batt. Mod. 2 Temperature | °C (°F) | 26°C (79°F) | This parameter displays the temperature of Hybrid Battery Module Temperature sensor 2 as measured by the battery energy control module (BECM), in °C (°F). The Hybrid Battery Module Temperature sensor 2 is located internal to the hybrid battery and located on hybrid battery number 14. |
| Hybrid Batt. Mod. 2 Temp. Sensor | Volts | 3.2 Volts | This parameter displays the Hybrid Battery Module temperature sensor 2, measured in volts, as determined by the battery energy control module (BECM). The Hybrid Battery Module Temperature sensor 2 is located internal to the hybrid battery and located on hybrid battery number 14. |
| Hybrid Batt. Mod. 3 Temperature | °C (°F) | 25°C (77°F) | This parameter displays the temperature of Hybrid Battery Module Temperature sensor 3 as measured by the battery energy control module (BECM), in °C (°F). The Hybrid Battery Module Temperature sensor 3 is located internal to the hybrid battery and located on hybrid battery number 27. |
| Hybrid Batt. Mod. 3 Temp. Sensor | Volts | 3.2 Volts | This parameter displays the Hybrid Battery Module temperature sensor 3, measured in volts, as determined by the battery energy control module (BECM). The Hybrid Battery Module Temperature sensor 3 is located internal to the hybrid battery and located on hybrid battery number 27. |
| Hybrid Batt. Mod. 4 Temperature | °C (°F) | 26°C (79°F) | This parameter displays the temperature of Hybrid Battery Module Temperature sensor 4, measured by the battery energy control module (BECM), in °C (°F). The Hybrid Battery Module Temperature sensor 4 is located internal to the hybrid battery and located on hybrid battery number 40. |
| Hybrid Batt. Mod. 4 Temp. Sensor | Volts | 3.2 Volts | This parameter displays the Hybrid Battery Module temperature sensor 4, measured in volts, as determined by the battery energy control module (BECM). The Hybrid Battery Module Temperature sensor 4 is located internal to the hybrid battery and located on hybrid battery number 40. |
| Hybrid Batt. Outlet Air Temperature | °C (°F) | 25°C (77°F) | This parameter displays the hybrid battery air outlet temperature value, in °C (°F), as measured by the battery energy control module (BECM). This sensor is clipped to the upper tension rod and is located above hybrid battery 3. |
| Hybrid Batt. Outlet Air Temperature Sensor | Volts | 3.2 Volts | This parameter displays the hybrid battery air outlet temperature value, in volts, of the hybrid battery, as measured by the battery energy control module (BECM). This sensor is clipped to the upper tension rod and is located above hybrid battery 3. |
| Hybrid Batt. Pack Fan Commanded | % | 0% | This parameter displays the duty cycle of the hybrid battery fan command in percent, as determined by the battery energy control module (BECM). |
| Hybrid Batt. Pack Resistance | Ohms | 0.024 ohms | This parameter displays the impedance in ohms of the highest battery pair within the hybrid battery assembly, as measured by the battery energy control module (BECM). |
| Hybrid Battery 1 through 10 | Volts | 15.5 Volts | This parameter displays the voltage value of hybrid battery voltage measurements #1-10 of the hybrid battery assembly, as measured by the battery energy control module (BECM). There are 40 hybrid batteries, measured at 20 locations. Each voltage parameter represents the sum of a pair of hybrid batteries. |
| Hybrid Battery 11 | Volts | 15.6 Volts | This parameter displays the voltage value of the hybrid battery voltage measurement #11 of the hybrid battery assembly, as measured by the battery energy control module (BECM). This voltage parameter represents the sum of a pair of hybrid batteries. If the manual disconnect lever is removed, the parameter for #11 will display 0 volts. |
| Hybrid Battery 12 through 20 | Volts | 15.6 Volts | This parameter displays the voltage value of the hybrid battery voltage measurements #12-20 of the hybrid battery assembly, as measured by the battery energy control module (BECM). There are 40 hybrid batteries, measured at 20 locations. Each voltage parameter represents the sum of a pair of hybrid batteries. |
| Hybrid Batt. Inlet Air Temperature | °C (°F) | 23°C (73°F) | This parameter displays the air inlet temperature, in °C (°F), internal to the hybrid battery, as measured by the battery energy control module (BECM). This sensor is located in the inlet duct for the hybrid battery cooling fan. |
| Hybrid Battery Pack Calculated | Volts | 331 Volts | This parameter displays the total voltage of the hybrid battery assembly, as calculated by the battery energy control module (BECM) by summing up all 20 hybrid battery voltage measurement values. |
| Hybrid Battery Pack Fan | RPM | 0 RPM | This parameter displays the speed of the hybrid battery fan in RPM, as measured by the battery energy control module (BECM). |
| Hybrid Battery SOC | % | 70% | This parameter displays the calculated state of charge (SOC) of the hybrid battery as determined by the battery energy control module (BECM). This calculation incorporates many factors such as temperature, voltage and current. |
| Hybrid Battery Terminal | Volts | 330 Volts | This parameter displays the total hybrid battery voltage as measured by the battery energy control module (BECM) on the vehicle side of the High Voltage contactor relays. This measurement is only accurate when the both of the HV contactor relays are closed |
| Max. Hybrid Batt. Module Voltage | Volts | 15.6 Volts | This parameter displays the highest value in Volts of the 20 hybrid battery pair voltage measurement values, as determined by the battery energy control module (BECM). |
| Min. Hybrid Batt. Module Voltage | Volts | 15.5 Volts | This parameter displays the lowest value in volts of the 20 hybrid battery module voltage measurement values, as determined by the battery energy control module (BECM). |
| Precharge Ckt Overtemperature | Yes/No | No | This parameter displays the status of the 300V system. "Yes" indicates this is a reason the battery energy control module (BECM) can not close the high voltage contactors. This is not an actual temperature measurement. This is a calculation made by the BECM. "Yes" indicates that the BECM has calculated that the precharge circuit may be hot and has started the precharge wait time counter. |
| Precharge Inhibited | Yes/No | No | This parameter displays information about contactor open reasons as determined by the battery energy control module (BECM). "Yes" indicates that the BECM is disabling the precharge function. |
| Precharge Time Too long | Yes/No | No | This parameter displays the status of the 300V system. "Yes" indicates this is a reason the battery energy control module (BECM) can not close the high voltage contactors. The precharge time has taken too long. HV DC cables or circuits may be shorted causing higher current draws during the precharge process. |
| Precharge Time Too Short | Yes/No | No | This parameter displays the status of the 300V system. "Yes" indicates this is a reason the battery energy control module (BECM) can not close the high voltage contactors. The precharge time was to fast. High voltage DC cables/circuit may be open causing a fast precharge. |
| Precharge wait time | Seconds | 0 Seconds | This parameter displays the amount of time, in seconds, until the battery energy control module (BECM) will allow a 300V precharge sequence to occur. The BECM can disable precharge in order to protect the precharge resistor and circuit from overheating. |
| Service Disconnect | Yes/No | No | This parameter displays information about contactor open reasons as determined by the battery energy control module (BECM). "Yes" indicates that the HV manual disconnect lever has been removed. |
Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| Battery Pack Fan Speed | The Battery Pack Fan Speed represents the RPM of the hybrid battery vent fan. The Hybrid Batt Pack Fan Commanded value represents the percent duty cycle which determines the speed of the battery fan once the Battery Pack Fan Speed Special function is enabled. The hybrid battery pack fan speed output control on the scan tool can command the hybrid battery fan speed to 20 percent, 40 percent, or 60 percent. The battery energy control module (BECM) receives a cooling fan request from serial data gateway module (SDGM). The BECM then controls the hybrid battery vent fan using a pulse width modulated circuit. Under certain operating temperatures or failure conditions the BECM will run the fan. The duty cycle is represented by a percentage of ON energized time. The higher the percent the faster the fan speed. Approximately 60 percent duty cycle represents an ON and HIGH fan speed. Approximately 20 percent duty cycle represents an ON and LOW fan speed. Zero percent represents an OFF non-energized commanded state. The Hybrid Battery Pack Fan RPM value on scan tool should increase when Hybrid Battery Pack Fan Commanded percent duty cycle is increased. When the output control is exited, the fan duty cycle is determined by the vehicle or the BECM. The following control limits apply: If the hybrid battery temperature is determined to be over 52°C (126°F) and the battery pack is in cooling mode, the hybrid battery fan may not be commanded OFF. If the fan is requested OFF, the message "Hybrid battery temp is out of range" appears on the scan tool display. The hybrid battery pack fan may not be commanded ON if the RUN/Crank voltage is too low as detected by the BECM. If the RUN/Crank voltage is too low as detected, the message "RUN/Crank voltage is too low" appears on the scan tool display. The hybrid battery pack fan may not be commanded On if the hybrid battery pack fan related DTCs are active. If hybrid battery pack fan related DTCs are active, the message "DTC present" appears on the scan tool display. |
| Negative Contactor | Hybrid battery Negative Contactor Special Function output control will allow the HV negative contactor relay to be closed by the BECM once the negative contactor relay output control is selected. The System will only allow the command of one contactor relay at a time. The high voltage manual disconnect must be removed. The high voltage contactor relays are opened and closed by the BECM. The high voltage contactor relays are normally open. The control circuits for these contactor relays are high side drive. The BECM supplies 12 volts to the control circuit in order to close the contactor relay. When the contactor relay is commanded CLOSED by using this special function, it will time out and open after approximately 15 seconds. When the output control is exited, the contactor relay is returned to the normally open position. You should be able to hear an audible click when the contactor relay open and closes. The following control limits apply: The high voltage manual disconnect lever must be removed. The output control for HV contactor command will not work when the BECM detects that the HV contactor relay is not OPEN when commanded CLOSED. When the BECM detects that the HV contactor relay is not OPEN, the message "High voltage contactor state must be open" appears on the scan tool display. The output control for HV contactor command will not work when the BECM detects that the HV manual disconnect lever has not been removed. When the BECM detects that the HV manual disconnect lever has not been removed, the message "High voltage manual disconnect must be removed" appears on the scan tool display. |
| Positive Contactor | Hybrid battery Positive Contactor Special Function output control will allow the HV positive contactor relay to be closed by the BECM once the positive contactor relay output control is selected. The System will only allow the command of one contactor relay at a time. The high voltage manual disconnect must be removed. The high voltage contactor relays are opened and closed by the BECM. The high voltage contactor relays are normally open. The control circuits for these contactor relays are high side drive. The BECM supplies 12 volts to the control circuit in order to close the contactor relay. When the contactor relay is commanded CLOSED by using this special function, it will time out and open after approximately 15 seconds. When the output control is exited, the contactor relay is returned to the normally open position. You should be able to hear an audible click when the contactor relay open and closes. The following control limits apply: The high voltage manual disconnect lever must be removed. The output control for HV contactor command will not work when the BECM detects that the HV contactor relay is not OPEN when commanded CLOSED. When the BECM detects that the HV contactor relay is not OPEN, the message "High voltage contactor state must be open" appears on the scan tool display. The output control for HV contactor command will not work when the BECM detects that the HV manual disconnect lever has not been removed. When the BECM detects that the HV manual disconnect lever has not been removed, the message "High voltage manual disconnect must be removed" appears on the scan tool display. |
| Precharge Contactor | Hybrid battery Precharge Contactor Special Function output control will allow the HV precharge contactor, also known as the current limit relay, to be closed by the BECM once the Precharge Contactor output control enable is selected. The System will only allow the command of one contactor relay at a time. The high voltage manual disconnect must be removed. The high voltage contactor relays are opened and closed by the BECM. The high voltage contactor relays are normally open. The control circuits for these contactor relays are high side drive. The BECM supplies 12 volts to the control circuit in order to close the contactor relay. When the precharge contactor, also known as the current limit relay, is commanded CLOSED by using this special function, it will time out and open after approximately 15 seconds. When the output control is exited, the contactor relay is returned to the normally open position. You should be able to hear an audible click when the contactor relay open and closes. The following control limits apply: The high voltage manual disconnect lever must be removed. The output control for HV contactor command will not work when the BECM detects that the HV contactor relay is not OPEN when commanded CLOSED. When the BECM detects that the HV contactor relay is not OPEN, the message "High voltage contactor state must be open" appears on the scan tool display. The output control for HV contactor command will not work when the BECM detects that the HV manual disconnect lever has not been removed. When the BECM detects that the HV manual disconnect lever has not been removed, the message "High voltage manual disconnect must be removed" appears on the scan tool display. |
| 300V Isolation Test | This output control test is designed to run the hybrid battery Isolation test with the contactors closed while connected to the EL-48458 pre-charge tester. This will test the HV DC cables for electrical Isolation and the HV DC Precharge sequence for operation. for installation and removal procedure of the pre-charge tester, refer to High Voltage System Diagnosis (EL-48458) . The BECM receives a PWM contactor command duty cycle input from the HCP. The duty cycle is represented by a percentage of ON time. A 30 percent duty cycle represents a close contactor command or energized state. A 70 percent duty cycle represents an open contactor command. Before using this output control, the EL-48458 must be connected. Refer to High Voltage System Diagnosis (EL-48458) for pre-charge tester installation and removal procedures. Install the EL-48458 pre-charge tester, Switch the ignition to the ON position, move the HV contactor relay switch on the EL-48458 pre-charge tester to the closed position, the BECM should then close the HV contactor relays. Verify that the high voltage circuit LED for Hi-voltage greater than 60 volts illuminates and stays illuminated. On the scan tool select the special function output control for the 300V Isolation test. The scan tool will then send a command to the BECM to run the isolation test and report the isolation test resistance results. When testing is complete, remove the EL-48458 , refer to High Voltage System Diagnosis (EL-48458) . The output control will not function unless the following conditions are met: When the high voltage manual disconnect is removed as determined by the BECM. GMLAN communications between the HPCM and the BECM HVIC function disabled. |
Scan Tool Output Controls
Driver Seat Adjuster Memory Module Scan Tool Information
| Scan Tool Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF | |||
| Driver Seat Front Vertical Sensor | Varies | The scan tool displays volts. This is the state of the driver front vertical sensor. | |
| Driver Seat Horizontal Sensor | Varies | The scan tool displays volts. This is the state of the driver horizontal sensor. | |
| Driver Seat HVC Mode | Off | The scan tool displays Off, Back & Cushion, Back Only, Cool. This is the state of the driver seat HVAC mode. | |
| Driver Seat HVC Level | Varies | The scan tool displays High, Medium, Low. This is the state of the driver seat HVAC level. | |
| Driver Seat Rear Vertical Sensor | Varies | The scan tool displays volts. This is the state of the driver seat rear vertical sensor. | |
| Driver Seat Recline Sensor | Varies | The scan tool displays volts. This is the state of the driver seat recline sensor. | |
| Front Vertical Downward Switch | Inactive | The scan tool displays Inactive/Active. This is the state of the front vertical downward switch. | |
| Front Vertical Upward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the front vertical upward switch. | |
| Front Vertical Motor Downward | Inactive | The scan tool displays Inactive/Active. This is the state of the front vertical motor downward. | |
| Front Vertical Motor Upward | Inactive | The scan tool displays Active/Inactive. This is the state of the front vertical motor upward. | |
| Horizontal Motor Forward | Inactive | The scan tool displays Active/Inactive. This is the state of the horizontal motor forward. | |
| Horizontal Motor Rearward | Inactive | The scan tool displays Active/Inactive. This is the state of the horizontal motor rearward. | |
| Horizontal Forward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the horizontal forward switch. | |
| Horizontal Rearward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the horizontal rearward switch. | |
| Lumbar Downward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the lumbar downward switch. | |
| Lumbar Forward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the lumbar forward switch. | |
| Lumbar Horizontal Sensor | Varies | The scan tool displays volts. This is the state of the lumbar horizontal sensor. | |
| Lumbar Inflation Value | Varies | The scan tool displays volts. This is the state of the lumbar inflation. | |
| Lumbar Motor Downward | Inactive | The scan tool displays Active/Inactive. This is the state of the lumbar motor downward. | |
| Lumbar Motor Forward | Inactive | The scan tool displays Active/Inactive. This is the state of the lumbar motor forward. | |
| Lumbar Motor Rearward | Inactive | The scan tool displays Active/Inactive. This is the state of the lumbar motor rearward. | |
| Lumbar Motor Upward | Inactive | The scan tool displays Active/Inactive. This is the state of the lumbar motor upward. | |
| Lumbar Rearward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the lumbar rearward switch. | |
| Lumbar Upward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the lumbar upward switch. | |
| Lumbar Vertical Position | Varies | The scan tool displays volts. This is the state of the lumbar vertical position. | |
| Lumbar Vertical Sensor | Varies | The scan tool displays volts. This is the state of the lumbar vertical sensor. | |
| Massage Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the massage switch. | |
| Massage Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the massage switch. | |
| Memory 2 Adj. Pedals Position | Volts | The scan tool displays volts. This is the state of the memory 1 for the adjustable pedals position. | |
| Memory 2 Adj. Pedals Position | Varies | The scan tool displays volts. This is the state of the memory 2 for the adjustable pedals position. | |
| Passenger Seat HVC Mode. | Off | The scan tool displays Off, Back & Cushion, Back Only, or Cool. This is the state of the passenger seat HVAC mode. | |
| Passenger Seat HVC Level | Varies | The scan tool displays High, Medium, and Low. This is the state of the HVAC level. | |
| Pedal Aft Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the pedal aft switch. | |
| Pedal Forward | Inactive | The scan tool displays Active/Inactive. This is the state of the pedal forward. | |
| Pedal Forward Softstep Pos. | Varies | The scan tool displays Volts. This is the state of the pedal forward softstep position. | |
| Pedal Forward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the pedal forward switch. | |
| Pedal Position | Varies | The scan tool displays Volts. This is the state of the pedal position. | |
| Pedal Rearward | Inactive | The scan tool displays Active/Inactive. This is the state of the pedal rearward. | |
| Pedal Rearward Softstop Pos. | Varies | The scan tool displays Volts. This is the state of the pedal rearward softstop position. | |
| Pedal Softstop Learn Status | Learned | The scan tool displays Learned/Unlearned/Failed. This is the status of whether or not the pedal softstop learned it's position. | |
| Recline Forward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the recline forward switch. | |
| Recline Motor Forward | Inactive | The scan tool displays Active/Inactive. This is the state of the recline motor forward. | |
| Recline Motor Rearward | Inactive | The scan tool displays Active/Inactive. This is the state of the recline motor rearward. | |
| Recline Rearward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the recline rearward switch. | |
| Rear Vertical Downward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the rear vertical downward switch. | |
| Rear Vertical Motor Downward | Inactive | The scan tool displays Active/Inactive. This is the state of the rear vertical motor downward. | |
| Rear Vertical Motor Upward | Inactive | The scan tool displays Active/Inactive. This is the state of the rear vertical motor upward. | |
| Rear Vertical Upward Switch | Inactive | The scan tool displays Active/Inactive. This is the state of the rear vertical | |
| Seat Horizontal Position | Varies | The scan tool displays volts. This is the state of the seat horizontal position. | |
| Seat Front Vertical Position | Varies | The scan tool displays volts. This is the state of the seat front vertical position. | |
| Seat Rear Vertical Position | Varies | The scan tool displays volts. This is the state of the seat rear vertical position. | |
| Seat Recline Position | Varies | The scan tool displays volts. This is the state of the seat recline position. | |
| Seat Recline Position | Varies | The scan tool displays volts. This is the state of the seat recline position. | |
Driver Position Module
Driver Seat and Passenger Seat Heater Control Module Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Driver Seat Back Heat Status | Inactive | The scan tool displays Active/Inactive. This is the state of the driver seat back heat. |
| Driver Seat Cushion Heat Status | Inactive | The scan tool displays Active/Inactive. This is the state of the driver seat cushion heat. |
| Driver Seat HVC Level | Varies | The scan tool displays High, Medium or Low. This is the current level of seat heating as requested by the heated seat switch. |
| Driver Seat HVC Mode | Varies | The scan tool displays Off, Back & Cushion, Back Only, or Cool. This is the current mode of operation for the driver seat. |
| Passenger Seat Back Heat Status | Inactive | The scan tool displays Active/Inactive. This is the state of the passenger seat back heat. |
| Passenger Seat Back Heat Status | Inactive | The scan tool displays Active/Inactive. This is the state of the passenger seat cushion heat. |
| Passenger Seat HVC Level | Varies | The scan tool displays High, Medium or Low. This is the current level of seat heating as requested by the heated seat switch. |
| Passenger Seat HVC Mode | Varies | The scan tool displays Off, Back & Cushion, Back Only, or Cool. This is the current mode of operation for the passenger seat. |
| Seat Heat Supply Voltage | Inactive | The scan tool displays Active or Inactive. Active is displayed when the module commands seat heating ON. |
Heated Seat Module Scan Tool Data Parameters
Electronic Brake Control Module Scan Tool Information (Non-Hybrid)
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| ABS Active | No | The scan tool displays Yes or No. Yes is displayed if the ABS system is engaged. |
| ABS Failed | No | The scan tool displays Yes or No. Yes is displayed if there is an ABS fault. |
| Battery Voltage Signal | Varies | This displays volts. This is the voltage status of the electronic brake control module (EBCM). |
| Brake Fluid Level Status | OK | The scan tool displays OK or Low. This is the state of the brake fluid level. |
| Brake Pressure Sensor Input | Varies | The scan tool displays 0-5 Volts. The scan tool displays approximately 1.5 volts when the ignition is ON. |
| BPP Signal | Released | The scan tool displays Applied or Released. This is the state of the brake pedal. |
| Delivered Torque | 0% | The scan tool displays 0-100%. The scan tool displays the duty cycle of the delivered torque PWM signal. The duty cycle of the signal is used to transmit how much engine torque the ECM is delivering. Normal values are between 10 and 90 percent duty cycle. |
| Digital HWPS Index Pulse | Varies | The scan tool displays High or Low. This is the state of the digital HWPS index pulse. Every time the steering wheel turns, it toggles between high and low. |
| DRP Active | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
| DRP Disabled | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
| Engine Drag Control Failed | No | The scan tool displays Yes or No. The state of the engine drag control depends on the state of traction of the tires and engine RPM. |
| HBB Calibration Status | Off | This displays On or Off. This is the commanded state of the passenger seat belt indicator. |
| Lateral Accelerometer Signal | Off | This displays On or Off. This is the state of the passenger seat belt indicator. |
| LF Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the left front wheel speed sensor. |
| LF Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left front inlet valve solenoid is commanded on. |
| LF Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left front outlet valve solenoid is commanded on. |
| LR Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the left rear wheel speed sensor. |
| LR Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left rear inlet valve solenoid is commanded on. |
| LR Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left rear outlet valve solenoid is commanded on. |
| Panic Brake Assist Failed | No | The scan tool displays Yes or No. The state of the panic brake assist depends on the state of traction of the tires and engine RPM. |
| Pump Motor Command Voltage | Varies | This displays Volts. This is the voltage status of the EBCM pump motor command. |
| Requested Torque | 0% | The scan tool displays 0-10%. The scan tool displays the duty cycle of the Requested Torque PWM signal. The duty cycle of the signal is used to transmit how much engine torque the EBCM is requested. |
| RF Inlet Solenoid | Off | The scan tool displays On or Off. On is displayed when the right front inlet valve solenoid is commanded on. |
| RF Outlet Solenoid | Off | The scan tool displays On or Off. On is displayed when the right front outlet valve solenoid is commanded on. |
| RF Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right front wheel speed sensor. |
| RR Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the right rear inlet valve solenoid is commanded on. |
| RR Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the right rear outlet valve solenoid is commanded on. |
| RR Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right rear wheel speed sensor. |
| Steering Wheel Position | Varies | This displays degrees. This is the signal received from the steering angle sensor. |
| TCS Active | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
| TCS Failed | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
| VSES Active | No | The scan tool displays Yes or No. The scan tool displays Yes when VSES is active, and No when VSES is inactive. |
| VSES Failed | No | The scan tool will display Yes or No depending on the state of the ABS indicator. |
| Yaw Rate Sensor | Varies | This displays Volts. The voltage varies depending on the angle of the vehicle. |
| BCM Brake Pedal Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| TCM Current Gear Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| ECM Accelerator Pedal Position Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| TCM Trans. Gear Up/Down Shift Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| BCM Traction Control Switch Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| TCM Trans. Output Shaft Speed Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| BCM Brake Fluid level Low Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| ECM Actual Engine Torque Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| ECM Requested Engine Torque Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| ECM Maximum Engine Torque Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| ECM Minimum Engine Torque Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
| ECM Engine Speed Signal | Valid | The scan tool displays Valid or Invalid. The scan tool will display Invalid when the EBCM has not received the signal from the respective module and Valid during normal vehicle operation. |
Electronic Brake Control Module Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| ABS Motor Test | This is used in order to command the ABS pump motor On or Off. |
| Acceleration Sensor Reset | This is used in order to reset the acceleration sensor. |
| Automated Bleed | This is used in order to bleed ABS hydraulics. Refer to Antilock Brake System Automated Bleed Antilock Brake System Automated Bleed . |
| Brake Press. Sen. Calibration | This is used in order to calibrate the brake pressure sensor. |
| LF Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
| LF Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
| LR Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
| LR Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
| RF Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
| RF Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
| RR Inlet Valve Solenoid | Commands the solenoid ON and OFF. |
| RR Outlet Valve Solenoid | Commands the solenoid ON and OFF. |
Electronic Brake Control Module Scan Tool Output Controls
Electronic Brake Control Module Scan Tool Information (Hybrid)
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| ABS Active | No | The scan tool displays Yes or No. Yes is displayed if the ABS system is engaged. |
| ABS Failed | No | The scan tool displays Yes or No. Yes is displayed if there is an ABS fault. |
| ABS Slip Control Power Status | Active | The scan tool displays Active or Inactive. |
| Acceleration Sensor Supply Voltage | Varies | This displays volts. This is the voltage status of the supply circuit to the acceleration sensor. |
| Accum. Pressure Sensor | Varies | This displays the pressure of the accumulator. |
| Battery Voltage Signal | Varies | This displays volts. This is the voltage status of the electronic brake control module (EBCM). |
| BMC Primary Piston Position Sensor A | Varies | This displays volts. This is the brake master cylinder primary piston sensor A reference value. |
| BMC Primary Piston Position Sensor B | Varies | This displays volts. This is the brake master cylinder primary piston sensor B reference valve. |
| BMC Primary Piston Reference Position | Varies | This displays mm. This is the value used to compare the position of the primary piston sensors. |
| BMC Prim. Piston Pos. Sen. 5V Reference Position | Varies | This displays volts. This is the voltage supply to the brake master cylinder primary piston sensor. |
| BMC Primary Piston Position | Learned | The scan tool displays Learned or Not Learned. This is the brake master cylinder primary piston position sensor zeroed or learned value. |
| Brake Fluid Level Status | OK | The scan tool displays OK or Low. This is the state of the brake fluid level. |
| Brake Boost Power Status | Enabled | The scan tool displays Enabled or Disabled. |
| Brake Boost Status | Inactive | The scan tool displays Active or Inactive. |
| Brake Boost Solenoid Cmd. | Inactive | The scan tool displays Active or Inactive. |
| Brake Pressure Sensor Input | Varies | This displays psi/kpa. This is the current brake applied pressure. |
| Brake Switch Status | Released | The scan tool displays Applied or Released. This is the state of the brake pedal. |
| Digital SWPS Phase A | Varies | The scan tool displays High or Low. This is the state of the digital SWPS index pulse. Every time the steering wheel turns, it toggles between high and low. |
| Digital SWPS Phase B | Varies | The scan tool displays High or Low. This is the state of the digital SWPS index pulse. Every time the steering wheel turns, it toggles between high and low. |
| DRP Active | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
| DRP Disabled | No | The scan tool displays Yes or No. This is the state of the dynamic rear proportioning (DRP). |
| Engine Drag Control Failed | No | The scan tool displays Yes or No. The state of the engine drag control depends on the state of traction of the tires and engine RPM. |
| HS Communication | Yes | The scan tool displays Yes or No. |
| Ignition Volts | Varies | This displays volts. This is the ignition voltage status of the electronic brake control module (EBCM). |
| Lateral Accelerometer Signal | M/s 2 | The scan tool displays m/s 2 . This is the current rate of the vehicle acceleration or deceleration as reported by the lateral accelerometer sensor. |
| Longitudinal Accelerometer Signal | Varies | The scan tool displays m/s 2 . This is the current rate of the vehicle acceleration or deceleration as reported by the longitudinal accelerometer sensor. |
| Low Traction Lamp Command | Off | The scan tool displays On or Off. |
| LF Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the left front wheel speed sensor. |
| LF Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left front inlet valve solenoid is commanded on. |
| LF Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left front outlet valve solenoid is commanded on. |
| LR Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the left rear wheel speed sensor. |
| LR Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left rear inlet valve solenoid is commanded on. |
| LR Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the left rear outlet valve solenoid is commanded on. |
| Master Cylinder Pressure Sensor Input | Varies | This displays psi/kpa. This is the current master cylinder applied pressure. |
| NC Brake Boost Valve Cmd. | Inactive | The scan tool displays Active or Inactive. |
| NO Brake Boost Valve Cmd. | Inactive | The scan tool displays Active or Inactive. |
| Panic Brake Assist Failed | No | The scan tool displays Yes or No. The state of the panic brake assist depends on the state of traction of the tires and engine RPM. |
| Pump Motor Command Voltage | Varies | This displays Volts. This is the voltage status of the EBCM pump motor command. |
| Proportioning Solenoid Valve | Inactive | The scan tool displays Active or Inactive. |
| Rear Brake Pressure Sensor | Varies | This displays psi/kpa. This is the current rear brake applied pressure. |
| Regenerative Braking Status | Active | The scan tool displays Active or Inactive. |
| RF Inlet Solenoid | Off | The scan tool displays On or Off. On is displayed when the right front inlet valve solenoid is commanded on. |
| RF Outlet Solenoid | Off | The scan tool displays On or Off. On is displayed when the right front outlet valve solenoid is commanded on. |
| RF Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right front wheel speed sensor. |
| RR Inlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the right rear inlet valve solenoid is commanded on. |
| RR Outlet Solenoid Command | Off | The scan tool displays On or Off. On is displayed when the right rear outlet valve solenoid is commanded on. |
| RR Wheel Speed Sensor | 0 km/h (0 mph) | This displays km/h (mph). This is the current speed of the right rear wheel speed sensor. |
| Steering Wheel Position | Varies | This displays °. This is the current angle of the steering position sensor. |
| Steering Wheel Sensor Signal | Varies | This displays volts. This is the signal received from the steering angle sensor. |
| SWPS Signal A | Varies | This displays volts. This is the signal received from the steering angle sensor. |
| TCS Active | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
| TCS Failed | No | The scan tool displays Yes or No. This is the state of the traction control system (TCS). |
| Torque Requested | Varies | The scan tool displays Lb-ft/N.m |
| VSES Active | No | The scan tool displays Yes or No. The scan tool displays Yes when VSES is active, and No when VSES is inactive. |
| VSES Failed | No | The scan tool will display Yes or No depending on the state of the ABS indicator. |
| Yaw Rate Sensor | Varies | This displays °/sec. The scan tool displays the signal received from the yaw rate sensor. |
Electronic Brake Control Module Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| ABS Motor | This is used in order to command the ABS pump motor On or OFF. |
| Acceleration Sensor Reset | This is used in order to reset the acceleration sensor. |
| Automated Bleed | This is used in order to bleed ABS hydraulics. |
Electronic Brake Control Module Scan Tool Output Controls
Electronic Suspension Control Module Scan Tool Information
| Scan Tool Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Turn the Ignition ON, Engine OFF/Vehicle Trim Height within Specifications | |||
| Battery Voltage Signal | B+ | The scan tool displays 0-26.0 volts. The battery voltage represents the system voltage measured at the controller battery input. | |
| LF Damper Actuator Command | 0-90% | The scan tool displays 0-100%. This percentage represents the commanded state of the shock absorber solenoid. When the electronic suspension control (ESC) special functions is selected on the scan tool menu and the left front shock solenoid is commanded ON, the percentage will increase. When the left front shock solenoid is commanded OFF, the percentage will decrease. | |
| LF Position Sensor | 1.5-3.5 Volts | The scan tool displays 0-5.0 volts. The position sensor is a variable resistor which changes with vehicle trim height. The ESC system uses this voltage reading to determine different road and driving conditions. The ESC system adjusts the damping level in each shock absorber based upon the voltage level received back from all 4 position sensors. | |
| LR Damper Actuator Command | 0-90% | The scan tool displays 0-100%. This percentage represents the commanded state of the shock absorbers. When the ESC system commands the shock absorbers ON, the percentage will increase. When the ESC system commands the shock absorbers OFF, the percentage will decrease. | |
| LR Position Sensor | 1.5-3.5 Volts | The scan tool displays 0-5.0 volts. The position sensor is a variable resistor which changes with vehicle trim height. The ESC system uses this voltage reading to determine different road and driving conditions. The ESC system adjusts the damping level in each shock absorber based upon the voltage level received back from all 4 position sensors. | |
| Rear Leveling Air Pressure (If Equipped) | Varies | The scan tool displays volts. This is the current voltage monitored by the ESC module of the rear leveling air pressure. | |
| Rear Leveling Air Pressure (If Equipped) | Varies | The scan tool displays kPa or psi. The scan tool displays the amount of rear air leveling pressure stored in the electronic suspension control module. | |
| RF Damper Actuator Command | 0-90% | The scan tool displays 0-100%. This percentage represents the commanded state of the shock absorber solenoid. When the ESC special functions is selected on the scan tool menu and the right front shock solenoid is commanded ON, the percentage will increase. When the right front shock solenoid is commanded OFF, the percentage will decrease. | |
| RF Position Sensor | 1.5-3.5 Volts | The scan tool displays 0-5.0 volts. The position sensor is a variable resistor which changes with vehicle trim height. The ESC system uses this voltage reading to determine different road and driving conditions. The ESC system adjusts the damping level in each shock absorber based upon the voltage level received back from all 4 position sensors. | |
| RR Damper Actuator Command | 0-90% | The scan tool displays 0-100%. This percentage represents the commanded state of the shock absorber solenoid. When the ESC special functions is selected on the scan tool menu and the right rear shock solenoid is commanded ON, the percentage will increase. When the right rear shock solenoid is commanded OFF, the percentage will decrease. | |
| RR Position Sensor | 1.5-3.5 Volts | The scan tool displays 0-5.0 volts. The position sensor is a variable resistor which changes with vehicle trim height. The ESC system uses this voltage reading to determine different road and driving conditions. The ESC system adjusts the damping level in each shock absorber based upon the voltage level received back from all 4 position sensors. | |
| Vehicle Speed | Varies | The scan tool displays 0-255 km/h (0-159 mph). The ESC system obtains vehicle speed data from the powertrain control module (PCM) on a dedicated input. The PCM is responsible for calculating correct vehicle speed data. | |
Electronic Suspension Control Module Scan Tool Data List
| Scan Tool Output Control | Description |
|---|---|
| ALC Trimset | Calibrates the adjustment of the height sensor |
| Compressor Test | Commands the air pressure of the shocks ON and OFF |
| Exhaust Valve | Commands the exhaust value ON and OFF. The engine must be running to use this control. Commands the exhaust value ON and OFF. The engine must be running to use this control. |
| LF Damper Actuator Command | Commands the left front shock solenoid ON and OFF. |
| LR Damper Actuator Command | Commands the left rear shock solenoid ON and OFF. |
| RF Damper Actuator Command | Commands the right front shock solenoid ON and OFF. |
| RR Damper Actuator Command | Commands the right rear shock solenoid ON and OFF. |
| Reset Diagnostic Counter | Commands the module to reset the internal ignition cycle counter. This enables the module to set DTCs immediately by bypassing the requirement to see the fault condition for 3 consecutive ignition cycles before a DTC is set. Once the ignition is cycled the ignition cycle count is re-enabled. |
Electronic Suspension Control Scan Tool Output
Engine Control Module Scan Tool Information (V8 Gasoline)
The Engine Control Module Scan Tool Data List contains all engine-related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
Use the Engine Scan Tool Data List only after the following is determined
- The «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) is completed.
- No DTCs are set
- The on-board diagnostics are functioning properly
The scan tool values from a properly running engine may be used for comparison with the engine you are diagnosing. The engine scan tool data list represents values that would be seen on a normally running engine.
Note. A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement.
Only the parameters listed below are referenced in this service manual for use in diagnosis.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Base Operating Conditions: Engine Idling/Radiator Hose Hot/Park or Neutral/Closed Loop/Accessories OFF | |||
| 5-volt Reference 1 | 5 Volts | This parameter displays the voltage sensed on the 5-volt reference 1 circuit at the control module. The scan tool will display a higher value at higher voltage. The scan tool will display a lower value at lower voltage. | |
| 5-volt Reference 1 Circuit Status | OK | This parameter will display OK if the circuit is good or Fault if a short to ground, short to B+ or open circuit is present. | |
| 5-volt Reference 2 | 5 Volts | This parameter displays the voltage sensed on the 5-volt reference 2 circuit at the control module. The scan tool will display a higher value at higher voltage. The scan tool will display a lower value at lower voltage. | |
| 5-volt Reference 2 Circuit Status | OK | This parameter will display OK if the circuit is good or Fault if a short to ground, short to B+ or open circuit is present. | |
| A/C Request Signal | NO | The scan tool displays YES/NO. The HVAC module receives an input request when the HVAC module is turned ON. | |
| A/C Relay Command | OFF | This parameter displays the commanded state of the air conditioning (A/C) clutch relay control circuit. The scan tool will display ON or OFF. ON indicates the A/C clutch relay control circuit is being grounded by the control module, allowing voltage to the A/C compressor clutch. OFF indicates the A/C clutch relay is not being commanded ON by the control module. | |
| A/C Relay Ckt Short Gnd Test Status | OK | This displays the status of the relay control circuit. It can display OK, Fault or Not Run. | |
| A/C Relay Ckt Open Test Status | OK | This displays the status of the relay control circuit. It can display OK, Fault or Not Run. | |
| A/C Relay Ckt Short Volts Test Status | Not Run | This displays the status of the relay control circuit. It can display OK, Fault or Not Run. | |
| A/C High side Pressure Sensor | A/C OFF | 1.43 Volts | The scan tool displays 0-5 volts. The voltage applied to the ECM input for the A/C refrigerant pressure sensor. |
| A/C ON | 2.39 Volts | ||
| A/C High side Pressure Sensor | A/C OFF | 500-2,220 kPa (72-319 psi) | The scan tool displays 0-3450 kPa (0-500 psi). The voltage applied to the ECM input from the A/C refrigerant pressure sensor is converted to a pressure value. |
| A/C ON | 300-1,220 kPa (43-174 psi) | ||
| A/C OFF for WOT | A/C ON | NO | The scan tool displays YES/NO. The state of the A/C request related to wide open throttle. |
| A/C Pressure Disable | NO | The scan tool displays YES/NO. The state of the A/C refrigerant pressure sensor and circuitry. | |
| A/C Disengage 1-8 History | A/C ON | Reason for A/C Disengagement | The scan tool displays None, A/C Pressure, Engine Speed, Battery Voltage, Stall Prevention, RPM Unstable, WOT, Launch Performance or Coolant Hot. The scan tool displays None if OK. |
| Air Flow Calculated | 3-7 g/s | This parameter displays the air flow of the engine as calculated by the control module using information from the manifold absolute pressure (MAP) sensor. The scan tool will display a range of values indicating a high air flow when MAP pressure is high and a low air flow when MAP pressure is low. This value is listed in grams per second (g/s). | |
| Ambient Air Temperature | Varies | Outside temperature at any given altitude expressed in degrees | |
| APP Indicated Angle | Accelerator pedal not applied | 0% | This parameter displays the angle of the accelerator pedal as calculated by the control module using the signals from the accelerator pedal position sensors. The accelerator pedal position (APP) indicated angle is a range of values indicating a low percentage when the accelerator pedal is not depressed to a high percentage when the accelerator pedal is fully depressed. |
| Accelerator pedal WOT | 100% | ||
| APP Sensor | Varies | This parameter displays the average of the APP sensors as calculated by the throttle actuator control (TAC) module. The APP average is a range of values indicating a low number when the accelerator pedal is not depressed to a high number when the accelerator pedal is fully depressed. This value is listed in counts. | |
| APP Sensor 1 | Accelerator pedal not actuated | 0.7-1.2 Volts | This parameter displays the voltage signal sent to the control module from APP sensor 1 of the APP sensor assembly. APP sensor 1 is a range of values indicating a low voltage when the accelerator pedal is not depressed to a high voltage when the accelerator pedal is fully depressed. |
| Accelerator pedal fully actuated | 4.2-4.5 Volts | ||
| APP Sensor 1 Indicated Position | Accelerator pedal not actuated | 0% | This parameter displays the angle of the APP sensor 1 as calculated by the control module using the signal from the APP sensor 1. APP sensor 1 is a range of values indicating a low percentage when the accelerator pedal is not depressed to a high percentage when the accelerator pedal is fully depressed. |
| Accelerator pedal fully actuated | 100% | ||
| APP Sensor 2 | Accelerator pedal not actuated | 0.3-0.5 Volts | This parameter displays the voltage signal sent to the control module from APP sensor 2 of the APP sensor assembly. APP sensor 2 is a range of values indicating a low voltage when the accelerator pedal is not depressed to a high voltage when the accelerator pedal is fully depressed. |
| Accelerator pedal fully actuated | 2.2-2.5 Volts | ||
| APP Sensor 2 Indicated Position | Accelerator pedal not actuated | 0% | This parameter displays the angle of the APP sensor 2 as calculated by the control module using the signal from the APP sensor 2. APP sensor 2 is a range of values indicating a low percentage when the accelerator pedal is not depressed to a high percentage when the accelerator pedal is fully depressed. |
| Accelerator pedal fully actuated | 100% | ||
| APP Sensor 1 and 2 | Agree | This parameter displays the results of a control module test that compares the signals from the APP sensors 1 and 2. The scan tool will display Agree or Disagree. Agree indicates that APP sensor 1 and APP sensor 2 voltages correspond to the same accelerator pedal position. Disagree indicates that APP sensor 1 and APP sensor 2 voltages correspond to different accelerator pedal positions. | |
| BARO | Varies with altitude | This parameter displays the barometric pressure as calculated by the control module using the signal from the MAP sensor measured when the ignition is turned ON with the engine not running. The control module will update the barometric pressure during wide-open throttle (WOT) conditions. | |
| BPP Signal | Released | This parameter displays the state of the brake pedal position switch as determined by the brake pedal switch. The scan tool will display Applied when the brake pedal is depressed, and Released when the brake pedal is not depressed. | |
| BPP Circuit Signal | Released | The BCM uses the Brake Pedal Position sensor as an indication that the brake pedal is applied or released. | |
| Catalytic Converter Protection Active | No | This parameter indicates the status of the control module control for catalytic converter protection. The scan tool will indicate YES if the control module is adjusting fuel and ignition quantity and timing to protect the catalytic converter from damage. The scan tool will indicate NO if the control module is in a normal fuel and ignition control mode. | |
| Calc. TWC Temp. | Varies | This parameter displays the catalytic converter temperature as calculated by the control module. | |
| Calc. TWC Temp. Bank 1 and Bank 2 | Varies | This parameter displays the catalytic converter temperature as calculated by the control module. | |
| Change Engine Oil Indicator Command | No | This parameter displays the state of the change engine oil lamp control circuit as commanded by the control module. | |
| CKP Resync Counter | Varies | This parameter displays the number of times the control module has to synchronize the CKP sensor. | |
| CKP Sensor | Engine Idle Speed | This parameter displays the engine speed as calculated by the control module using the signal from the CKP sensor. | |
| CKP Active Counter | Incrementing | This parameter displays an incrementing counter when the control module receives a signal from the crankshaft position (CKP) sensor. | |
| Cmmd. A/F Equivalence Ratio | 1 | Equivalence numbers greater than one represent excess fuel in the fuel air mix. Equivalence numbers less than one represent a deficiency of fuel in the fuel air mix for complete combustion. The equivalence ratio will be reported as one when the vehicle is in Closed Loop. | |
| CMP Sensor | Engine Idle Speed | This parameter displays the engine speed as calculated by the control module using the signal from the CMP sensor. | |
| Cold Startup | Varies | This parameter displays whether the engine meets the conditions for a cold startup during the present ignition cycle. The scan tool displays Yes when the conditions for a cold startup are met during this ignition cycle. The scan tool displays No when the conditions for a cold startup are not met during the present ignition cycle. Conditions for a cold startup require the coolant temperature and the intake air temperature to be below a predetermined temperature and within a certain range of each other. These conditions must occur after the engine was warmed up to a specific temperature during the previous ignition cycle. | |
| Crank Request Signal | No | This parameter displays the state of the crank request input to the control module from the ignition switch. The scan tool will display Yes when the ignition switch is in the Crank position. The scan tool will display No when the ignition switch is in any other position. | |
| Cruise Control Active | Inactive | This parameter displays the status of the cruise control system as determined by the control module. The scan tool will display Yes when the cruise control system is in control of vehicle speed. The scan tool will display No when the cruise control system is not operating. | |
| Cruise Disengage 1-8 History | Cruise ON | None | The Scan tool displays the last 8 cruise control disengages in order from 1 to 8. There are 20 possible causes for the cruise control to disengage. |
| Cruise ON/OFF Switch | ON | This parameter displays the state of the ON/OFF switch input to the control module. The scan tool will display ON when the cruise ON/OFF switch is ON. The scan tool will display OFF when the cruise ON/OFF switch is OFF. | |
| Cruise Resume/Accel Switch | Invalid | This parameter displays the state of the Resume/Accel switch input to the control module When the cruise control switch is in the ON position and the Resume/Accel switch is activated, the scan tool displays ON. When the Resume/Accel switch is released the scan tool displays OFF. | |
| Cruise Set/Coast Switch | Invalid | This parameter displays the state of the Set/Coast switch input to the control module from the cruise control system. When the cruise control switch is in the ON position and the Set/Coast switch is activated, the scan tool displays ON. When the Set/Coast switch is released the scan tool displays OFF. | |
| Cruise Control Cancel Switch | Off | This parameter displays the status of the cruise control cancel switch as determined by the control module. The scan tool will display On when the cruise control cancel switch is on. The scan tool will display Off when the cruise control cancel switch is off. | |
| Cycles of Misfire Data | Incrementing 0-100 | This parameter displays the number of cylinder firing events recorded by the control module | |
| Cyl. 1-8 IC Ckt Short Gnd Test Status | OK | This parameter displays the status of the output driver for the ignition control circuits. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Cyl. 1-8 IC Ckt Open Test Status | OK | This parameter displays the status of the output driver for the ignition control circuits. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Cyl. 1-8 IC Ckt Short Volts Test Status | OK | This parameter displays the status of the output driver for the ignition control circuits. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Cyl. 1-8 Inj. Ckt Short Gnd Test Status | OK | This parameter displays the status of the output driver for the ignition control circuits. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Cyl. 1-8 Inj. Ckt Open Test Status | OK | This parameter displays the status of the output driver for the ignition control circuits. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Cyl. 1-8 Inj. Ckt Short Volts Test Status | OK | This parameter displays the status of the output driver for the ignition control circuits. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Decel. Fuel Cut-off | Inactive | This parameter displays the status of the operating mode used to turn OFF the fuel injectors during certain deceleration conditions. When the scan tool displays Active, the control module has turned OFF the fuel injectors. When the scan tool displays Inactive, the fuel system is operating normally. | |
| Desired EGR Position | 0% | This parameter displays the position of the exhaust gas recirculation (EGR) valve commanded by the control module. The scan tool will display 0 percent when the control module is commanding the EGR valve closed. The scan tool will display a higher percentage when the EGR valve is commanded open. | |
| Desired Exh CMP Bank 1 or 2 | Varies in Degrees | This parameter displays the desired exhaust camshaft position for Bank 1 or 2, as determined by the control module. The scan tool will display a higher value for more advanced exhaust valve timing, such as at high load or speed conditions. The scan tool will display a lower value for a less advanced exhaust valve timing, such as at idle. | |
| Desired Idle Speed | 650-700 | This parameter displays the engine idle speed in RPM as commanded by the control module. The control module compensates for various engine loads in order to maintain the desired engine speed at idle. This parameter is not valid unless the engine is running | |
| Desired Int. CMP Bank 1 or 2 | Varies in Degrees | This parameter displays the desired exhaust camshaft position for Bank 1 or 2, as determined by the control module. The scan tool will display a higher value for more advanced intake valve timing, such as at high load or speed conditions. The scan tool will display a lower value for a less advanced intake valve timing, such as at idle. | |
| Distance Since DTC Cleared | Varies | This parameter displays the distance accumulated since an emission diagnostic trouble code was cleared. The scan tool will display increasing distance as the vehicle is driven. | |
| Distance Since First Failure | Varies | This parameter displays the distance accumulated when the emission diagnostic trouble code first failed. | |
| Distance Since Last Failure | Varies | This parameter displays the distance accumulated when the emission diagnostic trouble code last failed. | |
| Drag Control Status | Inactive | Drop Throttle Control Mode is active when the Requested Torque Signal indicates greater than 90 percent duty cycle while the Traction Control System Data Control Signal input is active. | |
| Drop Throttle Status | Inactive | Drop Throttle Control Mode is active when the Requested Torque Signal indicates greater than 90 percent duty cycle while the Traction Control System Data Control Signal input is active. | |
| EC Ignition Relay Ckt Short Gnd Test Status | Not Run | This parameter displays the status of the output driver for the engine control (EC) Ignition Relay control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| EC Ignition Relay Ckt Open Test Status | Not Run | This parameter displays the status of the output driver for the engine control (EC) Ignition Relay control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| EC Ignition Relay Ckt Short Volts Test Status | OK | This parameter displays the status of the output driver for the engine control (EC) Ignition Relay control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| EC Ignition Relay Command | ON | This parameter displays the commanded state of the EC Ignition relay control circuit. The scan tool will display ON or OFF. ON indicates the EC ignition relay control circuit is being grounded by the control module, allowing voltage to other control module circuits and systems. OFF indicates the EC ignition relay is not being commanded ON by the control module. | |
| EC Ignition Relay Feedback Signal | Battery Voltage | This parameter displays the voltage signal sent to the control module from the engine control ignition relay. The scan tool will display battery voltage when the engine is running. The scan tool will display no voltage when the relay is OFF. | |
| ECM Authentication Status | Valid | This parameter indicates the result of the comparison between the last received immobilizer system response and the expected response calculated by the ECM. | |
| ECM Challenge Status | Invalid | This parameter shows the immobilizer system status of the ECM challenge. This indicates whether the currently calculated ECM challenge is valid. | |
| ECM Response Source | Normal | The parameter indicates the source used to calculate the ECM response. The sources include Normal Start, Remote Vehicle Start, PTO Remote Start. | |
| ECT Sensor | 85-105°C (185-220°F) | This parameter displays the temperature of the engine coolant based on the input from the engine coolant temperature (ECT) sensor. When the coolant temperature is low, the scan tool will display a low temperature. When the coolant temperature is high, the scan tool will display a high temperature. | |
| Engine Load | 25-30% | This parameter displays the engine load in percent based on inputs to the control module from various engine sensors. The scan tool will display a low percentage when the engine is at idle with little or no load. The scan tool will display a high percentage when the engine is running at a high RPM under a heavy load. | |
| Engine OFF Time | Varies | This parameter displays the time elapsed since the engine turned OFF. The scan tool will display the time in hours, minutes and seconds. The engine OFF time will reset to zero when the engine starts. | |
| Engine Oil Level Switch | OK | This parameter displays the status of the engine oil level switch as determined by the control module. The control module uses this information to turn ON the low engine oil lamp if the engine oil level remains approximately 1 quart low for a sufficient amount of time. The scan tool will display Low when the engine oil level is low. The scan tool will display OK when the engine oil level is correct. | |
| Engine Oil Life Remaining | Varies | This parameter displays the amount engine oil life remaining before requiring an oil change based on calculations by the control module. The scan tool will display lower values as the engine oil life approaches 0 miles. | |
| Engine Oil Pressure Switch | OK | This parameter displays the state of the EOP as determined by the control module. The control module monitors the EOP switch to determine if the EOP is sufficient. The scan tool will display low when the EOP is below a predetermined value. | |
| Engine Oil Temperature Calculated | Varies °C/°F | This parameter displays the temperature of the engine oil as calculated by the control module using various sensor inputs. The engine oil temperature calculated has a range of values indicating a low value when the oil temperature is low to a high value when the oil temperature is high. | |
| Engine Run Time | Varies | This parameter displays the time elapsed since the engine was started. The scan tool will display the time in hours, minutes and seconds. The engine run time will reset to zero when the engine stops running. | |
| Engine Speed | 650 RPM | This parameter displays the speed of the crankshaft as determined by the control module using an input from the CKP sensor. The scan tool will display a high value at high engine speeds and a low value at low engine speeds. | |
| EPM Inhibit Reason | None | This parameter displays the reason for the regulated voltage control (RVC) override command. RVC lowers system operating voltage to reduce the system electrical load and improve fuel economy performance. The RVC command will be overridden if the voltage commanded is below the minimum system voltage required to ensure that the fuel demand, powertrain OBD diagnostics, airflow measurement, cylinder deactivation, or transmission control module functions will execute properly. Reasons include the following: None, Device Control, Fuel Demand, OBD Diagnostics, Airflow Measurement, Cylinder Deactivation, Transmission Control Module Request. | |
| EVAP Fault History | No Fault | This parameter displays the result of the evaporative emission (EVAP) system diagnostic as determined by the control module. The scan tool will display various messages, depending on the result of the test. | |
| EVAP Purge Solenoid Command | 15% | This parameter displays the on-time or duty cycle of the EVAP purge solenoid commanded by the control module expressed as a percent. The scan tool will display a high percentage when the control module is commanding the EVAP purge solenoid to be open a large amount. The scan tool will display a low percentage when the control module is commanding the EVAP purge solenoid to be open a small amount. The scan tool will display 0 when the control module is commanding the EVAP purge solenoid closed. | |
| EVAP Purge Solenoid Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the evaporative emission purge solenoid control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| EVAP Purge Solenoid Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the evaporative emission purge solenoid control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| EVAP Purge Solenoid Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the output driver for the evaporative emission purge solenoid control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| EVAP Vent Solenoid Command | Venting | This parameter displays the state of the EVAP vent solenoid commanded by the control module. The scan tool will display venting when the control module is commanding the EVAP vent solenoid to be open. The scan tool will display a not venting when the control module is commanding the EVAP vent solenoid to be closed. | |
| EVAP Vent Solenoid Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the evaporative emission vent solenoid control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| EVAP Vent Solenoid Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the evaporative emission vent solenoid control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| EVAP Vent Solenoid Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the output driver for the evaporative emission vent solenoid control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Exh CMP Angle Bank 1 or 2 | 0 Degrees | This parameter displays the actual exhaust camshaft position in degrees. | |
| Exh CMP Bank 1 or 2 Command | 0 Degrees | This parameter displays the degrees of advanced exhaust camshaft angle related to crankshaft position as commanded by the control module. The scan tool will display a higher value for a more advanced exhaust camshaft position. The scan tool will display a lower value when the exhaust camshaft is not being advanced, such as at idle. | |
| Exh CMP Bank 1 or 2 Variance | 0 Degrees | This parameter displays in degrees, the difference between the desired exhaust camshaft position and the actual exhaust camshaft position. | |
| Exh CMP Bank 1 or Bank 2 Active Counter | Varies in Counts | This parameter displays an incrementing counter when the control module receives a signal from the exhaust camshaft position (CMP) sensor. | |
| Exh CMP Sol Bn 1 Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the output driver for the Exh CMP solenoid Bn 1 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Exh CMP Sol Bn 1 Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the Exh CMP solenoid Bn 1 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Exh CMP Sol Bn 1 Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the Exh CMP solenoid Bn 1 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Exh CMP Sol Bn 2 Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the output driver for the Exh CMP solenoid Bn 2 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Exh CMP Sol Bn 2 Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the Exh CMP solenoid Bn 2 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Exh CMP Sol Bn 2 Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the Exh CMP solenoid Bn 2 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Ext. Travel BPP Signal | Released | This parameter will display the state of the brake pedal, applied or released. | |
| Fail Counter | Varies Counts | This parameter displays the number of times a specific diagnostic has run and failed. | |
| FC Relay 1 Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the cooling fan relay 1 control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| FC Relay 1 Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the cooling fan relay 1 control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| FC Relay 1 Ckt Short Volts Test Status | Not Run | This parameter displays the diagnostic state of the output driver for the cooling fan relay 1 control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| FC Relay 1 Command | Varies ON/OFF | This parameter displays the commanded state of the cooling fan relay 1 control circuit. The cooling fan relay 1 should be ON when the scan tool indicates the FC relay 1 command is ON. The cooling fan relay 1 should be OFF when the scan tool indicates the FC Relay 1 Command is OFF. | |
| FC Relays 2 and 3 Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the cooling fan relays 2 and 3 control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| FC Relays 2 and 3 Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the cooling fan relays 2 and 3 control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| FC Relays 2 and 3 Ckt Short Volts Test Status | Not Run | This parameter displays the diagnostic state of the output driver for the cooling fan relays 2 and 3 control circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| FC Relays 2 and 3 Command | Varies ON/OFF | This parameter displays the commanded state of the cooling fan relays 2 and 3 control circuit. The cooling fan relays 2 and 3 should be ON when the scan tool indicates the FC Relay 2 and 3 command is ON. The cooling fan relays 2 and 3 should be OFF when the scan tool indicates the FC Relay 2 and 3 command is OFF. | |
| Fuel Level Sensor | Varies | This parameter displays the voltage from the sensor used to monitor the fuel level inside the fuel tank. The scan tool will display a high voltage reading when that the fuel level in the tank is low or near empty. The scan tool will display a low voltage reading when the fuel level in the tank is high or near full. | |
| Fuel Level Sensor Left or Right Tank | 0-5 Volts | This parameter displays the voltage signal received by the control module from the fuel level sensors. | |
| Fuel Pump Relay Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the Fuel Pump Relay circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Fuel Pump Relay Ckt Open Test Status | OK | This parameter displays the diagnostic state of the Fuel Pump Relay circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Fuel Pump Relay Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the Fuel Pump Relay circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Fuel Pump Relay Command | ON | This parameter displays the commanded state of the Fuel Pump Relay control circuit. The fuel pump relay should be ON when the scan tool indicates the Fuel Pump Relay command is ON. The fuel pump relay should be OFF when the scan tool indicates the Fuel Pump Relay Command is OFF. | |
| Fuel Pump Relay Circuit Status | OK/Incomplete | This parameter displays the diagnostic state of the output driver for the Fuel Pump Relay control circuit. The scan tool will display OK if the circuit is operating correctly. The scan tool will display the appropriate fault if there is an open, short to ground or a short to voltage on the circuit. | |
| Fuel Tank Level Remaining | Varies | This parameter displays the amount of fuel remaining in the fuel tank as measured in percentage. The control module determines the amount of fuel remaining in the tank by using information from the fuel level sensors. The scan tool will display a higher value with a full fuel tank, and a lower value with an empty fuel tank. | |
| Fuel Tank Pressure Sensor | 1.5 Volts | This parameter displays the voltage signal sent to the control module from the sensor used to monitor the pressure inside the fuel tank. The scan tool will display a low voltage when the pressure in the fuel tank is high. The scan tool will display a high voltage when the pressure in the fuel tank is low or in a vacuum. | |
| Fuel Tank Pressure Sensor | 0 inches H2O (0 mm Hg) | This parameter displays the fuel tank pressure as calculated based on a signal sent to the control module from the fuel tank pressure (FTP) sensor. The scan tool will display a low value when the pressure in the fuel tank is low or a vacuum. The scan tool will display a high value when the pressure in the fuel tank is high. | |
| Fuel Tank Rated Capacity | 17.5-20 gals (66.24-75.7 liter) | This parameter displays the rated maximum quantity of fuel the fuel tank will hold. This is calibrated in the control module to match the vehicle. See Owner's Manual-Capacities and Specifications. | |
| Fuel Trim Cell | Varies | This parameter displays the fuel trim cell number as calculated by the control module based on engine speed and load inputs. The scan tool will display a lower number as conditions are nearer to idle, and a higher value as conditions approach maximum engine speed and maximum load. | |
| Fuel Trim Learn | Enabled | This parameter indicated if the control module is adjusting long term fuel trim in response to the short term fuel trim. The scan tool displays Enabled or Disabled. When conditions are appropriate for enabling long term fuel trim corrections, the scan tool displays Enabled. | |
| Fuel Trim System Test State | Monitoring | This parameter indicates the status of the Fuel Trim System Test. The scan tool will display Disabled, Enabled, Monitoring, or Run Purge Test. | |
| Fuel Volatility | Varies | This parameter indicates the rate the fuel can be vaporized in the cylinder as calculated by the control module. The scan tool displays Low, Moderate, or High. The scan tool will display HIGH when the fuel volatility is high. The scan tool will display LOW when the fuel volatility is low. | |
| GEN F-Terminal Signal | 0-100% | This parameter indicates the generator field duty cycle as commanded by the voltage regulator or control module. The scan tool will display a higher value for a higher commanded generator output, and a lower value for a lower commanded generator output. | |
| GEN L-Terminal Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the Gen- L Terminal circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| GEN L-Terminal Ckt Open Test Status | OK | This parameter displays the diagnostic state of the Gen- L Terminal circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| GEN L-Terminal Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the Gen- L Terminal circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| GEN L-Terminal Command | 0-100% | This parameter displays the control modules commanded state of the voltage regulator on the generator. | |
| HO2S Bank 1 or 2 Sensor 1 | 80-850 mV | This parameter indicates the heated oxygen sensor (HO2S) bank 1 or bank 2, sensor 1 output voltage as measured by the control module. The scan tool value fluctuates constantly while operating in Closed Loop. The scan tool will display a higher value during rich running conditions, and a lower value during leaner running conditions. | |
| HO2S Bank 1 or 2 Sensor 1 Heater | 0.60-0.80 amps | This parameter displays the current through the control module when the bank 1 or bank 2, sensor 1 HO2S heater is commanded ON by the control module. HO2S Heater Bank 1 Sen. 1 is a range of values indicating a low current when the heater circuit resistance is high to a high current when the heater circuit resistance is low. | |
| HO2S Bn 1 or 2 Sen 1 Heater Ckt Short Gnd Test Status | OK | This parameter displays the status of the output driver for the HO2S Heater Bank 1 or Bank 2 Senor 1. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| HO2S Bn 1 or 2 Sen 1 Heater Ckt Open Test Status | OK | This parameter displays the status of the output driver for the HO2S Heater Bank 1 or Bank 2 Senor 1. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| HO2S Bn 1 or 2 Sen 1 Heater Ckt Short Volts Test Status | OK | This parameter displays the status of the output driver for the HO2S Heater Bank 1 or Bank 2 Senor 1. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| HO2S Bn 1 or 2 Sen 1 Heater Command | 0-99% | This parameter displays the commanded state of the Bank 1 or Bank 2 Sensor 1 heater by the control module. The scan tool will display a higher value as the heater command is increased, and a lower value if the heater is not commanded ON. | |
| HO2S Bn 1 or 2 Sen 1 Heater Command | ON | This parameter displays the commanded state of the Bank 1 or Bank 2 Sensor 1 heater by the control module. The scan tool will display ON when the heater is commanded ON. The scan tool will display OFF when the heater is commanded OFF. | |
| HO2S Bank 1 or 2 Sensor 2 | 80-850 mV | This parameter indicates the heated oxygen sensor (HO2S) bank 1 sensor 2 output voltage as measured by the control module. The scan tool value fluctuates constantly while operating in Closed Loop. The scan tool will display a higher value during rich running conditions, and a lower value during leaner running conditions. | |
| HO2S Bank 1 or 2 Sensor 2 Heater | 0.60-0.80 amps | This parameter displays the current through the control module when the bank 1 sensor 2 HO2S heater is commanded ON by the control module. HO2S Heater Bank 1 Sensor 2 is a range of values indicating a low current when the heater circuit resistance is high to a high current when the heater circuit resistance is low. | |
| HO2S Bn 1 Sen 2 Heater Ckt Short Gnd Test Status | OK | This parameter displays the status of the output driver for the HO2S Heater Bank 1 Sen. 2. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| HO2S Bn 1 Sen 2 Heater Ckt Open Test Status | OK | This parameter displays the status of the output driver for the HO2S Heater Bank 1 Sen. 2. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| HO2S Bn 1 Sen 2 Heater Ckt Short Volts Test Status | OK | This parameter displays the status of the output driver for the HO2S Heater Bank 1 Sen. 2. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| HO2S Bn 1 or 2 Sen 2 Heater Command | 0-99% | This parameter displays the commanded state of the Bank 1 Sensor 2 heater by the control module. The scan tool will display a higher value as the heater command is increased, and a lower value if the heater is not commanded ON. | |
| HO2S Bn 1 or 2 Sen 2 Heater Command | ON | This parameter displays the commanded state of the Bank 1 Sensor 2 heater by the control module. The scan tool will display ON when the heater is commanded ON. The scan tool will display OFF when the heater is commanded OFF. | |
| Hot Open Loop | Inactive | This parameter indicates the status of the fuel delivery system. The scan tool will display Active if the fuel system is running in open loop due to a temperature concern. The scan tool will display Inactive if the fuel system is operating normally. | |
| IAT Sensor | Varies | This parameter displays the temperature of the air entering the engine as calculated by the control module based on the input from the intake air temperature (IAT) sensor. The scan tool will display a low value when the air temperature is low, and a high value when the air temperature is high. | |
| IAT Sensor 2 | Varies | This parameter displays the temperature of the air entering the engine as calculated by the control module based on the input from the IAT sensor 2. The scan tool will display a low value when the air temperature is low, and a high value when the air temperature is high. | |
| Ignition Accessory Signal | OFF | This parameter displays the state of the ignition 0 input to the control module from the ignition switch. The scan tool will display ON when the ignition switch is in the ignition accessory position. The scan tool will display OFF when the ignition switch is in any other position. | |
| Ignition 1 Signal | Battery Voltage | This parameter displays the voltage measured at the ignition 1 circuit of the control module. Voltage is applied to the control module when the ignition switch is in the ignition 1 position. The scan tool will display a low value when the voltage is low. The scan tool will display a high value, such as battery voltage, when the voltage is higher. | |
| Ignition OFF Time | Varies | This parameter displays the time elapsed since the ignition was last turned OFF. The scan tool will display the time in hours, minutes and seconds. The ignition OFF time will reset to zero when the ignition is turned ON. | |
| Injector PWM Bank 1 or Bank 2 | 2.0-5.4 ms | This parameter indicates the average commanded ON time for each injector on Bank 1 or Bank 2 by the control module. The scan tool will display a larger value for a longer injector commanded ON time, causing more fuel to be delivered to the cylinders. The scan tool will display a smaller value for a shorter injector commanded ON time, causing less fuel to be delivered to the cylinders. | |
| Injector 1-8 Disabled Due To Misfire | No | This parameter displays the status of the fuel injector driver by the control module. The scan tool will display YES if the fuel injector is being disabled due to a misfire detection. The scan tool will display NO if the fuel injector is not being disabled by the control module due to a misfire. | |
| Int. CMP Angle Bank 1 or 2 | 0 Degrees | This parameter displays the degrees of advanced intake camshaft angle related to crankshaft position as determined by the control module based on input from the intake CMP sensors. The scan tool will display a higher value for a more advanced intake camshaft position. The scan tool will display a lower value when the intake camshaft is not being advanced, such as at idle. | |
| Int. CMP Bank 1 or 2 Command | 0 Degrees | This parameter displays the degrees of advanced intake camshaft angle related to crankshaft position as commanded by the control module. The scan tool will display a higher value for a more advanced intake camshaft position. The scan tool will display a lower value when the intake camshaft is not being advanced, such as at idle. | |
| Int. CMP Bank 1 or 2 Variance | 0 Degrees | This parameter indicates the difference between the actual camshaft angle and the commanded camshaft angle as determined by the control module. The scan tool will display a higher value for larger differences, or a lower value if there is only a small difference. | |
| Int. CMP Bank 1 or 2 Active Counter | Varies in Counts | This parameter displays an incrementing counter when the control module receives a signal from the intake camshaft position (CMP) sensor. | |
| Int CMP Sol Bn 1 Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the output driver for the Int CMP solenoid Bn 1 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Int CMP Sol Bn 1 Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the Int CMP solenoid Bn 1 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Int CMP Sol Bn 1 Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the Int CMP solenoid Bn 1 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Int CMP Sol Bn 2 Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the output driver for the Int CMP solenoid Bn 2 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Int CMP Sol Bn 2 Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the Int CMP solenoid Bn 2 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Int CMP Sol Bn 2 Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the Int CMP solenoid Bn 2 control circuit as determined by the control module. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Intake Manifold Pressure | 70-75 kPa | This parameter displays the pressure difference between the MAP and the barometric pressure (BARO) as calculated by the control module. The scan tool will display a higher value during high vacuum conditions, such as idle or deceleration. The scan tool will display a lower value during low vacuum conditions, such as wide open throttle or low load cruising. | |
| Knock Detected Cyl. 1-8 | NO | This parameter displays the status of each cylinder for knock detection by the control module. The scan tool will display YES if a knock condition has been detected related to that cylinder combustion event. The scan tool will display NO if there is no knock condition detected related to that cylinder combustion event. | |
| Knock Retard | 0 | This parameter indicates the amount of spark advance the control module removes from the ignition control (IC) spark advance in response to the signal from the knock sensors. The scan tool displays a high value for a large amount of spark retard, and a low value for a small amount of spark retard. | |
| Long Term FT Bank 1 or Bank 2 | 0% ± 10% | This parameter is calculated by the control module based on the Short Term FT value. The Long Term FT bank 1 is used for the long term correction of the fuel delivery in bank or bank 2. The scan tool will a high value for a large amount of long term fuel correction, and 0 percent for no long term fuel trim correction. The scan tool will display a negative value when fuel system is running too rich and fuel is being removed from the combustion event. The scan tool will display a positive value if the fuel system is running lean and fuel is being added to the combustion event. | |
| LT FT Test Avg. Bank 1 or Bank 2 | 1% | This parameter is calculated by the control module based on an intrusive test by the control module. The Long Term FT test average used for the long term correction of the fuel delivery in each bank. The scan tool will a high value for a large amount of long term fuel correction, and 0 percent for no long term fuel trim correction. The scan tool will display a negative value when fuel system is running too rich and fuel is being removed from the combustion event. The scan tool will display a positive value if the fuel system is running lean and fuel is being added to the combustion event. | |
| LT FT Avg. Bank 1 or Bank 2 w/o Purge | 1% | This parameter is calculated by the control module based on the Short Term FT value. The Long Term FT bank 1 is used for the long term correction of the fuel delivery in bank 1. The scan tool will display a high value for a large amount of long term fuel correction, and 0 percent for no long term fuel trim correction. The scan tool will display a negative value when fuel system is running too rich and fuel is being removed from the combustion event. The scan tool will display a positive value if the fuel system is running lean and fuel is being added to the combustion event. | |
| Loop Status | Closed | This parameter displays the state of the fuel control system as commanded by the control module. Closed Loop operation indicates that the control module is controlling the fuel delivery based off the oxygen sensors input signal. In Open Loop operation the control module ignores the oxygen sensor input signal and bases the amount of fuel to be delivered on other sensor inputs. | |
| Low EOP Indicator Command | OFF | This parameter displays the commanded state of the low oil lamp control circuit. The low oil lamp should be ON when the scan tool indicates the Low Oil Lamp Command is ON. The low oil lamp should be OFF when the scan tool indicates the Low Oil Lamp Command is OFF. The scan tool displays ON/OFF The scan tool displays ON or OFF. The scan tool displays ON when the ECM detects that there is a low oil level condition. The low oil lamp is then commanded ON by the ECM. Scan tool displays ON or OFF. Represents the commanded state of the Low Oil Lamp indicator control circuit. | |
| MAF Performance Test | OK | This parameter displays the status of the mass air flow (MAF) performance test by the control module. The scan tool will display OK if no fault is found. The scan tool will display Fault if the control module detects a fault during the test. | |
| MAF Sensor | Engine Idling | 3.4-6.5 g/s | This parameter indicates the quantity calculated by the control module based on a signal from the MAF sensor. The scan tool will display a high value at high engine speeds, and a low value at low engine speeds. |
| Engine speed at 2,500 RPM | 11.88 g/s | ||
| MAF Sensor | 1510-3224 Hz | This parameter indicates the frequency signal received from the MAF sensor by the control module. The scan tool will display a high value at high engine speeds, and a low value at low engine speeds. | |
| MAP Performance Test 1 | OK | This parameter displays the status of the MAP performance test 1 by the control module. The scan tool will display OK if no fault is found. The scan tool will display Fault if the control module detects a fault during the test. | |
| MAP Performance Test 2 | OK | This parameter displays the status of the MAP performance test 2 by the control module. The scan tool will display OK if no fault is found. The scan tool will display Fault if the control module detects a fault during the test. | |
| MAP Sensor | 30-38 kPa | This parameter indicates the manifold absolute pressure inside the engine as calculated by the control module based on the signal from the MAP sensor. The scan tool will display a higher value wide open throttle, and a lower value at idle. | |
| MAP Sensor | 0.75-1.40 Volts | This parameter indicates the voltage signal received by the control module from the MAP sensor. The scan tool displays a low voltage at idle, and a high voltage at wide open throttle. Barometric pressure and altitude can effect these values. | |
| MIL Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the malfunction indicator lamp control (MIL) circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| MIL Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the malfunction indicator lamp control (MIL) circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| MIL Ckt Short Volts Test Status | Not Run | This parameter displays the diagnostic state of the output driver for the malfunction indicator lamp control (MIL) circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| MIL Command | OFF | This parameter displays the commanded state of the MIL control circuit. The MIL should be ON when the scan tool indicates the MIL Command is ON. The malfunction indicator lamp should be OFF when the scan tool indicates the MIL Command is OFF. The control module will command the MIL ON when the ignition is ON with the engine OFF in order to perform a bulb check. | |
| MIL Requested by DTC | NO | This parameter indicates the reason the control module illuminated the MIL. The scan tool will display YES when the MIL is requested as a result of an A or B type DTC. The scan tool will display NO if the MIL is illuminated for another reason, such as transmission DTCs. | |
| Misfire Current Cyl. 1-8 | 0 | This parameter displays the number of possible misfires during the last 200 cylinder firing events detected on Cylinders 1-8 as calculated by the control module. The misfires are calculated based on engine crankshaft rotation speed variations. The scan tool displays an incrementing counter. This counter should display some activity, but the activity should be the same for all cylinders. | |
| Misfire History Cyl. 1-8 | 0 | This parameter displays the number of possible misfires that have occurred after 195 current misfires have been counted on Cylinders 1-8 as calculated by the control module. The misfires are calculated based on engine crankshaft rotation speed variations. The scan tool displays an incrementing counter. This counter should display some activity, but the activity should be the same for all cylinders. | |
| Not Run Counter | Varies | This parameter displays the number of ignition cycles that a DTC has not run. The scan tool display will increment as the number of ignition cycles increase without a DTC pass or Fail. | |
| Pass Counter | Counts | The scan tool displays the number of times a DTC has run and passed. | |
| PNP Switch | P/N | This parameter indicates the range selection of the automatic transmission as calculated by the control module based on input from the PNP switch. The scan tool will display, In Gear, Park, or Neutral depending on the PNP switch position. | |
| Power Enrichment | Inactive | This parameter indicates if the control module has detected conditions appropriate to operate in Power Enrichment mode. The scan tool will display Active if the mode is in operation, and Inactive if the mode is not in operation. The control module enters Open Loop operation and increases injector pulse width when in power enrichment mode. | |
| Reduced Engine Power | Inactive | This parameter indicates if the control module has detected that a TAC system fault has occurred. The scan tool will display Active if the mode is in operation, and Inactive if the mode is not in operation. The control module limits engine power when this mode is Active. | |
| Reverse Inhibit Command | OFF | This parameter displays the commanded state of the reverse inhibit solenoid control circuit. The reverse inhibit solenoid should be ON when the scan tool indicates the Reverse Inhibit Solenoid Command is ON. The reverse inhibit solenoid should be OFF when the scan tool indicates the Reverse Inhibit Solenoid Command is OFF. | |
| Reverse Inhibit Solenoid Command | OFF | This parameter displays the commanded state of the reverse inhibit solenoid control circuit. The reverse inhibit solenoid should be ON when the scan tool indicates the Reverse Inhibit Solenoid Command is ON. The reverse inhibit solenoid should be OFF when the scan tool indicates the Reverse Inhibit Solenoid Command is OFF. | |
| Rev. Inhibit Solenoid Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the output driver for the Reverse Inhibit Solenoid circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Rev. Inhibit Solenoid Ckt Open Test Status | OK | This parameter displays the diagnostic state of the output driver for the Reverse Inhibit Solenoid circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Rev. Inhibit Solenoid Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the output driver for the Reverse Inhibit Solenoid circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| RVS Disable 1-8 History | None | This parameter displays one of the last eight reasons that powertrain has disabled remote vehicle start (RVS). | |
| RVS Request Signal | ON/OFF | This parameter indicates the state of the request received over serial communication from the remote vehicle start (RVS) system to start the vehicle in remote mode. | |
| Short Term FT Bank 1 or Bank 2 | 0% ± 10% | This parameter displays the short term correction to fuel delivery for bank 1 or bank 2 by the control module in response to the amount of time the oxygen sensor voltage spends above or below the 450 mV threshold. The scan tool will display 0 percent if no adjustments are required. The scan tool will display a higher positive value if fuel has to be added, and a higher negative value if fuel has to be removed. | |
| Spark | 9-11° | This parameter displays the spark timing being commanded by the control module ON the IC circuit. The scan tool will display a negative value if the spark timing is before top dead center (BTDC) or spark advance; the scan tool will display a positive value if the spark timing is after top dead center (ATDC) or spark retard. Because the ignition control module sets spark advance at a fixed value BTDC while operating in bypass mode, the displayed spark advance only reflects true spark timing when the PCM has commanded IC mode. | |
| Start Up ECT | Varies | This parameter Indicates the engine coolant temperature at engine start up as calculated by the control module based on the signal from the ECT sensor. The scan tool will display a higher value on a warmer engine, and a lower value on a colder engine. | |
| Start Up IAT | Varies | This parameter Indicates the intake air temperature at engine start up as calculated by the control module based on the signal from the IAT sensor. The scan tool will display a higher value during warmer under hood temperatures, and a lower value during colder under hood temperatures. | |
| ST FT Test Avg. Bank 1 or Bank 2 | 1% | This parameter is calculated by the control module based on an intrusive test by the control module. The Short Term FT Test Average used for the short term correction of the fuel delivery in each bank. The scan tool will display a high value for a large amount of short term fuel correction, and 0% for no short term fuel trim correction. The scan tool will display a negative value when fuel system is running too rich and fuel is being removed from the combustion event. The scan tool will display a positive value if the fuel system is running lean and fuel is being added to the combustion event. | |
| Starter Relay Ckt Short Gnd Test Status | OK | The scan tool displays OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Starter Relay Ckt Open Test Status | OK | The scan tool displays OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Starter Relay Ckt Short Volts Test Status | Not Run | The scan tool displays OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Starter Relay Command | OFF | The scan tool displays ON/OFF. The scan tool displays OFF until the ignition is placed into the CRANK position, then it reads ON. | |
| TAC Forced Engine Shutdown | NO | This parameter indicates the status of TAC control by the control module. The scan tool will display YES if the engine has been shut down due to a throttle control fault. The scan tool will display NO if the engine has not been shut down by a throttle control fault. | |
| TAC Motor | Enabled | This parameter indicates the status of the TAC motor driver by the ECM. The scan tool will display Enabled if TAC motor operation is allowed. The scan tool will display disabled if the TAC motor is disabled. | |
| TAC Motor Command | 15-25% | This parameter indicates the required duty cycle to maintain a desired throttle position. The scan tool will display a higher value if more effort is required to move the throttle to the desired position, such as physical resistance. The scan tool will display a lower value if less effort is required to move the throttle to the desired position. | |
| TCS and Drop Throttle Status | Inactive | TCS Active and Drop Throttle Control Mode is active when the Requested Torque Signal is within the TCS region, 40-90 percent duty cycle, while the Traction Control System Data Control Signal input is Active. | |
| TCS Torque Request Signal | 3 N.m (2 lbs ft) | This parameter indicates the percentage of available torque requested from the engine to the transmission as calculated by the control module. The scan tool will display a higher value for higher torque, and a lower value for lower torque. | |
| TCS Torque Request Signal | 100% | This parameter indicates the torque requested from the engine to the transmission as calculated by the control module. The scan tool will display a higher value for higher torque, and a lower value for lower torque. | |
| TCS Torque Delivered Signal | 1% | This parameter indicates the torque delivered from the engine to the transmission as calculated by the control module. The scan tool will display a higher value for higher torque, and a lower value for lower torque. | |
| TFT Sensor | Varies °C/°F | The scan tool displays °C (°F). This value represents the input signal of the transmission fluid temperature sensor. The scan tool range is -40 to +150°C (-40 to +302°F). This display indicates the temperature of the transmission fluid. Scan Tool Range -39 to +140°C (-38 to +284°F). The Trans Fluid Temp. sensor parameter displays the temperature of the manual transmission. | |
| Torque Management Spark Retard | 0° | This parameter indicates how much the ignition spark timing is being retarded to control torque by the control module. The scan tool will display a higher value under extreme torque control conditions such as spinning wheels. The scan tool will display a lower value under low torque control conditions such as light driving. | |
| Total Knock Retard | 0° | This parameter indicates how much ignition spark timing is being retarded due to all control systems monitored by the control module. The scan tool will display a high value during extreme conditions such as high temperatures and antilock braking. The scan tool will display a lower value during lighter driving conditions. | |
| Total Misfire | 0 | This parameter displays the number of possible misfires during the last 200 cylinder firing events detected on all cylinders as calculated by the control module. The misfires are calculated based on engine crankshaft rotation speed variations. The scan tool displays an incrementing counter. | |
| TP Desired Angle | 2-6% | This parameter indicates the desired throttle angle calculated by the TAC module as commanded by the vehicle operator. The scan tool will display a higher value when the accelerator pedal is depressed, and a lower value as the accelerator pedal is released. | |
| TP Indicated Angle | 2-6% | This parameter displays the angle of the throttle plate as calculated by the control module using the signals from the throttle position (TP) sensors. The TP indicated angle is a range of values indicating a low percentage when the throttle is closed to a high percentage when the throttle is wide open. | |
| TP Performance Test | OK | This parameter displays the status of the TP performance test by the control module. The scan tool will display OK if no fault is found. The scan tool will display Fault if the control module detects a fault during the test. | |
| TP Sensor 1 | 4.1-4.5 Volts | This parameter displays the voltage signal sent to the control module from TP sensor 1 of the throttle assembly. The TP sensor 1 is a range of values indicating a high voltage when the throttle is closed to a low voltage when the throttle plate is fully open. | |
| TP Sensor 1 Indicated Position | 2% | This parameter displays the angle of the throttle position (TP) sensor 1 as calculated by the control module using the signal from the TP sensor 1. The TP sensor 1 is a range of values indicating a low percentage when the throttle is closed to a high percentage when the throttle is fully open. | |
| TP Sensors 1 and 2 | Agree | This parameter displays the results of a control module test that compares the signals from the TP sensors 1 and 2. The scan tool will display Agree or Disagree. Agree indicates that TP sensor 1 and TP sensor 2 voltages correspond to the same throttle position. Disagree indicates that TP sensor 1 and TP sensor 2 voltages correspond to different throttle positions. | |
| TP Sensor 2 | 0.5-0.8 Volts | This parameter displays the voltage signal sent to the control module from TP sensor 2 of the throttle assembly. The TP sensor 2 is a range of values indicating a low voltage when the throttle is closed to a high voltage when the throttle plate is fully open. | |
| TP Sensor 2 Indicated Position | 2% | This parameter displays the angle of the TP sensor 2 as calculated by the control module using the signal from the TP sensor 2. The TP sensor 2 is a range of values indicating a low percentage when the throttle is closed to a high percentage when the throttle is fully open. | |
| Torque Delivered Signal | N.m (lbs ft) Varies | This parameter indicates the amount of available engine torque. Scan tool range 0-100 percent. Represents the PWM signal which indicates the percent of available torque the engine is delivering to the drive wheels. The EBTCM monitors the Traction Control Torque signal to ensure that the PCM is responding properly to the Traction Control Desired Torque signal. The scan tool displays -473 to +473 N.m/-349 to 349 lbs ft This is the calculated torque output from the engine to the transaxle used by the EBTCM for the traction control system operation. | |
| Traction Control Status | Inactive | This parameter indicates the status of the traction control system as reported by the control module. The scan tool will display ACTIVE if the traction control system is taking action to reduce drive wheel slippage. The scan tool will display INACTIVE if the traction control system is not being required to take action to reduce drive wheel slippage. | |
| Vehicle Speed Ckt Short Volts Test Status | OK | This parameter displays the diagnostic state of the Vehicle Speed Sensor circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Vehicle Speed Ckt Open Test Status | OK | This parameter displays the diagnostic state of the Vehicle Speed Sensor circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Vehicle Speed Ckt Short Gnd Test Status | OK | This parameter displays the diagnostic state of the Vehicle Speed Sensor circuit. The scan tool will display OK, Fault or Not Run. The scan tool will display OK if the circuit is operating correctly. | |
| Vehicle Speed Sensor | 0 km/mi | This parameter indicates the vehicle speed as calculated by the control module based on a signal from the vehicle speed sensor (VSS). The scan tool will display a higher value at higher vehicle speeds, and a lower value at lower vehicle speeds. | |
| VTD Auto. Learn Counter | Counts | The scan tool displays the count value when using the 30-minute reprogramming procedure. Three 10-minute cycles, or three counts, are required to complete the 30-minute auto learn reprogramming procedure. | |
| VTD Auto. Learn Timer | Inactive | This parameter indicates that either the auto learn timer (used in the auto learn procedure to enable VTD password learning) or the seed and key timer (used in the seed and key procedure to enable VTD password learning) is active. | |
| VTD Fuel Disable | Inactive | This parameter indicates the VTD system has disabled fuel. | |
| VTD Fuel Disable Until Ign. OFF | NO | This parameter indicates the VTD system has disabled fuel for the remainder of the ignition cycle. | |
| VTD Fuel Enabled | Yes | This parameter indicates the VTD system has enabled fuel. | |
| VTD Password Learn Enabled | No | The scan tool will display Yes when a valid theft password has been learned. | |
| VTD Password Learned | No | This indicates learning of the VTD password received from the platform electronics is enabled. VTD password learning is first enabled in assembly plant (prior to the manufacturer's enable counter being set to zero) may be re-enabled using 1 of 2 procedures. | |
| VTD Security Code Accepted | No | This parameter indicates that the received immobilizer system security code is correct. | |
| VTD Security Code Lockout | Inactive | This parameter displays Active or Inactive. Security Code Lockout Active indicates that the security code has not passed and lockout is active. | |
| VTD Security Code Programmed | No | This parameter indicates if the immobilizer system security code has been programmed. | |
| VTD Security Info. Programmed | Yes | This parameter indicates if the immobilizer secret information, e.g. powertrain pre-release password, powertrain secret key, has been programmed. | |
| VTD System Status | Dis. Neg. Resp. | This parameter indicates the current state of the immobilizer algorithm. The states include the following: Standby, Disabled at Startup, Disabled Due to No Response, Disabled Due to Negative Response, Disabled Due to Incorrect Response, Post Release, Pre-Release, Released. | |
| Warm-ups Since DTC Cleared | Varies | This parameter indicates the number of warm up cycles that have occurred Since DTCs were cleared. The scan tool will display a higher counts as more warm up cycles have occurred since the DTCs were cleared. | |
| Warm-ups w/o Emission Faults | Varies | This parameter indicates the number of warm up cycles that have occurred without an emission fault present. The scan tool will display a 0 if a fault has occurred. The scan tool will display a higher count if a number of warm up cycles have occurred without an emission fault. | |
| Warm-ups w/o Non-emission Faults | Varies | This parameter indicates the number of warm up cycles that have occurred without a non-emission fault present. The scan tool will display a 0 if a fault has occurred. The scan tool will display a higher count if a number of warm up cycles have occurred without a non-emission fault. | |
| Wide Open Throttle | NO | This parameter indicates the throttle status commanded by the control module. The scan tool will display YES is the vehicle throttle is commanded to wide open. The scan tool will display NO if the vehicle throttle is commanded to an amount less than 100%. | |
Engine Control Module Scan Tool Data
| Parameter | Description |
|---|---|
| A/C Relay | The engine must be running and the ECM must receive an A/C request from the HVAC control module in order to enable the output control. The ECM de-energizes the A/C compressor clutch relay when you select OFF. The relay remains de-energized until you select ON. |
| CMP Actuator | This function controls the camshaft actuator solenoid. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 25 crankshaft degrees. The scan tool initiates the test when the following conditions are met: The vehicle speed is 0 km/h (0 mph). The transmission is in Park or Neutral. The engine speed is between 1,000-1,400 RPM. The system remains in the commanded state until cancelled by the scan tool. |
| CMP Actuator Solenoid | This function controls the camshaft actuator. The normal commanded state is NONE. The system will increase or decrease the angle of the camshaft in 5 degree increments up to 20 crankshaft degrees. The engine must be OFF. |
| Cylinder Power Balance | Enables/disables a cylinder by turning OFF the fuel injector to the cylinder. The fuel injector is normally enabled. The control module disables the fuel injector when the following conditions are met: The engine speed has stabilized. The fuel injector has been selected. When DISABLE is selected, the control module turns the injector OFF for 30 seconds. |
| Dash Lamps | Malfunction Indicator Lamp-Controls the malfunction indicator lamp (MIL). The commanded states include NONE, ON, and OFF. When commanded ON or OFF, the system remains in the commanded state until cancelled by the scan tool. |
| Engine Controls Ignition Relay | This function activates the engine control (EC) ignition relay. The normal commanded state is NONE. When commanded ON or OFF, the engine control module (ECM) turns the relay ON or OFF. The system remains in the commanded state until cancelled by the scan tool. |
| Engine Speed Control | Activates the idle air control (IAC) valve to change engine RPM. The normal commanded state is NONE. To enable the RPM control, all instruction on the scan tool must be completed. The system will INCREASE or DECREASE the engine speed. The SET STEP VALUE changes the engine speed by increments of 25 RPM, 100 RPM, and 500 RPM. The system remains in the commanded state until cancelled by the tool. |
| EVAP Purge Solenoid | Activates the EVAP Purge Valve. The normal commanded state is NONE. The system will INCREASE or DECREASE the amount of EVAP purge valve opening by 10 percent increments within a range of 0-100 percent. The system remains in the commanded state until cancelled by the tool or the fuel tank pressure exceeds 24 mm Hg (12 in H2O). |
| EVAP Service Test | Activates the on-board EVAP diagnostic test. |
| EVAP Vent Solenoid | Activates the EVAP vent solenoid. The normal commanded state is NONE. When commanded ON, the vent valve switches to non-venting. The system remains in the commanded state unless one of the following conditions occurs: Cancelled by the tool Purge is greater than 0 percent, and the fuel tank pressure exceeds 24 mm Hg (12 in H2O). |
| EVAP Purge/Seal | This control enables 2 functions. One function increases or decreases the amount of purge by changing the duty cycle of the purge valve and commanding the vent ON (non-venting). The normal commanded state of both valves is NONE. The system will INCREASE or DECREASE the amount of EVAP purge valve opening by 10 percent increments within a range of 0-100 percent. The second function seals the system after using the purge function to obtain a specific amount of fuel tank pressure (FTP). When activated the purge valve is commanded to 0 percent and the vent valve is commanded ON (non-venting). Both functions remain in the commanded state until cancelled by the tool or the FTP exceeds 24 mm Hg (12 in H2O). |
| Exhaust CMP Actuator Bank 1 | This function controls the exhaust camshaft actuator for bank 1. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 25 crankshaft degrees. The scan tool initiates the test when the following conditions are met: The vehicle speed is 0 km/h (0 mph). The transmission is in Park or Neutral. The engine speed is between 1,000-1,400 RPM. The system remains in the commanded state until cancelled by the scan tool. |
| Exhaust CMP Actuator Bank 2 | This function controls the exhaust camshaft actuator for bank 2. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 25 crankshaft degrees. The scan tool initiates the test when the following conditions are met: The vehicle speed is 0 km/h (0 mph). The transmission is in Park or Neutral. The engine speed is between 1,000-1,400 RPM. The system remains in the commanded state until cancelled by the scan tool. |
| Exhaust CMP Actuator Sol. Bank 1 | This function controls the exhaust camshaft actuator solenoid for bank 1. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator solenoid ON/OFF. The scan tool initiates the test when the following conditions are met: The ignition is ON with the engine OFF. No engine speed is detected. The system remains in the commanded state until cancelled by the scan tool. |
| Exhaust CMP Actuator Sol. Bank 2 | This function controls the exhaust camshaft actuator solenoid for bank 2. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator solenoid ON/OFF. The scan tool initiates the test when the following conditions are met: The ignition is ON with the engine OFF. No engine speed is detected. The system remains in the commanded state until cancelled by the scan tool. |
| Fan Relay 1 | Commands the low speed fan relay ON and OFF. Both cooling fans will activate on low speed |
| Fan Relays 2 and 3 | Commands the series parallel and high speed fan relays ON and OFF. The driver side fan will be OFF. The passenger side fan will activate on high speed. |
| Fan Relays 1, 2 and 3 | Commands the low speed fan, high speed fan, and series parallel relays ON and OFF. Both fans will activate on high speed. |
| Fuel Injector Balance | Enables the fuel injector in order to verify proper fuel injector flow. The ECM will pulse the selected injector when the following conditions are met: All instruction on the scan tool completed Fuel injector selected Key ON, engine OFF The selected fuel injector can only be flowed/pulsed once per ignition cycle. |
| Fuel Pump Relay | Controls the fuel pump relay. The normal commanded state is NONE. When commanded ON/OFF, the PCM turns the fuel pump ON/OFF. If the engine is running, and the fuel pump is commanded OFF, the engine will stall. The system remains in the commanded state until cancelled by the scan tool. |
| Fuel Trim Enable | Disables the ECM ability to learn new fuel trim parameters. The commanded states are NONE, ENABLED, DISABLED. The normal commanded state is NONE. The system remains in the commanded state until cancelled by the scan tool. |
| Fuel Trim Reset | Activates the reset of fuel trim data in all fuel trim cells. |
| GEN L-Terminal | The commanded states are ON and OFF. Selecting OFF commands the ECM to turn OFF the generator and stop generating an output voltage. |
| HO2S Heater Bank 1 Sensor 1 Command | Activates the HO2S bank 1 sensor 1 heater. The commanded states include NONE, ON, and OFF. The normal commanded state is NONE. Commanding the HO2S bank 1 sensor 1 heater ON turns on the heater driver. The system remains in the commanded state until cancelled by the tool. |
| HO2S Heater Bank 1 Sensor 2 Command | Activates the HO2S bank 1 sensor 2 heater. The commanded states include NONE, ON, and OFF. The normal commanded state is NONE. Commanding the HO2S bank 1 sensor 2 heater ON turns on the heater driver. The system remains in the commanded state until cancelled by the tool. |
| HO2S Heater Bank 2 Sensor 1 Command | Activates the HO2S bank 2 sensor 1 heater. The commanded states include NONE, ON, and OFF. The normal commanded state is NONE. Commanding the HO2S bank 2 sensor 1 heater ON turns on the heater driver. The system remains in the commanded state until cancelled by the tool. |
| HO2S Heater Learn | This output control is used to trigger the reset of the learned resistances for the oxygen sensor heaters following a replacement in service. The learned resistances are reset to a calibration used to prevent overheating of the sensors until more accurate resistances may be learned following an extended engine OFF time, typically 12 or more hours. |
| Idle Spark | Disables and enables idle spark advance with the engine running. |
| Intake CMP Actuator Bank 1 | This function controls the intake camshaft actuator for bank 1. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 20 crankshaft degrees. The scan tool initiates the test when the following conditions are met: The vehicle speed is 0 km/h (0 mph). The transmission is in Park or Neutral. The engine speed is between 1,000-1,400 RPM. The system remains in the commanded state until cancelled by the scan tool. |
| Intake CMP Actuator Bank 2 | This function controls the intake camshaft actuator for bank 2. The normal commanded state is NONE. The system will increase or decrease the angle of the selected camshaft in 5 degree increments up to 20 crankshaft degrees. The scan tool initiates the test when the following conditions are met: The vehicle speed is 0 km/h (0 mph). The transmission is in Park or Neutral. The engine speed is between 1,000-1,400 RPM. The system remains in the commanded state until cancelled by the scan tool. |
| Intake CMP Actuator Sol. Bank 1 | This function controls the intake camshaft actuator solenoid for bank 1. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator solenoid ON/OFF. The scan tool initiates the test when the following conditions are met: The ignition is ON with the engine OFF. No engine speed is detected. The system remains in the commanded state until cancelled by the scan tool. |
| Intake CMP Actuator Sol. Bank 2 | This function controls the intake camshaft actuator solenoid for bank 2. The normal commanded state is NONE. When commanded ON/OFF, the ECM turns the camshaft actuator solenoid ON/OFF. The scan tool initiates the test when the following conditions are met: The ignition is ON with the engine OFF. No engine speed is detected. The system remains in the commanded state until cancelled by the scan tool. |
| Loop Status | Controls the system loop status. The commanded states include NONE, OPEN, or CLOSED. The normal commanded state is NONE. When commanded OPEN or CLOSED, the system remains in the commanded state until cancelled by the scan tool. |
| Malfunction Indicator Lamp | Controls the malfunction indicator lamp (MIL). The commanded states include NONE, ON, and OFF. When commanded ON or OFF, the system remains in the commanded state until cancelled by the scan tool. |
| Misfire Graphic | Graphs the accumulated misfires occurring in each cylinder. The scan tool allows for a reset of the misfire graph. |
| Reverse Inhibit | This device control is used to override the state of the Reverse Inhibit output. |
| RVS Disable History Reset | This output control is used to trigger the reset of the last 8 reasons the ECM has disabled remote vehicle start (RVS). |
| Spark Retard | Controls the amount of spark retard. The normal commanded state is NONE. The system will INCREASE or DECREASE the amount of spark retard by 1 degree increments within a range of 0-10 degrees maximum retard. The system remains in the commanded state until cancelled by the tool. |
| Starter Relay | This output control is used to override the state of the Starter Relay output. Fuel and spark are disabled to prevent the engine from starting if the starter relay output is commanded ON. |
| Throttle Position | This function opens the throttle plate in 10 percent increments. The scan tool initiates the test when the following conditions are met: The ignition is ON, with the engine OFF. The vehicle speed is 0 km/h (mph). The system remains in the commanded state until cancelled by the scan tool. |
Output Control
Fuel Pump Flow Control Module Scan Tool Information
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine Idling at Normal Operating Temperature / Vehicle is in Park or Neutral | |||
| Desired Fuel Rail Pressure | 306.8 kPa (44.5 psi) | This displays kPa (psi). This is the desired fuel rail pressure. | |
| Fuel Pump Command | On | The scan tool displays On or Off. This is the current state of the fuel pump command. | |
| Fuel Pump Signal Command | Varies | This displays %. This is the commanded fuel pump signal measured in percentage. | |
| Fuel Rail Pressure Sensor | 296.4-310.3 kPa (43-45 psi) | This displays kPa (psi). This is the current pressure at the fuel rail pressure sensor. | |
| Fuel Rail Pressure Sensor | 4.90-5.01 Volts | This displays Volts. This is the fuel rail pressure sensor voltage. | |
| Ignition 1 Signal | Varies | This displays Volts. This is the current ignition 1 signal. | |
| LT Fuel Pump Trim | Varies | This displays a numeric value. This is the long term (LT) fuel pump trim. | |
| ST Fuel Pump Trim | Varies | This displays a numeric value. This is the short term (ST) fuel pump trim. | |
Fuel Pump Flow Control Module Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| Fuel Pressure Control | This output control is used to control the fuel pressure. |
| Fuel Pump | This output control is used to command the fuel pump ON and OFF. |
| Fuel Pump Trim Reset | This output control is used to reset the fuel pump trim. |
Fuel Pump Flow Control Module Scan Tool Output Controls
Heating, Ventilation and Air Conditioning Control Module Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Engine ON | ||
| A/C Head Pressure | Normal | The scan tool displays Normal or Out of Range. This is the state of the A/C head pressure. |
| A/C LED | Off | The scan tool displays On or Off. This is the state of the air conditioning indicator. |
| AC Permission | Granted | The scan tool displays Granted or Withheld. |
| A/C Request | No | The scan tool displays Yes or No. Yes is displayed if the air conditioning is requested. |
| A/C Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the A/C switch. |
| Ambient Air Temperature | Normal | The scan tool displays Normal or Out of Range. This is the state of the ambient air temperature. |
| Air Inlet Dr Actual | Varies | This displays Counts. This is the current numeric value of the air inlet door as monitored by the HVAC module. |
| Air Inlet Dr Commanded | Varies | This displays Counts. This is the numeric value of the air inlet door as commanded by the HVAC module. |
| Air Inlet Motor Drive | Varies | The scan tool displays Stop, Ambient Air, Increase, Recirculate or Decrease. This is the state of the air inlet motor. |
| Auto Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the auto switch. |
| Aux. Blower Motor PWM | Varies | This displays percent. This is the percentage of power supplied to the auxiliary blower motor. |
| Aux. Mode Door Actual | Varies | This displays Counts. This is the current numeric value of the auxiliary mode door as monitored by the HVAC module. |
| Aux. Inside Air Temp | Varies | This displays °C (°F). This is the current temperature inside the auxiliary area. |
| Aux. Lower Duct Temp. Sensor-Actual | Varies | This displays °C (°F). This is the current temperature inside the lower duct area. |
| Aux. Lower Duct Temp. Sensor-Desired | Varies | This displays °C (°F). This is the desired temperature inside the lower duct area. |
| Aux. Mode Door Commanded | Varies | This displays Counts. This is the numeric value of the auxiliary mode door as commanded by the HVAC module. |
| Aux. Temp. Dr. Motor Command | Varies | This displays Counts. This is the numeric value of the auxiliary temperature door motor as commanded by the HVAC module. |
| Aux. Temp. Dr. Motor Position | Varies | This displays Counts. This is the numeric value of the auxiliary temperature door position as monitored by the HVAC module. |
| Aux. Upper Duct Temp. Sensor-Actual | Varies | This displays °C (°F). This is the actual temperature inside the upper duct area. |
| Aux. Upper Duct Temp. Sensor-Desired | Varies | This displays °C (°F). This is the desired temperature inside the upper duct area. |
| Battery Voltage | Normal | The scan tool displays Normal or Out of Range. This is the state of the system voltage. |
| Battery Voltage Signal | Varies | This displays Volts. This is the battery voltage signal supplied to the HVAC module. |
| Blower Motor Speed Command | Varies | This displays percent. This is the percentage of power supplied to the blower motor. |
| Blower Speed | Off | The scan tool displays Normal or Off. This is the state of the blower motor speed. |
| Coolant Temperature | Varies | This displays °C (°F). This is the current temperature of the engine coolant. |
| Engine Coolant Temp | Normal | The scan tool displays Normal or Out of Range. This is the state of the engine coolant temperature. |
| Engine Running | Yes | The scan tool displays Yes or No. Yes is displayed if the engine is running. |
| Fan Down Button | Inactive | The scan tool displays Active or Inactive. This is the state of the fan down switch. |
| Fan Up Button | Inactive | The scan tool displays Active or Inactive. This is the state of the fan up switch. |
| Front Defrost LED | Off | The scan tool displays On or Off. This is the state of the front defrost indicator. |
| Front Defrost Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the front defrost switch. |
| Ign. Cycles Since last DTC | Varies | This displays a numeric value. This is the number of ignition cycles since the last HVAC module DTC. |
| Inside Air Temp. Sensor | Varies | This displays °C (°F). This is the current temperature of the vehicle interior. |
| Left Sunload Sensor | Varies | This displays Counts. This is an approximate value at the left sunload sensor. |
| Left Temp Dr Actual | Varies | This displays Counts. This is the current numeric value of the driver temperature door as monitored by the HVAC module. |
| Left Temp. Dr. Commanded | Varies | This displays Counts. This is the numeric value of the driver temperature door as commanded by the HVAC module. |
| LH AC Duct Actual | Varies | This displays °C (°F). This is the current temperature of the driver side duct area. |
| LH AC Duct Desired | Varies | This displays °C (°F). This is the desired temperature of the driver side duct area. |
| LH Heater Duct Actual | Varies | This displays °C (°F). This is the current temperature of the driver side duct area. |
| LH Heater Duct Desired | Varies | This displays °C (°F). This is the desired temperature of the driver side duct area. |
| Low Pressure Switch | Closed | The scan tool displays Open or Closed. This is the state of the low pressure switch. |
| Mode Door Actual | Varies | This displays Counts. This is the current numeric value of the mode door as monitored by the HVAC module. |
| Mode Down Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the mode down switch. |
| Mode Dr. Motor Command | Varies | This displays Counts. This is the numeric value of the mode door as commanded by the HVAC module. |
| Mode Select Position | Off | The scan tool displays Off, Auto, Defrost, Heater, Htr./Def., Bi-Level or Panel. This is the current position of the HVAC mode select. |
| Mode Switch Pos. | Varies | The scan tool displays Invalid, Auto, Panel, Bi-Level, Heater, Htr./Def. or Defrost. This is the state of the HVAC mode switch. |
| Mode Up Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the mode up switch. |
| On/Off Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the on/off switch. |
| Outside Air Temp. Filtered | Varies | This displays °C (°F). This is the filtered value of the outside air temperature. |
| Outside Air Temp. Raw | Varies | This displays °C (°F). This is the raw value of the outside air temperature. |
| Rear Defrost LED | Off | The scan tool displays On or Off. This is the state of the rear defrost indicator. |
| Rear Defrost State | Off | The scan tool displays On or Off. This is the state of the rear defrost system. |
| Rear Defrost Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the rear defrost switch. |
| Recirculation LED | Off | The scan tool displays On or Off. This is the state of the recirculation indicator. |
| Recirculation Switch | Inactive | The scan tool displays On or Off. This is the state of the recirculation switch. |
| RH AC Duct Actual | Varies | This displays °C (°F). This is the current temperature of the passenger side duct area. |
| RH AC Duct Desired | Varies | This displays °C (°F). This is the desired temperature of the passenger side duct area. |
| RH Heater Duct Actual | Varies | This displays °C (°F). This is the current temperature of the passenger side duct area. |
| RH Heater Duct Desired | Varies | This displays °C (°F). This is the desired temperature of the passenger side duct area. |
| Right Sunload Sensor | Varies | This displays Counts. This is an approximate value at the right sunload sensor. |
| Right Temp Dr Actual | Varies | This displays Counts. This is the current numeric value of the passenger temperature door as monitored by the HVAC module. |
| Right Temp. Dr. Commanded | Varies | This displays Counts. This is the numeric value of the passenger mode door as commanded by the HVAC module. |
| Right Temp. Setting | Varies | This displays °C (°F). This is the temperature setting of the passenger side area. |
HVAC Control Module Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| A/C Request | This command allows you to turn the A/C Relay On and Off. When the A/C Relay is commanded On, the A/C compressor clutch should be engaged. |
| Afterblow Option | The rear HVAC/RSA module will illuminate all indicators and display segments on the module display. |
| Air Inlet Door | When Outside is selected, the HVAC control module commands the recirculation actuator toward the outside air position. When Recirc is selected, the HVAC control module commands the recirculation actuator toward the recirculation position. This is shown through a command of On and Off. |
| All Status LEDs | All HVAC status LEDs illuminate when ON is selected and turn off when OFF is selected. |
| Auxiliary Air Temp. Door | When Cold is selected, the HVAC control module commands the rear air temperature actuator to the full cold position. When Hot is selected, the HVAC control module commands the rear air temperature actuator to the full hot position. |
| Auxiliary Blower Motor | When ON is selected, the HVAC control module commands the blower motor relay ON and an increase or decrease of air. When OFF is selected, the HVAC control module commands the blower motor relay OFF. |
| Auxiliary Mode Door | When ON is selected, the HVAC control module commands the blower motor relay ON and an increase or decrease of air. When OFF is selected, the HVAC control module commands the blower motor relay OFF. |
| Blower Motor | When ON is selected, the HVAC control module commands the blower motor relay ON and a command to increase or decrease air. When OFF is selected, the HVAC control module commands the blower motor relay OFF. |
| Instant OAT Update | This command updates the outside air temperature. |
| Left Temp. Door Position | This commands the right temperature door position from Cold to Hot. |
| Mode Door Position | When A/C is selected, the HVAC control module commands the mode actuator to the panel position. When Defrost is selected, the HVAC control module commands the actuator to the defrost position. |
| Rear Defog Request | The BCM must receive a Rear Defog request from the HVAC control module in order to enable the output control. The BCM de-energizes the Rear Defog relay located in the I/P BEC when OFF is selected. The relay remains de-energized until ON is selected. |
| Recalibrate All Motors | When ON is selected, all air temp and mode actuators have the capability to perform a recalibration. |
| Right Temp. Door Position | This commands the right temperature door position from Cold to Hot. |
HVAC Control Module Scan Tool Output Controls
Hybrid Powertrain Control Module Scan Tool Information
The Hybrid Powertrain Control Module Scan Tool Data Parameters list contains hybrid controls-related parameters. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
Use the Hybrid Powertrain Control Module Scan Tool Data Parameters list only after the following is determined
- The «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) is completed.
- No diagnostic trouble codes (DTCs)
- On-board diagnostics are functioning properly
The scan tool values from a properly running vehicle may be used for comparison with the vehicle you are diagnosing. The Hybrid Powertrain Control Module Scan Tool Data Parameters list represents values that would be seen on a normally running vehicle.
| IMPORTANT | A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement. |
Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Hybrid Controls for diagnosis.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories OFF, unless otherwise noted | |||
| 12V Circuit Current | Maximum Accessory Load | Near 150A | This parameter displays the actual current flow of the low voltage (12V) circuit as determined by the accessory DC power control module (APM). The APM will stop conversion at current greater than 175A. The parameter display range is 0-255 Amps. |
| 12V Circuit Voltage | Maximum Accessory Load | 15.5V | This parameter displays the actual voltage of the low voltage (12V) circuit as determined by the accessory DC power control module (APM). The parameter display range is 0-25.5V. |
| 12V Enable Command | On | This parameter displays the commanded state of the low voltage (12V) conversion circuit of the accessory dc power control module (APM). The hybrid powertrain control module (HPCM) commands the APM to perform voltage conversion when conditions are acceptable. On is displayed when the APM has received the low voltage circuit (12V) conversion enable command from the HPCM. The APM converts high voltage (300V) to low voltage (12V) and supplies current on the low voltage (12V) circuit in order to support the 12V electrical system loads and also to charge the accessory battery. The parameter display range is On, Off. | |
| 300V AC Isolation Status | Pass | This parameter displays the isolation status of the high voltage (HV) circuitry as determined by the battery energy control module (BECM). The BECM compares the resistance between the HV positive circuit to chassis ground and the HV negative circuit to chassis ground using an alternating current (AC) detection method. Fail is displayed if isolation resistance is detected that is less than an acceptable amount. The BECM tests for isolation just after the ignition has been turned OFF and the HV contactor relays are open. The parameter display range is Pass, Fail, Indeterminate. | |
| 300V Charge Command | Off | This parameter displays the commanded state of the high voltage (300V) conversion circuit of the accessory DC power control module (APM). The APM is capable of converting high current, low voltage on the 12V electrical system into high voltage, low current on the 300V electrical system. This process occurs only during the Jump Assist service operation and requires the assistance of an off-vehicle 12V battery charger. On is displayed when the APM has received the Jump Assist enable command from the hybrid powertrain control module (HPCM). The parameter display range is On, Off. | |
| 300V DC Isolation Status | Pass | This parameter displays the isolation status of the high voltage (HV) circuitry as determined by the hybrid powertrain control module (HPCM). The HPCM compares the resistance between the HV positive circuit to chassis ground and the HV negative circuit to chassis ground using a direct current (DC) detection method. Fail is displayed if isolation resistance is detected that is less than an acceptable amount. The HPCM tests for isolation whenever the HV contactor relays are closed. The parameter display range is Pass, Fail, Indeterminate. | |
| 4WD Low | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to a transfer case selection of 4 Low range. The parameter display range is Yes, No. | |
| APM 300V Circuit Current | Varies | This parameter displays the high voltage circuit current as determined by the accessory dc power control module (APM). The parameter display range is -1638.4 to +1638.35 Amps. | |
| APM Heat Plate Temperature | Near MCM Phase Inverter Temperature | This parameter displays the temperature of the electronics cooling surface that is shared by the accessory dc power control module (APM) and the drive motor generator power inverter module assembly (PIM) as determined by the APM. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| APM Set Point | Maximum Accessory Load | Near 100% | This parameter displays the low voltage (12V) conversion circuit output as a duty cycle percentage as determined by the accessory DC power control module (APM). The APM receives the Low Voltage (12V) output request from the hybrid powertrain control module (HPCM). The HPCM receives a low voltage (12V) voltage output request from the body control module (BCM). The BCM monitors conditions such as 12 volt battery temperature and current flow and requests a specific voltage be maintained. 100% is displayed when the APM is requested to deliver the maximum possible voltage to the low voltage (12V) circuit. The parameter display range is 0 to 100%. |
| Autostart/Stop Fault | No | This parameter displays the status of an Autostart Inhibit due to a diagnostic trouble code (DTC) condition. Autostart is inhibited if the engine fails to start when cranked. The parameter display range is Yes, No. | |
| Autostart/Stop Override | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to a scan tool autostart device control request. The parameter display range is Yes, No. | |
| Aux. Trans. Fluid Pump Actual | Near Aux. Trans Fluid Pump Commanded | This parameter displays the actual revolutions per minute (RPM) of the auxiliary transmission fluid pump (ATFP) as determined by the ATFP control module. The HPCM will command the ATFP control module to operate the auxiliary pump at a specified RPM. 100 percent is displayed when the ATFP control module determines the pump is operating at maximum speed. The parameter display range is 0-100%. | |
| Aux. Trans. Fluid Pump Commanded | Near Aux. Trans Fluid Pump Actual | This parameter displays the commanded rotations per minute (RPM) of the auxiliary transmission fluid pump (ATFP) as determined by the ATFP control module. The HPCM will command the ATFP control module to operate the auxiliary pump at a specified RPM. 100 percent is displayed when the HPCM has requested the ATFP control module to operate the pump at maximum speed. The parameter display range is 0-100%. | |
| Aux. Trans. Pump | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to an auxiliary transmission fluid pump fault or low outside air temperature. The parameter display range is Yes, No. | |
| Aux. Trans. Fluid Pump Fault Status 1 | None | This parameter displays the fault status of the auxiliary transmission fluid pump (ATFP) control module for the current ignition cycle as determined by the ATFP control module. The hybrid powertrain control module (HPCM) will command the ATFP control module to operate the auxiliary pump at a specified RPM. The ATFP control module communicates ATFP status to the HPCM. The parameter display range is PWM Input Fault, Motor Open/Short, Motor CKT Fault, Temp Sen Fault, Low Voltage, ATFPCM Over Temp, ATFPCM Hot, Invalid, No Fault, and Current High/Low. Refer to HPCM DTC P2797 . | |
| Aux. Trans. Fluid Pump Fault Status 2 | None | This parameter displays the fault status of the auxiliary transmission fluid pump (ATFP) control module for the current ignition cycle as determined by the ATFP control module. The hybrid powertrain control module (HPCM) will command the ATFP control module to operate the auxiliary pump at a specified RPM. The ATFP control module communicates ATFP status to the HPCM. The parameter display range is Current Fault, Invalid, No Fault, No Start, and PWM Failure. Refer to HPCM DTC P2797 . | |
| Axle Torque Actual | Varies | This parameter displays actual axle torque. The parameter display range is -8192 to +8191.75 N.m. | |
| Axle Torque Commanded | Varies | This parameter displays commanded axle torque. The parameter display range is -8192 to +8191.75 N.m. | |
| Axle Torque Immediate | Varies | This parameter displays the immediate axle torque required when accelerating. The parameter display range is -8192 to +8191.75 N.m. | |
| Battery Pack Temp | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to the temperature of the hybrid battery assembly. The parameter display range is Yes, No. | |
| BECM HVIC Status | Pass | This parameter displays the continuity status of the high voltage interlock circuit (HVIC) as determined by the battery energy control module (BECM). The HVIC circuit is routed to locations where high voltage is accessible by a service technician. Both motor control modules and the battery energy control module (BECM) monitor the HVIC circuit for continuity. The HVIC circuit is designed to open when access to protected high voltage components has been attempted. The BECM monitors HVIC status when the high voltage contactor relays are closed. Fail is displayed when the BECM detects an open or shorted HVIC circuit condition. Pass is displayed when the BECM detects a closed HVIC circuit condition. Indeterminate is displayed when the BECM is not currently monitoring HVIC status. An HVIC fault condition may cause the high voltage contactors to be commanded open. The parameter display range is Pass, Fail, Indeterminate. | |
| BECM Maximum Voltage | Varies | This parameter displays the maximum voltage monitored during the current ignition cycle as detected by the battery energy control module (BECM). The hybrid battery contains many individual batteries wired in series. The BECM measures voltage across the hybrid battery modules in pairs. This display represents the maximum voltage measured at any of the module pairs. The parameter display range is 0-25.5V. | |
| BECM Minimum Voltage | Varies | This parameter displays the minimum voltage monitored during the current ignition cycle as determined by the battery energy control module (BECM). The hybrid battery contains many individual batteries wired in series. The BECM measures voltage across the hybrid battery modules in pairs. This display represents the minimum voltage measured at any of the module pairs. The parameter display range is 0-25.5V. | |
| BPP Signal | Released | This parameter displays the status of the brake pedal as determined by the body control module (BCM). Applied indicates a zero voltage input to the BCM, brake pedal applied. Released indicates a voltage input to the BCM, brake pedal not applied. The parameter display range is Applied, Released. | |
| Calc. Throttle Position | Pedal Released | 0% | This parameter displays the position of the accelerator pedal as determined by the ECM. This parameter is not active when the transmission is in Park or Neutral. 100% is displayed when the pedal is fully depressed. The parameter display range is 0-100%. |
| Pedal Fully Depressed | 100% | ||
| Contactor Sys. Req. Ckt. Command | 30% | This parameter displays the commanded pulse width modulation (PWM) of the contactor control PWM circuit. The hybrid powertrain control module (HPCM) generates a PWM signal that is monitored by the battery energy control module (BECM). The BECM monitors the PWM signal and operates the high voltage contactors relays as commanded. A 30% PWM (± 5%) is displayed when the HPCM commands contactor relays closed. A 70% PWM (±5%) is displayed when the HPCM commands contactor relays open. A PWM signal outside of these two ranges is considered an invalid request and contactor relays will remain open. In addition to the PWM signal, the HPCM will send the BECM a corresponding serial data command to close or open the contactor relays. The parameter display range is 0-100%. | |
| Contactor System Status | No | This parameter displays the status of an Autostart Inhibit due to hybrid battery high voltage contactor relay status. Autostart is inhibited when the high voltage contactor relays are open. The parameter display range is Yes, No. | |
| Control Module Voltage Signal | Near Actual 12V Battery Voltage | This parameter displays the voltage of the ignition feed circuit of the hybrid powertrain control module (HPCM). The parameter display range is 0-65.535V. | |
| Direction IMS D1 | Park | High | This parameter displays the decoded status of the transmission direction internal mode switch (IMS) individual circuit D1. The IMS contains two discrete shift lever-actuated switch patterns. The IMS range switch pattern is monitored by the transmission control module (TCM) and is utilized to determine gear range as selected by the shift lever. The IMS direction switch pattern is monitored by the hybrid powertrain control module (HPCM) and is utilized to determine vehicle direction and the Park/Neutral start safety condition as selected by the shift lever. High is displayed when the module monitors a high voltage potential on the IMS circuit. Low is displayed when the module monitors a zero voltage potential on the IMS circuit. The HPCM compares the individual IMS circuit high and low states to expected patterns in order to determine shift lever position. The parameter display range is High, Low. |
| Neutral | Low | ||
| Direction IMS D2 | Park | Low | This parameter displays the decoded status of the transmission direction internal mode switch (IMS) individual circuit D2. The IMS contains two discrete shift lever-actuated switch patterns. The IMS range switch pattern is monitored by the transmission control module (TCM) and is utilized to determine gear range as selected by the shift lever. The IMS direction switch pattern is monitored by the hybrid powertrain control module (HPCM) and is utilized to determine vehicle direction and the Park/Neutral start safety condition as selected by the shift lever. High is displayed when the module monitors a high voltage potential on the IMS circuit. Low is displayed when the module monitors a zero voltage potential on the IMS circuit. The HPCM compares the individual IMS circuit high and low states to expected patterns in order to determine shift lever position. The parameter display range is High, Low. |
| Neutral | High | ||
| Direction IMS R1 | Park | High | This parameter displays the decoded status of the transmission direction internal mode switch (IMS) individual circuit R1. The IMS contains two discrete shift lever-actuated switch patterns. The IMS range switch pattern is monitored by the transmission control module (TCM) and is utilized to determine gear range as selected by the shift lever. The IMS direction switch pattern is monitored by the hybrid powertrain control module (HPCM) and is utilized to determine vehicle direction and the Park/Neutral start safety condition as selected by the shift lever. High is displayed when the module monitors a high voltage potential on the IMS circuit. Low is displayed when the module monitors a zero voltage potential on the IMS circuit. The HPCM compares the individual IMS circuit high and low states to expected patterns in order to determine shift lever position. The parameter display range is High, Low. |
| Neutral | Low | ||
| Direction IMS R2 | Park | Low | This parameter displays the decoded status of the transmission direction internal mode switch (IMS) individual circuit R2. The IMS contains two discrete shift lever-actuated switch patterns. The IMS range switch pattern is monitored by the transmission control module (TCM) and is utilized to determine gear range as selected by the shift lever. The IMS direction switch pattern is monitored by the hybrid powertrain control module (HPCM) and is utilized to determine vehicle direction and the Park/Neutral start safety condition as selected by the shift lever. High is displayed when the module monitors a high voltage potential on the IMS circuit. Low is displayed when the module monitors a zero voltage potential on the IMS circuit. The HPCM compares the individual IMS circuit high and low states to expected patterns in order to determine shift lever position. The parameter display range is High, Low. |
| Neutral | High | ||
| Direction IMS S | Park | Low | This parameter displays the decoded status of the transmission direction internal mode switch (IMS) individual circuit S. The IMS contains two discrete shift lever-actuated switch patterns. The IMS range switch pattern is monitored by the transmission control module (TCM) and is utilized to determine gear range as selected by the shift lever. The IMS direction switch pattern is monitored by the hybrid powertrain control module (HPCM) and is utilized to determine vehicle direction and the Park/Neutral start safety condition as selected by the shift lever. High is displayed when the module monitors a high voltage potential on the IMS circuit. Low is displayed when the module monitors a zero voltage potential on the IMS circuit. The HPCM compares the individual IMS circuit high and low states to expected patterns in order to determine shift lever position. The parameter display range is High, Low. |
| Drvr Axle Torque Request | Varies | This parameter displays the drivers requested axle torque as determined by the ECM. The ECM monitors accelerator pedal position and determines how much axle torque is required in order to meet the drivers request. The parameter display range is -8192 to +8191.75 N.m. | |
| Drvr Axle Torque Request | No | This parameter displays the status of an Autostart Entry or Autostop Inhibit due to the drivers request for axle torque. Autostart is requested when the drivers axle torque requirements cannot be maintained without the internal combustion engine. The parameter display range is Yes, No. | |
| ECM Request | No | This parameter displays the status of an Autostop Inhibit or Autostart Entry request by the ECM. The ECM requests an Autostop Inhibit or Autostart Entry when certain ECM DTC's are currently testing or have failed. The parameter display range is Yes, No. | |
| ECM Fault | No | This parameter displays the status of an Autostart Inhibit due to an ECM diagnostic trouble code (DTC) condition. Autostart is inhibited when certain ECM DTCs are set. The parameter display range is Yes, No. | |
| ECT | Near thermostat set-point | This parameter displays the temperature of the internal combustion engine (ICE) coolant as determined by the ECM. This display defaults to a set temperature whenever the ECM detects an ECT sensor circuit fault. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| ECT | No | This parameter displays the status of an Autostop Inhibit or Autostart Entry due to engine coolant temperature (ECT). Autostop is inhibited when ECT is not within a calibrated value range. The parameter display range is Yes, No. | |
| Engine Run Time | Varies | This parameter displays the elapsed internal combustion engine (ICE) run time for the current ignition cycle as determined by the ECM. The parameter display range is 0-65,535 seconds. | |
| Engine Speed | Varies | This parameter displays the revolutions per minute (RPM) of the internal combustion engine (ICE) crankshaft position sensor (CKP) as determined by the hybrid powertrain control module (HPCM). The CKP sensor signal is shared by the HPCM and the ECM. The parameter display range is 0-16,383.75 RPM. | |
| Engine Torque Actual | Varies | This parameter displays actual engine torque as determined by the ECM. This display is only active when the engine is running. The parameter display range is -8192 to +8191.75 N.m. | |
| Engine Torque Commanded | Varies | This parameter displays commanded engine torque as determined by the ECM. This display is only active when the engine is running. The parameter display range is -8192 to +8191.75 N.m. | |
| Hood Position | No | This parameter displays the status of the hood latch switch as determined by the ECM. Yes is displayed when the hood switch indicates the hood is open or a switch circuit fault is observed. The parameter display range is Yes, No. | |
| HPCM 300 V Circuit | Varies | This parameter displays the high voltage circuit voltage as determined by the HPCM. When the HV contactor relays are closed, this parameter will display actual hybrid battery voltage. When the HV contactor relays are open, this parameter will display near 12V battery voltage due to internal power inverter module (PIM) circuitry. The parameter display range is 0- 655.35 V. | |
| HPCM Authentication Status | Valid | This parameter indicates the result of the comparison between the last received immobilizer system response and the expected response calculated by the HPCM. The parameter display range is Unknown, Incorrect, Negative and Valid. | |
| HPCM Challenge Status | Invalid | This parameter shows the immobilizer system status of the HPCM challenge. This indicates whether the currently calculated HPCM challenge is valid. The parameter display range is Valid and Invalid. | |
| HPCM HVIC Status | Pass | This parameter displays the continuity status of the high voltage interlock circuit (HVIC) as determined by each motor control module (MCM). The HVIC circuit is routed to locations where high voltage is accessible by a service technician. Each MCM and the battery energy control module (BECM) monitor the HVIC circuit for continuity. The HVIC circuit is designed to open when access to protected high voltage components has been attempted. The MCMs transmit their HVIC status to the HPCM via a serial data circuit internal to the PIM. Fail is displayed when both MCMs do not detect HVIC circuit current. Pass is displayed when both MCMs detect HVIC circuit current. A Fail HVIC status may cause the high voltage contactors to be commanded open. The parameter display range is Pass, Fail and Indeterminate. | |
| HPCM Response Source | Normal | The parameter indicates the source used to calculate the HPCM response. The sources include Normal, Remote Start, PTO Remote Start. | |
| Hybrid Battery Current | Varies | This parameter displays the actual current flow of the high voltage (300V) electrical system as determined by the battery energy control module (BECM). The parameter display range is -1638.4 to +1638.35 Amps. | |
| Hybrid Batt Max Cell Temp. | Varies | This parameter displays the maximum hybrid battery temperature monitored during the current ignition cycle as determined by the battery energy control module (BECM). The BECM monitors hybrid battery temperature at several locations within the drive motor/generator battery assembly. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| Hybrid Batt Min Cell Temp. | Varies | This parameter displays the minimum hybrid battery temperature monitored during the current ignition cycle as determined by the battery energy control module (BECM). The BECM monitors hybrid battery temperature at several locations within the drive motor/generator battery assembly. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| Hybrid Batt. Pack Voltage | No | This parameter displays the status of an Autostart Entry, Inhibit, or Autostop Entry due to hybrid battery available voltage. Autostart or Autostop function may be disabled when hybrid battery module voltage is not within a calibrated value range. The parameter display range is Yes, No. | |
| Hybrid Batt. Pack Power | No | This parameter displays the status of an Autostart Entry, Inhibit, or Autostop Entry due to hybrid battery power. Autostart or Autostop function may be disabled when hybrid battery power is less than a calibrated value. Hybrid battery power is dependent upon battery temperature. In cold or hot temperatures, battery power may be limited. Observe the Hybrid Batt. Max Cell Temp and Hybrid Batt. Pack Min Cell Temp parameters to determine if temperature is limiting battery power. The parameter display range is Yes, No. | |
| Hybrid Battery SOC | Varies | This parameter displays the state of charge (SOC) of the hybrid batteries as determined by the battery energy control module (BECM). The hybrid batteries are typically maintained between 50-80 percent to extend battery life. The BECM needs to monitor current flow in and out of the batteries to accurately determine SOC. Hybrid Battery SOC is most accurate after driving the vehicle under stop and go conditions for at least 30 minutes. Hybrid Battery SOC is less accurate during long periods of continuous charging or discharging such as: Jump Assist Extended Autostop operation Extended engine idling Extended vehicle OFF condition The parameter display range is 0-100%. | |
| Hybrid Battery SOC | No | This parameter displays the status of an Autostart Entry, Inhibit, or Autostop Entry due to hybrid battery state of charge (SOC). Autostart or Autostop function may be disabled when hybrid battery SOC is less than a calibrated value. The parameter display range is Yes, No. | |
| Hybrid System | No | This parameter displays the status of an Autostart Inhibit due to an HPCM diagnostic trouble code (DTC) condition. Autostart is inhibited when certain HPCM DTCs are set. The parameter display range is Yes, No. | |
| Hybrid Trans. Mode Actual | Park/Neutral | This parameter displays the actual hybrid mode of the transmission. The parameter display range is Park/Neutral, EV1/Reverse, EV2, Gear 1/2/3/4 and Invalid. | |
| IAT | Varies | This parameter displays the temperature of the internal combustion engine (ICE) intake air as determined by the ECM. This display defaults to a set temperature whenever the ECM detects an IAT sensor circuit fault. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| ICE Cranking Speed Commanded | Varies | This parameter displays the requested revolutions per minute (RPM) of the engine crankshaft during a cranking event. The ECM determines the internal combustion engine (ICE) cranking speed for conditions such as engine temperature. The ECM will request a certain cranking speed be delivered by the hybrid powertrain control module (HPCM) when drive motor 1 cranks the ICE. The parameter display range is 0-2040 RPM. | |
| ICE Cranking Status | Inactive | This parameter displays the status of the internal combustion engine (ICE) crank request of the ECM. The hybrid powertrain control module (HPCM) monitors the ECM for this data in order to determine whether to enable or disable ICE cranking. Abort will be displayed when the ECM has determined conditions such as theft deterrent are present and cranking is not allowed. The parameter display range is Crank, Inactive and Abort. | |
| ICE Run Time | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to time conditions. Autostart or Autostop function may be disable when a minimum engine run time period has not been met. The parameter display range is Yes, No. | |
| ICE Status | Running | This parameter displays the status of the internal combustion engine (ICE) as determined by the ECM. The hybrid powertrain control module (HPCM) monitors the ECM for this data in order to determine ICE status. The parameter display range is Off, Invalid, Start, Running, Stop and Stalled. | |
| Ignition Crank | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to ignition switch position. Autostop function may be disabled during remote start conditions. The parameter display range is Yes or No. | |
| IMS Range | Park or Neutral | This parameter displays the vehicle direction selected as determined by the manual shift shaft position switch, also referred to as the internal mode switch (IMS). The IMS contains two discrete shift lever-actuated switch patterns. The IMS range switch pattern is monitored by the TCM and is utilized to determine gear range as selected by the shift lever. The IMS direction switch pattern is monitored by the hybrid powertrain control module (HPCM) and is utilized to determine vehicle direction and the Park/Neutral start safety condition as selected by the shift lever. The parameter display range is Park, Reverse, Neutral, Drive, Transition, Invalid and Illegal Setting. | |
| IMS Range | P/N/D | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to IMS Range selection. Autostart is requested when Manual or Reverse is selected. The parameter display range is Yes, No. |
| Manual/Reverse | Yes | ||
| Invalid Signal | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to invalid data. Invalid data also results in DTCs being stored. The parameter display range is Yes, No. | |
| Inverter Temperature | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to drive motor generator power inverter module (PIM) phase circuit temperature. Autostart or Autostop function may be disabled when inverter temperature is not within a calibrated value range. The parameter display range is Yes, No. | |
| Min. Hybrid Batt. Module Voltage | No | This parameter displays the status of an Autostart or Autostop Inhibit due to hybrid battery module pair voltage. The parameter display range is Yes, No. | |
| Motor 1 Speed Actual | Varies | This parameter displays the actual revolutions per minute (RPM) of Motor 1 as determined by the motor control module (MCM). A positive number indicates the motor is rotating in a clockwise manner. The parameter display range is -32768 to +32767 RPM. | |
| Motor 1 Temperature | Near Motor 2 Temperature | This parameter displays the temperature of the Motor 1 temperature sensor as determined by the motor control module (MCM). The HPCM will reduce motor torque at temperatures greater than 160°C (320°F). Motor torque is reduced to zero if the temperature reaches 190°C (374°F). This display defaults to 140°C (284°F) whenever a motor temperature circuit fault is observed. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| Motor 1 Torque Actual | Varies | This parameter displays the actual torque of Motor 1 as determined by the motor control module (MCM). The parameter display range is -512 to +508 N.m. | |
| Motor 1 Torque Commanded | Varies | This parameter displays the commanded torque of Motor 1 as determined by the motor control module (MCM). The parameter display range is -512 to +508 N.m. | |
| Motor 2 Speed Actual | Varies | This parameter displays the actual revolutions per minute (RPM) of Motor 2 as determined by the motor control module (MCM). A positive number indicates the motor is rotating in a clockwise manner. The parameter display range is -32768 to +32767 RPM. | |
| Motor 2 Temperature | Near Motor 1 Temperature | This parameter displays the temperature of the Motor 2 temperature sensor as determined by the motor control module (MCM). The HPCM will reduce motor torque at temperatures greater than 160°C (320°F). Motor torque is reduced to zero if the temperature reaches 190°C (374°F). This display defaults to 140°C (284°F) whenever a motor temperature circuit fault is observed. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| Motor 2 Torque Actual | Varies | This parameter displays the actual torque of Motor 2 as determined by the motor control module (MCM). The parameter display range is -512 to +508 N.m. | |
| Motor 2 Torque Commanded | Varies | This parameter displays the commanded torque of Motor 2 as determined by the motor control module (MCM). The parameter display range is -512 to +508 N.m. | |
| Motor Temperature | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to drive motor temperature. Autostart or Autostop function may be disabled when motor temperature is not within a calibrated value range. The parameter display range is Yes, No. | |
| Operating Conditions | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to current driving conditions. This condition is normally associated with other request or inhibit concerns such as Drvr Axle Torque Request. The parameter display range is Yes, No. | |
| Reduced Engine Power | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to a reduced engine power condition being reported by the ECM. Reduced engine power also results in DTCs being stored. The parameter display range is Yes, No. | |
| Remote Start Request | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to Remote Vehicle Start operation. The parameter display range is Yes, No. | |
| Regen. Brake Torque Predicated | Varies | This parameter displays the predicted brake torque required when operating in the regenerative braking hybrid mode. The parameter display range is -8192 to +8191.75 N.m. | |
| Regen. Brake Torque Request | Varies | This parameter displays the requested brake torque required when operating in the regenerative braking hybrid mode. The parameter display range is -8192 to +8191.75 N.m. | |
| Reverse Inhibit Command | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to a transmission gear selection of Reverse. The parameter display range is Yes, No. | |
| Run/Crank Mode | No | This parameter displays the status of an Autostart or Autostop Inhibit due to ignition switch position. The parameter display range is Yes, No. | |
| System Voltage | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to 12V system voltage that is out of range as monitored by the HPCM. The parameter display range is Yes, No. | |
| Total Brake Torque | Varies | This parameter displays the total brake torque required when braking as determined by the electronic brake control module (EBCM). The parameter display range is -8192 to +8191.75 N.m. | |
| TR Sw. | Park or Neutral | This parameter displays the transmission gear as commanded by the hybrid powertrain control module (HPCM). Under normal operating conditions this parameter will indicate the position of the transmission manual shift shaft position switch, also referred to as the internal mode switch (IMS). When certain DTCs are set, the HPCM may disable propulsion by turning off the internal combustion engine (ICE) and the electric drive motor generators. This parameter will display Neutral if the HPCM has disabled propulsion. The parameter display range is Park, Reverse, Neutral, Drive 1/2/3/4 and Illegal Setting. | |
| Transmission OSS | 0 RPM | This parameter displays the revolutions per minute (RPM) of the transmission output shaft as determined by the TCM output speed sensor (OSS). The parameter display range is 0-8192 RPM. | |
| Vehicle Speed | 0 km/h (0 mph) | This parameter displays the vehicle speed as determined by the engine control module (ECM). The parameter display range is 0-255 km/h (0-158 mph). | |
| Vehicle Speed | No | This parameter displays the status of an Austostart Entry or Autostop Inhibit due to vehicle speed that exceeds a threshold as monitored by the HPCM. The parameter display range is Yes, No. | |
| VTD Password Learn Enabled | No | This parameter indicates if learning of the immobilizer secret information is enabled. | |
| VTD Security Info. Programmed | Yes | This parameter indicates if the immobilizer secret information, e.g. powertrain pre-release password, powertrain secret key has been programmed. | |
| VTD System Status | Released | This parameter displays the immobilizer system status as determined by the hybrid powertrain control module (HPCM). The parameter display range is Standby, Fuel Disable, Dis. No Resp., Dis. Neg. Resp., Dis. Incor. Resp., Post Release, Pre-Release and Released. | |
Hybrid Powertrain Control Module Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| Auto Start/Stop Command | IMPORTANT: The hood must remain closed while commanding either Autostart or Autostop with the scan tool. Opening the hood while commanding Autostop or Autostart will cause an engine stall, start/stall, vehicle disable condition. The disable condition will remain active until the hood is closed. The Autostart command will not function when the gear selector is in Reverse, Drive, or Manual. Shift the gear selector to Park or Neutral in order to command an Autostart. The hybrid powertrain control module (HPCM) controls the Autostop and Autostart hybrid operation modes. When operating in the Autostop mode, the following control limits apply: Ignition ON. The internal combustion engine (ICE) must be running. The hybrid battery state of charge must be greater than 50%. The engine coolant temperature (ECT) must be between 68°C (154°F) and 109°C (228°F). When operating in the Autostart mode, the following control limits apply: Ignition ON The ICE must be operating in the Autostop hybrid mode. |
| Aux. Trans. Pump Speed | The hybrid powertrain control module (HPCM) commands the auxiliary transmission fluid pump (ATFP) control module to turn the auxiliary pump ON and OFF. Additionally, the HPCM commands the auxiliary pump to operate at a certain speed (RPM). When operating the Auxiliary Transmission Oil Pump Speed control, the following control limits apply: The internal combustion engine (ICE) must be OFF. Electric motor speed must be 0 RPM. The ATFP control module does not communicate over GMLAN. Communication between the ATFP control module and the HPCM occurs over a dedicated circuit. The HPCM will not store ATFP diagnostic trouble codes while operating in the scan tool output control mode. Monitor the HPCM Aux. Trans. Fluid Pump Fault Status 1 and 2 parameters on the scan tool while commanding the auxiliary pump. Real-time ATFP control module diagnostic status can be determined by monitoring the fault status parameters. |
| Clear 300V Impact Detection DTC | IMPORTANT: Perform any required inspection procedures and repair or replace damaged high voltage components as specified in the applicable service information prior to using this control. The Serial Data Gateway Module (SDGM) will communicate to the hybrid powertrain control module (HPCM) when a vehicle impact that may cause damage to the high voltage components has been detected or when the high voltage crash impact detection (HVCID) sensor/circuits has failed. The HPCM clears the HV Impact Detected status. The following control limits apply: The SDGM Crash Sensor Reset must be performed prior to performing this Output Control. The SDGM hybrid crash status must be reporting Normal status. Any SDGM HVCID DTCs must be not be present. Ignition must be ON. Communication DTCs must not be present. |
| Clear 300V Present DTC | IMPORTANT: Perform the high voltage disable procedure and repair or replace damaged high voltage components as specified in the applicable diagnostic prior using this control. The hybrid powertrain control module (HPCM) monitors for a high voltage present condition after the high voltage contactor relays have been opened. When high voltage is present this DTC will set. The HPCM clears the DTC Information for the high voltage present DTC. The following control limits apply: Ignition must be ON. The HPCM must monitor that high voltage is not currently present. Communication DTCs must not be present. Turn the ignition to OFF and wait 5 minutes after performing this Output Control. |
| Hybrid Trans. Commanded State | The hybrid powertrain control module (HPCM) commands the operating mode of the transmission to one of the following states: EV1 EV2 Gear 1 Gear 2 Gear 3 Gear 4 When operating in the Hybrid Trans. Commanded State mode, the following control limits apply: Ignition ON. Vehicle speed must be less than a calibrated limit to allow a downshift state A downshift state will not be allowed if the engine speed would exceed a calibrated limit. An upshift state will not be allowed if vehicle speed is below a calibrated limit. |
| Regenerative Braking | The hybrid powertrain control module (HPCM) will enable or disable blended regenerative braking. When the ignition is ON there are no limits to this control. |
| IMPORTANT |
|---|
| The hood must remain closed while commanding either Autostart or Autostop with the scan tool. Opening the hood while commanding Autostop or Autostart will cause an engine stall, start/stall, vehicle disable condition. The disable condition will remain active until the hood is closed. The Autostart command will not function when the gear selector is in Reverse, Drive, or Manual. Shift the gear selector to Park or Neutral in order to command an Autostart. |
| IMPORTANT |
|---|
| Perform any required inspection procedures and repair or replace damaged high voltage components as specified in the applicable service information prior to using this control. |
| IMPORTANT |
|---|
| Perform the high voltage disable procedure and repair or replace damaged high voltage components as specified in the applicable diagnostic prior using this control. |
Hybrid Powertrain Control Module Scan Tool Output Controls
Inflatable Restraint Passenger Presence System Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Battery Voltage | Varies | This displays volts. This is the voltage input supplied to the passenger presence system. |
| Passenger Classification | Empty | The scan tool displays Unknown, Calibrating, Empty Seat, Small 1, Small 2, Large or Preload. This is the state of the passenger seat, as monitored by the passenger presence system. |
| Passenger Status | No Info | The scan tool displays No Info., Valid, Invalid Class., Invalid Pos., Invalid Data or Inval. Class & Pos. |
| Power Mode | Run | The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch. |
| PPS Enable Status | Enabled | The scan tool displays Disabled or Enabled. This is the status of the PPS Enable. |
| PPS Fault Status | No Fault | The scan tool displays No Fault, Plant Mode, Fault, Mismatch or Barrier. This is the status of the PPS Fault monitor. |
| Pressure Sensor | Varies | This displays volts.This monitors the pressure. |
| SDM Enable Status | Enabled | The scan tool displays Enabled or Disabled. This is the state of the SDM. |
| Seat Belt Tension Sensor | Varies | This displays volts. This monitors the tension of the seat belt. |
Passenger Presence System Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| Re-Zero Passenger Presence System | The passenger presence system (PPS) is a calibrated system that requires rezeroing anytime the seat cushion trim attachments have been removed or the PPS has been replaced. |
Passenger Presence System Scan Tool Output Controls
Inflatable Restraint Sensing and Diagnostic Module Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Active Switch | Enabled | The scan tool displays Enabled or Disabled. This is the state of the SIR active switch. |
| Active Switch | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the active switch. |
| Battery Voltage Signal | Varies | This displays volts. This is the voltage input supplied to the SDM. |
| Deployment Loop 1 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 2 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 3 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 4 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 5 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 6 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 7 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 8 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 9 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 10 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 11 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 12 | Disabled | The scan tool displays Disabled, Enabled. This is the state of the SIR deployment loop. |
| Deployment Loop 1 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 2 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 3 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 4 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 5 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 6 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 7 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 8 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 9 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 10 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 11 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Deployment Loop 12 | Learned | The scan tool displays Learned, Not Learned. This is the learn status of the SIR deployment loop. |
| Driver Seat Belt Switch | Unbuckled | The scan tool displays Buckled or Unbuckled. This is the state of the driver seat belt. |
| Driver Seat Belt Type | Varies | The scan tool displays Switch or Sensor. This is the type of driver seat belt. |
| Driver Seat Position Sensor | Enabled | The scan tool displays Enabled or Disabled. This is the state of the driver seat position sensor. |
| Driver Seat Position Sensor | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the driver seat position sensor. |
| Driver Seat Position Sensor | Varies | The scan tool displays Rearward or Forward. This is the positional state of the drive seat. |
| Impact Sensor 1 | Disabled | The scan tool displays Disabled/Enabled. This is the state of the SIR impact sensor. |
| Impact Sensor 2 | Disabled | The scan tool displays Disabled/Enabled. This is the state of the SIR impact sensor. |
| Impact Sensor 3 | Disabled | The scan tool displays Disabled/Enabled. This is the state of the SIR impact sensor. |
| Impact Sensor 4 | Disabled | The scan tool displays Disabled/Enabled. This is the state of the SIR impact sensor. |
| Impact Sensor 5 | Disabled | The scan tool displays Disabled/Enabled. This is the state of the SIR impact sensor. |
| Impact Sensor 6 | Disabled | The scan tool displays Disabled/Enabled. This is the state of the SIR impact sensor. |
| Impact Sensor 1 | Learned | The scan tool displays Learned/Not Learned. This is the SIR impact sensor learn status. |
| Impact Sensor 2 | Learned | The scan tool displays Learned/Not Learned. This is the SIR impact sensor learn status. |
| Impact Sensor 3 | Learned | The scan tool displays Learned/Not Learned. This is the SIR impact sensor learn status. |
| Impact Sensor 4 | Learned | The scan tool displays Learned/Not Learned. This is the SIR impact sensor learn status. |
| Impact Sensor 5 | Learned | The scan tool displays Learned/Not Learned. This is the SIR impact sensor learn status. |
| Impact Sensor 6 | Learned | The scan tool displays Learned/Not Learned. This is the SIR impact sensor learn status. |
| Loop 1 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 2 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 3 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 4 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 5 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 6 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 7 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 8 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 9 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 10 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 11 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Loop 12 Type | Varies | The scan tool displays Not Used, LF Stage1, RF Stage 1, LF Stage 2, RF Stage 2, LF Preten, RF Preten, LF Sidebag, RF Sidebag, Lt. Roof Stage 1, Rt. Roof Stage 1, Lt. Roof Stage 2, Rt. Roof Stage 2, Lt. Roof Stage 3, Rt. Roof Stage 3. This is the state of the SIR loop. |
| Passenger Seat Belt Switch | Unbuckled | The scan tool displays Buckled or Unbuckled. This is the state of the passenger seat belt. |
| PPS Options | Varies | The scan tool displays Not Present, Manual, Auto or Auto. + Man. This is the current enabled option of the passenger presence system. |
| PPS Status | Enabled | The scan tool displays Enabled or Disabled. This is the state of the passenger presence system. |
| PPS Status | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR has learned the passenger presence system. |
| Primary Key Status | Valid | The scan tool displays Unknown, Valid or Invalid. This is the state of the primary key of the SDM. |
| Psgr. Seat Belt Sensor | Enabled | The scan tool displays Enabled or Disabled. This is the state of the passenger seat belt sensor. |
| Psgr. Seat Belt Sensor | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the passenger seat belt sensor. |
| Psgr. Seat Belt Sensor | Varies | This displays mA. This is the amount of current supplied to the passenger seat belt sensor. |
| Psgr. Seat Belt Type | Varies | The scan tool displays Switch or Sensor. This is the type of passenger seat belt. |
| Psgr. Seat Position Sensor | Enabled | The scan tool displays Enabled or Disabled. This is the state of the passenger seat position sensor. |
| Psgr. Seat Position Sensor | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the passenger seat position sensor. |
| Psgr. Seat Position Sensor | Inactive | The scan tool displays Rearward or Forward. This is the positional state of the passenger seat. |
| Received Primary Key | Valid | The scan tool displays Unknown, Valid or Invalid. Valid is shown if the primary key received from the BCM matches the SDM primary key. |
| Received VIN Digits 2-5 | Varies | The scan tool displays the Secondary Key which includes digits 2 though 5 of the VIN that the BCM sends to the SDM. |
| Received VIN Digits 6-7 | Varies | The scan tool displays the Secondary Key which includes digits 6 and 7 of the VIN that the BCM sends to the SDM. |
| Rollover Sensor | Enabled | The scan tool displays Enabled or Disabled. This is the state of the rollover sensor. |
| Rollover Sensor | Learned | The scan tool displays Learned or Unlearned. Learned is displayed if the SIR learned the rollover sensor. |
| Run/Crank | Active | This displays volts. This is the current power mode of the SDM. |
| SDM Primary Key | Varies | The scan tool displays the primary key that the SDM has stored to memory. |
| Secondary Key Status | Valid | The scan tool displays Unknown, Invalid, Valid. This is the state of the secondary key of the SDM. |
| Sensor 1 Type | Varies | The scan tool displays Not Used, EFS LF, EFS Center, EFS RF, SIS Left Row 1, SIS Right Row 1, SIS Left Row 2, SIS Right Row 2. This is the state of the SIR sensor. |
| Sensor 2 Type | Varies | The scan tool displays Not Used, EFS LF, EFS Center, EFS RF, SIS Left Row 1, SIS Right Row 1, SIS Left Row 2, SIS Right Row 2. This is the state of the SIR sensor. |
| Sensor 3 Type | Varies | The scan tool displays Not Used, EFS LF, EFS Center, EFS RF, SIS Left Row 1, SIS Right Row 1, SIS Left Row 2, SIS Right Row 2. This is the state of the SIR sensor. |
| Sensor 4 Type | Varies | The scan tool displays Not Used, EFS LF, EFS Center, EFS RF, SIS Left Row 1, SIS Right Row 1, SIS Left Row 2, SIS Right Row 2. This is the state of the SIR sensor. |
| Sensor 5 Type | Varies | The scan tool displays Not Used, EFS LF, EFS Center, EFS RF, SIS Left Row 1, SIS Right Row 1, SIS Left Row 2, SIS Right Row 2. This is the state of the SIR sensor. |
| Sensor 6 Type | Varies | The scan tool displays Not Used, EFS LF, EFS Center, EFS RF, SIS Left Row 1, SIS Right Row 1, SIS Left Row 2, SIS Right Row 2. This is the state of the SIR sensor. |
| SIR Warning Indicator | Inactive | The scan tool displays On or Off. This is the status of the SIR warning indicator. |
Supplemental Inflatable Restraint Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| Setup New SDM | This output control is used to set up a new SDM. |
| Setup SDM Primary Key in BCM | This output control is used to set up a new SDM primary key in the BCM. |
Supplemental Inflatable Restraint Scan Tool Output Controls
Inflatable Restraint Vehicle Rollover Sensor Scan Tool Information
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Average Speed | Varies | This displays km/h (mph). This is the average speed of the vehicle. | |
| Battery Voltage Signal | Varies | This displays volts. This is the voltage input supplied to the rollover sensor. | |
| Current Power Mode | Run | The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch. | |
| Engine Virtual Device | Present | The scan tool displays Present or Not Present. | |
| Primary Key Status | Valid | The scan tool displays Unknown, Valid or Invalid. This is the state of the primary key. | |
| Received Primary Key | Varies | The scan tool displays the primary key received. | |
| ROS Occupant Containment Req. | Enable | The scan tool displays Reserved, Disable or Enable. | |
| ROS Primary Key | Varies | The scan tool displays the ROS primary key. | |
| SDM Occupant Containment Status | Enabled | The scan tool displays Disabled or Enabled. | |
| Vehicle Speed Status | Valid | The scan tool displays Valid or Invalid. This is the state of the vehicle speed. | |
Rollover Sensor Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| Setup New ROS | This procedure should be used after a new rollover sensor has been installed. |
Supplemental Inflatable Restraint Scan Tool Output Controls
Instrument Cluster Scan Tool Information
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Battery Voltage | Varies | This displays volts. This is the voltage input supplied to the instrument panel cluster. | |
| Brake Fluid | OK | The scan tool displays OK or Low. This is the state of the brake fluid level. | |
| Brake Fluid Switch | Varies | This displays volts. This is the voltage status of the brake fluid switch. | |
| DIC Fuel Info. | Inactive | The scan tool displays Active or Inactive. This is the state of the DIC Fuel Info. switch. | |
| DIC Information Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the DIC Information switch. | |
| DIC Personalization | Off | The scan tool displays Active or Inactive. This is the state of the DIC Personalization switch. | |
| Ignition 1 Input | Active | The scan tool displays Active or Inactive. This is the state of the Ignition 1 input to the instrument panel cluster. | |
| Ignition Cycle Counter | Varies | The scan tool displays counts. This is the number of times the ignition has been cycled from the OFF to ON position. | |
| Odo/Trip Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the odometer/trip switch. | |
| Passenger Seatbelt Indicator Commanded | Off | This displays On or Off. This is the commanded state of the passenger seatbelt indicator. | |
| Passenger Seatbelt Indicator Status | Off | This displays On or Off. This is the state of the passenger seatbelt indicator. | |
| Set/Reset Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the set/reset switch. | |
| Washer Fluid Level | OK | The scan tool displays OK or Low. This is the state of the washer fluid level. | |
Instrument Panel Cluster Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| Dimming | The IPC dims from 0-100 percent when you select INCREASE or DECREASE by 20 percent increments. |
| Display Test | The instrument panel cluster (IPC) illuminates all of the display segments when you select On. |
| Display(s) Test | The instrument panel cluster (IPC) sweeps all gauges when you select On. |
Instrument Panel Cluster Scan Tool Output Controls
Liftgate Close Actuator Motor Control Module Scan Tool Information
| Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Air Bags Deployed | No | This displays Yes or No. Yes is displayed if the any of the air bags deployed during the last open or close history data. | |
| Battery Voltage Signal 2 | Varies | This displays volts. This is the voltage input supplied to the liftgate module. | |
| Calibration | Varies | This displays Yes or No. Yes is displayed if a calibration cycle occurred during the last open or close history data. | |
| Crank Signal Present | Varies | The scan tool displays Yes or No. This was the last state of the crank signal in the open or close history data. | |
| Door Lock Status | Varies | The scan tool displays Locked or Unlocked. This was the last state of the door locks in the open or close history data. | |
| Fault Active | Varies | This displays Yes or No. Yes is displayed if a fault was active in the open or close history data. | |
| Hall Sensor Feed Status | No Output | The scan tool displays No Output or Short to Ground. This is the state of the hall sensor feed circuit. | |
| Hall Sensor Feed Status (history data) | Varies | The scan tool displays No Output or Short to Ground. This was the last state of the hall sensor feed circuit in the open or close history data. | |
| Interrupted | Varies | This displays Yes or No. Yes is displayed if the liftgate system was interrupted during an open or close cycle. | |
| LGM Clutch Actuator Cmd. | Inactive | This displays Active or Inactive. This is the commanded state of the liftgate module clutch actuator. | |
| LGM Disable Switch | Inactive | This displays Active or Inactive. This is the state of the liftgate disable switch. | |
| LGM Disable Switch (history data) | Inactive | This displays Active or Inactive. This was the last state of the liftgate disable switch during the last open or close history data. | |
| LGM Front Control Switch | Inactive | This displays Active or Inactive. This is the state of the front control switch of the liftgate module. | |
| LGM Full Open Switch | Inactive | This displays Active or Inactive. This is the state of the full open liftgate switch. | |
| LGM Latch Fault | Varies | This displays Yes or No. Yes is displayed if there was a latch fault in the open or close history data. | |
| LGM Latch Motor Cinch Cmd. | Inactive | This displays Active or Inactive. This is the commanded state of the latch motor cinch. | |
| LGM Latch Pawl Sw. | Inactive | This displays Active or Inactive. This is the state of the latch pawl switch. | |
| LGM Latch Ratchet Sw. | Inactive | This displays Active or Inactive. This is the state of the latch ratchet switch. | |
| LGM Latch Motor Release Cmd. | Inactive | This displays Active or Inactive. This is the commanded state of the latch motor release. | |
| LGM Latch Sector Sw. | Inactive | This displays Active or Inactive. This is the state of the latch sector switch. | |
| LGM Motor Closed Cmd. | Inactive | This displays Active or Inactive. This is the commanded state of the liftgate motor closing. | |
| LGM Motor Open Cmd. | Inactive | This displays Active or Inactive. This is the commanded state of the liftgate motor opening. | |
| LGM Open/Close Position Learned | Yes | The scan tool displays Yes or No. This is the state of the liftgate module open/close position programming. | |
| LGM Position Out of Range | Varies | The scan tool displays Yes or No. Yes is displayed if the liftgate position was out of range in the last open or close history data. | |
| Liftgate Ajar Switch | Inactive | The scan tool displays Active or Inactive. This is the state of the liftgate ajar switch. | |
| Liftgate Handle Sw. Status | Inactive | The scan tool displays Active or Inactive. This is the state of the liftgate handle switch. | |
| Liftgate Handle Sw. Status (history data) | Inactive | The scan tool displays Active or Inactive. This was the last state of the liftgate handle switch in the open or close history data. | |
| Liftglass Ajar Switch | Varies | The scan tool displays Ajar or Closed. This was the last state of the liftglass ajar switch in the open or close history data. | |
| Module Over Current Detected | Varies | The scan tool displays Yes or No. Yes is displayed if the liftgate module detected an over current condition in the last open or close history data. | |
| No Signal | Varies | The scan tool displays Yes or No. Yes is displayed if the liftgate module detected a no signal condition in the last open or close history data. | |
| Object Detection Sensor Status | Active | The scan tool displays Active or Inactive. This is the state of the object detection sensor. | |
| Object Detection Sensor Status (history data) | Varies | The scan tool displays Active or Inactive. This was the last state of the object detection sensor in the open or close history data. | |
| Object Sensor Supply Voltage | 3-3.5 V | This displays volts. This is the voltage input supplied to the object sensor. | |
| Obstacle Detected in Liftgate | Varies | This displays Yes or No. Yes is displayed if an obstacle was detected in the last open or close history data. | |
| System Operation Status | Varies | This displays OK or Not OK. OK is displayed if the system operation was normal during the last open or close history data. | |
| System Voltage | Varies | This displays OK or Out of Range. This was the state of the system voltage during the last open or close history data. | |
| Temperature Out of Range | Varies | This displays Yes or No. Yes is displayed if the system temperature was out of range during the last open or close history data. | |
| Theft Armed | Varies | This displays Yes or No. This was the status of the theft system during the last open or close history data. | |
| Vehicle In Park | Varies | This displays Yes or No. Yes is displayed if the vehicle was in Park during the last open or close history data. | |
| Vehicle Speed Too Fast | Varies | This displays Yes or No. Yes is displayed if the vehicle speed exceeded the maximum predetermined speed during the last open or close history data. | |
Liftgate Module Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| LGM Open/Close Test | This will command the liftgate to open and close and to relearn the liftgate travel limits. |
Liftgate Module Scan Tool Output Controls
Motor Control Module 1 Scan Tool Information
The Motor Control Module 1 Scan Tool Data Parameters list contains hybrid controls-related parameters. The list is arranged in alphabetical order.
Use the Motor Control Module 1 Scan Tool Data Parameters list only after the following is determined
- The «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) is completed.
- No diagnostic trouble codes (DTCs)
- On-board diagnostics are functioning properly
The scan tool values from a properly running vehicle may be used for comparison with the vehicle you are diagnosing. The Motor Control Module 1 Scan Tool Data Parameters list represents values that would be seen on a normally running vehicle.
| IMPORTANT | A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement. |
Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Hybrid Controls for diagnosis.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories OFF, unless otherwise noted | |||
| Motor 1 Current Commanded | Varies | This parameter displays the commanded current of Motor 1. The parameter display range is -512 to +508A. | |
| Motor 1 Isolation Voltage | Near HPCM 300V Circuit voltage | This parameter displays the voltage of the chassis Isolation measurement circuit. With no loss of isolation present, this parameter should be at or near the hybrid battery high voltage value. The parameter display range is 0-765 volts. | |
| Motor 1 Phase U Current | Varies | This parameter displays the actual current of the Motor 1 phase U circuit. The parameter display range is -512 to +508A. | |
| Motor 1 Phase V Current | Varies | This parameter displays the actual current of the Motor 1 phase V circuit. The parameter display range is -512 to +508A. | |
| Motor 1 Phase W Current | Varies | This parameter displays the actual current of the Motor 1 phase W circuit. The parameter display range is -512 to +508A. | |
| Motor 1 Resolver Angle | Varies | This parameter displays the physical position of Motor 1. The drive motor generator position sensor is monitored by the MCM. The MCM monitors the angular position, speed and direction of the drive motor generator based upon the signals of the resolver-type position sensor. The parameter display range is 0 to 359°. | |
| Motor 1 Resolver Offset | Between -25 and 25° | This parameter displays the learned offset of the Motor 1 position sensor. The drive motor generator position sensor is monitored by the MCM. The MCM monitors the angular position, speed and direction of the drive motor generator based upon the signals of the resolver-type position sensor. When the ignition is turned OFF, the MCM commands a very slight and precise movement of the motor. From this slight movement, the MCM determines any error that exists in the position sensor. The parameter display range is -32 to 31.75°. | |
| Motor 1 Speed Actual | Varies | This parameter displays the actual revolutions per minute (RPM) of Motor 1. A positive number indicates the motor is rotating in a clockwise manner. The parameter display range is -32768 to +32767 RPM. | |
| Motor 1 Temperature Sensor | Varies | This parameter displays the voltage of the Motor 1 temperature sensor. The parameter display range is 0 to 5.00V. | |
| Motor 1 Torque Actual | Varies | This parameter displays the actual torque of Motor 1. The parameter display range is -512 to +508 N.m. | |
| Motor 1 Torque Commanded | Varies | This parameter displays the commanded torque of Motor 1. The parameter display range is -512 to +508 N.m. | |
| Phase U Current Offset | Between -30 and 30A | This parameter displays the learned offset value of the Motor 1 phase U circuit current sensor. When commanded motor current is zero, the MCM will relearn any phase current sensor that does not indicate 0 amps. The amount of error that was relearned is called the Offset. The parameter display range is -50A to +50A. | |
| Phase U Inverter Temperature | Near other Phase Inverter Temperatures | This parameter displays the temperature of the Motor 1 phase U circuit temperature sensor. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| Phase V Current Offset | Between -30 and 30A | This parameter displays the learned offset value of the Motor 1 phase V circuit current sensor. When commanded motor current is zero, the MCM will relearn any phase current sensor that does not indicate 0 amps. The amount of error that was relearned is called the Offset. The parameter display range is -50A to +50A. | |
| Phase V Inverter Temperature | Near other Phase Inverter Temperatures | This parameter displays the temperature of the Motor 1 phase V circuit temperature sensor. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| Phase W Current Offset | Between -30 and 30A | This parameter displays the learned offset value of the Motor 1 phase W circuit current sensor. When commanded motor current is zero, the MCM will relearn any phase current sensor that does not indicate 0 amps. The amount of error that was relearned is called the Offset. The parameter display range is -50A to +50A. | |
| Phase W Inverter Temperature | Near other Phase Inverter Temperatures | This parameter displays the temperature of the Motor 1 phase W circuit temperature sensor. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
Motor Control Module 1 Scan Tool Data Parameters
Motor Control Module 2 Scan Tool Information
The Motor Control Module 2 Scan Tool Data Parameters list contains hybrid controls-related parameters. The list is arranged in alphabetical order.
Use the Motor Control Module 2 Scan Tool Data Parameters list only after the following is determined
- The «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) is completed.
- No diagnostic trouble codes (DTCs)
- On-board diagnostics are functioning properly
The scan tool values from a properly running vehicle may be used for comparison with the vehicle you are diagnosing. The Motor Control Module 2 Scan Tool Data Parameters list represents values that would be seen on a normally running vehicle.
| IMPORTANT | A scan tool that displays faulty data should not be used. The scan tool concern should be reported to the manufacturer. Use of a faulty scan tool can result in misdiagnosis and unnecessary parts replacement. |
Only the parameters listed below are referenced in this service manual for use in diagnosis. If all values are within the typical range described below, refer to Symptoms - Hybrid Controls for diagnosis.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories OFF, unless otherwise noted | |||
| Motor 2 Current Commanded | Varies | This parameter displays the commanded current of Motor 2. The parameter display range is -512 to +508A. | |
| Motor 2 Isolation Voltage | Near HPCM 300V Circuit voltage | This parameter displays the voltage of the Chassis Isolation measurement circuit. With no loss of isolation present, this parameter should be at or near the hybrid battery high voltage value. the parameter display range is 0-765 volts. | |
| Motor 2 Phase U Current | Varies | This parameter displays the actual current of the Motor 2 phase U circuit. The parameter display range is -512 to +508A. | |
| Motor 2 Phase V Current | Varies | This parameter displays the actual current of the Motor 2 phase V circuit. The parameter display range is -512 to +508A. | |
| Motor 2 Phase W Current | Varies | This parameter displays the actual current of the Motor 2 phase W circuit. The parameter display range is -512 to +508A. | |
| Motor 2 Resolver Angle | Varies | This parameter displays the physical position of Motor 2. The drive motor generator position sensor is monitored by the MCM. The MCM monitors the angular position, speed and direction of the drive motor generator based upon the signals of the resolver-type position sensor. The parameter display range is 0 to 359°. | |
| Motor 2 Resolver Offset | Between -25 and 25° | This parameter displays the learned offset of the Motor 2 position sensor. The drive motor generator position sensor is monitored by the MCM. The MCM monitors the angular position, speed and direction of the drive motor generator based upon the signals of the resolver-type position sensor. When the ignition is turned OFF, the MCM commands a very slight and precise movement of the motor. From this slight movement, the MCM determines any error that exists in the position sensor. The parameter display range is -32 to 31.75°. | |
| Motor 2 Speed Actual | Varies | This parameter displays the actual rotations per minute (RPM) of Motor 2. A positive number indicates the motor is rotating in a clockwise manner. The parameter display range is -32768 to +32767 RPM. | |
| Motor 2 Temperature Sensor | Varies | This parameter displays the voltage of the Motor 2 temperature sensor. The parameter display range is 0 to 5.00V. | |
| Motor 2 Torque Actual | Varies | This parameter displays the actual torque of Motor 2. The parameter display range is -512 to +508 N.m. | |
| Motor 2 Torque Commanded | Varies | This parameter displays the commanded torque of Motor 2. The parameter display range is -512 to +508 N.m. | |
| Phase U Current Offset | Between -30 and 30A | This parameter displays the learned offset value of the Motor 2 phase U circuit current sensor. When commanded motor current is zero, the MCM will relearn any phase current sensor that does not indicate 0 amps. The amount of error that was relearned is called the Offset. The parameter display range is -50A to +50A. | |
| Phase U Inverter Temperature | Near other Phase Inverter Temperatures | This parameter displays the temperature of the Motor 2 phase U circuit temperature sensor. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| Phase V Current Offset | Between -30 and 30A | This parameter displays the learned offset value of the Motor 2 phase V circuit current sensor. When commanded motor current is zero, the MCM will relearn any phase current sensor that does not indicate 0 amps. The amount of error that was relearned is called the Offset. The parameter display range is -50A to +50A. | |
| Phase V Inverter Temperature | Near other Phase Inverter Temperatures | This parameter displays the temperature of the Motor 2 phase V circuit temperature sensor. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
| Phase W Current Offset | Between -30 and 30A | This parameter displays the learned offset value of the Motor 2 phase W circuit current sensor. When commanded motor current is zero, the MCM will relearn any phase current sensor that does not indicate 0 amps. The amount of error that was relearned is called the Offset. The parameter display range is -50A to +50A. | |
| Phase W Inverter Temperature | Near other Phase Inverter Temperatures | This parameter displays the temperature of the Motor 2 phase W circuit temperature sensor. The parameter display range is -40°C to +215°C (-40°F to +419°F). | |
Motor Control Module 2 Scan Tool Data Parameters
Object Alarm Module Scan Tool Information
| Scan Tool Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON, Engine OFF, Parking Assist System ON | |||
| Battery Voltage | Varies | The scan tool displays the current voltage of the battery in volts. | |
| Loudspeaker Feed Voltage Output | Varies | The scan tool displays the output feed voltage to the radio measured in counts. | |
| Park Assist Disable 1-7 History | Varies | The scan tool displays Empty, Manual Disable, Park Brake, Hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sense Disturbance, or Sensor Ring Time. This parameter displays the status of the park assist disable history. | |
| Park Assist Switch | Active | The scan tool displays Active or Inactive. This parameter displays the state of the parking assist switch. | |
| Park Assist Switch LED | Off | The scan tool displays Off or ON. This parameter displays the state of the parking assist switch LED. | |
| Park Assist Switch LED CKT | OK | The scan tool displays OK or Overcurrent. This parameter displays the state of the park assist switch led circuit. | |
| Park Assist System Status | Enable | The scan tool displays Disable, Enable, Inhibit or Failed/Block. This parameter displays the current status of the parking assist system. If the parameter displays Inhibit refer to the Park Assist Disable History. | |
| Power Mode | Accessory | The scan tool displays Off, Accessory, Run or Crank Request. This parameter displays the state of the reference voltage. | |
| Rear Region 1 | Varies | The scan tool displays No Detect, Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, or Zone 8. This parameter displays the state of the region the vehicle is in when the parking assist system is active and an object is detected behind the vehicle. | |
| Rear Region 2 | Varies | The scan tool displays No Detect, Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, or Zone 8. This parameter displays the state of the region the vehicle is in when the parking assist system is active and an object is detected behind the vehicle. | |
| Rear Region 3 | Varies | The scan tool displays No Detect, Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, or Zone 8. This parameter displays the state of the region the vehicle is in when the parking assist system is active and an object is detected behind the vehicle. | |
| Vehicle Speed | 0 | The scan tool displays the vehicle speed in km/h (mph). | |
Park Assist Module
| Scan Tool Output Control | Description |
|---|---|
| Clear History Data | The rear object sensor control module will clear the park assist disable history when commanded by the scan tool. |
Park Assist Scan Tool Output Controls
Power Steering Control Module Scan Tool Information
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Ignition ON | |||
| Battery Voltage | Varies | The scan tool displays volts. This is the current battery voltage as monitored by the power steering control module. | |
| Calculated System Temperature | Varies | This displays °C (°F). This is the calculated temperature of the power steering system. | |
| Intermediate Voltage | Varies | The scan tool displays volts. The PSCM monitors the intermediate voltage power limit request message from the accessory power module (APM). | |
| Overload Protection Incidents | Varies | This displays a numeric value. This is the number of incidents where the system was protected from overload. | |
| Steering Shaft Torque | Varies | This displays N-m. This is the calculated force of the steering shaft, as monitored by the power steering control module. | |
| Steering Wheel Position | Varies | This displays °. This is the state of the steering wheel position. | |
| Vehicle Speed Status | Varies | The scan tool displays Valid or Invalid. This is the current state of the vehicle speed. | |
Power Steering Control Module Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| Steering Pos./Torque Sensor Cal. | This is used to calibrate the steering position/torque sensor. |
Power Steering Control Module Scan Tool Output Controls
Radio Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Antenna Module | Enabled | This scan tool displays Enabled or Disabled. This is the state of the antenna module. |
| Auxiliary Audio Input | Present | The scan tool displays Present or Not Present. This is the state of the auxiliary audio input. |
| DRR | Present | The scan tool displays Present or Not Present. This is the state of the DRR. |
| Ign. Cycles Since last DTC | Varies | The scan tool displays the number of ignition cycles since the last DTC. |
| Phone Signal | Present | The scan tool displays Present or Not Present. This is the state of the phone signal. |
| Power Mode | Run | The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch. |
| Power Mode Config. | Normal Mode | The scan tool displays Bench Mode or Normal Mode. This is the configuration of the power mode. |
| Signal Strength | Varies | This displays dBuV. This is the signal strength of the radio. |
| Theft Armed | Learned VIN | The scan tool displays Learned VIN or No VIN. This is the state of the VIN programming in the radio. |
| Theft Lock Status | Inactive | The scan tool displays Active or Inactive. This is the state of the theft lock system. |
| Video Display | Varies | The scan tool displays Present or Not Present. This is the state of the video display. |
Radio Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| Left Front Speaker | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Left Rear Speaker | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Right Front Speaker | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Right Rear Speaker | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker OFF will turn OFF all speakers. |
Radio Scan Tool Output Controls
Radio Speaker Amplifier Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Battery Voltage | Varies | This displays volts. This is the current voltage of the battery. |
| Calculated System Temperature | Varies | This displays °C (°F). This is the calculated temperature of the system. |
| Calibration ID | Varies | The scan tool displays the Calibration ID of the module. |
| Module Information | Varies | The scan tool displays various module information. |
| VIN Information | Varies | The scan tool displays digits from the vehicles vin number. |
Amplifier (Bose) Scan Tool Data List
| Scan Tool Output Control | Additional Menu Selections | Description |
|---|---|---|
| AudioPilot Test | Amplifier | Turn radio ON. Make sure audiopilot is ON. Turn radio station to FM channel with a lot of static. Audiopilot will increase volume and then decrease volume. |
| Center IP Speaker | Front Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Left Front Tweeter | Front Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Left Front Door Speaker | Front Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Microphone Test | Amplifier | Tests the noise compensation microphone operation. |
| Right Front Door Speaker | Front Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Right Front Tweeter | Front Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Left Rear D-Pillar Speaker | Rear Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Left Rear Door Speaker | Rear Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Rear Subwoofer | Rear Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Right Rear D-Pillar Speaker | Rear Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
| Right Rear Door Speaker | Rear Speakers | Commanding the speaker ON will turn OFF all speakers except this speaker. Commanding the speaker ON will produce a tone heard from this speaker. Commanding the speaker OFF will turn OFF all speakers. |
Amplifier (Bose) Scan Tool Output Controls
Rear Object Alarm Module Scan Tool Information
| Scan Tool Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF/Object Detection System ON | |||
| Battery Voltage | Varies | The scan tool displays volts. This is the current voltage of the battery. | |
| Loudspeaker Feed Voltage Output | Varies | The scan tool displays counts. This is the output feed voltage to the radio measured in counts. | |
| Park Assist Disable 1 History | Varies | The scan tool displays Empty, Manual Disable, Park Brake, Hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sense Disturbance, Snow/Ice/Mud, Sensor Ring Trim. This is the status of the park assist disable history. | |
| Park Assist Disable 2 History | Varies | The scan tool displays Empty, Manual Disable, Park Brake, Hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sense Disturbance, Snow/Ice/Mud, Sensor Ring Trim. This is the status of the park assist disable history. | |
| Park Assist Disable 3 History | Varies | The scan tool displays Empty, Manual Disable, Park Brake, Hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sense Disturbance, Snow/Ice/Mud, Sensor Ring Trim. This is the status of the park assist disable history. | |
| Park Assist Disable 4 History | Varies | The scan tool displays Empty, Manual Disable, Park Brake, Hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sense Disturbance, Snow/Ice/Mud, Sensor Ring Trim. This is the status of the park assist disable history. | |
| Park Assist Disable 5 History | Varies | The scan tool displays Empty, Manual Disable, Park Brake, Hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sense Disturbance, Snow/Ice/Mud, Sensor Ring Trim. This is the status of the park assist disable history. | |
| Park Assist Disable 6 History | Varies | The scan tool displays Empty, Manual Disable, Park Brake, Hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sense Disturbance, Snow/Ice/Mud, Sensor Ring Trim. This is the status of the park assist disable history. | |
| Park Assist Disable 7 History | Varies | The scan tool displays Empty, Manual Disable, Park Brake, Hitch/Obj Attach, Reverse Ovrspeed, Inhibit, Sense Disturbance, Snow/Ice/Mud, Sensor Ring Trim. This is the status of the park assist disable history. | |
| Park Assist Front Display LED CKT | OK | The scan tool displays Ok/Overcurrent. This is the state of the front display for the object detection system. | |
| Park Assist Rear Display LED CKT | OK | The scan tool displays Ok/Overcurrent. This is the state of the rear display for the object detection system. | |
| Park Assist Rear Red LED | Off | The scan tool displays Off/On. This is the state of the park assist rear red LED. | |
| Park Assist Rear Y1 LED | Off | The scan tool displays Off/On. This is the state of the park assist rear Y1 LED. | |
| Park Assist Rear Y2 LED | Off | The scan tool displays Off/On. This is the state of the park assist rear Y2 LED. | |
| Park Assist Switch | Active | The scan tool displays Active/Inactive. This is the state of the park assist switch. | |
| Park Assist Switch LED | Off | The scan tool displays Off/ON. This is the state of the park assist switch LED. | |
| Park Assist Switch LED CKT | OK | The scan tool displays Ok/Overcurrent. This is the state of the park assist switch led for the object detection system. | |
| Park Assist System Status | Enable | The scan tool displays Disable, Enable, Inhibit, Failed/Block. This is the status of the park assist system. | |
| Power Mode | Run | The scan tool displays Off, Accessory, Run and Crank Request. This is the state of the object detection system. | |
| Rear Region 1 | Varies | The scan tool displays No Detect, Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8. This is the state of the region the vehicle is in when the object detection system is active. | |
| Rear Region 2 | Varies | The scan tool displays No Detect, Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8. This is the state of the region the vehicle is in when the object detection system is active. | |
| Rear Region 3 | Varies | The scan tool displays No Detect, Zone 1, Zone 2, Zone 3, Zone 4, Zone 5, Zone 6, Zone 7, Zone 8. This is the state of the region the vehicle is in when the object detection system is active. | |
| Sensor Feed Voltage Output | Varies | The scan tool displays counts. This is the amount of volts being sent to the object sensors in counts. | |
| Vehicle Speed | 0 mph | The scan tool displays MPH. This is the speed of the vehicle. | |
Park Assist Module
| Scan Tool Output Control | Additional Menu Selection(s) | Description |
|---|---|---|
| Clear History Data | Special Functions | The object alarm module clears the park assist disable history when commanded from the scan tool. |
| LED Test | Special Functions | The object alarm module illuminates the rear red LED and yellow LEDs one at a time. |
| Rear Red LED | Special Functions LED Test | The object alarm module illuminates the rear red LED when commanded ON from the scan tool. |
| Rear Yellow LED 1 | Special Functions LED Test | The object alarm module illuminates the rear yellow LED when commanded ON from the scan tool. |
| Rear Yellow LED 2 | Special Functions LED Test | The object alarm module illuminates the rear yellow LED when commanded ON from the scan tool. |
Park Assist Scan Tool Output Controls
Rear Seat Heater Control Module Scan Tool Information
| Scan Tool Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition ON/Engine OFF | |||
| Left Rear Seat HVC Mode | Off | The scan tool displays Off, Back & Cushion, Back Only and Cool. This is the state of the left rear seat HVAC mode. | |
| Left Rear Seat HVC Level | High | The scan tool displays High, Medium and Low. This is the state of the left rear HVAC level when commanded on. | |
| Left Rear Seat Back Heat Status | Inactive | The scan tool displays Active/Inactive. This is the state of the left rear seat back heat. | |
| Left Rear Seat Cushion Heat Status | Inactive | The scan tool displays Active/Inactive. This is the state of the left rear seat cushion heat. | |
| Seat Heat Supply Voltage | Inactive | The scan tool displays Active/Inactive. This is the state of the seat's heat supply voltage. | |
| Right Rear Seat HVC Mode | Off | The scan tool displays Off, Back & Cushion, Back Only and Cool. This is the state of the right rear seat HVAC mode. | |
| Right Rear Seat HVC Level | High | The scan tool displays High, Medium and Low. This is the state of the right rear HVAC level when commanded on. | |
| Right Rear Seat Back Heat Status | Inactive | The scan tool displays Active/Inactive. This is the state of the right rear seat back heat. | |
| Right Rear Seat Cushion Heat Status | Inactive | The scan tool displays Active/Inactive. This is the state of the right rear seat cushion heat. | |
| Seat Heat Supply Voltage | Inactive | The scan tool displays Active/Inactive. This is the state of the seat's heat supply voltage. | |
Rear Heated Seat Module
Remote Control Door Lock Receiver Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Fob 1 Battery | OK | The scan tool displays OK or Low. This is the state of the Fob 1 battery. |
| Fob 1 Function | None | The scan tool displays None, Lock, Dr Door Unlock, All Door Unlock, R Closure Rel., Lt Sliding Ctrl., Rt Sliding Ctrl., Panic, Fuel Door, Power Window, Power Top, Engine Start, Engine Stop, Fob Program, Locate, R Closure Close, R Closure Open, R Closure Stop, Double Lock, R Closure Start or Lt Sliding Stop. This is the state of the Fob 1 command as monitored by the RCDLR. |
| Fob 1 Programmed | Yes | The scan tool displays Yes or No. Yes is displayed if the Fob 1 is programmed into the RCDLR. |
| Fob 2 Battery | OK | The scan tool displays OK or Low. This is the state of the Fob 2 battery. |
| Fob 2 Function | None | The scan tool displays None, Lock, Dr Door Unlock, All Door Unlock, R Closure Rel., Lt Sliding Ctrl., Rt Sliding Ctrl., Panic, Fuel Door, Power Window, Power Top, Engine Start, Engine Stop, Fob Program, Locate, R Closure Close, R Closure Open, R Closure Stop, Double Lock, R Closure Start or Lt Sliding Stop. This is the state of the Fob 2 command as monitored by the RCDLR. |
| Fob 2 Programmed | Yes | The scan tool displays Yes or No. Yes is displayed if the Fob 2 is programmed into the RCDLR. |
| Fob 3 Battery | OK | The scan tool displays OK or Low. This is the state of the Fob 3 battery. |
| Fob 3 Function | None | The scan tool displays None, Lock, Dr Door Unlock, All Door Unlock, R Closure Rel., Lt Sliding Ctrl., Rt Sliding Ctrl., Panic, Fuel Door, Power Window, Power Top, Engine Start, Engine Stop, Fob Program, Locate, R Closure Close, R Closure Open, R Closure Stop, Double Lock, R Closure Start or Lt Sliding Stop. This is the state of the Fob 3 command as monitored by the RCDLR. |
| Fob 3 Programmed | Yes | The scan tool displays Yes or No. Yes is displayed if the Fob 3 is programmed into the RCDLR. |
| Fob 4 Battery | OK | The scan tool displays OK or Low. This is the state of the Fob 4 battery. |
| Fob 4 Function | None | The scan tool displays None, Lock, Dr Door Unlock, All Door Unlock, R Closure Rel., Lt Sliding Ctrl., Rt Sliding Ctrl., Panic, Fuel Door, Power Window, Power Top, Engine Start, Engine Stop, Fob Program, Locate, R Closure Close, R Closure Open, R Closure Stop, Double Lock, R Closure Start or Lt Sliding Stop. This is the state of the Fob 4 command as monitored by the RCDLR. |
| Fob 4 Programmed | Yes | The scan tool displays Yes or No. Yes is displayed if the Fob 4 is programmed into the RCDLR. |
| Front Placard | Varies | This displays Counts. |
| Last Fob Used | Varies | The scan tool displays None, Fob 1, Fob 2, Fob 3, Fob 4 or Fob 5. This was the last Fob used, as monitored by the RCDLR. |
| Learn in Progress | Yes | The scan tool displays Yes or No. This is the status of the key fob. |
| LF Pressure Sensor Mode | Varies | The scan tool displays Learn, Re-measure, Rolling, Entering Off or Exiting Off. This is the state of the left front pressure sensor. |
| LF Pressure Status | Normal | The scan tool displays Unknown, Normal, Low, Flat or High. This is the state of the left front tire pressure. |
| LF Tire Press. Sensor Status | Normal | The scan tool displays Normal or Failed. This is the state of the left front tire pressure sensor. |
| LF Tire Pressure | Varies | This displays kPa (psi). This is the amount of pressure in the left front tire. |
| LF Tire Pressure Sensor Battery Status | OK | The scan tool displays OK or Low. This is the state of the battery in the left front tire pressure sensor. |
| LR Pressure Sensor Mode | Varies | The scan tool displays Learn, Re-measure, Rolling, Entering Off or Exiting Off. This is the state of the left rear pressure sensor. |
| LR Pressure Status | Normal | The scan tool displays Unknown, Normal, Low, Flat or High. This is the state of the left rear tire pressure. |
| LR Tire Press. Sensor Status | Normal | The scan tool displays Normal or Failed. This is the state of the left rear tire pressure sensor. |
| LR Tire Pressure | Varies | This displays kPa (psi). This is the amount of pressure in the left rear tire. |
| LR Tire Pressure Sensor Battery Status | OK | The scan tool displays OK or Low. This is the state of the battery in the left rear tire pressure sensor. |
| Rear Placard | Varies | This displays Counts. |
| RF Pressure Sensor Mode | Varies | The scan tool displays Learn, Re-measure, Rolling, Entering Off or Exiting Off. This is the state of the right front pressure sensor. |
| RF Pressure Status | Normal | The scan tool displays Unknown, Normal, Low, Flat or High. This is the state of the right front tire pressure. |
| RF Tire Press. Sensor Status | Normal | The scan tool displays Normal or Failed. This is the state of the right front tire pressure sensor. |
| RF Tire Pressure | Varies | This displays kPa (psi). This is the amount of pressure in the right front tire. |
| RF Tire Pressure Sensor Battery Status | OK | The scan tool displays OK or Low. This is the state of the battery in the right front tire pressure sensor. |
| RR Pressure Sensor Mode | Varies | The scan tool displays Learn, Re-measure, Rolling, Entering Off or Exiting Off. This is the state of the right rear pressure sensor. |
| RR Pressure Status | Normal | The scan tool displays Unknown, Normal, Low, Flat or High. This is the state of the right rear tire pressure. |
| RR Tire Press. Sensor Status | Normal | The scan tool displays Normal or Failed. This is the state of the right rear tire pressure sensor. |
| RR Tire Pressure | Varies | This displays kPa (psi). This is the amount of pressure in the right rear tire. |
| RR Tire Pressure Sensor Battery Status | OK | The scan tool displays OK or Low. This is the state of the battery in the right rear tire pressure sensor. |
| Selected Front Tire Type | Varies | The scan tool displays N/A, P-Metric (S), P-Metric (X), Load Range C, Load Range D or Load Range E. This is the type of front tires used on the vehicle. |
| Selected Rear Tire Type | Varies | The scan tool displays N/A, P-Metric (S), P-Metric (X), Load Range C, Load Range D or Load Range E. This is the type of rear tires used on the vehicle. |
| TPM Indicator/Message | Off | The scan tool displays On or Off. This is the state of the TPM indicator. |
| TPM System Enabled | Yes | The scan tool displays Yes or No. Yes is displayed if the TPM system is enabled. |
Remote Control Door Lock Receiver Scan Tool Data Parameters
| Scan Tool Output Control | Description |
|---|---|
| Copy and Paste TPM Information | This procedure copies existing setup information from the module. |
| Invalidate All Fobs | This program will erase all key fobs from memory and then begin reprogramming. |
| Next Available Slot | This program will add key fobs being programmed to the first open slot available in the module. |
| Program Key Fob 1 | Place module in program mode. Repeatedly press and hold the Lock/Unlock buttons on the key fob. |
| Program Key Fob 2 | Place module in program mode. Repeatedly press and hold the Lock/Unlock buttons on the key fob. |
| Program Key Fob 3 | Place module in program mode. Repeatedly press and hold the Lock/Unlock buttons on the key fob. |
| Program Key Fob 4 | Place module in program mode. Repeatedly press and hold the Lock/Unlock buttons on the key fob. |
| Tire/Type/Pressure Selection | Select load range from list. Select recommended front tire pressure. Select recommended rear tire pressure. |
Remote Control Lock Receiver Scan Tool Output Controls
Serial Data Gateway Module Scan Tool Information
The Serial Data Gateway Module (SDGM) Scan Tool Data List contains all module parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
Use the scan tool data values under the following conditions
- The «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) is complete.
- The On-Board Diagnostics are functioning properly.
- There are no diagnostic trouble codes (DTCs) present.
| IMPORTANT | Do not use a scan tool that displays faulty data. Report the condition to the scan tool manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts. |
Only the parameters listed below are referenced in this manual for diagnosis. If a scan tool displays other parameters, those values are not recommended by General Motors for use in diagnosis.
The scan tool values from a properly running vehicle may be used for comparison with the vehicle you are diagnosing. The values below represent a typical display recorded from a properly functioning system.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine at idle, upper radiator hose hot, closed throttle, transmission in Park, closed loop operation, accessories OFF, brake pedal not applied, Hood Open, State of charge 60-80 percent. | |||
| APM Wakeup Status | Yes/No | Yes | This parameter displays the status of the discrete APM Wakeup line that is driven by the SDGM. The parameter display range is Yes, No. |
| Instantaneous Drive Efficiency | % | Varies | This parameter displays a value calculated by the SDGM to control the driver efficiency gauge on the cluster. It gives directional feedback to the driver as to whether their driving style is moving towards or away from the desired efficiency. 0 is considered efficient driving. This parameter only works when the engine is running. The parameter display range is -100% to 100%. |
| Hybrid Mode Status | Varies | This parameter displays the actual operating condition determined by the HCP and stored by the SDGM to supply hybrid driver information to the Navigation Radio. The parameter display range is Accessory, Idle, Auto Stop, Battery 2WD, Battery 4WD, Hybrid 2WD, Hybrid 4WD, Engine 2WD, Engine 4WD, Charging 2WD, Charging 4WD. | |
| Hybrid Crash Sensor 1 | No Crash / Crash Detected / Unavailable / Sensing Failed | No Crash | This parameter displays the condition being reported by the front end High Voltage Circuit Impact Detection sensor. The parameter display range is No Crash, Crash Detected, Unavailable, Sensing Failed. |
| Hybrid Crash Status | No Crash / Crash Detected | No Crash | This parameter displays the latched condition of the SDGM in the event a crash has occurred. The parameter display range is No Crash, Crash Detected. |
| Hybrid Batt. Cooling Fan Command | % | Varies | This parameter displays the hybrid battery cooling fan speed in percent. The range is zero when stopped, to 100 percent when at full speed. The parameter indicates the maximum desirable fan speed as determined by the SDGM. This calculated value is sent to the BECM. The BECM controls the actual fan speed, though normally the controlled speed never exceeds the SDGM recommendation. |
Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| Crash Sensing Detected EEPROM Reset Control | The SDGM latches a Crash Event when reported by the HVCID. This data is also reported to the HCP in order to keep contactors from being closed until all high voltage components have been inspected for integrity. This control will clear a Crash Event stored in the SDGM as the Hybrid Crash Status. |
Scan Tool Output Controls
Theft Deterrent Module Scan Tool Information
| Parameter | Expected Value | Definition |
|---|---|---|
| Operating Conditions: Ignition ON | ||
| Auto Learn Counter | Varies | This displays Counts. This is the number of times the auto learn procedure was carried out by the TDM. |
| Auto. Learn Timer | Varies | This displays minutes. This is the amount of minutes the TDM took to auto learn. |
| Battery Reconnect | No | The scan tool displays Yes or No. Yes is displayed if the battery was recently reconnected. |
| Fleet Vehicle | No | The scan tool displays Yes or No. Yes is displayed if the vehicle is a fleet vehicle. |
| Fuel Continue | No | The scan tool displays Yes or No. |
| Fuel Disable Ignition Off | Yes | The scan tool displays Yes or No. Yes is displayed if the fuel is disabled during ignition OFF. |
| Fuel Disable Timeout | No | The scan tool displays Yes or No. Yes is displayed if the fuel disable timed out. |
| Ignition Voltage Signal | Present | The scan tool displays Present or Not Present. Present is displayed if there is an ignition voltage signal to the TDM. |
| Immobilization | Inactive | The scan tool displays Active or Inactive. This is the state of the immobilizer system. |
| Immobilizer Programmed | Yes | The scan tool displays Yes or No. This is the state of the immobilizer system programming. |
| Incorrect VIN 1 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 2 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 3 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 4 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 5 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 6 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 7 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 8 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 9 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Incorrect VIN 10 | No Error | The scan tool displays Unknown, No Error, ECM/PCM, TCM, EBCM, DSCC, TBCM, ESCM, ASCM, BCM, BCM Aux., SDM, PPS, ROS, PIDM, IPC, DIC, HUD, Chime, Radio, Amp., CDX, RSA, DRR, Onstar, HVAC, RCC, DDM, PDM, LRDM, RRDM, LGM, PSDM, MSM, HVSM, RCDLR, SOD, TDM or SCLM. The module displayed has an incorrect VIN programmed into that module. |
| Learn Coded Key | No | The scan tool displays Yes or No. |
| Master Keys Learned | Varies | This displays Counts. This is the number of master keys learned by the TDM. |
| PCM Authentication Status | Valid | The scan tool displays Unknown, Incorrect, Negative or Valid. This is the state of the PCM authentication. |
| PCM Auto. Learn Timer | Inactive | The scan tool displays Active or Inactive. This is the current state of the ECM auto learn timer. |
| PCM Password Learning | Enabled | The scan tool displays Enabled or Disabled. This is the state of the password learning in the ECM. |
| PCM Release Status | Release | The scan tool displays Unknown, Post Release, Pre-Release or Release. This is the release status of the ECM. |
| Power Mode | Run | The scan tool displays Off, Accessory, Run or Crank Request. This is the state of the ignition switch. |
| Powertrain DTC | No | The scan tool displays Yes or No. Yes is displayed if there is a powertrain DTC stored in the ECM or TCM. |
| Previous TDM State | Varies | The scan tool displays Asleep, Wakeup, Normal, Learn Passkey, Tamper, Monitor Key, Fail Pending, Fail Enabled, Lrn Keys Stdby, Learn More Keys, Learn Pending, Auto Learn, Auto. Lrn. Done, No Coded Key, Check Second Key, VIN Check or VIN Timer. This was the last state of the TDM. |
| Security Code Programmed | No | The scan tool displays Yes or No. Yes is displayed if a security code is programmed. |
| Start Disabled | No | The scan tool displays Yes or No. Yes is displayed if the starter is disabled. |
| Substitution Detection Status | Pass | The scan tool displays Pass or Fail. Pass is displayed if the TDM does not sense a module with incorrect VIN programming. |
| Tamper Status | Inactive | The scan tool displays Active or Inactive. This is the state of the tamper system. |
| TDM State | Varies | The scan tool displays Asleep, Wakeup, Normal, Learn Passkey, Tamper, Monitor Key, Fail Pending, Fail Enabled, Lrn Keys Stdby, Learn More Keys, Learn Pending, Auto Learn, Auto. Lrn. Done, No Coded Key, Check Second Key, VIN Check or VIN Timer. This was the last state of the TDM. |
| Telltale Status | Off | The scan tool displays On, Off, Flash or Invalid. This is the state of the security indicator. |
| Theft Problem | No | The scan tool displays Yes or No. Yes is displayed if there is a theft problem. |
| Total Keys Learned | Varies | This displays Counts. This is the number of total keys learned by the TDM. |
| Transponder Key | Present | The scan tool displays Present or Not Present. Present is displayed when a transponder is present. This does not mean that this is a valid or learned transponder, but only that a transponder is present. |
| Valid Key | Yes | The scan tool displays Yes or No. Yes is displayed if a valid key was used as monitored by the TDM. |
| Valid VIN | Yes | The scan tool displays Yes or No. Yes is displayed if the VIN is valid. |
| VIN Learned | Yes | The scan tool displays Yes or No. Yes is displayed if the VIN was learned. |
| VIN Message Received | Yes | The scan tool displays Yes or No. Yes is displayed if the VIN message is received |
Theft Deterrent Module Scan Tool Data Parameters
Trailer Brake Control Module Scan Tool Information
| Scan Tool Parameter | System State | Expected Value | Definition |
|---|---|---|---|
| Operating Conditions: Ignition is ON, engine OFF, and vehicle is stationary | |||
| ABS Active | No | The scan tool displays Yes/No. The scan tool displays No when ABS is not active. | |
| Brake Apply Pressure Status | Valid | The scan tool displays Invalid or Valid. The scan tool displays Valid when the ignition is ON, and the brake apply sensor is not faulted. | |
| Battery Voltage Signal | Varies | The scan tool displays 0-18 Volts. The scan tool displays approximately 12 Volts when the ignition is ON. | |
| Brake Switch Status | Off | The scan tool displays On/Off. The scan tool indicates Off when the brake is not applied. | |
| Electric Trailer Brakes Detected | No | The scan tool displays Yes or No. The scan tool displays Yes when the vehicle is connected to a trailer equipped with electric brakes. | |
| HS Communication | Yes | The scan tool displays Yes or No. | |
| Ignition Run/Crank | Inactive | The scan tool will display Active or Inactive. The scan tool will display Active when the signal received from the ECM Run/Crank position. | |
| Master Cylinder Pressure Sensor Input | Varies | The scan tool will display brake fluid pressure. The scan tool will display kPa or psi signal received from the trailer brake control module. | |
| Manual Apply Switch | Varies | The scan tool displays percent of manual apply lever travel. The scan tool displays 0-100%. | |
| Manual Apply Switch 5 V | Varies | The scan tool displays Volts. This is the reference voltage of the manual apply switch. | |
| Manual Apply Switch | Varies | The scan tool displays Volts. This is the voltage of the manual apply lever. | |
| Manual Apply Switch Position Error | Varies | The scan tool displays percent of error between the manual apply and redundant manual apply signals. The scan tool displays 0-100%. A proper functioning switch should have a value less than 20 % | |
| Redundant Manual Apply SW. | Varies | The scan tool displays percent of manual apply lever travel using a redundant signal track. The scan tool displays 0-100% | |
| Redundant Manual Apply SW. | Varies | The scan tool displays volts. This is the voltage of the manual apply switch. | |
| Trailer Brake Control | Disabled | The scan tool will display Enabled/Disabled. The scan tool will display the signal received from the trailer brake control module. | |
| TBCM Diagnostic Fault | No | The scan tool will display Yes or No if a fault is detected. The scan tool will display the Yes if a fault signal is received from the trailer brake control module. | |
| TBCM Relay Feedback | Varies | The scan tool displays a numeric value. | |
| TBCM Relay Feedback Signal | 12 Volts | The scan tool displays volts. This is the voltage of the relay feedback signal. | |
| Trailer Stop Lamp Signal | Off | The scan tool will display Not Requested or Off, Requested depending on the state of the brake switch, and manual apply lever. Requested will be displayed if the brake switch is active or On if the manual apply lever is applied. | |
| TBCM Cmd. Duty Cycle | Varies | The scan tool displays percent of battery voltage output commanded to the trailer brakes and depends on battery voltage and user gain setting. Approximately 100% will be indicated when user gain is set to 10.0 and the manual apply lever is fully applied with the engine running. | |
| Trailer Brake Relay Cmd. | 12 Volts | The scan tool displays 0-18 Volts. The scan tool displays voltage commanded to the trailer brakes when a trailer with electric brakes is connected and depends on battery voltage and user gain setting. Approximately 12-14 volts will be indicated when user gain is set to 10.0 and the manual apply lever is fully applied with the engine running. | |
| Trailer Brake Relay Status | Disabled | The scan tool will display Disabled or Enabled. Disabled will be displayed whenever there are no faults present in the trailer brake control module. | |
| Trailer Connection Detected | No | The scan tool displays Yes or No. The scan tool displays Yes when a trailer with electric trailer brakes is connected. | |
| Trailer Disconnect Detected | No | The scan tool will display Yes or No depending on the trailer connections. Yes will be displayed if a trailer connection is made to a trailer equipped with electric trailer brakes, and a disconnect occurs within the same ignition cycle. | |
| User Gain Switch | Varies | The scan tool displays percent of full gain setting. The scan tool displays 0-100%. Each full gain setting represents an increment of approximately 10 percent of full gain setting. Approximately 40% will be indicated with a gain setting of 4.0, 65% will be indicated with a gain setting of 6.5, etc. | |
| User Gain Switch | Varies | The scan tool displays volts. This is the voltage of the full gain setting. | |
| User Gain Switch 5 V Reference | Varies | The scan tool displays volts. This is the reference voltage of the user gain switch. | |
| Vehicle Speed | Km/h or mph | The scan tool displays 0-327 km/h (0-204 mph). The scan tool displays 0 km/h (0 mph) when the vehicle is not moving or is moving at speeds less than or equal to 0 km/h (0 mph). | |
Trailer Brake Control Module (TBCM) Scan Tool Data List
Transfer Case Shift Control Module Scan Tool Information (MP 3010-NP0)
| Parameter | Expected Value | Description |
|---|---|---|
| Operating Conditions: Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories OFF, unless otherwise noted. | ||
| 2WD High Indicator Light | On | This parameter displays On when the transfer case shift control module commands the 2WD high indicator light On. The scan tool displays On or Off. |
| 4WD High Indicator Light | Off | This parameter displays On when the transfer case shift control module commands the 4WD high indicator light On. The scan tool displays On or Off. |
| 4WD Low Indicator Light | Off | This parameter displays On when the transfer case shift control module commands the 4WD low indicator light On. The scan tool displays On or Off. |
| Accessory Status | Active | This parameter displays Not Active, and Active. |
| ATC Motor Init. Test | Passed | This parameter displays Not Initialized, Passed, Failed, or in Progress when the key off initialization sequence has occurred. |
| Auto 4WD Indicator Light | On | This parameter displays On when the transfer case shift control module commands the auto 4WD indicator light On. The scan tool displays On or Off. |
| Battery Voltage | Battery Voltage | This parameter displays the voltage measured by the transfer case shift control module at the transfer case shift control module battery feed. The scan tool displays a range of 0-25.5 volts. |
| Clutch Calibration Status | Normal Learn | This parameter displays not learned, initial learn, and normal learn. |
| Clutch Coupling | Varies | This parameter displays the amount of clutch activation shown in percentage. |
| Front Axle Actuator | Battery Voltage | This parameter displays the voltage input to the front axle actuator from 0-25 volts. |
| Front Axle Actuator Status | Disengaged | This parameter displays either disengaged or engaged, engaged when the system is in Auto 4WD, 4WD, or 4WD Low modes, and disengaged when the mode is in neutral, or 2WD mode. |
| Front Axle Switch | Unlocked | This parameter displays either locked or unlocked depending on the feedback from the front axle actuator switch, which will be battery voltage when the vehicle is in a 4WD or Auto 4WD mode. |
| Incremental Impulse Sensor | Varies | This parameter displays the direction the incremental sensor is moving as clockwise or counter clockwise. |
| Incremental Position Sensor Direction | Varies | This parameter displays the pulse width modulated voltage signal being supplied to the incremental sensor via the transfer case control module. |
| Incremental Position Sensor | Varies | This parameter displays the position of the incremental sensor in degrees. |
| Incremental Position Sensor | Varies | This parameter displays the position of the incremental sensor in incremental sensor return voltage. |
| Mode Switch Return Voltage | Varies | This parameter displays the transfer case shift control switch return voltage from 0-7.5 volts. |
| Mode Switch Selected | 2 High | This parameter displays the transfer case shift control switch mode currently selected by the driver. |
| Mode Switch Supply Voltage | 5 Volts | This parameter displays the voltage being supplied to the transfer case shift control switch by the transfer case control module from 0-7.5 volts. |
| Motor Brake | Battery Voltage | This parameter displays the voltage being supplied to the transfer case motor brake via the transfer case control module from 0 to battery voltage. |
| Neutral Indicator Light | Off | This parameter displays On when the transfer case shift control module commands the neutral indicator light On. The scan tool displays On or Off. |
| Rotational Position Sensor | Varies | This parameter displays the position of the rotational position sensor in degrees. |
| Rotational Position Sensor | Varies | This parameter displays the position of the rotational position sensor by displaying the rotational position sensor return voltage as read by the transfer case control module. |
| Run/Crank | Active | This parameter displays the status of the run/crank signal to the transfer case control module as active or inactive. |
| Software Part Number | Current Software Release | This parameter displays the numbers or characters assigned to the current version of software used in the transfer case shift control module. The scan tool displays an alphanumeric value. |
| Total Slippage | Varies | This parameter displays the total slippage of both the front and rear propshafts. The scan tool displays a range of 0-8,192 RPM. |
| Transfer Case Lock | Disengaged | This parameter displays the status of the transfer case lock as engaged or disengaged, the lock will be engaged in auto 4WD, 4WD, or 4WD low and disengaged in 2WD and neutral. |
| Transfer Case Motor | 0 Amps | This parameter displays the current draw in amperage that the motor is currently drawing from the transfer case control module. |
| Transfer Case Position | 2 High | This parameter displays the current mode the transfer case is in as indicated by the transfer case control module. |
| Trans. Fluid Temp | Varies | This parameter displays the transmission fluid temperature in degrees Celsius. |
| TR Switch Status | Park | This parameter displays the current gear the transmission is in. |
| Vehicle Speed | Varies | This parameter displays vehicle speed in kilometers per hour. |
Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| IMPORTANT: Transmission must be in transmission neutral for any of these output controls to operate. Refer to the scan tool manual for complete scan tool operating instructions. | |
| 2WD High Indicator Light | This function allows the technician to command the 2WD high indicator light, within the transfer case shift control switch, on or off. |
| 4WD High Indicator Light | This function allows the technician to command the 4WD high indicator light, within the transfer case shift control switch, on or off. |
| 4WD Low Indicator Light | This function allows the technician to command the 4WD low indicator light, within the transfer case shift control switch, on or off. |
| ATC Motor Learn | This function allows the technician to command the transfer case shift control module to relearn the clutch status after the encoder motor, module, or transfer case is replaced. |
| Auto 4WD Indicator Light | This function allows the technician to command the auto 4WD indicator light, within the transfer case shift control switch, on or off. |
| Neutral Indicator Light | This function allows the technician to command the neutral indicator light, within the transfer case shift control switch, on or off. |
| IMPORTANT |
|---|
| Transmission must be in transmission neutral for any of these output controls to operate. |
Scan Tool Output Controls
Transfer Case Shift Control Module Scan Tool Information (MP 3023/3024-NQH)
| Parameter | Expected Value | Description |
|---|---|---|
| Operating Conditions: Engine Idling/Radiator Hose Hot/Closed Throttle/Park or Neutral/Closed Loop/Accessories OFF, unless otherwise noted. | ||
| 2WD High Indicator Light | On | This parameter displays On when the transfer case shift control module commands the 2WD high indicator light On. The scan tool displays On or Off. |
| 4WD High Indicator Light | Off | This parameter displays On when the transfer case shift control module commands the 4WD high indicator light On. The scan tool displays On or Off. |
| 4WD Low Indicator Light | Off | This parameter displays On when the transfer case shift control module commands the 4WD low indicator light On. The scan tool displays On or Off. |
| Accessory Status | Active | This parameter displays Not Active, and Active. |
| ATC Motor Init. Test | Passed | This parameter displays Not Initialized, Passed, Failed, or in Progress when the key off initialization sequence has occurred. |
| Auto 4WD Indicator Light | On | This parameter displays On when the transfer case shift control module commands the auto 4WD indicator light On. The scan tool displays On or Off. |
| Battery Voltage | Battery Voltage | This parameter displays the voltage measured by the transfer case shift control module at the transfer case shift control module battery feed. The scan tool displays a range of 0-25.5 volts. |
| Clutch Calibration Status | Normal Learn | This parameter displays not learned, initial learn, and normal learn. |
| Clutch Coupling | Varies | This parameter displays the amount of clutch activation shown in percentage. |
| Front Axle Actuator | Battery Voltage | This parameter displays the voltage input to the front axle actuator from 0-25 volts. |
| Front Axle Actuator Status | Disengaged | This parameter displays either disengaged or engaged, engaged when the system is in Auto 4WD, 4WD, or 4WD Low modes, and disengaged when the mode is in neutral, or 2WD mode. |
| Front Axle Switch | Unlocked | This parameter displays either locked or unlocked depending on the feedback from the front axle actuator switch, which will be battery voltage when the vehicle is in a 4WD or Auto 4WD mode. |
| Incremental Impulse Sensor | Varies | This parameter displays the direction the incremental sensor is moving as clockwise or counter clockwise. |
| Incremental Position Sensor Direction | Varies | This parameter displays the pulse width modulated voltage signal being supplied to the incremental sensor via the transfer case control module. |
| Incremental Position Sensor | Varies | This parameter displays the position of the incremental sensor in degrees. |
| Incremental Position Sensor | Varies | This parameter displays the position of the incremental sensor in incremental sensor return voltage. |
| Mode Switch Return Voltage | Varies | This parameter displays the transfer case shift control switch return voltage from 0-7.5 volts. |
| Mode Switch Selected | 2 High | This parameter displays the transfer case shift control switch mode currently selected by the driver. |
| Mode Switch Supply Voltage | 5 Volts | This parameter displays the voltage being supplied to the transfer case shift control switch by the transfer case control module from 0-7.5 volts. |
| Motor Brake | Battery Voltage | This parameter displays the voltage being supplied to the transfer case motor brake via the transfer case control module from 0 to battery voltage. |
| Neutral Indicator Light | Off | This parameter displays On when the transfer case shift control module commands the neutral indicator light On. The scan tool displays On or Off. |
| Rotational Position Sensor | Varies | This parameter displays the position of the rotational position sensor in degrees. |
| Rotational Position Sensor | Varies | This parameter displays the position of the rotational position sensor by displaying the rotational position sensor return voltage as read by the transfer case control module. |
| Run/Crank | Active | This parameter displays the status of the run/crank signal to the transfer case control module as active or inactive. |
| Software Part Number | Current Software Release | This parameter displays the numbers or characters assigned to the current version of software used in the transfer case shift control module. The scan tool displays an alphanumeric value. |
| Total Slippage | Varies | This parameter displays the total slippage of both the front and rear propshafts. The scan tool displays a range of 0-8,192 RPM. |
| Transfer Case Lock | Disengaged | This parameter displays the status of the transfer case lock as engaged or disengaged, the lock will be engaged in auto 4WD, 4WD, or 4WD low and disengaged in 2WD and neutral. |
| Transfer Case Motor | 0 Amps | This parameter displays the current draw in amperage that the motor is currently drawing from the transfer case control module. |
| Transfer Case Position | 2 High | This parameter displays the current mode the transfer case is in as indicated by the transfer case control module. |
| Trans. Fluid Temp | Varies | This parameter displays the transmission fluid temperature in degrees Celsius. |
| TR Switch Status | Park | This parameter displays the current gear the transmission is in. |
| Vehicle Speed | Varies | This parameter displays vehicle speed in kilometers per hour. |
Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| IMPORTANT: Transmission must be in transmission neutral for any of these output controls to operate. Refer to the scan tool manual for complete scan tool operating instructions. | |
| 2WD High Indicator Light | This function allows the technician to command the 2WD high indicator light, within the transfer case shift control switch, on or off. |
| 4WD High Indicator Light | This function allows the technician to command the 4WD high indicator light, within the transfer case shift control switch, on or off. |
| 4WD Low Indicator Light | This function allows the technician to command the 4WD low indicator light, within the transfer case shift control switch, on or off. |
| ATC Motor Learn | This function allows the technician to command the transfer case shift control module to relearn the clutch status after the encoder motor, module, or transfer case is replaced. |
| Auto 4WD Indicator Light | This function allows the technician to command the auto 4WD indicator light, within the transfer case shift control switch, on or off. |
| Neutral Indicator Light | This function allows the technician to command the neutral indicator light, within the transfer case shift control switch, on or off. |
| IMPORTANT |
|---|
| Transmission must be in transmission neutral for any of these output controls to operate. |
Scan Tool Output Controls
Transmission Control Module Scan Tool Information (2ML70)
The Transmission Control Module Scan Tool Data List contains all transmission related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
The values below represent a typical display recorded from a properly functioning system.
| IMPORTANT | Do not use a scan tool that displays faulty data. Report the condition to the scan tool manufacturer. The use of a faulty scan tool can result in misdiagnosis and the unnecessary replacement of parts. |
Only the parameters listed below are used/referenced in this manual for diagnosis. If a scan tool displays other parameters, those values are not recommended by General Motors for use in diagnosis.
If all values are within the expected range described below, refer to Symptoms - Automatic Transmission for diagnosis.
The scan tool values from a properly functioning transmission may be used for comparison with the transmission you are diagnosing. The values below represent a typical display recorded from a properly functioning system.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine at idle, upper radiator hose hot, closed throttle, transmission in Park, closed loop operation, accessories OFF, brake pedal not applied. | |||
| BPP Signal | Applied/Released | Released | This parameter displays the status of the brake switch circuit input. Applied indicates a zero voltage input, brake pedal applied. Released indicates a voltage input, brake pedal released. The scan tool displays Applied or Released. |
| Calc. Throttle Position | % | 0% | This parameter displays a calculated value, which is determined by the accelerator pedal position and the actual throttle position, used to optimize transmission controls. The parameter represents the driver's intended request for torque or acceleration. The range is 0-100%, where 0% represents an idle or coast request and 100% represents a request for wide open throttle (WOT). |
| Calc. Transmission ISS | RPM | Varies | This parameter displays the rotational calculated speed of the transmission input shaft. The scan tool displays input shaft speed as revolutions per minute (RPM). |
| Clutch 1 Slip Speed | RPM | Varies | This parameter displays the slip speed of the low 1-2 clutch. The scan tool displays in RPM. |
| Clutch 1 Status | Applied/Released | This parameter displays the commanded state of the low 1-2 clutch. The scan tool displays Applied/Released. | |
| Clutch 2 Slip Speed | RPM | Varies | This parameter displays the slip speed of the Direct 2-3-4 clutch. The scan tool displays in RPM. |
| Clutch 2 Status | Applied/Released | Varies | This parameter displays the commanded state of the Direct 2-3-4 clutch. The scan tool displays Applied/Released. |
| Clutch 3 Slip Speed | RPM | Varies | This parameter displays the slip speed of the 4th clutch. The scan tool displays in RPM. |
| Clutch 3 Status | Applied/Released | Varies | This parameter displays the commanded state of the 4th clutch. The scan tool displays Applied/Released. |
| Clutch 4 Slip Speed | RPM | Varies | This parameter displays the slip speed of the 1-3 clutch. The scan tool displays in RPM. |
| Clutch 4 Status | Applied/Released | Varies | This parameter displays the commanded state of the 1-3 clutch. The scan tool displays Applied/Released. |
| Distance Since First Failure | Km (mi) | Varies | This parameter displays the distance in km (mi) since the first failure that caused the DTC was set. The scan tool will display increasing distance as the vehicle is driven. |
| Distance Since Last Failure | Km (mi) | Varies | This parameter displays the distance in km (mi) since the last failure that caused the DTC was set. The scan tool will display increasing distance as the vehicle is driven. |
| Drvr Axle Torque Request | Numeric | Varies | This parameter displays the drivers requested axle torque as determined by the ECM. The ECM monitors accelerator pedal position and determines how much axle torque is required in order to meet the drivers request. The parameter display range is -8192 to +8191.75 N.m. |
| Driver Shift Control | Active/Inactive | Inactive | This parameter displays Active or Inactive. The scan tool displays Active when the gear selector is in the sport (S) position, which enables TAP shift. The scan tool displays Inactive when the gear selector is not in the S position, TAP shift disabled. |
| Driver Shift Request | Upshift/ Downshift/ None/ Invalid | None | This parameter displays the current request from the TAP Shift System. This parameter will display upshift, downshift or invalid, depending on the amount of voltage measured at the remote shift selector input, and will also display none when there is no request. |
| ECT | °C (°F) | Varies | This parameter displays the input signal from the engine coolant temperature (ECT) sensor. ECT is high at 151°C (304°F) when the signal voltage is low, 0 volt. ECT is low at -40°C (-40°F) when the signal voltage is high, 5 volt. |
| Engine Run Time | Hours: Minutes: Seconds | Varies | This parameter displays in Hours/Minutes/Seconds, the length of time the engine has been running. |
| Engine Speed | RPM | Varies | This parameter displays the rotational speed of the engine expressed as revolutions per minute. |
| Engine Torque | N.m (lb ft) | Varies | This parameter displays a calculated value based on engine load, throttle position, mass air flow, and other engine inputs. This parameter is accurate to within 20 N.m (15 ft lb) of actual measured engine torque. |
| Fail Counter | Counts | 0-255 | This parameter displays the number of ignition cycles with a failure reported since the first ignition cycle with a failure reported. |
| Gear Ratio | Ratio | Varies | This parameter displays the actual transmission gear ratio. The scan tool displays the gear ratio calculated from the automatic transmission input shaft speed sensor (AT ISS) and the automatic transmission output shaft speed sensor (AT OSS) inputs. |
| IAT | °C (°F) | Varies | This parameter displays the temperature of the internal combustion engine (ICE) intake air as determined by the ECM. This display defaults to a set temperature whenever the ECM detects an IAT sensor circuit fault. The parameter display range is -40°C to +215°C (-40°F to +419°F). |
| Ignition Voltage | Volts | 12-14 | This parameter displays the system voltage measured at the ignition feed. |
| IMS | Park, Reverse, Neutral, Drive, Manual, Invalid, or Open | Park | This parameter displays Park, Reverse, Neutral, Manual, or Invalid. The IMS Range display represents a decoded status of the four inputs from the IMS. The combination of IMS inputs are used to determine which position the manual valve is in at any time. |
| IMS A/B/C/P | HI/Low | Low/Hi/Hi/Low | This parameter displays the status of the four A/B/C/P inputs from the automatic transmission internal mode switch. HI indicates an ignition voltage signal. LOW indicates a 0 voltage signal. The scan tool will display HI/LOW, HI/LOW, HI/LOW, HI/LOW. |
| Not Run Counter | Counts | 0-255 | This parameter displays the number of ignition cycles without a pass or a failure reported since the first ignition cycle with a failure reported. |
| OSS Supply Voltage | OK, Out of Range | OK | This parameter displays OK, Out of Range. |
| Line PC Sol. CKT Status | OK, Open, Short to GND, Short to Volts, Indeterminate | OK | This parameter displays whether an open, short to voltage or ground exists in the line pressure control (PC) solenoid valve feedback signal circuit. The scan tool displays OK, Open Short to Volts, Short to GND, or Indeterminate. |
| Line PC Sol. Pressure Com. | KPa (psi) | Varies | This parameter displays results in kPa (psi). |
| Output Shaft Direction | Forward / Reverse / Unknown / Invalid | Unknown | This parameter displays the direction of the transmission output shaft speed sensor. The scan tool displays Forward/Reverse/Unknown/Invalid. |
| Pass Counter | Counts | 0-255 | This parameter displays the number of ignition cycles with a pass reported and no failures reported since the first ignition cycle with a failure reported. |
| PC Sol. 2 CKT Status | OK, Open, Short to GND, Short to Volts, Indeterminate | OK | This parameter displays OK, Open, Short to GND, Short to Volts, or Indeterminate. |
| PC Sol. 2 Pressure Cmd. | Yes/No | Varies | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| PC Sol. 3 CKT Status | OK, Open, Short to GND, Short to Volts, Indeterminate | OK | This parameter displays OK, Open, Short to GND, Short to Volts, or Indeterminate. |
| PC Sol. 3 Pressure Cmd. | Yes/No | Varies | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| PC Sol. 4 CKT Status | OK, Open, Short to GND, Short to Volts, Indeterminate | OK | This parameter displays OK, Open, Short to GND, Short to Volts, or Indeterminate. |
| PC Sol. 4 Pressure Cmd. | Yes/No | Varies | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| PC Sol. 5 CKT Status | OK, Open, Short to GND, Short to Volts, Indeterminate | OK | This parameter displays OK, Open, Short to GND, Short to Volts, or Indeterminate. |
| PC Sol. 5 Pressure Cmd. | Yes/No | Varies | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| Shift Sol. 1 CKT Status | OK, Open, Short to GND, Short to Volts, Indeterminate | OK | This parameter displays OK, Open, Short to GND, Short to Volts, or Indeterminate. |
| Shift Solenoid 1 | On/Off | On | This parameter displays the commanded state of the reverse, 1st shift solenoid valve (S1). The scan tool displays On/Off. |
| Shift Sol. 2 CKT Status | OK, Open, Short to GND, Short to Volts, Indeterminate | OK | This parameter displays OK, Open, Short to GND, Short to Volts, or Indeterminate. |
| Shift Solenoid 2 | On/Off | On | This parameter displays the commanded state of the 2-3, 3-4 shift solenoid valve (S2). The scan tool displays On/Off. |
| TCM Temperature | °C (°F) | Varies | This parameter displays results in °C (°F). |
| TFP Switch 1 | HI/LOW | LOW | This parameter displays the state of the first clutch oil pressure switch. The scan tool displays HI/LOW. |
| TFP Switch 3 | HI/LOW | HI | This parameter displays the state of the 3rd clutch oil pressure switch. The scan tool displays HI/LOW. |
| TFP Switch 4 | HI/LOW | HI | This parameter displays the state of the 4th clutch oil pressure switch. The scan tool displays HI/LOW. |
| TFP Switch 5 | HI/LOW | HI | This parameter displays the state of the fifth clutch oil pressure switch. The scan tool displays HI/LOW. |
| Trans. Fluid Temp. | °C (°F) | Varies | This parameter displays the input signal of the transmission fluid temperature sensor. Transmission fluid temperature is high, 151°C (304°F), when signal voltage is low, 0 volt. Transmission fluid temperature is low, -40°C (-40°F), when signal voltage is high, 5 volt. |
| Transmission OSS | RPM | 0 RPM | This parameter displays the rotational speed of the transmission output shaft. The scan tool displays output shaft speed as revolutions per minute (RPM). |
| Vehicle Speed | Km/h (mph) | Varies | This parameter displays the rotational speed of the transmission output shaft. The scan tool displays output shaft speed as revolutions per minute (RPM). |
Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| Shift Solenoid 1 Shift Solenoid 2 | The TCM commands Shift Solenoid 1 and Shift Solenoid 2 ON and OFF. When the ignition is ON, and the engine is OFF, there are no limits to this control. The solenoid remains On until commanded OFF, and vice versa. When the output control is exited, the solenoid state is determined by the TCM. When the engine is running, the following control limits apply: If the engine is running, the message "Engine Running" appears on the scan tool display. |
| Line PC Solenoid | The scan tool is used to request pressure in increments of 207 kPa (30 psi) from 0-1862 kPa (0-270 psi). The TCM will then command the solenoid to achieve the requested pressure. When the ignition is ON, and the engine is OFF, the pressure request may be controlled within calibrated limits. There are no limits to the output control when the engine is OFF. When the engine is running, the following control limits apply: When the transmission range is Park or Neutral, the pressure request may be controlled within calibrated limits. The engine speed must be less than 1,500 RPM. If the engine speed is greater than 1,500 RPM, the message "TR in park/neutral and engine speed over 1,500 RPM" appears on the scan tool display. When the transmission range is not Park or Neutral, the requested pressure can only be controlled equal to or greater than the pressure determined by the TCM. The TCM does not allow a pressure to be selected that may cause damage to the transmission. If the requested pressure is less than allowed by the TCM, the message "Requested pressure for the Line PC Solenoid is too low" appears on the scan tool display. Transmission range DTCs must not be active. If a transmission range DTC is active, the message "Engine running with transmission DTC present" appears on the scan tool display. |
| PC Solenoid 2 PC Solenoid 3 PC Solenoid 4 PC Solenoid 5 | The TCM commands the pressure control solenoids in order to apply and release the clutches. The TCM commands the pressure control solenoids. The solenoid remains ON until commanded OFF, and vice versa. When the output control is exited, the solenoid state is determined by the TCM. When the ignition is ON, and the engine is OFF, there are no limits to this control. The solenoid remains ON until commanded OFF, and vice versa. When the output control is exited, the solenoid state is determined by the TCM. When the engine is running, the following control limits apply: If the engine is running, the message "Engine Running" appears on the scan tool display. Transmission range DTCs must not be active. If a transmission range DTC is active, the message "Engine running with transmission DTC present" appears on the scan tool display. |
Scan Tool Output Controls
Transmission Control Module Scan Tool Information (6L45/6L50/6L80/6L90)
The Transmission Control Module Scan Tool Data List contains all transmission related parameters that are available on the scan tool. The list is arranged in alphabetical order. A given parameter may appear in any one of the data lists, and in some cases may appear more than once, or in more than one data list in order to group certain related parameters together.
The values below represent a typical display recorded from a properly functioning system.
Only the parameters listed below are used/referenced in this manual for diagnosis. If a scan tool displays other parameters, those values are not recommended by General Motors for use in diagnosis.
If all values are within the expected value described below, refer to Symptoms - Automatic Transmission for diagnosis.
The scan tool values from a properly functioning transmission may be used for comparison with the transmission you are diagnosing. The values below represent a typical display recorded from a properly functioning system.
| Parameter | System State | Expected Value | Description |
|---|---|---|---|
| Operating Conditions: Engine at idle with the upper radiator hose hot and in closed loop operation, closed throttle, transmission in Park, accessories OFF, brake pedal not applied. | |||
| 1-2 Shift Time | Varies | Seconds | This parameter displays the actual time of the last adaptable 1-2 shift. The shift time is based on the gear ratio change after the commanded 1-2 shift. |
| 2-3 Shift Time | Varies | Seconds | This parameter displays the actual time of the last adaptable 2-3 shift. The shift time is based on the gear ratio change after the commanded 2-3 shift. |
| 3-4 Shift Time | Varies | Seconds | This parameter displays the actual time of the last adaptable 3-4 shift. The shift time is based on the gear ratio change after the commanded 3-4 shift. |
| 4-5 Shift Time | Varies | Seconds | This parameter displays the actual time of the last adaptable 4-5 shift. The actual shift time is obtained by measuring the time required for the input shaft to decelerate from the previous ratio to the current ratio. |
| 5-6 Shift Time | Varies | Seconds | This parameter displays the actual time of the last 5-6 shift. The shift time is base on the gear ratio change after the commanded 5-6 shift. |
| Brake Switch | Released | Applied/Released | This parameter displays the status of the brake switch circuit input. Applied indicates a zero voltage input, brake pedal applied. Released indicates a voltage input, brake pedal released. The scan tool displays Applied or Released. |
| Calc. Throttle Position | Varies | % | This parameter displays a calculated value, which is determined by the accelerator pedal position and the actual throttle position, used to optimize transmission controls. It represents the driver's intended request for torque or acceleration. The range is 0-100 percent, where 0 percent represents an idle or coast request and 100 percent represents a request for wide open throttle (WOT). |
| Commanded Gear | 1 | 1, 2, 3, 4 or 1, 2, 3, 4, 5 or Park/Neutral, Reverse, 1, 2, 3, 4, 5 | This parameter displays the current commanded state of the shift solenoid valves. The scan tool displays 1, 2, 3, 4 or 5 |
| Driver Shift Control | Inactive | Active/Inactive | This parameter displays Active or Inactive. The scan tool displays Active when the gear selector is in the sport (S) position, which enables TAP shift. The scan tool displays Inactive when the gear selector is not in the S position, TAP shift disabled. |
| Driver Shift Request | None | Upshift/ Downshift/ None/ Invalid | This parameter displays the current request from the TAP Shift System. This parameter will display up shift, downshift or invalid depending on the amount of voltage measured at the remote shift selector input and also will display none when there is no request. |
| ECT | Varies | °C (°F) | This parameter displays the input signal from the engine coolant temperature (ECT) sensor. ECT is high at 151°C (304°F) when the signal voltage is low (0 V). ECT is low at -40°C (-40°F) when the signal voltage is high (5 V). |
| Engine Speed | Varies | RPM | This parameter displays the rotational speed of the engine expressed as revolutions per minute. |
| Engine Torque | Varies | N.m (lb ft) | This parameter displays a calculated value based on engine load, throttle position, mass air flow, and other engine inputs. This parameter is accurate to within 20 N.m 15 lb ft of actual measured engine torque. |
| Gear Ratio | Varies | Ratio | This parameter displays the actual transmission gear ratio. The scan tool displays the gear ratio calculated from the automatic transmission input shaft speed sensor (AT ISS) and the automatic transmission output shaft speed sensor (AT OSS) inputs. |
| High Side Driver 1 | Enabled | Enabled/Disabled | This parameter displays the High Side Driver 1 status on the scan tool. When the High Side Driver 1 is commanded OFF this displays Disabled, when the High Side Driver 1 is commanded ON this displays Enabled. |
| High Side Driver 1 CKT Status | OK or Indeterminate | OK, Open/Short to Volts, Short to GND, Indeterminate | This parameter displays the High Side Driver 1 circuit status on the scan tool. If the voltage is low when the solenoid is commanded OFF, the scan tool will display Open/Short to GND. If the voltage is high when the solenoid is commanded ON, the scan tool will display Short to Volts. If no circuit fault is present the scan tool will display OK. |
| Ignition Voltage | 12 to 14 volts | Volts | This parameter displays the system voltage measured at the ignition feed. |
| IMS | Park | Park-Drive 1, Open, Invalid | This parameter displays PARK, PARK/REVERSE, REVERSE, REVERSE/NEUTRAL, NEUTRAL, NEUTRAL/DRIVE 4, DRIVE 4, DRIVE 4/DRIVE 3, DRIVE 3, DRIVE 3/DRIVE 2, DRIVE 2, DRIVE 2/DRIVE 1, DRIVE 1 or INVALID. The IMS Range display represents a decoded status of the four inputs from the IMS. The combination of IMS inputs are used to determine what position the manual valve is in at any time. |
| IMS A/B/C/P | LOW/HI/HI/LOW | HI or LOW | This parameter displays the status of the four A/B/C/P inputs from the automatic transmission internal mode switch. HI indicates an ignition voltage signal and LOW indicates a 0 voltage signal. The scan tool will display HI/LOW, HI/LOW, HI/LOW, HI/LOW. |
| ISS/OSS Supply Voltage | OK | OK, Out of Range | This parameter displays OK, Out of Range. |
| Last Shift Time | Varies | Seconds | This parameter displays the actual time of the last up shift. This value is only accurate if the shift was adaptable. |
| PC Sol. 2 CKT Status | OK or Indeterminate | OK, Open/Short to GND, Short to Volts, Indeterminate | This parameter displays OK, Open/Short to GND, Short to Volts. |
| PC Sol. 2 Pressure Comm | No | Yes/No | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| PC Sol. 3 CKT Status | OK or Indeterminate | OK, Open/Short to GND, Short to Volts, Indeterminate | This parameter displays OK, Open/Short to GND, Short to Volts. |
| PC Sol. 3 Pressure Comm | Yes | Yes/No | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| PC Sol. 4 CKT Status | OK or Indeterminate | OK, Open/Short to GND, Short to Volts, Indeterminate | This parameter displays OK, Open/Short to GND, Short to Volts. |
| PC Sol. 4 Pressure Comm | No | Yes/No | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| PC Sol. 5 CKT Status | OK or Indeterminate | OK, Open/Short to GND, Short to Volts, Indeterminate | This parameter displays OK, Open/Short to GND, Short to Volts. |
| PC Sol. 5 Pressure Comm | No | Yes/No | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| Shift Sol. 1 CKT Status | OK or Indeterminate | OK, Open/Short to GND, Short to Volts, Indeterminate | This parameter displays OK, Open/Short to GND, Short to Volts, or Indeterminate. |
| Shift Solenoid 1 | ON | On/Off | This parameter displays the commanded state of the reverse, 1st shift solenoid valve (S1). The scan tool displays On/Off. |
| Shift Sol. 2 CKT Status | OK or Indeterminate | OK, Open/Short to GND, Short to Volts, Indeterminate | This parameter displays OK, Open/Short to GND, Short to Volts, or Indeterminate. |
| Shift Solenoid 2 | ON | On/Off | This parameter displays the commanded state of the 2-3, 3-4 shift solenoid valve (S2). The scan tool displays On/Off. |
| TCC PC Sol. Pressure Comm | No | Yes/No | This parameter displays Yes or No. Yes, solenoid pressure is commanded. No, solenoid pressure is not commanded. |
| TCC Slip Speed | Varies | RPM | This parameter displays the difference between transmission input speed and engine speed. A negative value indicates that the engine speed is less than the input speed, deceleration. A positive value indicates that the engine speed is greater than the input speed, acceleration. A value of zero indicates that the engine speed is equal to the input speed, TCC applied. |
| TCM Temperature | Varies | °C (°F) | This parameter displays results in °C (°F). |
| TFP Switch 1 | HI | HI/LOW | This parameter displays the state of the first clutch oil pressure switch. The scan tool displays HI/LOW. |
| TFP Switch 3 | LOW | HI/LOW | This parameter displays state of the 3rd clutch oil pressure switch. The scan tool displays HI/LOW. |
| TFP Switch 4 | LOW | HI/LOW | This parameter displays state of the 4th clutch oil pressure switch. The scan tool displays HI/LOW. |
| TFP Switch 5 | LOW | HI/LOW | This parameter displays state of the fifth clutch oil pressure switch. The scan tool displays HI/LOW. |
| Tow/Haul Mode (If equipped) | Inactive | Active/Inactive | This parameter displays ACTIVE when the transmission is operating in the tow/haul mode. In this mode the transmission control module (TCM) extends the length of time between upshifts and elevates transmission line pressure. Shift quality and TCC scheduling are also affected during tow/haul mode operation. The scan tool displays ACTIVE or INACTIVE. |
| Trans. Fluid Temp. | Varies | °C (°F) | This parameter displays the input signal of the transmission fluid temperature sensor. Transmission fluid temperature is high 151°C (304°F) when signal voltage is low, 0 V, and transmission fluid temperature is low -40°C (-40°F) when signal voltage is high, 5 V. |
| Transmission ISS | Varies | RPM | This parameter displays the rotational speed of the transmission input shaft. The scan tool displays input shaft speed is revolutions per minute. |
| Transmission OSS | 0 | RPM | This parameter displays the rotational speed of the transmission output shaft expressed as revolutions per minute. |
Scan Tool Data Parameters
| Output Control | Description |
|---|---|
| High Side Driver 1 | The TCM commands the driver for the solenoid voltage supply ON and OFF. When the ignition is ON, and the engine is OFF, there are no limits to this control. High side drivers may not be commanded ON and OFF with the scan tool if the engine is running. |
| Line PC Solenoid | The scan tool is used to request pressure in increments of 200 kPa (30 psi) from 200-2000 kPa (30-290 psi). The TCM will then command the line PC solenoid to achieve the requested increment. When the ignition is ON, and the engine is OFF, the pressure request may be controlled within calibrated limits. There is a limit to the output control of 200 kPa (290 psi) when the engine is OFF. If the request is above specified amount, the message "Request override current out of range" will display. When the engine is running, the following control limits apply: When the transmission range is Park or Neutral, the pressure request may be controlled within calibrated limits. The engine speed must be less than 1,500 RPM. If the engine speed is greater than 1,500 RPM, the message "TR in park/neutral and engine speed over 1,500 RPM" appears on the scan tool display. When the transmission range is not Park or Neutral, the requested pressure can only be controlled equal to or greater than the pressure determined by the TCM. The TCM does not allow a pressure to be selected that may cause damage to the transmission. If the requested pressure is less than allowed by the TCM, the message "Requested pressure for the Line PC Solenoid is too low" appears on the scan tool display. Transmission range DTCs must not be active. If a transmission range DTC is active, the message "Engine running with transmission DTC present" appears on the scan tool display. |
| PC Solenoid 2 Command | The TCM commands the pressure control solenoid in order to apply or release the clutches. When the ignition is ON, and the engine is OFF, there are no limits to this control. The solenoid remains ON until commanded OFF, and vice versa. When the output control is exited, the solenoid state is determined by the TCM. When the engine is running, the following control limits apply: The transmission range must be in Park or Neutral. If the transmission range is not Park or Neutral, the message "Engine running and transmission range is not Park/Neutral" appears on the scan tool display. The solenoid remains ON until commanded OFF, and vice versa. When the output control is exited, the solenoid state is determined by the TCM. Transmission range DTCs must not be active. If a transmission range DTC is active, the message "Engine running with transmission DTC present" appears on the scan tool display. |
| PC Solenoid 3 Command | |
| PC Solenoid 4 Command | |
| PC Solenoid 5 Command | |
| Service Clean Procedure | The scan tool is used to start and stop the transmission cleaning procedure algorithm. The following control limits apply: The engine must be running. The message "Engine not Running" will appear on the scan tool if this control is attempted without the engine running. There cannot be active transmission DTCs. The message "Transmission Fault present" will appear on the scan tool if this control is attempted with transmission DTCs active. The transmission range must be Park or Neutral. The message "Transmission not in PARK or NEUTRAL" will appear on the scan tool if this control is attempted with the transmission in any range other than Park or Neutral. The vehicle speed cannot exceed 8 km/h (5 mph). The message "Vehicle Speed too high" will appear on the scan tool if this control is attempted with a vehicle speed greater than 8 km/h (5 mph). The engine speed cannot exceed 2500 RPM. The message "Engine Speed too high" will appear on the scan tool if this control is attempted with an engine speed greater than 2500 RPM. The transmission oil temperature must be at a normal operating temperature. The message "Transmission oil temperature out of range" will appear on the scan tool if this control is attempted without a transmission oil temperature between 70-110°C (158-230°F). |
| Service Fast Learn Adapts | The scan tool is used to start and stop the transmission Fast Learn Adapt algorithm. The following control limits apply: The engine must be running. The message "Engine not Running" will appear on the scan tool if this control is attempted without the engine running. There cannot be active transmission DTCs. The message "Transmission Fault present" will appear on the scan tool if this control is attempted with transmission DTCs active. |
| Shift Solenoid 1 | The TCM commands Shift Solenoid 1 and Shift Solenoid 2 ON and OFF. When the ignition is ON, and the engine is OFF, there are no limits to this control. The solenoid remains ON until commanded OFF, and vice versa. When the output control is exited, the solenoid state is determined by the TCM. When the engine is running, the following control limits apply: The transmission range must be in Park or Neutral. If the transmission range is not Park or Neutral, the message "Engine running and transmission range is not Park/Neutral" appears on the scan tool display. The solenoid remains ON until commanded OFF, and vice versa. When the output control is exited, the solenoid state is determined by the TCM. Transmission range DTCs must not be active. If a transmission range DTC is active, the message "Engine running with transmission DTC present" appears on the scan tool display. |
| Shift Solenoid 2 | |
| TCC PC Solenoid Command | The transmission control module (TCM) commands the torque converter clutch pressure control (TCC PC) solenoid pressure in order to apply and release the TCC. When the ignition is ON, and the engine is OFF, there are no limits to this control. The solenoid remains ON until commanded OFF and vice versa. When the engine is running, the following control limits apply: If the transmission range is Park, and the transmission is in hot mode, the TCC PC solenoid may not be commanded OFF. If the solenoid is requested OFF, the message "TCC OFF command disabled in Hot Mode" appears on the scan tool display. The TCC PC solenoid may not be commanded OFF for more than a calibrated amount of time. If the solenoid is commanded OFF, for a certain amount of time, the message "TCC OFF time has been exceeded" appears on the scan tool display. |
Scan Tool Output Controls
See also:
• Diagnostic Trouble Code (DTC) List - Vehicle
• Symptoms - Hybrid Controls
• Jump Assist
• Communication Interface Module Programming and Setup
• Diagnostic System Check - Vehicle
• Symptoms - Hybrid Energy Storage
• High Voltage System Diagnosis (EL-48458)
• Antilock Brake System Automated Bleed
• Antilock Brake System Automated Bleed
• DTC P2797
• Symptoms - Automatic Transmission
• Symptoms - Automatic Transmission