Control Module References
| Control Module | Schematic | Repair Instruction | Programming and Setup |
|---|---|---|---|
| Diagnostic System Check - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle Symptoms - Vehicle | |||
| Audio Amplifier | Radio/Navigation System Schematics | Amplifier Replacement (Envoy XL, TrailBlazer EXT) or Amplifier Replacement (Rainier, Envoy, TrailBlazer) | This device requires no programming or setup |
| Body Control Module | Body Control System Schematics | Body Control Module Replacement | Body Control Module Programming and Setup |
| Communications Interface Module (OnStar®) | OnStar Schematics | Communication Interface Module Replacement (TrailBlazer EXT, Envoy XL) or Communication Interface Module Replacement (TrailBlazer, Envoy, Rainier) | Communication Interface Module Programming and Setup |
| Digital Radio Receiver (DRR) | Radio/Navigation System Schematics | Digital Radio Receiver Replacement | Digital Radio Receiver Setup after DRR replacement |
| Electronic Brake Control Module (ABS) | Antilock Brake System Schematics | Electronic Brake Control Module Replacement | Electronic Brake Control Module Programming and Setup |
| Engine Control Module | Engine Controls Schematics for the 5.3L engine or Engine Controls Schematics for the 6.0L engine | Engine Control Module Replacement for the 5.3L engine or Engine Control Module Replacement for the 6.0L engine | Engine Control Module Programming and Setup |
| Garage Door Opener (GDO) | Remote Function Schematics | Garage Door Opener Replacement | Garage Door Opener Programming - Universal after GDO replacement |
| HVAC Control Module (Heating and Air Conditioning) | HVAC Schematics w/CJ2 or HVAC Schematics w/CJ3 | HVAC Control Module Replacement w/CJ2 or HVAC Control Module Replacement w/CJ3 | HVAC Control Module Programming and Setup |
| Inflatable Restraint Passenger Presence System | SIR Schematics | Inflatable Restraint Passenger Presence System Replacement - Front | |
| Inflatable Restraint Sensing and Diagnostic Module (Supplemental Inflatable Restraint) | SIR Schematics | Inflatable Restraint Sensing and Diagnostic Module Replacement | Inflatable Restraint Sensing and Diagnostic Module Programming and Setup |
| Inside Rearview Mirror | Inside Rearview Mirror Schematics | Rearview Mirror Replacement | Compass Calibration and Magnetic Variance after inside rearview mirror replacement |
| Instrument Panel Cluster (IPC) | Instrument Cluster Schematics | Instrument Cluster Replacement | Service Programming System (SPS) after IPC replacement |
| Liftgate Control Module | Body Control System Schematics | Liftgate Control Module Replacement | Liftgate Control Module Programming and Setup |
| Memory Seat Control Module (Driver Seat Module) | Driver Seat Schematics | Memory Seat Control Module Replacement | Memory Seat Calibration after MSM replacement |
| Powertrain Control Module (4.2L engine) | Engine Controls Schematics | Powertrain Control Module Replacement | Powertrain Control Module Programming and Setup |
| Radio | Radio/Navigation System Schematics | Radio Replacement | |
| Sunroof Motor/Actuator | Sunroof Schematics | Sunroof Motor/Actuator Replacement | Sunroof Motor/Actuator Initialization/Teach Process (Existing Motor) or Sunroof Motor/Actuator Initialization/Teach Process (New Motor) after sunroof motor/actuator replacement |
| Switch - Door Lock and Side Window - Driver (Driver Door Module) | Door Control Module Schematics | Refer to Service Programming System (SPS) after DDM replacement | |
| Switch - Door Lock and Side Window - Passenger (Passenger Door Module) | Door Control Module Schematics | Refer to Service Programming System (SPS) after PDM replacement | |
| Theft Deterrent Control Module | Theft Deterrent System Schematics | Theft Deterrent Control Module Programming and Setup | |
| Throttle Actuator Control Module | Engine Controls Schematics | Engine Control Module Programming and Setup | |
| Transfer Case Shift Control Module | Transfer Case Control Schematics for the NVG 126-NP4 transfer case or Transfer Case Control Schematics for the NVG 266-NP8 transfer case | Transfer Case Shift Control Module Replacement for the NVG 126-NP4 transfer case or Transfer Case Shift Control Module Replacement for the NVG 266-NP8 transfer case | |
| Transmission Control Module | Automatic Transmission Controls Schematics (4.2L) or Automatic Transmission Controls Schematics (5.3L/6.0L) | Transmission Control Module Replacement | Transmission Control Module Programming and Setup |
Control Module References
Service Programming System (SPS)
For step by step programming instructions, please refer to the Techline Information System (TIS) terminal.
Review the information below to ensure proper programming protocol.
| IMPORTANT | DO NOT program a control module unless you are directed by a service procedure or you are directed by a General Motors Corporation service bulletin. Programming a control module at any other time will not permanently correct a customer's concern. It is essential that the Tech 2 and the TIS terminal are both equipped with the latest software before performing service programming system (SPS). Some modules will require additional programming/setup events performed before or after programming. Some vehicles may require the use of a CANDi module for programming. Review the appropriate service information for these procedures. DTCs may set during programming. Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to NO. |
Ensure the following conditions are met before programming a control module
- Vehicle system voltage There is not a charging system concern. All charging system concerns must be repaired before programming a control module. Battery voltage is greater than 12 volts but less than 16 volts. The battery must be charged before programming the control module if the battery voltage is low. A battery charger is NOT connected to the vehicle's battery. Incorrect system voltage or voltage fluctuations from a battery charger, may cause programming failure or control module damage. Turn OFF or disable any system that may put a load on the vehicle's battery, such as the following components: Twilight sentinel Interior lights Daytime running lights (DRL)-Applying the parking brake, on most vehicles, disables the DRL system. Refer to the Owner's manual. Heating, ventilation and air conditioning (HVAC) systems Engine cooling fans, radio, etc.
- The ignition switch must be in the proper position. The Tech 2 prompts you to turn ON the ignition, with the engine OFF. DO NOT change the position of the ignition switch during the programming procedure, unless instructed to do so.
- Make certain all tool connections are secure, including the following components and circuits: The RS-232 communication cable port The connection at the data link connector (DLC) The voltage supply circuits
- DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control module damage may occur.
- DO NOT turn OFF the ignition if the programming procedure is interrupted or unsuccessful. Ensure that all control module and DLC connections are secure and the TIS terminal operating software is up to date. Attempt to reprogram the control module. If the control module cannot be programmed, replace the control module.
Audio Amplifier Programming and Setup
There is no setup procedure for this module.
Programming the BCM
| IMPORTANT | After the procedure is completed, the personalization settings of the BCM are set to a default setting. Inform the customer that the personalization must be set again. |
Perform the special function for BCM "Request BCM Info. for SPS" or select Service Programming Systems and then refer to Service Programming System (SPS) .
Programming Theft Deterrent System Components
| IMPORTANT | This procedure has to be performed only for vehicles equipped with Passlock System. |
If the 10 minute learn procedure is chosen, perform the special function for BCM "Request VTD Info. for SPS" or select Service Programming Systems and then refer to Programming Theft Deterrent System Components . If the Programming Theft Deterrent System Components procedure is not performed after a BCM replacement, one of the following conditions will occur
- The vehicle will not be protected against theft by the Passlock System.
- The engine will not crank or start.
This procedure also needs to be performed when replacing the passlock sensor or when replacing the PCM with one used before in a different vehicle.
Relearn Restraints ID
Perform the special function for BCM "Setup SDM Serial Number in BCM" with the scan tool.
This procedure may also need to be performed when replacing the SDM.
| IMPORTANT | After programming, perform the following to avoid future misdiagnosis |
- Turn the ignition OFF for 10 seconds.
- Connect the scan tool to the data link connector.
- Turn the ignition ON with the engine OFF.
- Use the scan tool in order to retrieve history DTCs from all modules.
- Clear all history DTCs.
Communication Interface Module Programming and Setup
Each of the following service procedures require programming or setup procedures to be performed on the communication interface module.
Digital Radio Receiver Programming and Setup
Each of the following service procedures require programming or setup procedures to be performed on the digital radio receiver.
Door Control Module Programming and Setup
After replacing the driver door module (DDM) or the passenger door module (PDM), perform the programing procedure. Refer to Service Programming System (SPS) .
EBCM Reprogramming
If the EBCM needs to be reprogrammed, refer to Service Programming System (SPS) .
Engine Control Module Programming and Setup
The following service procedures require either a programming or a setup event performed for a complete repair.
ECM Reprogramming
- If the ECM needs to be reprogrammed, refer to «Service Programming System (SPS)»(ref-277750-S23500018922008011800000) .
- Engine Oil Life Remaining-When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was reprogrammed.
- Transmission Fluid Life Remaining-When available, use a scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded before the module was reprogrammed.
Garage Door Opener Programming and Setup
The garage door opener (GDO) programming and setup procedures must be performed after replacement. Refer to Garage Door Opener Programming - Universal on how to program the GDO.
HVAC Control Module Programming and Setup
Each of the following service procedures may require programming or setup procedures to be performed on the HVAC control module or HVAC actuators.
HVAC Control Module Reprogramming
Do not reprogram the HVAC control module, unless directed by a service procedure or a service bulletin.
Reprogram HVAC Control Module-Refer to Service Programming System (SPS) .
Instrument Cluster Programming and Setup
The instrument panel cluster (IPC) must be setup using the service programming system (SPS). Refer to Service Programming System (SPS) .
Liftgate Control Module Programming and Setup
The following procedure must be performed when replacing the liftgate module
Service Programming System (SPS) .
Transmitter Programming
Memory Seat Control Module Programming and Setup
After replacing the memory seat module, the calibration procedure must be performed. Refer to Memory Seat Calibration .
Passenger Presence System (PPS) Rezeroing Procedure
Important
- Before rezeroing the passenger presence system (PPS), the front passenger seat must be completely empty of all items. The presence of any items on the front passenger seat will affect the calibration and operation of the PPS.
- When rezeroing the PPS, the instrument panel cluster (IPC) and dash lights will begin dimming on and off. This is normal operation during the rezeroing procedure and does not indicate additional system faults.
- Empty the front outboard passenger seat.
- Verify that all supplemental inflatable restraint (SIR) and PPS components, connectors and connector position assurances (CPAs) are properly connected and mounted.
- Install a scan tool.
- Turn ON the ignition, with the engine OFF.
- Use the scan tool in order to clear the SIR and PPS DTCs.
- With a scan tool, request the PPS rezeroing procedure.
- Initiate the PPS rezeroing procedure. The PPS will illuminate both PASSENGER AIR BAG ON and OFF indicators located on the rearview mirror until the rezeroing procedure has been completed. When the rezeroing procedure has been successfully completed, the PPS will display the current system status at the rearview mirror indicator. If the rezeroing procedure was unsuccessful both PASSENGER AIR BAG ON and OFF indicators, located on the rearview mirror, will alternate from no illumination to full illumination in 1-second intervals, for 5 seconds. The PPS will treat an unsuccessful rezero attempt as a system fault.
- If the rezeroing procedure was unsuccessful, repeat this procedure. Due to the communication status between the SDM and the PPS module, this procedure may have to be repeated until a successful rezero attempt has been achieved.
- After the PPS has been successfully rezeroed, perform the «Diagnostic System Check - Vehicle»(ref-277748-S10358011192008011800000) .
Powertrain Control Module Programming and Setup
The following service procedures require either a programming or a setup event be performed for a complete repair.
PCM Reprogramming
- If the PCM needs to be reprogrammed, refer to «Service Programming System (SPS)»(ref-277750-S23500018922008011800000) .
- Engine Oil Life Remaining-When available, use a scan tool to reset the Engine Oil Life Remaining back to the original percentage recorded before the module was reprogrammed.
- Transmission Fluid Life Remaining-When available, use a scan tool to reset the Transmission Fluid Life Remaining back to the original percentage recorded before the module was reprogrammed.
Radio Programming and Setup
Each of the following service procedures requires programming or setup procedures to be performed on the radio.
With RPO UM8
If the navigation radio is replaced and a theft locked condition exists, the following procedure must be performed
Perform the Radio Setup (With RPO UM8) .
Sunroof Control Module Programming and Setup
After replacing the sunroof actuator motor assembly, the calibration procedure must be performed. Refer to Sunroof Motor/Actuator Initialization/Teach Process (Existing Motor) or Sunroof Motor/Actuator Initialization/Teach Process (New Motor) .
Theft Deterrent Control Module Programming and Setup
| IMPORTANT | When replacing a theft deterrent control module with a GM Service Parts Operation (SPO) replacement part, the procedure to set up a new theft deterrent control module must be performed prior to the 10 Minute Re-Learn Procedure. |
Tools Required
Tech 2 diagnostic scan tool
Procedure to Set Up a New Theft Deterrent Control Module
Use this procedure only if replacing the theft deterrent control module with a GM SPO replacement part.
- Connect the Tech 2 diagnostic scan tool to the vehicle.
- Turn ON the ignition, with the engine OFF.
- With the scan tool, select Setup New TDM in the Theft Deterrent Module, Special Functions data list.
- Follow the scan tool on screen instructions.
| IMPORTANT | When replacing a theft deterrent control module with a GM SPO replacement part, the module will learn keys immediately. The existing PCM however, must learn the new fuel continue password when the theft deterrent control module is replaced. When replacing a powertrain control module (PCM) with a GM SPO replacement part, after programming, these modules will learn the incoming fuel continue password immediately upon receipt of a password message. Once a password message is received and a password is learned, a relearn procedure must be performed to change this password again. A PCM which has been previously installed in another vehicle will have learned the fuel continue password of the other vehicle theft deterrent control module and will require performing the 10 Minute Re-Learn Procedure to learn the fuel continue password of the current vehicle theft deterrent control module. When performing the 10 Minute Re-Learn Procedure, all previously learned keys will be erased from the theft deterrent control module memory. Additional keys may be learned immediately after the 10 Minute Re-Learn Procedure. Refer to Adding Keys . When performing the 10 Minute Re-Learn Procedure, 2 master passkey III+ (PK3+) keys are required. If a gray valet key is learned first, the theft deterrent control module will not allow additional keys to be learned. |
- Tech 2 diagnostic scan tool
- Techline Terminal with current Service Programing System (SPS) software
10 Minute Re-Learn Procedure
Use this procedure after replacing any of the following components
- The passkey III+ (PK3+) keys
- The theft deterrent control module
- The PCM, see Important above
| IMPORTANT | If replacing a theft deterrent control module with a GM SPO replacement part, ensure the procedure to set up a new theft deterrent control module has been performed prior to the 10 Minute Re-Learn Procedure. |
- Connect the Tech 2 diagnostic scan tool to the vehicle.
- With the scan tool, select Request Info. under Service Programing System and follow the scan tool on screen instructions.
- Disconnect the scan tool from the vehicle and connect it to a Techline Terminal with current Service Programing System (SPS) software.
- On the Techline Terminal, select Service Programming Systems and follow the Techline Terminal on screen instructions.
- Disconnect the scan tool from the Techline Terminal and re-connect it to the vehicle.
- With a master passkey III+ (PK3+) key, turn ON the ignition, with the engine OFF.
- With the scan tool, select Program ECU under Service Programing System.
- At this point, the scan tool must remain connected for the duration of the 10 Minute Re-Learn Procedure.
- Observe the SECURITY telltale or the scan tool on screen timer. After approximately 10 minutes the scan tool timer will expire and/or the telltale will turn OFF. The vehicle is now ready to relearn the key information and/or passwords on the next ignition switch transition from OFF to CRANK.
- Turn OFF the ignition and wait 5 seconds.
- With a master passkey III+ (PK3+) key, start the vehicle. The theft deterrent control module has now learned the key transponder information and the PCM has now learned the fuel continue password.
- Turn OFF the ignition and wait 15 seconds minimum.
- With a second master passkey III+ (PK3+) key, start the vehicle. The theft deterrent control module has now learned the second master passkey III+ (PK3+) key transponder information.
- Learning additional keys, if required. Refer to «Adding Keys»(ref-277774-S16401432012008011800000) .
- With the scan tool, clear any DTCs.
Transmission Control Module Programming and Setup
The following service procedures require either a programming or a setup event be performed for a complete repair.
TCM Reprogramming
If the TCM is reprogrammed, TCM Reprogramming must be performed. Refer to Service Programming System (SPS) .
Ensure the following conditions exist in order to prepare for TCM programming or reprogramming
- The battery is fully charged.
- The ignition switch is in the RUN position.
- The Techline equipment cable connection at the data link connector (DLC) is secure.
Program the TCM using the latest software matching the vehicle. Refer to up-to-date Techline equipment user instructions.
If the TCM fails to program, proceed as follows
- Ensure the TCM connection is good.
- Inspect the Techline equipment for the latest software version.
- Attempt to program the TCM. If the TCM still cannot be programmed properly, replace the TCM.
TCM Setup
This device requires no setup.