Strategy Based Diagnosis
The goal of Strategy Based Diagnostics is to provide guidance when you create a plan of action for each specific diagnostic situation. Following a similar plan for each diagnostic situation, you will achieve maximum efficiency when you diagnose and repair vehicles. Although each of the Strategy Based Diagnostics boxes is numbered, you are not required to complete every box in order to successfully diagnose a customer concern. The first step of your diagnostic process should always be, verify the Customer Concern box. The final step of your diagnostic process should be Repair and verify the Fix box 7. Refer to the following chart for the correct Strategy Based Diagnostics.
Scheme 26
| Callout | Component Name |
|---|---|
| 1 | Verify the Customer Concern: The first part of this step is to obtain as much information as possible from the customer. Are there aftermarket accessories on the vehicle? When does the condition occur? Where does the condition occur? How long does the condition last? How often does the condition occur? In order to verify the concern, the technician should be familiar with the normal operation of the system and refer to the owner or service manual for any information needed. |
| 2 | Preliminary Checks: Conduct a thorough visual inspection. Review the service history. Detect unusual sounds or odors. Gather diagnostic trouble code (DTC) information in order to achieve an effective repair. |
| 3 | Perform Published Diagnostic System Check: The Diagnostic System Check verifies the proper operation of the system. This will lead the technician in an organized approach to diagnostics. |
| 4 | Check Bulletins, Recalls and Preliminary Information (PI)s. |
| 5.1 | Stored DTCs: Follow the designated DTC in order to make an effective repair. |
| 5.2 | Symptom No DTC: Select the appropriate symptom. Follow the diagnostic steps or suggestions in order to complete the repair. |
| 5.3 | No Published Diagnostics: Analyze the Concern. Develop a plan for the diagnostics. The service manual schematics will help you to see system power, ground, input and output circuits. You can also identify splices and other areas where multiple circuits are tied together. Look at component locations to see if components, connectors or harnesses may be exposed to extreme temperature, moisture, road salt or other corrosives battery acid, oil or other fluids. Utilize the wiring diagrams, system description and operation, and system circuit description. |
| 5.4 | Intermittents: An intermittent condition is one that does not occur continuously and will occur when certain conditions are met. Generally, intermittents are caused by faulty electrical connections and wiring, malfunctioning components, electromagnetic/radio frequency interference, and aftermarket equipment. Combine technician knowledge with efficient use of the available service information. Evaluate the symptoms and conditions described by the customer. Use a check sheet or other method in order to identify the component. Follow the suggestions for intermittent diagnosis found in the service manual. A scan tool and a digital multimeter may have data capturing capabilities that can assist in detection of intermittents. |
| 5.5 | Vehicle Operates as Designed: This condition exists when the vehicle is found to operate normally. The condition described by the customer may be normal. Compare with another like vehicle that is operating normally under the same conditions described by the customer. Explain your findings and the operation of that system to the customer. |
| 6 | Re-examine the Concern: If a technician cannot successfully find or isolate the concern, a re-evaluation is necessary. Re-verify the concern. The concern could be an intermittent or normal condition. |
| 7 | Repair and Verify Fix: After isolating the cause, make the repairs and validate for the correct operation. Verify that the symptom has been corrected, which may involve road testing the vehicle. |
Diagnostic Procedure Instructions
The following is an overview of instructions for all 16 categories which may be included in a diagnostic procedure.
Diagnostic Instructions
A link to the Diagnostic System Check - Vehicle is provided here. This procedure should be performed prior to performing other diagnostic procedures, as this prevents misdiagnosis where there are integrated system dependencies.
A link to the Strategy Based Diagnosis is provided here. This provides an overview on how a technician should diagnose a vehicle.
A link to the Diagnostic Procedure Instructions is provided here. This information is an overview of instructions for all 16 categories which may be included in a diagnostic procedure.
DTC Descriptor
Describes what DTCs are diagnosed in this procedure. The DTC number, with Symptom Description when applicable, and descriptor are written out.
Diagnostic Fault Information
The diagnostic Fault Information table identifies each circuit that makes up an electrical subsystem and the associated circuit faults. DTCs and symptoms are listed in the table for all circuit fault modes. This information can be used to diagnose an electrical fault, or as a quick visual aid showing how the different symptoms and DTCs apply for the subsystem being diagnosed.
Even though all the DTCs and symptoms are shown in this table it does not mean they will all be diagnosed in the same procedure.
An example table from an engine coolant temperature (ECT) procedure
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| ECT Sensor Signal | P0117 | P0118 | P0118 | P0125 P0128 |
| ECT Low Reference | P0118 | P0118 | P0125 P0128 |
Diagnostic Procedure Instructions
Typical Scan Tool Data
The Typical Scan Tool Data table identifies a scan tool data parameter and its value in reference to potential circuit faults.
An example table from an ECT procedure
| Circuit | Short to Ground | Open | Short to Voltage |
|---|---|---|---|
| Operating Conditions: Engine Running Parameter Normal Range: -32 to +130°C (-26 to +275°F) | |||
| ECT Signal | 40°C (-40°F) | 140°C (284°F) | 40°C (-40°F) |
| Low Reference | 40°C (-40°F) | 40°C (-40°F) 1 | |
| 1 Internal ECM damage may occur if shorted to B+ | |||
ECT Sensor Temperature - PCM
Circuit/System Description
Circuit/System Description identifies how a circuit/system normally functions.
Conditions for Running the DTC
Conditions for Running the DTC, identifies what conditions must be present to allow the diagnostic to run.
Conditions for Setting the DTC
Conditions for Setting the DTC, identifies the condition(s) that must be present in order to fail the diagnostic and when to set the DTC.
Action Taken When the DTC Sets
Actions Taken When the DTC sets, identifies the default actions taken when a control module sets a DTC.
Conditions for Clearing the DTC
Conditions for Clearing the DTC, identifies the conditions that must be met in order to clear the DTC.
Diagnostic Aids
Diagnostic Aids are suggestions which explain other methods to diagnose the condition. It also provides unique information about the system used to assist the technician in finding and repairing a vehicle condition.
Reference Information
Reference Information includes links providing additional information for the diagnostic procedure.
For example
- Schematic Reference
- Connector End View Reference
- Description and Operation
- Electrical Information Reference
- DTC Type Reference
- Scan Tool Reference
- Special Tools Required
Circuit/System Verification
The diagnostic format does not force a technician to any of the 3 diagnostic categories (Circuit/System Verification, Circuit/System Testing and Component Testing). However, performing the Circuit/System Verification category first, aids in determining if a vehicle condition is current. This category also serves to route the technician to another diagnostic procedure which should be performed first; for example, a DTC with a higher priority.
Circuit/System Verification is a non-intrusive procedure outlining how to verify that a system or a portion of a system is functioning correctly. During the verification process, the vehicle is kept intact and tested as a complete system. This verification is used to assist the technician in determining whether a condition is current or intermittent. When a condition is determined to be intermittent, a technician can use the link in Electrical Information Reference: Testing for Intermittent Conditions and Poor Connections .
The technician should be able to identify if the fault is occurring on the input circuit - signal or on the output circuit - control when applicable. The technician will need to decide from the verification results if the system is working correctly or if further diagnosis needs to be performed in either Circuit/System Testing and/or Component Testing.
Circuit/System Testing
The diagnostic format does not force a technician to any of the 3 diagnostic categories (Circuit/System Verification, Circuit/System Testing and Component Testing). However, beginning with the Circuit/System Verification category aids in determining if a vehicle condition is current.
Circuit/System Testing is a step by step, positive-flow, testing sequence which allows the technician to perform each test step, in sequence, until a fault is detected. If the result of a test step is achieved, the normal flow is to proceed to the next step. If the result is NOT achieved, the repair arrow bullet will identify what actions need to take place.
Intrusive diagnostics are performed to locate the system fault. System harness connections are disconnected from the module or component to test individual circuit functions. The module or component will be used to assist in verifying the circuit function. When a test does not pass, the repair steps will indicate what circuit faults to test. For example, short to voltage, short to ground or open/high resistance.
When testing for individual circuit faults, the technician is expected to include terminal inspections such as connection surfaces and terminal tension at both the harness and component/module. Additionally, a technician can use the links in Electrical Information Reference: Testing for Intermittent Conditions and Poor Connections or Circuit Testing .
The control modules and components will also be diagnosed during these test steps. A retest of a control module or component should always be performed before replacement. For example, reconnect all components and modules and retest the system to verify the condition still exists before replacing modules or components.
Component Testing
The diagnostic format does not force a technician to any of the 3 diagnostic categories (Circuit/System Verification, Circuit/System Testing and Component Testing). However, beginning with the Circuit/System Verification category aids in determining if a vehicle condition is current.
Component Testing can offer static and/or dynamic component tests. These tests can be used to verify if a component is operating correctly to avoid unnecessary replacement.
Testing modules in this category will not be offered. In most cases, the module is used to verify the harness circuits in the Circuit/System Testing category and a retest of the module should always be performed before replacement.
Repair Procedures
Repair Instructions provides a link to Diagnostic Repair Verification . This link describes how to verify the vehicle is repaired.
All links to Repair or Replacement procedures are located here.
Repair Verification
Repair Verification describes how to verify the vehicle is repaired when additional instructions are needed beyond what is in Diagnostic Repair Verification.
Diagnostic Starting Point - Vehicle
Begin the system diagnosis with Diagnostic System Check - Vehicle . The Diagnostic System Check - Vehicle will provide the following information
- The identification of the control modules which are not communicating through the serial data circuit.
- The identification of any stored diagnostic trouble codes (DTCs) and their status.
The use of the Diagnostic System Check - Vehicle will identify the correct procedures to begin vehicle diagnosis. These must be performed before system DTC or symptom diagnosis.
Circuit Description
The ignition mode switch has 2 contact buttons. The upper button, with a circle indicator on it, starts the engine if the brake pedal is applied. The lower button has 2 indicators on it, O and ACC. This button cycles the ignition through the following modes
- OFF-This is the normal state upon entering the vehicle, and can also be reached from any other mode by depressing the button. The O indicator illuminates.
- Accessory-This mode can be reached from the OFF or Accessory modes by depressing the button. The ACC indicator illuminates.
- ON with the engine OFF-This state can be reached from the OFF or Accessory modes by depressing the button for about 5-6 seconds. The upper LED illuminates.
Test Description
The numbers below refer to the step numbers on the diagnostic table.
- 1: This step ensures that the battery and the vehicle primary power and ground systems are functioning correctly.
- 4: Lack of communication may be due to a particular malfunction of a serial data circuit. The information in Data Link References will provide a list of modules and the associated data network no communication diagnostic link.
| Step | Action | Yes | No |
|---|---|---|---|
| 1 | Perform the following preliminary inspections: Ensure that the battery is fully charged. Refer to Battery Inspection/Test . Ensure that the battery cables are clean and tight. Inspect for any open fuses. Refer to Power Distribution Schematics and Electrical Center Identification Views . Inspect the easily accessible systems or the visible system components for obvious damage or conditions that could cause the symptom. Ensure that the grounds are clean, tight, and in the correct location. Refer to Ground Distribution Schematics and Power and Grounding Component Views . Inspect for aftermarket devices that could affect the operation of the system. Refer to Checking Aftermarket Accessories . Search for applicable service bulletins. Did you find and correct the condition? | System OK | Go to Step 2 |
| 2 | Install a scan tool. Does the scan tool power up? | Go to Step 3 | Go to Scan Tool Does Not Power Up |
| 3 | Turn ON the ignition, with the engine OFF. Is the NO FOB DETECTED message displayed on the driver information center (DIC)? | Go to Key Fob Not Detected | Go to Step 4 |
| 4 | Turn ON the ignition, with the engine OFF. Attempt to establish communication with all of the control modules on the vehicle. Refer to Data Link References for the modules you should expect to observe. Does the scan tool communicate with all of the expected vehicle control modules? | Go to Step 5 | Go to Data Link References |
| 5 | Attempt to start the engine. Does the engine crank? | Go to Step 6 | Go to Symptoms - Engine Electrical |
| 6 | Attempt to start the engine. Does the engine start and idle? | Go to Step 7 | Go to Engine Cranks but Does Not Run for the 4.4L engine or Engine Cranks but Does Not Run for the 4.6L (LH2) engine |
| 7 | IMPORTANT: Do NOT clear any DTCs unless instructed by a diagnostic procedure. Diagnose the DTCs in the order that the DTCs appear on the scan tool or misdiagnosis may occur. If multiple powertrain DTCs are stored, diagnose the DTCs in the following order: Component level DTCs, such as sensor DTCs, solenoid DTCs, and relay DTCs. System level DTCs, such as misfire DTCs, evaporative emission (EVAP) system DTCs, and fuel trim DTCs. Advance to the List All DTCs screen on the scan tool.Does the scan tool display any DTCs? | Go to Diagnostic Trouble Code (DTC) List - Vehicle | Go to Step 8 |
| 8 | Is the customer concern with inspection/maintenance (I/M) testing? | Go to Inspection/Maintenance (I/M) System Check for the 4.4L engine or Inspection/Maintenance (I/M) System Check for the 4.6L (LH2) engine | Go to Symptoms - Vehicle |
| IMPORTANT |
|---|
| Do NOT clear any DTCs unless instructed by a diagnostic procedure. Diagnose the DTCs in the order that the DTCs appear on the scan tool or misdiagnosis may occur. If multiple powertrain DTCs are stored, diagnose the DTCs in the following order |
Diagnostic System Check - Vehicle
Action Taken When the DTC Sets - Type A
- The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
- The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze Frame/Failure Records.
Action Taken When the DTC Sets - Type B
- The control module illuminates the MIL on the second consecutive ignition cycle that the diagnostic runs and fails.
- The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.
- The following applies to misfire DTCs: If the control module detects a low level or an emission level misfire condition during 2 consecutive trips, the control module illuminates the MIL. If the control module detects a high level or catalyst damaging misfire, the control module flashes the MIL at a rate of once per second. If the control module detects a misfire during 2 non-consecutive trips, the stored conditions are compared with the current conditions. The control module illuminates the MIL when the following conditions occur: The engine load is within 20 percent of the previous test that failed. The engine speed is within 375 RPM of the previous test that failed. The engine coolant temperature is in the same range of the previous test that failed.
- The following applies to fuel trim DTCs: If the control module detects a fuel trim condition during 2 consecutive trips, the control module illuminates the MIL. If the control module detects a fuel trim condition during 2 non-consecutive trips, the stored conditions are compared with the current conditions. The control module illuminates the MIL when the following conditions occur: The engine load is within 20 percent of the previous test that failed. The engine speed is within 375 RPM of the previous test that failed. The engine coolant temperature is in the same range of the previous test that failed.
Conditions for Clearing the MIL/DTC - Type A or Type B
- The control module turns OFF the MIL after 4 consecutive ignition cycles that the diagnostic runs and does not fail.
- A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
- Clear the MIL and the DTC with a scan tool.
Action Taken When the DTC Sets - Type C
- The control module stores the DTC information into memory when the diagnostic runs and fails.
- The MIL will not illuminate.
- The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure Records.
- The driver information center, if equipped, may display a message.
Conditions for Clearing the DTC - Type C
- A current DTC Last Test Failed clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.
- Clear the DTC with a scan tool.
Diagnostic Trouble Code (DTC) List - Vehicle
This master DTC list include all applicable DTC in alphanumeric order with descriptor.
The GM LAN module on this vehicle also Support DTC Symptom information. Refer to DTC Symptom Description for additional information on DTC Symptom.
| DTC | DTC Descriptor | Module That Set the DTC | Diagnostic Procedure |
|---|---|---|---|
| B0001 | Vehicle Speed Information Circuit Range/Performance | Radio | DTC B0001 |
| B0005 | In Park Switch Circuit | CLCM | DTC B0005 |
| B0012 | Passenger Frontal Deployment Loop Stage 2 Resistance Low | SDM | DTC B0012, B0013, B0014, B0016, B0017, or B0018 |
| B0013 | Passenger Frontal Deployment Loop Stage 2 Open | SDM | DTC B0012, B0013, B0014, B0016, B0017, or B0018 |
| B0014 | Passenger Frontal Deployment Loop Stage 2 Voltage Out of Range | SDM | DTC B0012, B0013, B0014, B0016, B0017, or B0018 |
| B0016 | Passenger Frontal Deployment Loop Stage 1 Resistance Low | SDM | DTC B0012, B0013, B0014, B0016, B0017, or B0018 |
| B0017 | Passenger Frontal Deployment Loop Stage 1 Open | SDM | DTC B0012, B0013, B0014, B0016, B0017, or B0018 |
| B0018 | Passenger Frontal Deployment Loop Stage 1 Voltage Out of Range | SDM | DTC B0012, B0013, B0014, B0016, B0017, or B0018 |
| B0022 | Driver Frontal Deployment Loop Stage 1 Resistance Low | SDM | DTC B0022, B0024, B0026, B0042, B0043, or B0044 |
| B0024 | Driver Frontal Deployment Loop Stage 1 Voltage Out of Range | SDM | DTC B0022, B0024, B0026, B0042, B0043, or B0044 |
| B0026 | Driver Frontal Deployment Loop Stage 1 Open | SDM | DTC B0022, B0024, B0026, B0042, B0043, or B0044 |
| B0028 | Right Front Side Deployment Loop Resistance Low | SDM | DTC B0028, B0029, or B0030 |
| B0029 | Right Front Side Deployment Loop Open | SDM | DTC B0028, B0029, or B0030 |
| B0030 | Right Front Side Deployment Loop Voltage Out of Range | SDM | DTC B0028, B0029, or B0030 |
| B0040 | Left Front Side Deployment Loop Resistance Low | SDM | DTC B0040, B0041, or B0045 |
| B0041 | Left Front Side Deployment Loop Open | SDM | DTC B0040, B0041, or B0045 |
| B0042 | Driver Frontal Deployment Loop Stage 2 Resistance Low | SDM | DTC B0022, B0024, B0026, B0042, B0043, or B0044 |
| B0043 | Driver Frontal Deployment Loop Stage 2 Voltage Out of Range | SDM | DTC B0022, B0024, B0026, B0042, B0043, or B0044 |
| B0044 | Driver Frontal Deployment Loop Stage 2 Open | SDM | DTC B0022, B0024, B0026, B0042, B0043, or B0044 |
| B0045 | Left Front Side Deployment Loop Voltage Out of Range | SDM | DTC B0040, B0041, or B0045 |
| B0051 | Deployment Commanded | SDM | DTC B0051 |
| B0053 | Deployment Commanded with Loop DTC Present | SDM | DTC B0053 |
| B0057 | Right Front Pretensioner Deployment Loop Resistance Low | SDM | DTC B0057, B0058, or B0059 |
| B0058 | Right Front Pretensioner Deployment Loop Open | SDM | DTC B0057, B0058, or B0059 |
| B0059 | Right Front Pretensioner Deployment Loop Voltage Out of Range | SDM | DTC B0057, B0058, or B0059 |
| B0064 | Left Front Pretensioner Deployment Loop Resistance Low | SDM | DTC B0064, B0065, or B0066 |
| B0065 | Left Front Pretensioner Deployment Loop Open | SDM | DTC B0064, B0065, or B0066 |
| B0066 | Left Front Pretensioner Deployment Loop Voltage Out of Range | SDM | DTC B0064, B0065, or B0066 |
| B0077 | Driver Side Impact Sensor (SIS) Performance | SDM | DTC B0077, B0078, B0079, B0080, B0081, or B0082 |
| B0078 | Passenger Side Impact Sensor (SIS) Performance | SDM | DTC B0077, B0078, B0079, B0080, B0081, or B0082 |
| B0079 | Incorrect Driver Side Impact Sensor (SIS) Installed | SDM | DTC B0077, B0078, B0079, B0080, B0081, or B0082 |
| B0080 | Discard Driver Side Impact Sensor (SIS) | SDM | DTC B0077, B0078, B0079, B0080, B0081, or B0082 |
| B0081 | Incorrect Passenger Side Impact Sensor (SIS) Installed | SDM | DTC B0077, B0078, B0079, B0080, B0081, or B0082 |
| B0082 | Discard Passenger Side Impact Sensor (SIS) | SDM | DTC B0077, B0078, B0079, B0080, B0081, or B0082 |
| B0083 | Passenger Seat Position Sensor Circuit | SDM | DTC B0083 or B0084 |
| B0084 | Driver Seat Position Sensor Circuit | SDM | DTC B0083 or B0084 |
| B0092 | Passenger Presence System Performance | SDM | DTC B0092 |
| B0098 | Passenger Presence System Configuration Error | SDM | DTC B0098 |
| B0100 | Electronic Front End Sensor 1 Performance | SDM | DTC B0100, B0101, B0102, B0103, B0104, or B0105 |
| B0101 | Discard Electronic Front End Sensor 1 | SDM | DTC B0100, B0101, B0102, B0103, B0104, or B0105 |
| B0102 | Incorrect Electronic Front End Sensor 1 Installed | SDM | DTC B0100, B0101, B0102, B0103, B0104, or B0105 |
| B0103 | Electronic Front End Sensor 2 Performance | SDM | DTC B0100, B0101, B0102, B0103, B0104, or B0105 |
| B0104 | Discard Electronic Front End Sensor 2 | SDM | DTC B0100, B0101, B0102, B0103, B0104, or B0105 |
| B0105 | Incorrect Electronic Front End Sensor 2 Installed | SDM | DTC B0100, B0101, B0102, B0103, B0104, or B0105 |
| B0159 | Outside Air Temperature Sensor Circuit | HVAC | DTC B0159 or B0164 |
| B0164 | Passenger Compartment Temperature Sensor Circuit | HVAC | DTC B0159 or B0164 |
| B0174 | Output Air Temperature Sensor 1 Circuit | HVAC | DTC B0174, B0179, B0510, or B0515 |
| B0179 | Output Air Temperature Sensor 2 Circuit | HVAC | DTC B0174, B0179, B0510, or B0515 |
| B0184 | Solar Load Sensor 1 Circuit | HVAC | DTC B0184 or B0189 |
| B0189 | Solar Load Sensor 2 Circuit | HVAC | DTC B0184 or B0189 |
| B0248 | Air Flow Control 3 Circuit | HVAC | DTC B0248, B0268, B0408, or B0423 |
| B0249 | Air Flow Control 3 Circuit Range | HVAC | DTC B0249, B0269, B0409, or B0419 |
| B0268 | Air Flow Control 7 Circuit | HVAC | DTC B0248, B0268, B0408, or B0423 |
| B0269 | Air Flow Control 7 and Circuit Range | HVAC | DTC B0249, B0269, B0409, or B0419 |
| B0408 | Temperature Control 1 Circuit | HVAC | DTC B0248, B0268, B0408, or B0423 |
| B0409 | Temperature Control 1 Circuit Range | HVAC | DTC B0249, B0269, B0409, or B0419 |
| B0419 | Temperature Control 2 Circuit Range | HVAC | DTC B0249, B0269, B0409, or B0419 |
| B0423 | Temperature Control 2 Circuit | HVAC | DTC B0248, B0268, B0408, or B0423 |
| B0510 | Output Air Temperature Sensor 3 Circuit | HVAC | DTC B0174, B0179, B0510, or B0515 |
| B0515 | Output Air Temperature Sensor 4 Circuit | HVAC | DTC B0174, B0179, B0510, or B0515 |
| B0976 | Power Mode OFF Indicator Circuit | BCM | DTC B0976, B0977, or B0978 |
| B0977 | Power Mode START Indicator Circuit | BCM | DTC B0976, B0977, or B0978 |
| B0978 | Power Mode ACCESSORY Indicator Circuit | BCM | DTC B0976, B0977, or B0978 |
| B1000 | Electronic Control Unit (ECU) Performance | DCC, BCM, DDM, DRR, RCDLR, FTC, HUD, HVAC, IPC, PDM, Radio, CLCM, SDM, VCIM | DTC B1000 |
| B1001 | Option Configuration Error | BCM | DTC B1001 |
| DRR | DTC B1001 | ||
| SDM | DTC B1001 | ||
| VCIM | DTC B1001 | ||
| B1004 | Keep Alive Memory (KAM) Reset | Audio Amplifier, DDS, HVAC, VCIM | DTC B1004 |
| B1007 | EEPROM Write Error | Audio Amplifier, DDS, DPM, FTC, CLCM | DTC B1007 |
| B1009 | EEPROM Checksum Mismatch | Audio Amplifier, DDS, DPM, FTC, CLCM, VCIM | DTC B1009 |
| B1011 | System Disabled Information Stored | DDM, PDM | DTC B1011 |
| FTC | DTC B1011 | ||
| B1013 | Calibration Read Only Memory (ROM) Checksum Error | HVAC | DTC B1013 |
| B1014 | Program Read Only Memory (ROM) Checksum Error | HVAC | DTC B1014 |
| B1020 | Auxiliary Electronic Control Unit (ECU) Performance | BCM | DTC B1020 |
| B125A | Antenna 1 Circuit | DRR | DTC B125A or B125B |
| B125B | Antenna 2 Circuit | DRR | DTC B125A or B125B |
| B1271 | Theft Locked | Radio | DTC B1271 |
| B1297 | Trunk Unlatched Signal Circuit | FTC | DTC B1297 |
| B1300 | Moveable Roof Header Latched Sensor Circuit | FTC | DTC B1300 |
| B1310 | Moveable Roof Main Movement Up Sensor Circuit | FTC | DTC B1310 |
| B1325 | Device Power 1 Circuit | BCM | DTC B1325 |
| B1327 | Device Power 1 Circuit Low | Audio Amplifier, DDS, DRR, DPM, FTC, HVAC, SDM, CLCM, VCIM | DTC B1327 |
| B1328 | Device Power 1 Circuit High | Audio Amplifier, FTC, HVAC, CLCM, SDM | DTC B1328 |
| B1336 | Device Power 3 Circuit Range | DPM | DTC B1336 |
| B1370 | Device Ignition 1 Circuit | RCDLR | DTC B1370 |
| B1420 | Device Voltage | DDM, PDM | DTC B1420 |
| DPM | DTC B1420 | ||
| FTC | DTC B1420 | ||
| B1440 | Power Mode Master Input Circuit Mismatch | RCDLR | DTC B1440 |
| B1451 | Accessory Power Circuit | BCM | DTC B1451 |
| B1461 | Left Headlamp Horizontal Motor Circuit | AFS | DTC B1461 |
| B1462 | Right Headlamp Horizontal Motor Circuit | AFS | DTC B1462 |
| B1474 | Right Front Exterior Door Handle Switch Circuit | DDM, PDM, RCDLR | DTC B1474, B2981, B3848, or B3849 (DDM/PDM) or DTC B1474, B2981, B3848, or B3849 (RCDLR) |
| B1480 | Battery Rundown Protection Circuit | BCM | DTC B1480 |
| B1580 | Mirror Horizontal Position Sensor Circuit | DDM, PDM | DTC B1580 or B1590 |
| B1590 | Mirror Vertical Position Sensor Circuit | DDM, PDM | DTC B1580 or B1590 |
| B1600 | Mirror Motor 1 Circuit | DDM, PDM | DTC B1600 or B1605 |
| B1605 | Mirror Motor 2 Circuit | DDM, PDM | DTC B1600 or B1605 |
| B1697 | Mirror Left-Up Control Switch Circuit Low | DDS | DTC B1697, B1702, B1707, or B1712 |
| B1702 | Mirror Left-Down Control Switch Circuit Low | DDS | DTC B1697, B1702, B1707, or B1712 |
| B1707 | Mirror Right-Up Control Switch Circuit Low | DDS | DTC B1697, B1702, B1707, or B1712 |
| B1712 | Mirror Right-Down Control Switch Circuit Low | DDS | DTC B1697, B1702, B1707, or B1712 |
| B1735 | Seat Front Up Switch Circuit | DPM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1740 | Seat Front Down Switch Circuit | DPM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1745 | Seat Rear Up Switch Circuit | DPM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1750 | Seat Rear Down Switch Circuit | DPM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1755 | Seat Assembly Forward Switch Circuit | DPM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1760 | Seat Assembly Rearward Switch Circuit | DPM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1815 | Seat Recline Forward Switch Circuit | DPM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1820 | Seat Recline Rearward Switch Circuit | DPM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1825 | Seat Recline Position Sensor Circuit | DPM | DTC B1825, B1850, B2355, B2365, or B2375 |
| B1826 | Seat Recline Position Sensor Circuit Range/Performance | DPM | DTC B1826, B1851, B1861, B2356, B2366, or B2376 |
| B2355 | Seat Front Vertical Position Sensor Circuit | DPM | DTC B1825, B1850, B2355, B2365, or B2375 |
| B2356 | Seat Front Vertical Position Sensor Circuit Performance | DPM | DTC B1826, B1851, B1861, B2356, B2366, or B2376 |
| B2365 | Seat Rear Vertical Position Sensor Circuit | DPM | DTC B1825, B1850, B2355, B2365, or B2375 |
| B2366 | Seat Rear Vertical Position Sensor Circuit Range/Performance | DPM | DTC B1826, B1851, B1861, B2356, B2366, or B2376 |
| B2375 | Seat Assembly Horizontal Position Sensor Circuit | DPM | DTC B1825, B1850, B2355, B2365, or B2375 |
| B2376 | Seat Assembly Horizontal Position Sensor Circuit Performance | DPM | DTC B1826, B1851, B1861, B2356, B2366, or B2376 |
| B2455 | Cellular Phone Microphone Circuit | VCIM | DTC B2455 |
| B2462 | Global Positioning System (GPS) Signal Error | Radio | DTC B2462 |
| B2463 | Navigation Compact Disc Player-No Disc | Radio | DTC B2463 |
| B2464 | Navigation Compact Disc Player-Decoding Error | Radio | DTC B2464 |
| B2465 | Navigation Compact Disc Player-Data Error | Radio | DTC B2465 |
| B2466 | Navigation Vehicle Information Communication System (VICS) Memory Error | Radio | DTC B2466 |
| B2468 | Navigation Display Unit Performance | Radio | DTC B2468 |
| B2470 | Cellular Phone Antenna Circuit | VCIM | DTC B2470 |
| B2474 | Navigation Display Head (NDH) Backlighting Performance | Radio | DTC B2474 |
| B2476 | Cellular Phone Select Service Switch | VCIM | DTC B2476 |
| B2482 | Cellular Phone Select Service Switch Range/Performance | VCIM | DTC B2482 |
| B2483 | Global Positioning System (GPS) Sensor Circuit Low | VCIM | DTC B2483 or B2484 |
| B2484 | Global Positioning System (GPS) Sensor Circuit Open | VCIM | DTC B2483 or B2484 |
| B2510 | Steering Column Lock Motor Unlock Circuit | CLCM | DTC B2510 |
| B2515 | Steering Column Lock Motor Feedback Circuit | CLCM | DTC B2515 |
| B2517 | Left Front Door Latch Circuit | RCDLR | DTC B2517 or B2518 |
| B2518 | Right Front Door Latch Circuit | RCDLR | DTC B2517 or B2518 |
| B2530 | Front Foglamp Control Circuit | BCM | DTC B2530 |
| B2540 | Rear Foglamp Control Circuit | BCM | DTC B2540 |
| B2580 | Headlamp High Beam Control Circuit | BCM | DTC B2580 |
| B2625 | Display Dimming Pule Width Modulation (PWM) Output Circuit | BCM | DTC B2625 |
| B2710 | Gearshift Lock Circuit | RCDLR | DTC B2710 |
| B2750 | Horn Relay Coil Circuit | BCM | DTC B2750 |
| B2757 | Memory 1 Select Switch Circuit Low | DPM | DTC B2757, B2762, B2767, or B2772 |
| B2762 | Memory 2 Select Switch Circuit Low | DPM | DTC B2757, B2762, B2767, or B2772 |
| B2767 | Memory Set Switch Circuit Low | DPM | DTC B2757, B2762, B2767, or B2772 |
| B2772 | Memory Exit or Off Switch Circuit Low | DPM | DTC B2757, B2762, B2767, or B2772 |
| B2853 | Telescope Forward Switch Circuit High | DPM | DTC B2853, B2858, B2873, or B2878 |
| B2858 | Telescope Rearward Switch Circuit High | DPM | DTC B2853, B2858, B2873, or B2878 |
| B2860 | Telescope Position Sensor | DPM | DTC B2860 |
| B2873 | Tilt Up Switch Circuit High | DPM | DTC B2853, B2858, B2873, or B2878 |
| B2878 | Tilt Down Switch Circuit High | DPM | DTC B2853, B2858, B2873, or B2878 |
| B2880 | Tilt Position Sensor | DPM | DTC B2880 |
| B2897 | Steering Column Lock Motor Lock Circuit | CLCM | DTC B2897 |
| B2907 | Steering Column Lock Motor Enable Relay Circuit | CLCM | DTC B2907 |
| B2910 | Steering Column Lock Password Incorrect | CLCM | DTC B2910 |
| B2981 | Right Front Door Handle Switch Circuit | DDM, PDM, RCDLR | DTC B1474, B2981, B3848, or B3849 (DDM/PDM) or DTC B1474, B2981, B3848, or B3849 (RCDLR) |
| B3089 | Content Theft System Sensor 1 Signal Circuit | BCM | DTC B3089 |
| B3119 | Keyless Entry Antenna 1 Performance | RCDLR | DTC B3119 |
| B3120 | Keyless Entry Antenna 2 Performance | RCDLR | DTC B3120 |
| B3121 | Keyless Entry Antenna 3 Performance | RCDLR | DTC B3121 |
| B3122 | Keyless Entry Antenna 4 Performance | RCDLR | DTC B3122 |
| B3142 | Left Front Unlock Switch Circuit Low | DDS | DTC B3142 or B3152 |
| B3145 | Right Front Unlock Switch Circuit Low | PDM | DTC B3145 or B3155 |
| B3152 | Left Front Lock Switch Circuit Low | DDS | DTC B3142 or B3152 |
| B3155 | Right Front Lock Switch Circuit Low | PDM | DTC B3145 or B3155 |
| B3170 | Right Front Window Up Switch Circuit | PDM | DTC B3170, B3175, or B3280 |
| B3175 | Right Front Window Down Switch Circuit | PDM | DTC B3170, B3175, or B3280 |
| B3205 | Window Motor Circuit | DDM, PDM | DTC B3205 |
| B3265 | Trunk Release Output Circuit | BCM | DTC B3265 |
| B3280 | Right Front Window Express Up or Down Circuit | PDM | DTC B3170, B3175, or B3280 |
| B3377 | Left Front Window Up Switch Circuit Low | DDS | DTC B3377, B3382, B3387, B3392, B3467, or B3472 |
| B3382 | Left Front Window Down Switch Circuit Low | DDS | DTC B3377, B3382, B3387, B3392, B3467, or B3472 |
| B3387 | Right Front Window Up Switch Circuit Low | DDS | DTC B3377, B3382, B3387, B3392, B3467, or B3472 |
| B3392 | Right Front Window Down Switch Circuit Low | DDS | DTC B3377, B3382, B3387, B3392, B3467, or B3472 |
| B3467 | Left Front Window Express Up or Down Circuit Low | DDS | DTC B3377, B3382, B3387, B3392, B3467, or B3472 |
| B3472 | Right Front Window Express Up or Down Circuit Low | DDS | DTC B3377, B3382, B3387, B3392, B3467, or B3472 |
| B3542 | Window Obstruction Sensor Control Circuit | DDM, PDM | DTC B3542 |
| B3602 | Moveable Roof Control Switch | FTC | DTC B3602 |
| B3618 | Exterior Trunk Release Switch Circuit | RCDLR | DTC B3618 |
| B3623 | Steering Wheel Control Adaptive Cruise Control (ACC) Gap Up/Down Signal Circuit | BCM | DTC B3623 |
| B3624 | Steering Wheel Control Entertainment Signal 2 Circuit | BCM | DTC B3624 or DTC B3624 |
| B3641 | Trunk Close Switch Circuit | FTC | DTC B3641 |
| B3665 | Front Tonneau Position Error | FTC | DTC B3665 |
| B3666 | Rear Tonneau Position Error | FTC | DTC B3666 |
| B3669 | Deck Lid Position Sensor Circuit | FTC | DTC B3669 |
| B3670 | Pump Motor Temperature Sensor Circuit | FTC | DTC B3670 |
| B3794 | Cruise Control Function Request Circuit | BCM | DTC B3794 |
| B3810 | Headlamp Washer Relay Circuit | BCM | DTC B3810 |
| B3848 | Interior Door Handle Switch Circuit | DDM, PDM, RCDLR | DTC B1474, B2981, B3848, or B3849 (DDM/PDM) or DTC B1474, B2981, B3848, or B3849 (RCDLR) |
| B3849 | Left Front Exterior Door Handle Switch Circuit | DDM, PDM, RCDLR | DTC B1474, B2981, B3848, or B3849 (DDM/PDM) or DTC B1474, B2981, B3848, or B3849 (RCDLR) |
| B3948 | Left Front Turn Signal Circuit | BCM | DTC B3948 |
| B3949 | Right Front Turn Signal Circuit | BCM | DTC B3949 |
| B3950 | Left Rear Turn Signal Circuit | BCM | DTC B3950 |
| B3951 | Right Rear Turn Signal Circuit | BCM | DTC B3951 |
| B3971 | Folding Top Position Sensor | FTC | DTC B3971 |
| C0035 | Left Front Wheel Speed Sensor Circuit | EBCM | DTC C0035-C0050 |
| C0040 | Right Front Wheel Speed Sensor Circuit | EBCM | DTC C0035-C0050 |
| C0045 | Left Rear Wheel Speed Sensor Circuit | EBCM | DTC C0035-C0050 |
| C0050 | Right Rear Wheel Speed Sensor Circuit | EBCM | DTC C0035-C0050 |
| C0110 | Pump Motor Circuit | EBCM | DTC C0110 |
| C0136 | Base Brake System Pressure Circuit | EBCM | DTC C0136 |
| C0137 | Base Brake System Pressure Circuit Range | EBCM | DTC C0137 |
| C0161 | Antilock Brake System (ABS)/Traction Control System (TCS) Brake Switch Circuit | EBCM | DTC C0161 |
| C0179 | System Thermal High | EBCM | DTC C0179 |
| C0186 | Lateral Accelerometer Circuit | EBCM | DTC C0186 |
| C0196 | Yaw Rate Circuit | EBCM | DTC C0196 |
| C0220 | Left Front Antilock Brake System (ABS) Channel in Release Too Long | EBCM | DTC C0220-C0229 |
| C0221 | Right Front Antilock Brake System (ABS) Channel in Release Too Long | EBCM | DTC C0220-C0229 |
| C0228 | Left Rear Antilock Brake System (ABS) Channel in Release Too Long | EBCM | DTC C0220-C0229 |
| C0229 | Right Rear Antilock Brake System (ABS) Channel in Release Too Long | EBCM | DTC C0220-C0229 |
| C0240 | Powertrain Control Module (PCM) Traction Control Not Allowed | EBCM | DTC C0240 |
| C0242 | Powertrain Control Module (PCM) Indicated TC Malfunction | EBCM | DTC C0242 |
| C0249 | Left Normal Force Error | EBCM | DTC C0249 or C0250 |
| C0250 | Right Normal Force Error | EBCM | DTC C0249 or C0250 |
| C0252 | Vehicle Stability Enhancement System (VSES) Sensor Uncorrelated | EBCM | DTC C0252 |
| C0253 | Centering Error | EBCM | DTC C0253 |
| C0267 | Low Brake Fluid Indicated | EBCM | DTC C0267 |
| C0277 | Brake Pedal Position Sensor Circuit | BCM | DTC C0277 |
| C0278 | Brake Pedal Position Sensor Not Calibrated | BCM | DTC C0278 |
| C0281 | Dynamic Rear Proportioning (DRP) Performance | EBCM | DTC C0281 or C081 |
| C0290 | Park Brake Apply Relay Circuit | BCM | DTC C0290 |
| C0291 | Park Brake Release Relay Circuit | BCM | DTC C0291 |
| C0450 | Steering Assist Control Actuator Circuit | EBCM | DTC C0450 |
| C0550 | Electronic Control Unit (ECU) Performance | EBCM | DTC C0550 |
| ESC | DTC C0550 | ||
| C0551 | Option Configuration Error | EBCM | DTC C0551 |
| C0558 | Calibration Data Not Programmed | ESC | DTC C0558 |
| C0561 | System Disabled Information Stored | EBCM | DTC C0561 |
| C0565 | Vehicle Identification Number (VIN) Information Error | EBCM | DTC C0565 |
| C0575 | Left Front Actuator Circuit | ESC | DTC C0575, C0580, C0585, or C0590 |
| C0580 | Right Front Actuator Circuit | ESC | DTC C0575, C0580, C0585, or C0590 |
| C0585 | Left Rear Actuator Circuit | ESC | DTC C0575, C0580, C0585, or C0590 |
| C0590 | Right Rear Actuator Circuit | ESC | DTC C0575, C0580, C0585, or C0590 |
| C0615 | Left Front Position Sensor Circuit | ESC | DTC C0615, C0620, C0625 or C0630 |
| C0620 | Right Front Position Sensor Circuit | ESC | DTC C0615, C0620, C0625 or C0630 |
| C0625 | Left Rear Position Sensor Circuit | ESC | DTC C0615, C0620, C0625 or C0630 |
| C0630 | Right Rear Position Sensor Circuit | ESC | DTC C0615, C0620, C0625 or C0630 |
| C0696 | Position Sensor Overcurrent (5 Volt Supply) | ESC | DTC C0696 |
| C0710 | Steering Position Signal | EBCM | DTC C0710 |
| C0750 | Left Front Low Tire Pressure Sensor | RCDLR | DTC C0750, C0755, C0760, or C0765 |
| C0755 | Right Front Low Tire Pressure Sensor | RCDLR | DTC C0750, C0755, C0760, or C0765 |
| C0760 | Left Rear Low Tire Pressure Sensor | RCDLR | DTC C0750, C0755, C0760, or C0765 |
| C0765 | Right Rear Low Tire Pressure Sensor | RCDLR | DTC C0750, C0755, C0760, or C0765 |
| C0820 | Device Ground Circuit | EBCM | DTC C0820 |
| C0870 | Device Voltage Reference Output Circuit | EBCM | DTC C0870 |
| Device Voltage Reference Output 1 Circuit | BCM | DTC C0870 | |
| C0895 | Device Voltage | ESC | DTC C0895 |
| C0899 | Device Voltage Low | EBCM | DTC C0899 |
| C0900 | Device Voltage High | EBCM | DTC C0900 |
| C0914 | Device Voltage Reference Output 1 Circuit | ACM | DTC C0914 |
| C1002 | Distance Sensing Cruise Control Module Performance | DCC | DTC C1002 |
| P0010 | Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1 | ECM | DTC P0010, P0013, P0020, or P0023 for the 4.6L (LH2) engine or DTC P0010, P0013, P0020, or P0023 for the 4.4L engine |
| P0011 | Intake Camshaft Position (CMP) System Performance Bank 1 | ECM | DTC P0011, P0014, P0021, or P0024 for the 4.6L (LH2) engine or DTC P0011, P0014, P0021, or P0024 for the 4.4L engine |
| P0013 | Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 1 | ECM | DTC P0010, P0013, P0020, or P0023 for the 4.6L (LH2) engine or DTC P0010, P0013, P0020, or P0023 for the 4.4L engine |
| P0014 | Exhaust Camshaft Position (CMP) System Performance Bank 1 | ECM | DTC P0011, P0014, P0021, or P0024 for the 4.6L (LH2) engine or DTC P0011, P0014, P0021, or P0024 for the 4.4L engine |
| P0016 | Crankcase Position (CKP)-Intake Camshaft Position (CMP) Correlation Bank 1 | ECM | DTC P0016, P0017, P0018, or P0019 for the 4.4L engine or DTC P0016, P0017, P0018, or P0019 for the 4.6L (LH2) engine |
| P0017 | Crankcase Position (CKP)-Exhaust Camshaft Position (CMP) Correlation Bank 1 | ECM | DTC P0016, P0017, P0018, or P0019 for the 4.4L engine or DTC P0016, P0017, P0018, or P0019 for the 4.6L (LH2) engine |
| P0018 | Crankcase Position (CKP)-Intake Camshaft Position (CMP) Correlation Bank 2 | ECM | DTC P0016, P0017, P0018, or P0019 for the 4.4L engine or DTC P0016, P0017, P0018, or P0019 for the 4.6L (LH2) engine |
| P0019 | Crankcase Position (CKP)-Exhaust Camshaft Position (CMP) Correlation Bank 2 | ECM | DTC P0016, P0017, P0018, or P0019 for the 4.4L engine or DTC P0016, P0017, P0018, or P0019 for the 4.6L (LH2) engine |
| P0020 | Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2 | ECM | DTC P0010, P0013, P0020, or P0023 for the 4.6L (LH2) engine or DTC P0010, P0013, P0020, or P0023 for the 4.4L engine |
| P0021 | Intake Camshaft Position (CMP) System Performance Bank 2 | ECM | DTC P0011, P0014, P0021, or P0024 for the 4.6L (LH2) engine or DTC P0011, P0014, P0021, or P0024 for the 4.4L engine |
| P0023 | Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Bank 2 | ECM | DTC P0010, P0013, P0020, or P0023 for the 4.6L (LH2) engine or DTC P0010, P0013, P0020, or P0023 for the 4.4L engine |
| P0024 | Exhaust Camshaft Position (CMP) System Performance Bank 2 | ECM | DTC P0011, P0014, P0021, or P0024 for the 4.6L (LH2) engine or DTC P0011, P0014, P0021, or P0024 for the 4.4L engine |
| P0030 | HO2S Heater Control Circuit Bank 1 Sensor 1 | ECM | DTC P0030, P0036, P0050, or P0056 for the 4.6L (LH2) engine or DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 for the 4.4L engine |
| P0031 | HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 1 | ECM | DTC P0031, P0037, P0051, or P0057 |
| P0032 | HO2S Heater Control Circuit High Voltage Bank 1 Sensor 1 | ECM | DTC P0032, P0038, P0052, or P0058 |
| P0033 | Supercharger Bypass Valve Solenoid Control Circuit | ECM | DTC P0033 |
| P0036 | HO2S Heater Control Circuit Bank 1 Sensor 2 | ECM | DTC P0030, P0036, P0050, or P0056 for the 4.6L (LH2) engine or DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 for the 4.4L engine |
| P0037 | HO2S Heater Control Circuit Low Voltage Bank 1 Sensor 2 | ECM | DTC P0031, P0037, P0051, or P0057 |
| P0038 | HO2S Heater Control Circuit High Voltage Bank 1 Sensor 2 | ECM | DTC P0032, P0038, P0052, or P0058 |
| P0050 | HO2S Heater Control Circuit Bank 2 Sensor 1 | ECM | DTC P0030, P0036, P0050, or P0056 for the 4.6L (LH2) engine or DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 for the 4.4L engine |
| P0051 | HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 1 | ECM | DTC P0031, P0037, P0051, or P0057 |
| P0052 | HO2S Heater Control Circuit High Voltage Bank 2 Sensor 1 | ECM | DTC P0032, P0038, P0052, or P0058 |
| P0053 | HO2S Heater Resistance Bank 1 Sensor 1 | ECM | DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 |
| P0054 | HO2S Heater Resistance Bank 1 Sensor 2 | ECM | DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 |
| P0056 | HO2S Heater Control Circuit Bank 2 Sensor 2 | ECM | DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 for the 4.6L (LH2) engine or DTC P0030, P0036, P0050, or P0056 for the 4.6L (LH2) engine |
| P0057 | HO2S Heater Control Circuit Low Voltage Bank 2 Sensor 2 | ECM | DTC P0031, P0037, P0051, or P0057 |
| P0058 | HO2S Heater Control Circuit High Voltage Bank 2 Sensor 2 | ECM | DTC P0032, P0038, P0052, or P0058 |
| P0059 | HO2S Heater Resistance Bank 2 Sensor 1 | ECM | DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 |
| P0060 | HO2S Heater Resistance Bank 2 Sensor 2 | ECM | DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 |
| P0068 | Throttle Body Airflow Performance | ECM | DTC P0068 for the 4.6L (LH2) engine or DTC P0068 or P0121 for the 4.4L engine |
| P0069 | Manifold Absolute Pressure - Barometric Pressure Correlation | ECM | DTC P0069 |
| P0096 | Intake Air Temperature (IAT) Sensor 2 Performance | ECM | DTC P0096 |
| P0097 | Intake Air Temperature (IAT) Sensor 2 Circuit Low Voltage | ECM | DTC P0097 or P0098 |
| P0098 | Intake Air Temperature (IAT) Sensor 2 Circuit High Voltage | ECM | DTC P0097 or P0098 |
| P0101 | Mass Air Flow (MAF) Sensor Performance | ECM | DTC P0101 for the 4.6L (LH2) engine or DTC P0101 for the 4.4L engine |
| P0102 | Mass Air Flow (MAF) Sensor Circuit Low Frequency | ECM | DTC P0102 for the 4.6L (LH2) engine or DTC P0102 or P0103 for the 4.4L engine |
| P0103 | Mass Air Flow (MAF) Sensor Circuit High Frequency | ECM | DTC P0103 for the 4.6L (LH2) engine or DTC P0102 or P0103 for the 4.4L engine |
| P0106 | Manifold Absolute Pressure (MAP) Sensor Performance | ECM | DTC P0106 for the 4.6L (LH2) engine or DTC P0106 for the 4.4L engine |
| P0107 | Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage | ECM | DTC P0107 for the 4.6L (LH2) engine or DTC P0107 or P0108 for the 4.4L engine |
| P0108 | Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage | ECM | DTC P0108 for the 4.6L (LH2) engine or DTC P0107 or P0108 for the 4.4L engine |
| P0111 | Intake Air Temperature (IAT) Sensor Performance | ECM | DTC P0111 |
| P0112 | Intake Air Temperature (IAT) Sensor Circuit Low Voltage | ECM | DTC P0112 for the 4.6L (LH2) engine or DTC P0112 or P0113 for the 4.4L engine |
| P0113 | Intake Air Temperature (IAT) Sensor Circuit High Voltage | ECM | DTC P0113 for the 4.6L (LH2) engine or DTC P0112 or P0113 for the 4.4L engine |
| P0115 | Engine Coolant Temperature (ECT) Sensor Circuit | TCM | DTC P0115 |
| P0116 | Engine Coolant Temperature (ECT) Sensor Performance | ECM | DTC P0116 for the 4.6L (LH2) engine or DTC P0116 for the 4.4L engine |
| P0117 | Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage | ECM | DTC P0117 for the 4.6L (LH2) engine or DTC P0117 or P0118 for the 4.4L engine |
| P0118 | Engine Coolant Temperature (ECT) Sensor Circuit High Voltage | ECM | DTC P0118 for the 4.6L (LH2) engine or DTC P0117 or P0118 for the 4.4L engine |
| P0120 | Throttle Position (TP) Sensor Circuit | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 4.4L engine |
| TCM | DTC P0120 for the 5L40-E/5L50-E transmission | ||
| P0121 | Throttle Position (TP) Sensor 1 Performance | ECM | DTC P0068 or P0121 |
| P0122 | Throttle Position (TP) Sensor 1 Circuit Low Voltage | ECM | DTC P0122 for the 4.6L (LH2) engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 4.4L engine |
| P0123 | Throttle Position (TP) Sensor 1 Circuit High Voltage | ECM | DTC P0123 for the 4.6L (LH2) engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 4.4L engine |
| P0125 | Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control | ECM | DTC P0125 |
| P0128 | Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature | ECM | DTC P0128 for the 4.6L (LH2) engine or DTC P0128 for the 4.4L engine |
| P012B | Supercharger Inlet Absolute Pressure (SCIAP) Sensor Performance | ECM | DTC P012B |
| P012C | Supercharger Inlet Absolute Pressure (SCIAP) Sensor Circuit Low Voltage | ECM | DTC P012C or P012D |
| P012D | Supercharger Inlet Absolute Pressure (SCIAP) Sensor Circuit High Voltage | ECM | DTC P012C or P012D |
| P0131 | HO2S Circuit Low Voltage Bank 1 Sensor 1 | ECM | DTC P0131 or P0151 for the 4.6L (LH2) engine or DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 for the 4.4L engine |
| P0132 | HO2S Circuit High Voltage Bank 1 Sensor 1 | ECM | DTC P0132 or P0152 for the 4.6L (LH2) engine or DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 for the 4.4L engine |
| P0133 | HO2S Slow Response Bank 1 Sensor 1 | ECM | DTC P0133 or P0153 for the 4.6L (LH2) engine or DTC P0133, P0134, P0140, P0153, P0154, P0160, P1133, or P1153 for the 4.4L engine |
| P0134 | HO2S Circuit Insufficient Activity Bank 1 Sensor 1 | ECM | DTC P0134 or P0154 for the 4.6L (LH2) engine or DTC P0133, P0134, P0140, P0153, P0154, P0160, P1133, or P1153 for the 4.4L engine |
| P0135 | HO2S Heater Performance Bank 1 Sensor 1 | ECM | DTC P0135 or P0155 for the 4.6L (LH2) engine or DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 for the 4.4L engine |
| P0137 | HO2S Circuit Low Voltage Bank 1 Sensor 2 | ECM | DTC P0137 or P0157 for the 4.6L (LH2) engine or DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 for the 4.4L engine |
| P0138 | HO2S Circuit High Voltage Bank 1 Sensor 2 | ECM | DTC P0138 or P0158 for the 4.6L (LH2) engine or DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 for the 4.4L engine |
| P0139 | HO2S Slow Response Bank 1 Sensor 2 | ECM | DTC P0139 or P0159 |
| P0140 | HO2S Circuit Insufficient Activity Bank 1 Sensor 2 | ECM | DTC P0140 or P0160 for the 4.6L (LH2) engine or DTC P0133, P0134, P0140, P0153, P0154, P0160, P1133, or P1153 for the 4.4L engine |
| P0141 | HO2S Heater Performance Bank 1 Sensor 2 | ECM | DTC P0141 or P0161 for the 4.6L (LH2) engine or DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 for the 4.4L engine |
| P0151 | HO2S Circuit Low Voltage Bank 2 Sensor 1 | ECM | DTC P0131 or P0151 for the 4.6L (LH2) engine or DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 for the 4.4L engine |
| P0152 | HO2S Circuit High Voltage Bank 2 Sensor 1 | ECM | DTC P0132 or P0152 for the 4.6L (LH2) engine or DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 for the 4.4L engine |
| P0153 | HO2S Low Response Bank 2 Sensor 1 | ECM | DTC P0133 or P0153 for the 4.6L (LH2) engine or DTC P0133, P0134, P0140, P0153, P0154, P0160, P1133, or P1153 for the 4.4L engine |
| P0154 | HO2S Circuit Insufficient Activity Bank 2 Sensor 1 | ECM | DTC P0134 or P0154 for the 4.6L (LH2) engine or DTC P0133, P0134, P0140, P0153, P0154, P0160, P1133, or P1153 for the 4.4L engine |
| P0155 | HO2S Heater Performance Bank 2 Sensor 1 | ECM | DTC P0135 or P0155 for the 4.6L (LH2) engine or DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 for the 4.4L engine |
| P0157 | HO2S Circuit Low Voltage Bank 2 Sensor 2 | ECM | DTC P0137 or P0157 |
| P0158 | HO2S Circuit High Voltage Bank 2 Sensor 2 | ECM | DTC P0138 or P0158 |
| P0159 | HO2S Low Response Bank 2 Sensor 2 | ECM | DTC P0139 or P0159 |
| P0160 | HO2S Circuit Insufficient Activity Bank 2 Sensor 2 | ECM | DTC P0140 or P0160 |
| P0161 | HO2S Heater Performance Bank 2 Sensor 2 | ECM | DTC P0141 or P0161 for the 4.6L (LH2) engine or DTC P0030, P0036, P0050, P0053, P0054, P0056, P0059, P0060, P0135, P0141, P0155, or P0161 for the 4.4L engine |
| P0171 | Fuel Trim System Lean Bank 1 | ECM | DTC P0171 or P0174 for the 4.6L (LH2) engine or DTC P0171 or P0172 for the 4.4L engine |
| P0172 | Fuel Trim System Rich Bank 1 | ECM | DTC P0172 or P0175 for the 4.6L (LH2) engine or DTC P0171 or P0172 for the 4.4L engine |
| P0174 | Fuel Trim System Lean Bank 2 | ECM | DTC P0171 or P0174 for the 4.6L (LH2) engine or DTC P0174 or P0175 for the 4.4L engine |
| P0175 | Fuel Trim System Rich Bank 2 | ECM | DTC P0172 or P0175 for the 4.6L (LH2) engine or DTC P0174 or P0175 for the 4.4L engine |
| P0196 | Engine Oil Temperature (EOT) Sensor Performance | ECM | DTC P0196 |
| P0197 | Engine Oil Temperature (EOT) Sensor Circuit Low Voltage | ECM | DTC P0197 or P0198 |
| P0198 | Engine Oil Temperature (EOT) Sensor Circuit High Voltage | ECM | DTC P0197 or P0198 |
| P0201 | Injector 1 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.6L (LH2) engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.4L engine |
| P0202 | Injector 2 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.6L (LH2) engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.4L engine |
| P0203 | Injector 3 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.6L (LH2) engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.4L engine |
| P0204 | Injector 4 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.6L (LH2) engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.4L engine |
| P0205 | Injector 5 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.6L (LH2) engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.4L engine |
| P0206 | Injector 6 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.6L (LH2) engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.4L engine |
| P0207 | Injector 7 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.6L (LH2) engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.4L engine |
| P0208 | Injector 8 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.6L (LH2) engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 4.4L engine |
| P0218 | Transmission Fluid Overtemperature | TCM | DTC P0218 for the 5L40-E/5L50-E transmission or DTC P0218 for the 6L80-E transmission |
| P0220 | Throttle Position (TP) Sensor 2 Circuit | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 |
| P0222 | Throttle Position (TP) Sensor 2 Circuit Low Voltage | ECM | DTC P0222 for the 4.6L (LH2) engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 4.4L engine |
| P0223 | Throttle Position (TP) Sensor 2 Circuit High Voltage | ECM | DTC P0223 for the 4.6L (LH2) engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 4.4L engine |
| P0230 | Fuel Pump Relay Control Circuit | ECM | DTC P0230 |
| P023A | Charge Air Cooler (CAC) Coolant Pump Relay Control Circuit | ECM | DTC P023A |
| P0261 | Injector 1 Control Circuit Low Voltage | ECM | DTC P0261, P0264, P0267, P0270, P0273, P0276, P0279, or P0282 |
| P0262 | Injector 1 Control Circuit High Voltage | ECM | DTC P0262, P0265, P0268, P0271, P0274, P0277, P0280, or P0283 |
| P0264 | Injector 2 Control Circuit Low Voltage | ECM | DTC P0261, P0264, P0267, P0270, P0273, P0276, P0279, or P0282 |
| P0265 | Injector 2 Control Circuit High Voltage | ECM | DTC P0262, P0265, P0268, P0271, P0274, P0277, P0280, or P0283 |
| P0267 | Injector 3 Control Circuit Low Voltage | ECM | DTC P0261, P0264, P0267, P0270, P0273, P0276, P0279, or P0282 |
| P0268 | Injector 3 Control Circuit High Voltage | ECM | DTC P0262, P0265, P0268, P0271, P0274, P0277, P0280, or P0283 |
| P0270 | Injector 4 Control Circuit Low Voltage | ECM | DTC P0261, P0264, P0267, P0270, P0273, P0276, P0279, or P0282 |
| P0271 | Injector 4 Control Circuit High Voltage | ECM | DTC P0262, P0265, P0268, P0271, P0274, P0277, P0280, or P0283 |
| P0273 | Injector 5 Control Circuit Low Voltage | ECM | DTC P0261, P0264, P0267, P0270, P0273, P0276, P0279, or P0282 |
| P0274 | Injector 5 Control Circuit High Voltage | ECM | DTC P0262, P0265, P0268, P0271, P0274, P0277, P0280, or P0283 |
| P0276 | Injector 6 Control Circuit Low Voltage | ECM | DTC P0261, P0264, P0267, P0270, P0273, P0276, P0279, or P0282 |
| P0277 | Injector 6 Control Circuit High Voltage | ECM | DTC P0262, P0265, P0268, P0271, P0274, P0277, P0280, or P0283 |
| P0279 | Injector 7 Control Circuit Low Voltage | ECM | DTC P0261, P0264, P0267, P0270, P0273, P0276, P0279, or P0282 |
| P0280 | Injector 7 Control Circuit High Voltage | ECM | DTC P0262, P0265, P0268, P0271, P0274, P0277, P0280, or P0283 |
| P0282 | Injector 8 Control Circuit Low Voltage | ECM | DTC P0261, P0264, P0267, P0270, P0273, P0276, P0279, or P0282 |
| P0283 | Injector 8 Control Circuit High Voltage | ECM | DTC P0262, P0265, P0268, P0271, P0274, P0277, P0280, or P0283 |
| P0300 | Engine Misfire Detected | ECM | DTC P0300 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0301 | Cylinder 1 Misfire Detected | ECM | DTC P0301-P0308 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0302 | Cylinder 2 Misfire Detected | ECM | DTC P0301-P0308 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0303 | Cylinder 3 Misfire Detected | ECM | DTC P0301-P0308 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0304 | Cylinder 4 Misfire Detected | ECM | DTC P0301-P0308 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0305 | Cylinder 5 Misfire Detected | ECM | DTC P0301-P0308 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0306 | Cylinder 6 Misfire Detected | ECM | DTC P0301-P0308 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0307 | Cylinder 7 Misfire Detected | ECM | DTC P0301-P0308 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0308 | Cylinder 8 Misfire Detected | ECM | DTC P0301-P0308 for the 4.6L (LH2) engine or DTC P0300-P0308 for the 4.4L engine |
| P0315 | Crankshaft Position (CKP) System Variation Not Learned | ECM | DTC P0315 for the 4.6L (LH2) engine or DTC P0315 for the 4.4L engine |
| P0324 | Knock Sensor (KS) Module Performance | ECM | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0331, P0332, or P0333 |
| P0325 | Knock Sensor (KS) Circuit Bank 1 | ECM | DTC P0325 or P0330 for the 4.6L (LH2) engine or DTC P0324, P0325, P0326, P0327, P0328, P0330, P0331, P0332, or P0333 for the 4.4L engine |
| P0326 | Knock Sensor (KS) Performance Bank 1 | ECM | DTC P0326 or P0331 for the 4.6L (LH2) engine or DTC P0324, P0325, P0326, P0327, P0328, P0330, P0331, P0332, or P0333 for the 4.4L engine |
| P0327 | Knock Sensor (KS) Circuit Low Voltage Bank 1 | ECM | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0331, P0332, or P0333 |
| P0328 | Knock Sensor (KS) Circuit High Voltage Bank 1 | ECM | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0331, P0332, or P0333 |
| P0330 | Knock Sensor (KS) Circuit Bank 2 | ECM | DTC P0325 or P0330 for the 4.6L (LH2) engine or DTC P0324, P0325, P0326, P0327, P0328, P0330, P0331, P0332, or P0333 for the 4.4L engine |
| P0331 | Knock Sensor (KS) Performance Bank 2 | ECM | DTC P0326 or P0331 |
| P0332 | Knock Sensor (KS) Circuit Low Voltage Bank 2 | ECM | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0331, P0332, or P0333 |
| P0333 | Knock Sensor (KS) Circuit High Voltage Bank 2 | ECM | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0331, P0332, or P0333 |
| P0335 | Crankshaft Position (CKP) Sensor Circuit | ECM | DTC P0335 for the 4.6L (LH2) engine or DTC P0335 or P0336 for the 4.4L engine |
| P0336 | Crankshaft Position (CKP) Sensor Performance | ECM | DTC P0336 for the 4.6L (LH2) engine or DTC P0335 or P0336 for the 4.4L engine |
| P0340 | Intake Camshaft Position (CMP) Sensor Circuit Bank 1 | ECM | DTC P0340 or P0345 for the 4.6L (LH2) engine or DTC P0340 or P0345 for the 4.4L engine |
| P0341 | Intake Camshaft Position (CMP) Sensor Performance Bank 1 | ECM | DTC P0341 or P0346 for the 4.6L (LH2) engine or DTC P0341 or P0346 for the 4.4L engine |
| P0345 | Intake Camshaft Position (CMP) Sensor Circuit Bank 2 | ECM | DTC P0340 or P0345 for the 4.6L (LH2) engine or DTC P0340 or P0345 for the 4.4L engine |
| P0346 | Intake Camshaft Position (CMP) Sensor Performance Bank 2 | ECM | DTC P0341 or P0346 for the 4.6L (LH2) engine or DTC P0341 or P0346 for the 4.4L engine |
| P0351 | Ignition Coil 1 Control Circuit | ECM | DTC P0351-P0358 for the 4.6L (LH2) engine or DTC P0351-P0358 for the 4.4L engine |
| P0352 | Ignition Coil 2 Control Circuit | ECM | DTC P0351-P0358 for the 4.6L (LH2) engine or DTC P0351-P0358 for the 4.4L engine |
| P0353 | Ignition Coil 3 Control Circuit | ECM | DTC P0351-P0358 for the 4.6L (LH2) engine or DTC P0351-P0358 for the 4.4L engine |
| P0354 | Ignition Coil 4 Control Circuit | ECM | DTC P0351-P0358 for the 4.6L (LH2) engine or DTC P0351-P0358 for the 4.4L engine |
| P0355 | Ignition Coil 5 Control Circuit | ECM | DTC P0351-P0358 for the 4.6L (LH2) engine or DTC P0351-P0358 for the 4.4L engine |
| P0356 | Ignition Coil 6 Control Circuit | ECM | DTC P0351-P0358 for the 4.6L (LH2) engine or DTC P0351-P0358 for the 4.4L engine |
| P0357 | Ignition Coil 7 Control Circuit | ECM | DTC P0351-P0358 for the 4.6L (LH2) engine or DTC P0351-P0358 for the 4.4L engine |
| P0358 | Ignition Coil 8 Control Circuit | ECM | DTC P0351-P0358 for the 4.6L (LH2) engine or DTC P0351-P0358 for the 4.4L engine |
| P0365 | Exhaust Camshaft Position (CMP) Sensor Circuit Bank 1 | ECM | DTC P0365 or P0390 for the 4.6L (LH2) engine or DTC P0365 or P0390 for the 4.4L engine |
| P0366 | Exhaust Camshaft Position (CMP) Sensor Performance Bank 1 | ECM | DTC P0366 or P0391 for the 4.6L (LH2) engine or DTC P0366 or P0391 for the 4.4L engine |
| P0390 | Exhaust Camshaft Position (CMP) Sensor Circuit Bank 2 | ECM | DTC P0365 or P0390 for the 4.6L (LH2) engine or DTC P0365 or P0390 for the 4.4L engine |
| P0391 | Exhaust Camshaft Position (CMP) Sensor Performance Bank 2 | ECM | DTC P0366 or P0391 for the 4.6L (LH2) engine or DTC P0366 or P0391 for the 4.4L engine |
| P0420 | Catalyst System Low Efficiency Bank 1 | ECM | DTC P0420 or P0430 for the 4.6L (LH2) engine or DTC P0420 or P0430 for the 4.4L engine |
| P0430 | Catalyst System Low Efficiency Bank 2 | ECM | DTC P0420 or P0430 for the 4.6L (LH2) engine or DTC P0420 or P0430 for the 4.4L engine |
| P0442 | Evaporative Emission (EVAP) System Small Leak Detected | ECM | DTC P0442 for the 4.6L (LH2) engine or DTC P0442 for the 4.4L engine |
| P0443 | Evaporative Emission (EVAP) Purge Solenoid Control Circuit | ECM | DTC P0443 for the 4.6L (LH2) engine or DTC P0443 for the 4.4L engine |
| P0446 | Evaporative Emission (EVAP) Vent System Performance | ECM | DTC P0446 for the 4.6L (LH2) engine or DTC P0446 for the 4.4L engine |
| P0449 | Evaporative Emission (EVAP) Vent Solenoid Control Circuit | ECM | DTC P0449 for the 4.6L (LH2) engine or DTC P0449 for the 4.4L engine |
| P0451 | Fuel Tank Pressure (FTP) Sensor Performance | ECM | DTC P0451 for the 4.6L (LH2) engine or DTC P0451 for the 4.4L engine |
| P0452 | Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage | ECM | DTC P0452 for the 4.6L (LH2) engine or DTC P0452 for the 4.4L engine |
| P0453 | Fuel Tank Pressure (FTP) Sensor Circuit High Voltage | ECM | DTC P0453 for the 4.6L (LH2) engine or DTC P0453 for the 4.4L engine |
| P0454 | Fuel Tank Pressure (FTP) Sensor Circuit Intermittent | ECM | DTC P0454 for the 4.6L (LH2) engine or DTC P0454 for the 4.4L engine |
| P0455 | Evaporative Emission (EVAP) System Large Leak Detected | ECM | DTC P0455 for the 4.6L (LH2) engine or DTC P0455 for the 4.4L engine |
| P0458 | Evaporative Emission (EVAP) Purge Solenoid Control Circuit Low Voltage | ECM | DTC P0458 |
| P0459 | Evaporative Emission (EVAP) Purge Solenoid Control Circuit High Voltage | ECM | DTC P0459 |
| P0461 | Fuel Level Sensor 1 Performance | ECM | DTC P0461 |
| P0462 | Fuel Level Sensor 1 Circuit Low Voltage | ECM | DTC P0462 |
| P0463 | Fuel Level Sensor 1 Circuit High Voltage | ECM | DTC P0463 |
| P0496 | Evaporative Emission (EVAP) System Flow During Non-Purge | ECM | DTC P0496 for the 4.6L (LH2) engine or DTC P0496 for the 4.4L engine |
| P0498 | Evaporative Emission (EVAP) Vent Solenoid Control Circuit Low Voltage | ECM | DTC P0498 |
| P0499 | Evaporative Emission (EVAP) Vent Solenoid Control Circuit High Voltage | ECM | DTC P0499 |
| P0500 | Vehicle Speed Sensor (VSS) Circuit | TCM | DTC P0500 |
| P0506 | Idle Speed Low | ECM | DTC P0506 for the 4.6L (LH2) engine or DTC P0506 or P0507 for the 4.4L engine |
| P0507 | Idle Speed High | ECM | DTC P0507 for the 4.6L (LH2) engine or DTC P0506 or P0507 for the 4.4L engine |
| P0521 | Engine Oil Pressure (EOP) Sensor Performance | ECM | DTC P0521 |
| P0522 | Engine Oil Pressure (EOP) Sensor Circuit Low Voltage | ECM | DTC P0522 |
| P0523 | Engine Oil Pressure (EOP) Sensor Circuit High Voltage | ECM | DTC P0523 |
| P0531 | Air Conditioning (A/C) Refrigerant Pressure Sensor Performance | ECM | DTC P0531, P0532, or P0533 |
| P0532 | Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit Low Voltage | ECM | DTC P0531, P0532, or P0533 |
| P0533 | Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit High Voltage | ECM | DTC P0531, P0532, or P0533 |
| P0562 | System Voltage Low | ECM | DTC P0562 |
| TCM | DTC P0562 for the 5L40-E/5L50-E transmission or DTC P0562 or P0563 for the 6L80-E transmission | ||
| P0563 | System Voltage High | ECM | DTC P0563 |
| TCM | DTC P0563 for the 5L40-E/5L50-E transmission or DTC P0562 or P0563 for the 6L80-E transmission | ||
| P0572 | Brake Switch Circuit 1 Low Voltage | ECM | DTC P0572 |
| P0573 | Brake Switch Circuit 1 High Voltage | ECM | DTC P0573 |
| P0575 | Cruise Control Switch Signal Circuit | ECM | DTC P0575 |
| P0601 | Control Module Read Only Memory (ROM) | ECM | DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 for the 4.6L (LH2) engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 4.4L engine |
| Transmission Control Module (TCM) Read Only Memory (ROM) | TCM | DTC P0601, P0602, P0603, P0604, or P062F for the 5L40-E/5L50-E transmission or DTC P0601, P0602, P0603, P0604, or P1621 for the 6L80-E transmission | |
| P0602 | Control Module Not Programmed | ECM | DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 for the 4.6L (LH2) engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 4.4L engine |
| Transmission Control Module (TCM) Not Programmed | TCM | DTC P0601, P0602, P0603, P0604, or P062F for the 5L40-E/5L50-E transmission or DTC P0601, P0602, P0603, P0604, or P1621 for the 6L80-E transmission | |
| P0603 | Control Module Long Term Memory Reset | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 4.4L engine |
| Transmission Control Module (TCM) Long Term Memory Reset | TCM | DTC P0601, P0602, P0603, P0604, or P062F for the 5L40-E/5L50-E transmission or DTC P0601, P0602, P0603, P0604, or P1621 for the 6L80-E transmission | |
| P0604 | Control Module Random Access Memory (RAM) | ECM | DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 for the 4.6L (LH2) engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 4.4L engine |
| Transmission Control Module (TCM) Random Access Memory (RAM) | TCM | DTC P0601, P0602, P0603, P0604, or P062F for the 5L40-E/5L50-E transmission or DTC P0601, P0602, P0603, P0604, or P1621 for the 6L80-E transmission | |
| P0606 | Control Module Internal Performance | ECM | DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610 for the 4.6L (LH2) engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 4.4L engine |
| P0607 | Control Module Performance | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 |
| P0608 | Vehicle Speed Output Circuit | ECM | DTC P0608 |
| P060D | Control Module Accelerator Pedal Position (APP) System Performance | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 |
| P0615 | Starter Relay Control Circuit | ECM | DTC P0615 |
| P0616 | Starter Relay Control Circuit Low Voltage | ECM | DTC P0616 |
| P0617 | Starter Relay Control Circuit High Voltage | ECM | DTC P0617 |
| P0621 | Generator L-Terminal Circuit | ECM | DTC P0621 |
| P0622 | Generator F-Terminal Circuit | ECM | DTC P0622 |
| P0625 | Generator F-Terminal Circuit Low Voltage | ECM | DTC P0625 |
| P0626 | Generator F-Terminal Circuit High Voltage | ECM | DTC P0626 |
| P0627 | Fuel Pump Speed Output Circuit | ECM | DTC P0627, P1251, P1252, P1253, or P1254 |
| P0628 | Fuel Pump Relay Control Circuit Low Voltage | ECM | DTC P0628 |
| P0629 | Fuel Pump Relay Control Circuit High Voltage | ECM | DTC P0629 |
| P062F | Control Module Long Term Memory Performance | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 4.4L engine |
| Transmission Control Module (TCM) Long Term Memory Performance | TCM | DTC P0601, P0602, P0603, P0604, or P062F for the 5L40-E/5L50-E transmission | |
| P0634 | Transmission Control Module (TCM) Overtemperature | TCM | DTC P0634 |
| P0638 | Throttle Actuator Control (TAC) Command Performance | ECM | DTC P0638 |
| P0641 | 5-Volt Reference 1 Circuit | ECM | DTC P0641 |
| P0645 | Air Conditioning (A/C) Clutch Relay Control Circuit | ECM | DTC P0645, P0646, or P0647 |
| P0646 | Air Conditioning (A/C) Clutch Relay Control Circuit Low Voltage | ECM | DTC P0645, P0646, or P0647 |
| P0647 | Air Conditioning (A/C) Clutch Relay Control Circuit High Voltage | ECM | DTC P0645, P0646, or P0647 |
| P0650 | Malfunction Indicator Lamp (MIL) Control Circuit | ECM | DTC P0650 for the 4.6L (LH2) engine or DTC P0650 for the 4.4L engine |
| P0651 | 5-Volt Reference 2 Circuit | ECM | DTC P0651 |
| P0667 | Transmission Control Module (TCM) Temperature Sensor Performance | TCM | DTC P0667, P0668, or P0669 |
| P0668 | Transmission Control Module (TCM) Temperature Sensor Circuit Low Voltage | TCM | DTC P0667, P0668, or P0669 |
| P0669 | Transmission Control Module (TCM) Temperature Sensor Circuit High Voltage | TCM | DTC P0667, P0668, or P0669 |
| P0685 | Engine Controls Ignition Relay Control Circuit | ECM | DTC P0685, P0689, or P0690 |
| P0686 | Engine Control Ignition Relay Control Circuit | ECM | DTC P0686 |
| P0687 | Engine Control Ignition Relay Control Circuit High Voltage | ECM | DTC P0687 |
| P0689 | Engine Control Ignition Relay Feedback Circuit Low Voltage | ECM | DTC P0689 for the 4.6L (LH2) engine or DTC P0685, P0689, or P0690 for the 4.4L engine |
| P0690 | Engine Control Ignition Relay Feedback Circuit High Voltage | ECM | DTC P0690 for the 4.6L (LH2) engine or DTC P0685, P0689, or P0690 for the 4.4L engine |
| P0700 | Transmission Control Module (TCM) requested MIL Illumination | ECM | DTC P0700 for the 4.6L (LH2) engine or DTC P0700 for the 4.4L engine |
| P0703 | Brake Switch Circuit 2 | ECM | DTC P0703 |
| P0711 | Transmission Fluid Temperature (TFT) Sensor Performance | TCM | DTC P0711 for the 5L40-E/5L50-E transmission or DTC P0711, P0712, or P0713 for the 6L80-E transmission |
| P0712 | Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage | TCM | DTC P0712 for the 5L40-E/5L50-E transmission or DTC P0711, P0712, or P0713 for the 6L80-E transmission |
| P0713 | Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage | TCM | DTC P0713 for the 5L40-E/5L50-E transmission or DTC P0711, P0712, or P0713 for the 6L80-E transmission |
| P0716 | Input Speed Sensor Performance | TCM | DTC P0716 for the 5L40-E/5L50-E transmission or DTC P0716 or P0717 for the 6L80-E transmission |
| P0717 | Input Speed Sensor Circuit Low Voltage | TCM | DTC P0717 for the 5L40-E/5L50-E transmission or DTC P0716 or P0717 for the 6L80-E transmission |
| P0722 | Output Speed Sensor Circuit Low Voltage | TCM | DTC P0722 for the 5L40-E/5L50-E transmission or DTC P0722 or P0723 for the 6L80-E transmission |
| P0723 | Output Speed Sensor Circuit Intermittent | TCM | DTC P0723 for the 5L40-E/5L50-E transmission or DTC P0722 or P0723 for the 6L80-E transmission |
| P0727 | Engine Speed-No Signal | TCM | DTC P0727 |
| P0736 | Incorrect Reverse Ratio | TCM | DTC P0736 |
| P0741 | Torque Converter Clutch (TCC) System-Stuck Off | TCM | DTC P0741 for the 5L40-E/5L50-E transmission or DTC P0741 or P0742 for the 6L80-E transmission |
| P0742 | Torque Converter Clutch (TCC) System-Stuck On | TCM | DTC P0742 for the 5L40-E/5L50-E transmission or DTC P0741 or P0742 for the 6L80-E transmission |
| P0748 | Pressure Control (PC) Solenoid Control Circuit | TCM | DTC P0748 |
| P0751 | 1-2 Shift Solenoid Valve Performance-No First, Fourth or Fifth Gear | TCM | DTC P0751 for the 5L40-E/5L50-E transmission or DTC P0751 for the 6L80-E transmission |
| P0752 | 1-2 Shift Solenoid Valve Performance-No Second or Third Gear | TCM | DTC P0752 for the 5L40-E/5L50-E transmission or DTC P0752 for the 6L80-E transmission |
| P0756 | 2-3 Shift Solenoid Valve Performance-No First or Second Gear | TCM | DTC P0756 for the 5L40-E/5L50-E transmission or DTC P0756 for the 6L80-E transmission |
| P0757 | 2-3 Shift Solenoid Valve Performance-No Third, Fourth or Fifth Gear | TCM | DTC P0757 |
| P0761 | 4-5 Shift Solenoid Valve Performance-No Fourth Gear | TCM | DTC P0761 |
| P0762 | 4-5 Shift Solenoid Valve Performance-No Fifth Gear | TCM | DTC P0762 |
| P0776 | Clutch Pressure Control (PC) Solenoid 2 - Stuck Off | TCM | DTC P0776 or P0777 |
| P0777 | Clutch Pressure Control (PC) Solenoid 2 - Stuck On | TCM | DTC P0776 or P0777 |
| P0796 | Clutch Pressure Control (PC) Solenoid 3 - Stuck Off | TCM | DTC P0796 or P0797 |
| P0797 | Clutch Pressure Control (PC) Solenoid 3 - Stuck On | TCM | DTC P0796 or P0797 |
| P0815 | Downshift Switch Circuit | TCM | DTC P0815 for the 5L40-E/5L50-E transmission or DTC P0815, P0816, P0826, or P1876 for the 6L80-E transmission |
| P0816 | Downshift Switch Circuit | TCM | DTC P0816 for the 5L40-E/5L50-E transmission or DTC P0815, P0816, P0826, or P1876 for the 6L80-E transmission |
| P0826 | Up and Down Shift Switch Circuit | TCM | DTC P0826 for the 5L40-E/5L50-E transmission or DTC P0815, P0816, P0826, or P1876 for the 6L80-E transmission |
| P0842 | Transmission Fluid Pressure (TFP) Switch 1 Circuit Low Voltage | TCM | DTC P0842 or P0843 |
| P0843 | Transmission Fluid Pressure (TFP) Switch 1 Circuit High Voltage | TCM | DTC P0842 or P0843 |
| P0850 | Park/Neutral Position (PNP) Switch Circuit | TCM | DTC P0850 |
| P0872 | Transmission Fluid Pressure (TFP) Switch 3 Circuit Low Voltage | TCM | DTC P0872 or P0873 |
| P0873 | Transmission Fluid Pressure (TFP) Switch 3 Circuit High Voltage | TCM | DTC P0872 or P0873 |
| P0877 | Transmission Fluid Pressure (TFP) Switch 4 Circuit Low Voltage | TCM | DTC P0877 or P0878 |
| P0878 | Transmission Fluid Pressure (TFP) Switch 4 Circuit High Voltage | TCM | DTC P0877 or P0878 |
| P0897 | Transmission Fluid Life | TCM | DTC P0897 |
| P0961 | Line Pressure Control (PC) Solenoid System Performance | TCM | DTC P0961, P0962 or P0963 |
| P0962 | Line Pressure Control (PC) Solenoid Control Circuit Low Voltage | TCM | DTC P0961, P0962 or P0963 |
| P0963 | Line Pressure Control (PC) Solenoid Control Circuit High Voltage | TCM | DTC P0961, P0962 or P0963 |
| P0965 | Clutch Pressure Control (PC) Solenoid 2 System Performance | TCM | DTC P0965, P0966 or P0967 |
| P0966 | Clutch Pressure Control (PC) Solenoid 2 Control Circuit Low Voltage | TCM | DTC P0965, P0966 or P0967 |
| P0967 | Clutch Pressure Control (PC) Solenoid 2 Control Circuit High Voltage | TCM | DTC P0965, P0966 or P0967 |
| P0969 | Clutch Pressure Control (PC) Solenoid 3 System Performance | TCM | DTC P0969, P0970 or P0971 |
| P0970 | Clutch Pressure Control (PC) Solenoid 3 Control Circuit Low Voltage | TCM | DTC P0969, P0970 or P0971 |
| P0971 | Clutch Pressure Control (PC) Solenoid 3 Control Circuit High Voltage | TCM | DTC P0969, P0970 or P0971 |
| P0973 | 1-2 Shift Solenoid (SS) Control Circuit Low Voltage | TCM | DTC P0973 for the 5L40-E/5L50-E transmission or DTC P0973 or P0974 for the 6L80-E transmission |
| P0974 | 1-2 Shift Solenoid (SS) Control Circuit High Voltage | TCM | DTC P0974 for the 5L40-E/5L50-E transmission or DTC P0973 or P0974 for the 6L80-E transmission |
| P0976 | 2-3 Shift Solenoid (SS) Control Circuit Low Voltage | TCM | DTC P0976 for the 5L40-E/5L50-E transmission or DTC P0976 or P0977 for the 6L80-E transmission |
| P0977 | 2-3 Shift Solenoid (SS) Control Circuit High Voltage | TCM | DTC P0977 for the 5L40-E/5L50-E transmission or DTC P0976 or P0977 for the 6L80-E transmission |
| P0979 | 4-5 Shift Solenoid (SS) Valve Control Circuit Low Voltage | TCM | DTC P0979 |
| P0980 | 4-5 Shift Solenoid (SS) Valve Control Circuit High Voltage | TCM | DTC P0980 |
| P0989 | Transmission Fluid Pressure (TFP) Switch 5 Circuit Low Voltage | TCM | DTC P0989 or P0990 |
| P0990 | Transmission Fluid Pressure (TFP) Switch 5 Circuit High Voltage | TCM | DTC P0989 or P0990 |
| P1101 | Intake Air Flow System Performance | ECM | DTC P1101 |
| P1111 | Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage | ECM | DTC P1111 |
| P1112 | Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage | ECM | DTC P1112 |
| P1114 | Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage | ECM | DTC P1114 |
| P1115 | Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage | ECM | DTC P1115 |
| P1133 | HO2S Insufficient Switching Bank 1 Sensor 1 | ECM | DTC P0133, P0134, P0140, P0153, P0154, P0160, P1133, or P1153 |
| P1137 | HO2S Circuit Low Voltage During Power Enrichment Bank 1 Sensor 2 | ECM | DTC P1137 or P1157 |
| P1138 | HO2S Circuit High Voltage During Decel Fuel Cut-Off Bank 1 Sensor 2 | ECM | DTC P1138 or P1158 |
| P1153 | HO2S Insufficient Switching Bank 2 Sensor 1 | ECM | DTC P0133, P0134, P0140, P0153, P0154, P0160, P1133, or P1153 |
| P1157 | HO2S Circuit Low Voltage During Power Enrichment Bank 2 Sensor 2 | ECM | DTC P1137 or P1157 |
| P1158 | HO2S Circuit High Voltage During Decel Fuel Cut-Off Bank 2 Sensor 2 | ECM | DTC P1138 or P1158 |
| P1182 | Supercharge Inlet Pressure Sensor Performance | ECM | DTC P1182 |
| P1183 | Supercharge Inlet Pressure Sensor Circuit Low Voltage | ECM | DTC P1183 or P1184 |
| P1184 | Supercharge Inlet Pressure Sensor Circuit High Voltage | ECM | DTC P1183 or P1184 |
| P1251 | Fuel Pump Speed Control Module Performance | ECM | DTC P0627, P1251, P1252, P1253, or P1254 |
| P1252 | Fuel Pump Speed Control Module Internal Circuit | ECM | DTC P0627, P1251, P1252, P1253, or P1254 |
| P1253 | Fuel Pump Speed Control Feedback Circuit Low Voltage | ECM | DTC P0627, P1251, P1252, P1253, or P1254 |
| P1254 | Fuel Pump Speed Control Feedback Circuit High Voltage | ECM | DTC P0627, P1251, P1252, P1253, or P1254 |
| P1258 | Engine Coolant Overtemperature-Protection Mode Active | ECM | DTC P1258 |
| P1380 | Misfire Detected - Rough Road Data Not Available | ECM | DTC P1380 for the 4.6L (LH2) engine or DTC P1380 or P1381 for the 4.4L engine |
| P1381 | Misfire Detected - No Communication With Brake Control Module | ECM | DTC P1381 for the 4.6L (LH2) engine or DTC P1380 or P1381 for the 4.4L engine |
| P1400 | Cold Start Emission Reduction Control System | ECM | DTC P1400 |
| P1482 | Cooling Fan Speed Output Circuit | ECM | DTC P1482 |
| P1516 | Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance | ECM | DTC P1516, P2101, P2119, or P2176 |
| P1617 | Engine Oil Level Switch Circuit | ECM | DTC P1617 |
| P1621 | Transmission Control Module (TCM) Long Term Memory Performance | TCM | DTC P0601, P0602, P0603, P0604, or P1621 |
| P1629 | Theft Deterrent Fuel Enable Signal Not Received | ECM | DTC P1629 |
| P1630 | Theft Deterrent Learn Mode Active | ECM | DTC P1630 |
| P1631 | Theft Deterrent Fuel Enable Signal Not Correct | ECM | DTC P1631 |
| P1632 | Theft Deterrent Start Disable Signal Received | ECM | DTC P1632 |
| P1668 | Generator L - Terminal Control Circuit | ECM | DTC P1668 |
| P167A | Control Module HO2S Bank 1 Sensor 1 System Performance | ECM | DTC P167A or P167B |
| P167B | Control Module HO2S Bank 2 Sensor 1 System Performance | ECM | DTC P167A or P167B |
| P1682 | Ignition 1 Switch Circuit 2 | ECM | DTC P1682 |
| P1684 | Transmission Control Module (TCM) Power Up Temperature Sensor Performance | TCM | DTC P1684, P1685 or P1686 |
| P1685 | Transmission Control Module (TCM) Power Up Temperature Sensor Circuit Low Voltage | TCM | DTC P1684, P1685 or P1686 |
| P1686 | Transmission Control Module (TCM) Power Up Temperature Sensor Circuit High Voltage | TCM | DTC P1684, P1685 or P1686 |
| P1751 | Shift Valve 1 Performance | TCM | DTC P1751 |
| P1793 | Wheel Speed Signal | TCM | DTC P1793 |
| P1820 | Internal Mode Switch A Circuit Low Voltage | TCM | DTC P1820 |
| P1822 | Internal Mode Switch B Circuit High Voltage | TCM | DTC P1822 |
| P1823 | Internal Mode Switch P Circuit Low Voltage | TCM | DTC P1823 |
| P1825 | Internal Mode Switch-Invalid Range | TCM | DTC P1825 for the 5L40-E/5L50-E transmission or DTC P1825 or P1915 for the 6L80-E transmission |
| P1826 | Internal Mode Switch C Circuit High Voltage | TCM | DTC P1826 |
| P1831 | Pressure Control (PC) Solenoid/Shift Lock Solenoid Control Circuit Low Voltage | TCM | DTC P1831 for the 5L40-E/5L50-E transmission or DTC P1831 or P1832 for the 6L80-E transmission |
| P1832 | Pressure Control (PC) Solenoid/Shift Lock Solenoid Control Circuit Low Voltage | TCM | DTC P1832 for the 5L40-E/5L50-E transmission or DTC P1831 or P1832 for the 6L80-E transmission |
| P1833 | Torque Converter Clutch (TCC)/Shift Solenoid Control Circuit Low Voltage | TCM | DTC P1833 |
| P1834 | Torque Converter Clutch (TCC)/Shift Solenoid Control Circuit High Voltage | TCM | DTC P1834 |
| P1876 | Up and Down Shift Switch Performance-Range Switch Not in D3 | TCM | DTC P1876 for the 5L40-E/5L50-E transmission or DTC P0815, P0816, P0826, or P1876 for the 6L80-E transmission |
| P1915 | Internal Mode Switch Start/Wrong Range | TCM | DTC P1915 for the 5L40-E/5L50-E transmission or DTC P1825 or P1915 for the 6L80-E transmission |
| P2066 | Fuel Level Sensor 2 Performance | ECM | DTC P2066 or P2636 |
| P2067 | Fuel Level Sensor 2 Circuit Low Voltage | ECM | DTC P2067 |
| P2068 | Fuel Level Sensor 2 Circuit High Voltage | ECM | DTC P2068 |
| P2088 | Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 1 | ECM | DTC P2088, P2090, P2092, or P2094 |
| P2089 | Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 1 | ECM | DTC P2089, P2091, P2093, or P2095 |
| P2090 | Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 1 | ECM | DTC P2088, P2090, P2092, or P2094 |
| P2091 | Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 1 | ECM | DTC P2089, P2091, P2093, or P2095 |
| P2092 | Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 2 | ECM | DTC P2088, P2090, P2092, or P2094 |
| P2093 | Intake Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 2 | ECM | DTC P2089, P2091, P2093, or P2095 |
| P2094 | Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit Low Voltage Bank 2 | ECM | DTC P2088, P2090, P2092, or P2094 |
| P2095 | Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit High Voltage Bank 2 | ECM | DTC P2089, P2091, P2093, or P2095 |
| P2096 | Post Catalyst Fuel Trim System Low Limit Bank 1 | ECM | DTC P2096 or P2098 |
| P2097 | Post Catalyst Fuel Trim System High Limit Bank 1 | ECM | DTC P2097 or P2099 |
| P2098 | Post Catalyst Fuel Trim System Low Limit Bank 2 | ECM | DTC P2096 or P2098 |
| P2099 | Post Catalyst Fuel Trim System High Limit Bank 2 | ECM | DTC P2097 or P2099 |
| P2100 | Throttle Actuator Control (TAC) Motor Control Circuit | ECM | DTC P2100 |
| P2101 | Throttle Actuator Position Performance | ECM | DTC P2101 for the 4.6L (LH2) engine or DTC P1516, P2101, P2119, or P2176 for the 4.4L engine |
| P2108 | Throttle Actuator Control (TAC) Module Performance | ECM | DTC P2108 |
| P2119 | Throttle Closed Position Performance | ECM | DTC P2119 for the 4.6L (LH2) engine or DTC P1516, P2101, P2119, or P2176 for the 4.4L engine |
| P2120 | Accelerator Pedal Position (APP) Sensor 1 Circuit | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 |
| P2122 | Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage | ECM | DTC P2122 for the 4.6L (LH2) engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 4.4L engine |
| P2123 | Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage | ECM | DTC P2123 for the 4.6L (LH2) engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 4.4L engine |
| P2125 | Accelerator Pedal Position (APP) Sensor 2 Circuit | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 |
| P2127 | Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage | ECM | DTC P2127 for the 4.6L (LH2) engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 4.4L engine |
| P2128 | Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage | ECM | DTC P2128 for the 4.6L (LH2) engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 4.4L engine |
| P2135 | Throttle Position (TP) Sensor 1-2 Correlation | ECM | DTC P2135 for the 4.6L (LH2) engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 4.4L engine |
| P2138 | Accelerator Pedal Position (APP) Sensor 1-2 Correlation | ECM | DTC P2138 for the 4.6L (LH2) engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 4.4L engine |
| P2176 | Minimum Throttle Position Not Learned | ECM | DTC P2176 for the 4.6L (LH2) engine or DTC P1516, P2101, P2119, or P2176 for the 4.4L engine |
| P2227 | Barometric Pressure (BARO) Sensor Performance | ECM | DTC P2227 |
| P2228 | Barometric Pressure (BARO) Sensor Circuit Low Voltage | ECM | DTC P2228 or P2229 |
| P2229 | Barometric Pressure (BARO) Sensor Circuit High Voltage | ECM | DTC P2228 or P2229 |
| P2231 | HO2S Signal Circuit Shorted to Heater Circuit Bank 1 Sensor 1 | ECM | DTC P2231 or P2234 |
| P2234 | HO2S Signal Circuit Shorted to Heater Circuit Bank 2 Sensor 1 | ECM | DTC P2231 or P2234 |
| P2237 | HO2S Pumping Current Control Circuit Bank 1 Sensor 1 | ECM | DTC P2237 or P2240 |
| P2240 | HO2S Pumping Current Control Circuit Bank 2 Sensor 1 | ECM | DTC P2237 or P2240 |
| P2243 | HO2S Reference Voltage Circuit Bank 1 Sensor 1 | ECM | DTC P2243 or P2247 |
| P2247 | HO2S Reference Voltage Circuit Bank 2 Sensor 1 | ECM | DTC P2243 or P2247 |
| P2251 | HO2S Low Reference Circuit Bank 1 Sensor 1 | ECM | DTC P2251 or P2254 |
| P2254 | HO2S Low Reference Circuit Bank 2 Sensor 1 | ECM | DTC P2251 or P2254 |
| P2261 | Supercharger By-Pass Valve Stuck | ECM | DTC P2261 |
| P2300 | Ignition Coil 1 Control Circuit Low Voltage | ECM | DTC P2300, P2303, P2306, P2309, P2312, P2315, P2318, or P2321 |
| P2301 | Ignition Coil 1 Control Circuit High Voltage | ECM | DTC P2301, P2304, P2307, P2310, P2313, P2316, P2319, or P2322 |
| P2303 | Ignition Coil 2 Control Circuit Low Voltage | ECM | DTC P2300, P2303, P2306, P2309, P2312, P2315, P2318, or P2321 |
| P2304 | Ignition Coil 2 Control Circuit High Voltage | ECM | DTC P2301, P2304, P2307, P2310, P2313, P2316, P2319, or P2322 |
| P2306 | Ignition Coil 3 Control Circuit Low Voltage | ECM | DTC P2300, P2303, P2306, P2309, P2312, P2315, P2318, or P2321 |
| P2307 | Ignition Coil 3 Control Circuit High Voltage | ECM | DTC P2301, P2304, P2307, P2310, P2313, P2316, P2319, or P2322 |
| P2309 | Ignition Coil 4 Control Circuit Low Voltage | ECM | DTC P2300, P2303, P2306, P2309, P2312, P2315, P2318, or P2321 |
| P2310 | Ignition Coil 4 Control Circuit High Voltage | ECM | DTC P2301, P2304, P2307, P2310, P2313, P2316, P2319, or P2322 |
| P2312 | Ignition Coil 5 Control Circuit Low Voltage | ECM | DTC P2300, P2303, P2306, P2309, P2312, P2315, P2318, or P2321 |
| P2313 | Ignition Coil 5 Control Circuit High Voltage | ECM | DTC P2301, P2304, P2307, P2310, P2313, P2316, P2319, or P2322 |
| P2315 | Ignition Coil 6 Control Circuit Low Voltage | ECM | DTC P2300, P2303, P2306, P2309, P2312, P2315, P2318, or P2321 |
| P2316 | Ignition Coil 6 Control Circuit High Voltage | ECM | DTC P2301, P2304, P2307, P2310, P2313, P2316, P2319, or P2322 |
| P2318 | Ignition Coil 7 Control Circuit Low Voltage | ECM | DTC P2300, P2303, P2306, P2309, P2312, P2315, P2318, or P2321 |
| P2319 | Ignition Coil 7 Control Circuit High Voltage | ECM | DTC P2301, P2304, P2307, P2310, P2313, P2316, P2319, or P2322 |
| P2321 | Ignition Coil 8 Control Circuit Low Voltage | ECM | DTC P2300, P2303, P2306, P2309, P2312, P2315, P2318, or P2321 |
| P2322 | Ignition Coil 8 Control Circuit High Voltage | ECM | DTC P2301, P2304, P2307, P2310, P2313, P2316, P2319, or P2322 |
| P2500 | Generator L-Terminal Circuit Low Voltage | ECM | DTC P2500 |
| P2501 | Generator L-Terminal Circuit High Voltage | ECM | DTC P2501 |
| P2534 | Ignition 1 Switch Circuit Low Voltage | TCM | DTC P2534 |
| P2544 | Transmission Torque Request Circuit | TCM | DTC P2544 |
| Transmission Torque Request Circuit | ECM | DTC P2544 | |
| P2610 | Control Module Ignition Off Timer Performance | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 |
| P2626 | HO2S Pumping Current Trim Circuit Bank 1 Sensor 1 | ECM | DTC P2626 or P2629 |
| P2629 | HO2S Pumping Current Trim Circuit Bank 2 Sensor 1 | ECM | DTC P2626 or P2629 |
| P2636 | Fuel Transfer Pump Flow Insufficient | ECM | DTC P2066 or P2636 or DTC P2636 for the 4.6L (LH2) engine |
| P2637 | Transmission Torque Delivered Circuit | TCM | DTC P2637 |
| P2714 | Clutch Pressure Control (PC) Solenoid 4 - Stuck Off | TCM | DTC P2714 or P2715 |
| P2715 | Clutch Pressure Control (PC) Solenoid 4 - Stuck On | TCM | DTC P2714 or P2715 |
| P2719 | Clutch Pressure Control (PC) Solenoid 4 System Performance | TCM | DTC P2719, P2720 or P2721 |
| P2720 | Clutch Pressure Control (PC) Solenoid 4 Control Circuit Low Voltage | TCM | DTC P2719, P2720 or P2721 |
| P2721 | Clutch Pressure Control (PC) Solenoid 4 Control Circuit High Voltage | TCM | DTC P2719, P2720 or P2721 |
| P2723 | Clutch Pressure Control (PC) Solenoid 5 - Stuck Off | TCM | DTC P2723 or P2724 |
| P2724 | Clutch Pressure Control (PC) Solenoid 5 - Stuck On | TCM | DTC P2723 or P2724 |
| P2728 | Clutch Pressure Control (PC) Solenoid 5 System Performance | TCM | DTC P2728, P2729 or P2730 |
| P2729 | Clutch Pressure Control (PC) Solenoid 5 Control Circuit Low Voltage | TCM | DTC P2728, P2729 or P2730 |
| P2730 | Clutch Pressure Control (PC) Solenoid 5 Control Circuit High Voltage | TCM | DTC P2728, P2729 or P2730 |
| P2762 | Torque Converter Clutch (TCC) Pressure Control Solenoid System Performance | TCM | DTC P2762, P2763, or P2764 |
| P2763 | Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit High Voltage | TCM | DTC P2763 for the 5L40-E/5L50-E transmission or DTC P2762, P2763, or P2764 |
| P2764 | Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit Low Voltage | TCM | DTC P2764 for the 5L40-E/5L50-E transmission or DTC P2762, P2763, or P2764 for the 6L80-E transmission |
| P2A00 | HO2S Performance Bank 1 Sensor 1 | ECM | DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 |
| P2A01 | HO2S Performance Bank 1 Sensor 2 | ECM | DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 |
| P2A03 | HO2S Performance Bank 2 Sensor 1 | ECM | DTC P0131, P0132, P0137, P0138, P0151, P0152, P0157, P0158, P2A00, P2A01, P2A03, or P2A04 |
| U0001 | High Speed CAN Communication Bus | BCM, DCC, EBCM, ECM, ESC, TCM, VCIM | DTC U0001 |
| U0073 | GMLAN Hardware Failure | ABS, BCM, ECM/PCM, TCM | DTC U0073 |
| U0100 | Lost Communication with ECM/PCM | ABS, BCM, TCM | DTC U0100-U0299 |
| U0101 | Lost Communication with TCM | ABS, BCM, ECM/PCM, TCM | DTC U0100-U0299 |
| U0104 | Lost Communication with Distance Sensing Cruise Control (DCC) Module | ECM | DTC U0100-U0299 |
| U0107 | Lost Communication with Throttle Actuator Control Module | ECM/PCM | DTC U0100-U0299 |
| U0121 | Lost Communication with Antilock Brake System (ABS) Control Module | BCM, ECM/PCM, TCM | DTC U0100-U0299 |
| U0140 | Lost Communication with Body Control Module (BCM) | ECM | DTC U0100-U0299 |
| U1000 | Class 2 Data Link | Audio Amplifier, BCM, DDM, DDS, DPM, DRR, FTC, HUD, IPC, PDM, Radio, RCDLR, CLCM, SDM, VCIM | DTC U1000 and U1255 |
| U1017 | Lost Communication with Engine Control Module (ECM) | Audio Amplifier, CDX, DDM, DDS, DRR, FTC, HVAC, HUD, IPC, PDM, Radio, RCDLR, SDM, VCIM | DTC U1001-U1254 |
| U1024 | Lost Communication With Transmission Control Module (TCM) | DDS, DDM, DPM, FTC, IPC, HUD, PDM, Radio, RCDLR | DTC U1001-U1254 |
| U1033 | Lost Communication With Distance Sensing Cruise Control (DCC) Module | HUD | DTC U1001-U1254 |
| U1040 | Lo of Communication With Electronic Brake Control Module (EBCM) | IPC | DTC U1001-U1254 |
| U1064 | Lo of Communication With Body Control Module (BCM) | Audio Amplifier, CDX, DDM, DDS, DPM, DRR, FTC, HVAC, HUD, IPC, PDM, Radio, RCDLR, SDM, VCIM | DTC U1001-U1254 |
| U1088 | Lost Communication with Sensing and Diagnostic Module (SDM) | BCM, IPC | DTC U1001-U1254 |
| U1096 | Lost Communication with Instrument Panel Cluster (IPC) | BCM, DDM, HUD, HVAC, PDM, Radio, SDM | DTC U1001-U1254 |
| U1098 | Lost Communication with Head Up Display (HUD) | BCM, IPC | DTC U1001-U1254 |
| U1128 | Lost Communication with Radio | Audio Amplifier, CDX, DRR, IPC, HUD | DTC U1001-U1254 |
| U1129 | Lost Communication With Audio Amplifier | BCM, IPC | DTC U1001-U1254 |
| U1130 | Lost Communication With CD Changer (CDX) | Radio | DTC U1001-U1254 |
| U1137 | Lost Communication With satellite Digital Audio Reception System | Radio | DTC U1001-U1254 |
| U1151 | Lost Communication With OnStar® | IPC | DTC U1001-U1254 |
| U1153 | Lost Communication With Climate Control Panel | Audio Amplifier, BCM, DDM, IPC, HUD, PDM, Radio | DTC U1001-U1254 |
| U1160 | Lost Communication with Driver Door Module (DDM) | IPC | DTC U1001-U1254 |
| U1161 | Lost Communication with Passenger Door Module (PDM) | IPC | DTC U1001-U1254 |
| U1164 | Lost Communication with Driver Door Switch (DDS) | DDM, DPM, DRR, IPC, PDM, Radio, RCDLR | DTC U1001-U1254 |
| U1166 | Lost Communication with Driver Position Module (DPM) | IPC | DTC U1001-U1254 |
| U1177 | Lost Communication with Folding Top Controller (FTC) | Audio Amplifier, DDM, HVAC, IPC, PDM | DTC U1001-U1254 |
| U1193 | Lost Communication with Remote Control Door Lock Receiver (RCDLR) | Audio Amplifier, BCM, CDX, DDM, DRR, FTC, HVAC, HUD, IPC, PDM, Radio, SDM, VCIM | DTC U1001-U1254 |
| U1194 | Lost Communication with Steering Column Lock Control Module (CLCM) | BCM, IPC | DTC U1001-U1254 |
| U1255 | Class 2 Data Link | HVAC | DTC U1000 and U1255 |
| U1300 | Class 2 Data Link Low | DDM, DDS, HVAC, IPC, PDM, Radio, SDM, VCIM | DTC U1300, U1301, or U1305 |
| U1301 | Class 2 Data Link High | DDM, DDS, DRR, HVAC, IPC, PDM, Radio, SDM, VCIM | DTC U1300, U1301, or U1305 |
| U1305 | Class 2 Data Link Low or High | Audio Amplifier, BCM, DPM, FTC, HUD, CLCM | DTC U1300, U1301, or U1305 |
| U2100 | High Speed CAN Communication Bus | DCC, ESC, BCM, EBCM | DTC U2100 |
| U2105 | Lost Communication with Engine Control Module (ECM) | BCM, DCC, EBCM, ESC | DTC U2105-U2199 |
| U2106 | Lost Communication with Transmission Control Module (TCM) | BCM, DCC, EBCM | DTC U2105-U2199 |
| U2107 | Lost Communication with Body Control Module (BCM) | DCC, EBCM, ESC | DTC U2105-U2199 |
| U2108 | Lost Communication with Electronic Brake Control Module (EBCM) | BCM, DCC, ESC | DTC U2105-U2199 |
| U2112 | Lost Communication with Electronic Suspension Control (ESC) Module | EBCM | DTC U2105-U2199 |
| U2144 | Lost Communication with Distance Sensing Cruise Control (DCC) Module | BCM, EBCM | DTC U2105-U2199 |
| U2153 | Navigation Electronic Control Unit (ECU) - VICS Communication Circuit | Navigation Radio | DTC U2153 |
| 23 | Seat Belt Tension Sensor Circuit Out of Range | PPS | DTC 023 |
| 24 | PPS Ignition 1 Voltage Performance | PPS | DTC 024 |
| 63 | PPS Out of Calibration | PPS | DTC 063 |
| 64 | PPS Communication/ID Performance | PPS | DTC 064 |
| 65 | PPS Sensor Circuit Out of Range | PPS | DTC 065 |
Diagnostic Trouble Code (DTC) List - Vehicle
General Information
HVAC
Steering
- «Symptoms - Power Steering System»(/cadillac/xlr/i-2003-2009/remont/manual-power-steering/#power-steering-system)
- «Symptoms - Steering Wheel and Column»(/cadillac/xlr/i-2003-2009/remont/steering-column-switches/#steering-wheel-steering-column__symptoms-steering-wheel-and-column)
- «Symptoms - Steering Wheel Controls»(/cadillac/xlr/i-2003-2009/remont/steering-column-switches/#steering-wheel-steering-column__symptoms-steering-wheel-controls)
Suspension
- «Symptoms - Suspension General Diagnosis»(/cadillac/xlr/i-2003-2009/remont/suspension-front/#suspension-general-diagnosis)
- «Symptoms - Electronic Suspension Control»(/cadillac/xlr/i-2003-2009/remont/electronic-suspension/#suspension-control-system-suspension-damping__symptoms-electronic-suspension-control)
Driveline/Axle
- «Symptoms - Propeller Shaft»(/cadillac/xlr/i-2003-2009/remont/driveshaft-universal-joints/#propeller-shaft)
- «Symptoms - Wheel Drive Shafts»(/cadillac/xlr/i-2003-2009/remont/axle-shafts/#wheel-drive-shafts)
- «Symptoms - Rear Drive Axle»(/cadillac/xlr/i-2003-2009/remont/differentials-drive-axles/#rear-drive-axle)
Brakes
- «Symptoms - Hydraulic Brakes»(/cadillac/xlr/i-2003-2009/remont/mechanical-hydraulic/#hydraulic-brake-system__symptoms-hydraulic-brakes)
- «Symptoms - Park Brake»(/cadillac/xlr/i-2003-2009/remont/parking-brake-system/#parking-brake__symptoms-park-brake)
- «Symptoms - Antilock Brake System»(/cadillac/xlr/i-2003-2009/remont/anti-locktraction-control/#antilock-brake-system-with-traction-control-system-stability-control-system__symptoms-anti-lock-brake-system)
Engine
- «Symptoms - Engine Mechanical»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-46l-lh2-introduction) for the 4.6L (LH2) engine
- «Symptoms - Engine Mechanical»(/cadillac/xlr/i-2003-2009/remont/mechanical/#engine-mechanical-44l-introduction) for the 4.4L engine
- «Symptoms - Engine Cooling»(/cadillac/xlr/i-2003-2009/remont/cooling-system-mechanical/#engine-cooling-system__symptoms-engine-cooling)
- «Symptoms - Engine Electrical»(/cadillac/xlr/i-2003-2009/remont/charging-system/#battery-charging-system-and-starting-system__symptoms-engine-electrical)
- «Symptoms - Engine Controls»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-46l-lh2-troubleshooting) for the 4.6L (LH2) engine
- «Symptoms - Engine Controls»(/cadillac/xlr/i-2003-2009/remont/testing-diagnostics/#engine-controls-44l-troubleshooting) for the 4.4L engine
- «Symptoms - Engine Exhaust»(/cadillac/xlr/i-2003-2009/remont/exhaust/#engine-exhaust-system__symptoms-engine-exhaust)
Transmission/Transaxle
- «Symptoms - Automatic Transmission Shift Lock Control»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#shift-lock-control-system__symptoms-automatic-transmission-shift-lock)
- «Symptoms - Automatic Transmission»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#how-to-diagnosis-troubleshooting-the-automatic-transmission-5l40-e5l50-e-service__symptoms-automatic-transmission) for the 5L40-E/5L50-E transmission
- «Symptoms - Automatic Transmission»(/cadillac/xlr/i-2003-2009/remont/automatic-trans/#automatic-transmission-6l80e__symptoms-automatic-transmission) for the 6L80-E transmission
Body
- «Symptoms - Body Rear End»(/cadillac/xlr/i-2003-2009/remont/exterior-body-panels/#body-rear-end)
- «Symptoms - Doors»(/cadillac/xlr/i-2003-2009/remont/door-locks-anti-theft-systems/#door-system-mirror-system-window-system__symptoms-doors)
- «Symptoms - Horns»(/cadillac/xlr/i-2003-2009/remont/horns/#horn-system__symptoms-horns)
- «Symptoms - Instrument Panel, Gages and Console»(/cadillac/xlr/i-2003-2009/remont/gauges-instrument-panels/#instrument-panel-gages-and-console)
- «Symptoms - Lighting Systems»(/cadillac/xlr/i-2003-2009/remont/exterior-lights/#lighting-systems-symptoms__symptoms-lighting-systems)
- «Symptoms - Roof»(/cadillac/xlr/i-2003-2009/remont/sun-rooft-topconvertible-top/#convertible-top-system__symptoms-roof)
- «Symptoms - Seats»(/cadillac/xlr/i-2003-2009/remont/seats/#seat-system__symptoms-seats)
- «Symptoms - Stationary Windows»(/cadillac/xlr/i-2003-2009/remont/heated-glassdefoggers/#stationary-windows)
- «Symptoms - Wiper/Washer Systems»(/cadillac/xlr/i-2003-2009/remont/wiperwasher-systems/#wiper-system-washer-system__symptoms-wiperwasher-systems)
Restraints
- «Symptoms - Seat Belts»(/cadillac/xlr/i-2003-2009/remont/restraints-control-systems/#seat-belt-system__symptoms-seat-belts)
- «Symptoms - SIR»(/cadillac/xlr/i-2003-2009/remont/airbag/#supplemental-inflatable-restraint-system__symptoms-sir)
Vehicle Control Systems
Accessories
- «OnStar Symptom Diagnosis»(/cadillac/xlr/i-2003-2009/remont/entertainment-systems/#cellular-communication-systems)
- «Symptoms - Cellular Communication»(/cadillac/xlr/i-2003-2009/remont/entertainment-systems/#cellular-communication-systems__symptoms-cellular-communication)
- «Symptoms - Cruise Control»(/cadillac/xlr/i-2003-2009/remont/cruise-control-systems/#cruise-control-system__symptoms-cruise-control)
- «Symptoms - Entertainment»(/cadillac/xlr/i-2003-2009/remont/entertainment-systems/#entertainment-systems__symptoms-entertainment)
- «Symptoms - Garage Door Opener»(/cadillac/xlr/i-2003-2009/remont/accessories-control-systems/#garage-door-opener)
- «Symptoms - Keyless Entry»(/cadillac/xlr/i-2003-2009/remont/door-locks-anti-theft-systems/#keyless-entry-system)
- «Symptoms - Navigation Systems»(/cadillac/xlr/i-2003-2009/remont/navigation-system/#navigation-systems)
- «Symptoms - Object Detection»(/cadillac/xlr/i-2003-2009/remont/collisionavoidance/#object-detection-system__symptoms-object-detection)
- «Symptoms - Theft Deterrent»(/cadillac/xlr/i-2003-2009/remont/door-locks-anti-theft-systems/#theft-deterrent-system__symptoms-theft-deterrent)
Diagnostic Repair Verification
- Install any components or connectors that have been removed or replaced during diagnosis.
- Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.
- Clear the DTCs.
- Turn OFF the ignition for 60 seconds.
- If the repair was related to a DTC, duplicate the Conditions for Running the DTC and use the Freeze Frame/Failure Records, if applicable, in order to verify the DTC does not reset. If the DTC resets or another DTC is present, refer to the «Diagnostic Trouble Code (DTC) List - Vehicle»(/cadillac/xlr/i-2003-2009/remont/oem-general-information/#vehicle-dtc-information__diagnostic-trouble-code-dtc-list) and perform the appropriate diagnostic procedure. Or If the repair was symptom related, duplicate the conditions under which the customer concern occurred to verify the repair. If the customer concern reoccurs, return to «Symptoms - Vehicle»(/cadillac/xlr/i-2003-2009/remont/oem-general-information/#vehicle-dtc-information) and perform the appropriate symptom diagnostic.
DTC Symptom Description
A DTC symptom is a 2-digit number which adds additional detail to a DTC. The DTC symptom provides additional information without requiring a large increase in the number of new DTCs.
DTC Symptom Categories
The DTC symptom is made up of 2 alphanumeric digits. The first digit following the DTC indicates the DTC symptom category. There are 16 possible categories available in the range of 0 through the letter F. Currently there are 8 categories in use, 0 through 7. These 8 categories together with their definitions are given below.
| Category Number | Category Name | Category Description |
|---|---|---|
| 0 | General Electrical Failures | This category includes standard wiring failure modes, direct current quantities related by Ohm's Law and quantities related to amplitude, frequency or rate of change, and wave shape. |
| 1 | Additional General Electrical Failures | This category includes the overflow from the previous category. |
| 2 | FM/PWM (Frequency/Pulse Width Modulated) Failures | This category includes faults related to frequency modulated and pulse width modulated inputs and outputs of the electronic control module (ECU). This category also includes faults where position is determined by counts. |
| 3 | ECU Internal Failures | This category includes faults related to memory, software, and internal electrical circuitry; requiring ECU replacement. |
| 4 | ECU Programming Failures | This category includes faults related to operational software, calibrations, and options, remedied by programming the ECU. |
| 5 | Algorithm Based Failures | This category includes faults based on comparing two or more input parameters for plausibility or comparing a single parameter to itself with respect to time. |
| 6 | Mechanical Failures | This category includes faults detected by inappropriate motion in response to an ECU controlled output. |
| 7 | Bus Signal/Message Failures | This category includes faults related to bus hardware and signal integrity. This category is also used when the physical input for a signal is located in one ECU and another ECU diagnoses the circuit. |
| 8-F | Reserved by Document | Not in use at this time. |
DTC Symptom Description
DTC Symptom Subtypes
The second digit of the DTC symptom is the subtype of the DTC symptom. These subtypes and their categories, together with their definitions, are given in the following table. DTC symptom 00 is a special case. If 00 is displayed, only the base code number and its description apply. Information regarding the fault will be provided in the code setting criteria.
Example
The DTC symptoms associated with each DTC provide more information about the fault that caused that DTC. An example of a DTC displayed can be B1451 05 where the B1451 is the DTC, and 05 after the space represents the DTC symptom. While the DTC indicates that the fault is in the accessory power circuit, this DTC symptom indicates the circuit is shorted to battery or open. Another possible symptom for this code is B1451 02, where B1451 indicates the accessory power circuit, and 02 indicates the circuit is shorted to ground.
| DTC Symptom | DTC Symptom Description |
|---|---|
| 00 | No Additional Information |
| 01 | Short to Battery |
| 02 | Short to Ground |
| 03 | Voltage Below Threshold |
| 04 | Open Circuit |
| 05 | Short to Battery or Open |
| 06 | Short to Ground or Open |
| 07 | Voltage Above Threshold |
| 08 | Signal Invalid |
| 09 | Rate of Change Above Threshold |
| 0A | Rate of Change Below Threshold |
| 0B | Current Above Threshold |
| 0C | Current Below Threshold |
| 0D | Resistance Above Threshold |
| 0E | Resistance Below Threshold |
| 0F | Erratic |
| 10 | Reserved |
| 11 | Above Maximum Threshold |
| 12 | Below Minimum Threshold |
| 13 | Voltage Low/High Temperature |
| 14 | Voltage High/Low Temperature |
| 15 | Signal Rising Time Failure |
| 16 | Signal Falling Time Failure |
| 17 | Signal Shape/Waveform Failure |
| 18 | Signal Amplitude Less Than Minimum |
| 19 | Signal Amplitude Greater Than Maximum |
| 1A | Bias Level Out of Range |
| 1F | Intermittent |
| 21 | Incorrect Period |
| 22 | Low Time Less Than Minimum |
| 23 | Low Time Greater Than Maximum |
| 24 | High Time Less Than Minimum |
| 25 | High Time Greater Than Maximum |
| 26 | Frequency Too Low |
| 27 | Frequency Too High |
| 28 | Incorrect Frequency |
| 29 | Too Few Pulses |
| 2A | Too Many Pulses |
| 2B | Missing Reference |
| 2C | Reference Compare Error |
| 31 | General Checksum Failure |
| 32 | General Memory Failure |
| 33 | Special Memory Failure |
| 34 | RAM Failure |
| 35 | ROM Failure |
| 36 | EEPROM Failure |
| 37 | Watchdog/Safety Processor Failure |
| 38 | Supervision Software Failure |
| 39 | Internal Electronic Failure |
| 41 | Operational Software/Calibration Data Set Not Programmed |
| 42 | Calibration Data Set Not Programmed |
| 43 | EEPROM Error |
| 44 | Security Access Not Activated |
| 45 | Variant Not Programmed |
| 46 | Vehicle Configuration Not Programmed |
| 47 | VIN Not Programmed |
| 48 | Theft/Security Data Not Programmed |
| 49 | RAM Error |
| 4A | Checksum Error |
| 4B | Calibration Not Learned |
| 51 | Calculation Failure |
| 52 | Compare Failure |
| 53 | Temperature Low |
| 54 | Temperature High |
| 55 | Expected Number of Transitions/Events Not Reached |
| 56 | Allowable Number of Transitions/Events Exceeded |
| 57 | Expected Reaction After Event Did Not Occur |
| 58 | Incorrect Reaction After Event |
| 59 | Circuit/Component Protection Time-Out |
| 61 | Actuator Stuck |
| 62 | Actuator Stuck Open |
| 63 | Actuator Stuck Closed |
| 64 | Actuator Slipping |
| 65 | Emergency Position Not Reachable |
| 71 | Invalid Serial Data Received (Signal Validity Bit Indicates Failure) |
| 72 | Alive Counter Incorrect/Not Updated |
| 73 | Parity Error |
| 74 | Value of Signal Protection Calculation Incorrect |
| 75 | Signal Above Allowable Range |
| 76 | Signal Below Allowable Range |
| 7F | Erratic |
DTC Symptom Description
See also:
• Testing for Intermittent Conditions and Poor Connections
• Circuit Testing
• Battery Inspection/Test
• Power Distribution Schematics
• Electrical Center Identification Views
• Checking Aftermarket Accessories
• Scan Tool Does Not Power Up
• Key Fob Not Detected
• Data Link References
• Symptoms - Engine Electrical
• Engine Cranks but Does Not Run
• Engine Cranks but Does Not Run
• DTC B0001
• DTC B0005
• DTC B0012, B0013, B0014, B0016, B0017, or B0018
• DTC B0159 or B0164
• DTC B1001
• DTC B1001
• DTC B1011
• DTC B1011
• DTC B1020
• DTC B1297
• DTC B1336
• DTC B1461
• DTC B2710
• DTC B2750
• DTC B3089
• DTC B3119
• DTC B3810
• DTC C0035-C0050
• DTC C0267
• DTC C0290
• DTC C0450
• DTC C0550
• DTC C0750, C0755, C0760, or C0765
• DTC P0010, P0013, P0020, or P0023
• DTC P0010, P0013, P0020, or P0023
• DTC P0115
• DTC P0134 or P0154
• DTC P0196
• DTC P0218
• DTC P0366 or P0391
• DTC P0461
• DTC P0506 or P0507
• DTC P0651
• DTC P0816
• DTC P1258
• DTC P2123
• DTC P2763
• Symptoms - Vibration Diagnosis and Correction
• Symptoms - Power Steering System
• Symptoms - Steering Wheel and Column
• Symptoms - Steering Wheel Controls
• Symptoms - Suspension General Diagnosis
• Symptoms - Electronic Suspension Control
• Symptoms - Propeller Shaft
• Symptoms - Wheel Drive Shafts
• Symptoms - Rear Drive Axle
• Symptoms - Hydraulic Brakes
• Symptoms - Park Brake
• Symptoms - Antilock Brake System
• Symptoms - Engine Mechanical
• Symptoms - Engine Mechanical
• Symptoms - Engine Cooling
• Symptoms - Engine Exhaust
• Symptoms - Automatic Transmission Shift Lock Control
• Symptoms - Automatic Transmission
• Symptoms - Automatic Transmission
• Symptoms - Doors
• Symptoms - Horns
• Symptoms - Lighting Systems
• Symptoms - Roof
• Symptoms - Seats
• Symptoms - Stationary Windows
• Symptoms - Wiper/Washer Systems
• Symptoms - Seat Belts
• Symptoms - SIR
• Symptoms - Cellular Communication
• Symptoms - Cruise Control
• Symptoms - Entertainment
• Symptoms - Garage Door Opener
• Symptoms - Object Detection
• Symptoms - Theft Deterrent
• Diagnostic System Check - Vehicle
• Strategy Based Diagnosis
• Diagnostic Procedure Instructions
• Diagnostic Repair Verification
• Diagnostic Trouble Code (DTC) List - Vehicle
• DTC Symptom Description