Ordered DTC List
DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | DTC Descriptor | Module That Sets the DTC | Diagnostic Procedure |
|---|---|---|---|
If any DTCs are present, diagnose any current DTCs in the following order:
|
|||
| B0004 | Vehicle Speed Information Circuit Open | Navigation Radio | DTC B0004 |
| B0012 | Passenger Frontal Deployment Loop Stage 2 Resistance Low | SDM | DTC B0012-B0044 |
| B0013 | Passenger Frontal Deployment Loop Stage 2 Open | SDM | DTC B0012-B0044 |
| B0014 | Passenger Frontal Deployment Loop Stage 2 Voltage Out of Range | SDM | DTC B0012-B0044 |
| B0016 | Passenger Frontal Deployment Loop Stage 1 Resistance Low | SDM | DTC B0012-B0044 |
| B0017 | Passenger Frontal Deployment Loop Stage 1 Open | SDM | DTC B0012-B0044 |
| B0018 | Passenger Frontal Deployment Loop Stage 1 Voltage Out of Range | SDM | DTC B0012-B0044 |
| B0022 | Driver Frontal Deployment Loop Stage 1 Resistance Low | SDM | DTC B0012-B0044 |
| B0024 | Driver Frontal Deployment Loop Stage 1 Voltage Out of Range | SDM | DTC B0012-B0044 |
| B0026 | Driver Frontal Deployment Loop Stage 1 Open | SDM | DTC B0012-B0044 |
| B0042 | Driver Frontal Deployment Loop Stage 2 Resistance Low | SDM | DTC B0012-B0044 |
| B0043 | Driver Frontal Deployment Loop Stage 2 Voltage Out of Range | SDM | DTC B0012-B0044 |
| B0044 | Driver Frontal Deployment Loop Stage 2 Open | SDM | DTC B0012-B0044 |
| B0051 | Deployment Commanded | SDM | DTC B0051 |
| B0053 | Deployment Commanded With Loop DTCs Present | SDM | DTC B0053 |
| B0057 | Passenger Pretensioner Deployment Loop Resistance Low | SDM | DTC B0057, B0058, or B0059 |
| B0058 | Passenger Pretensioner Deployment Loop Open | SDM | DTC B0057, B0058, or B0059 |
| B0059 | Passenger Pretensioner Deployment Loop Voltage Out of Range | SDM | DTC B0057, B0058, or B0059 |
| B0061 | Driver Roof Rail Deployment Loop Resistance Low | SDM | DTC B0061, B0062, or B0068 |
| B0062 | Driver Roof Rail Deployment Loop Resistance Low | SDM | DTC B0061, B0062, or B0068 |
| B0064 | Driver Pretensioner Deployment Loop Resistance Low | SDM | DTC B0064, B0065, or B0066 |
| B0065 | Driver Pretensioner Deployment Loop Open | SDM | DTC B0064, B0065, or B0066 |
| B0066 | Driver Pretensioner Deployment Loop Voltage Out of Range | SDM | DTC B0064, B0065, or B0066 |
| B0068 | Driver Pretensioner Deployment Loop Voltage Out of Range | SDM | DTC B0061, B0062, or B0068 |
| B0069 | Passenger Roof Rail Deployment Loop Resistance Low | SDM | DTC B0069, B0070, or B0071 |
| B0070 | Passenger Roof Rail Deployment Loop Open | SDM | DTC B0069, B0070, or B0071 |
| B0071 | Passenger Roof Rail Deployment Loop Voltage Out of Range | SDM | DTC B0069, B0070, or B0071 |
| 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 Range/Performance | HVAC Control Module | DTC B0159 or B0164 |
| B0164 | Passenger Compartment Temperature Sensor Circuit Range/Performance | HVAC Control Module | DTC B0159 or B0164 |
| B0174 | Output Air Temperature Sensor 1 Circuit Range/Performance | HVAC Control Module | DTC B0174, B0179, B0510, or B0515 |
| B0179 | Output Air Temperature Sensor 2 Circuit Range/Performance | HVAC Control Module | DTC B0174, B0179, B0510, or B0515 |
| B0183 | Solar Load Sensor Circuit | BCM | DTC B0183 or B0188 |
| B0188 | Solar Load Sensor 2 Circuit | BCM | DTC B0183 or B0188 |
| B0229 | Recirculate Position Feedback Circuit Range/Performance | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770 |
| B0248 | Air Flow Control 3 Circuit | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770
with CJ2 or DTC B0248, B0263, B0408, B0414, B0418, B0424, B3761, or B3770 with CJ3 |
| B0263 | Air Flow Control 6 Circuit | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770
with CJ2 or DTC B0248, B0263, B0408, B0414, B0418, B0424, B3761, or B3770 with CJ3 |
| B0268 | Air Flow Control 7 Circuit | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770 |
| B0283 | Electric Rear Defrost Circuit | PLGM | DTC B0283 |
| B0408 | Temperature Control 1 Circuit | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770
with CJ2 or DTC B0248, B0263, B0408, B0414, B0418, B0424, B3761, or B3770 with CJ3 |
| B0414 | Temperature Control 1 Feedback Circuit Range/Performance | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770
with CJ2 or DTC B0248, B0263, B0408, B0414, B0418, B0424, B3761, or B3770 with CJ3 |
| B0418 | Temperature Control 2 Circuit | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770
with CJ2 or DTC B0248, B0263, B0408, B0414, B0418, B0424, B3761, or B3770 with CJ3 |
| B0424 | Temperature Control 2 Feedback Circuit Range/Performance | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770
with CJ2 or DTC B0248, B0263, B0408, B0414, B0418, B0424, B3761, or B3770 with CJ3 |
| B0510 | Output Air Temperature Sensor 3 Circuit Range/Performance | HVAC Control Module | DTC B0174, B0179, B0510, or B0515 |
| B0515 | Output Air Temperature Sensor 4 Circuit Range/Performance | HVAC Control Module | DTC B0174, B0179, B0510, or B0515 |
| B0540 | Speedometer Circuit | IPC | DTC B0540 |
| B0560 | Tachometer Circuit | IPC | DTC B0560 |
| B0770 | All Wheel Drive (AWD) Indicator Circuit Malfunction | ATC | DTC B0770 |
| B0775 | Four Wheel Drive High Range (4HI) Indicator Circuit Malfunction | ATC | DTC B0775 |
| B0780 | Four Wheel Drive Low Range (4LO) Indicator Circuit Malfunction | ATC | DTC B0780 |
| B0785 | Two Wheel Drive High Range (2HI) Indicator Circuit Malfunction | ATC | DTC B0785 |
| B0790 | Transfer Case Neutral Indicator Circuit Malfunction | ATC | DTC B0790 |
| B0951 | Headlamps On Indicator Circuit | BCM | DTC B0951 |
| B1000 | Electronic Control Unit (ECU) Performance | Audio Amplifier, BCM, DDM, DSM, DVD Player, EGM, FPDM, HVAC Control Module, HVAC Control Module - Auxiliary, PLGM, IPC, PRM, Radio, SDM, VCIM, VTD | DTC B1000 |
| B1001 | Option Configuration Error | SDM | DTC B1001 |
| VCIM | DTC B1001 | ||
| B1004 | Keep Alive Memory (KAM) Reset | OnStar® VCIM | DTC B1004 |
| B1007 | EEPROM Write Error | OnStar® VCIM, VTD | DTC B1007 |
| B1009 | EEPROM Checksum Mismatch | OnStar® VCIM, VTD | DTC B1009 |
| B1017 | Output Driver Module Performance | PDM | DTC B1017 |
| PLGM | DTC B1017 or B3970 | ||
| B1023 | Integral Switch Performance | DDM, PDM | DTC B1023 |
| B1025 | Audio Output 1 Circuit | Radio | DTC B1025, B1035, B1045, or B1055 |
| B1035 | Audio Output 2 Circuit | Radio | DTC B1025, B1035, B1045, or B1055 |
| B1045 | Audio Output 3 Circuit | Radio | DTC B1025, B1035, B1045, or B1055 |
| B1055 | Audio Output 4 Circuit | Radio | DTC B1025, B1035, B1045, or B1055 |
| B1259 | Antenna Ground Circuit | DRR | DTC B1259 |
| B1271 | Theft Locked | Navigation Radio | DTC B1271 |
| B1372 | Device Ignition 1 Circuit Low | IPC | DTC B1372 |
| B1390 | Device Voltage Reference Input 1 Circuit | GBCM | DTC B1390 |
| B1397 | Device Voltage Reference Output Circuit Low | BCM | DTC B1397 or B2815 |
| B1440 | Power Mode Master Input Circuits Mismatch | BCM | DTC B1440 |
| B1477 | Retained Accessory Power Circuit Low | BCM | DTC B1477 |
| B1480 | Battery Rundown Protection Circuit | BCM | DTC B1480 |
| B1487 | Generator L-Terminal Circuit Low | GBCM | DTC B1487 |
| B1488 | Generator L-Terminal Circuit High | GBCM | DTC B1488 |
| B1492 | Generator F-Terminal Circuit Low | GBCM | DTC B1492 |
| B1516 | Battery Current Sensor Performance | GBCM | DTC B1516 |
| B1530 | Discard Passenger Presence System 1 | SDM | DTC B1530 |
| B1550 | Mirror Left Front or Right Front Select Switch Circuit | DDM, PDM | DTC B1550 |
| B1566 | Current Sensor Polarity Check | GBCM | DTC B1566 |
| B1720 | Mirror Up and Down Control Switch Circuit | DDM, PDM | DTC B1720 |
| B1721 | Mirror Left and Right Control Switch Circuit | DDM, PDM | DTC B1721 |
| B1723 | Mirror Motor Control Circuit 1 Performance | DDM, PDM | DTC B1723 |
| B1724 | Mirror Motor Control Circuit 2 Performance | DDM, PDM | DTC B1724 |
| B1735 | Driver Seat Front Up Switch Circuit | DSM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1740 | Driver Seat Front Down Switch Circuit | DSM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1745 | Driver Seat Rear Up Switch Circuit | DSM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1750 | Driver Seat Rear Down Switch Circuit | DSM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1755 | Driver Seat Assembly Forward Switch Circuit | DSM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1760 | Driver Seat Assembly Rearward Switch Circuit | DSM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1815 | Driver Seat Recline Forward Switch Circuit | DSM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1820 | Driver Seat Recline Rearward Switch Circuit | DSM | DTC B1735, B1740, B1745, B1750, B1755, B1760, B1815, or B1820 |
| B1825 | Driver Seat Recline Position Sensor Circuit | DSM | DTC B1825, B1850, B1860, B2355, B2365, or B2375 |
| B1830 | Driver Seat Lumbar Forward Switch Circuit | DSM | DTC B1830, B1835, B1840 or B1845 |
| B1835 | Driver Seat Lumbar Rearward Switch Circuit | DSM | DTC B1830, B1835, B1840 or B1845 |
| B1850 | Driver Seat Lumbar Horizontal Position Sensor Circuit | DSM | DTC B1825, B1850, B1860, B2355, B2365, or B2375 |
| B2355 | Driver Seat Front Vertical Position Sensor Circuit | DSM | DTC B1825, B1850, B1860, B2355, B2365, or B2375 |
| B2365 | Driver Seat Rear Vertical Position Sensor Circuit | DSM | DTC B1825, B1850, B1860, B2355, B2365, or B2375 |
| B2375 | Driver Seat Assembly Horizontal Position Sensor Circuit | DSM | DTC B1825, B1850, B1860, B2355, B2365, or B2375 |
| B2425 | Driver Seat Heater Circuit | DSM | DTC B2425 or B2430 |
| B2430 | Passenger Seat Heater Circuit | DSM | DTC B2425 or B2430 |
| B2435 | Driver Seat Back Heater Sensor Circuit | DSM | DTC B2435 or B2440 |
| B2440 | Passenger Seat Back Heater Sensor Circuit | DSM | DTC B2435 or B2440 |
| B2455 | Cellular Phone Microphone Circuit | OnStar® VCIM | DTC B2455 |
| B2462 | Global Positioning System (GPS) Signal Error | Navigation Radio | DTC B2462 |
| B2470 | Cellular Phone Antenna Circuit | OnStar® VCIM | DTC B2470 |
| B2476 | Cellular Phone Select Service Switch Malfunction | OnStar® VCIM | DTC B2476 or B2482 |
| B2482 | Cellular Phone Select Switch Range/Performance | OnStar® VCIM | DTC B2476 or B2482 |
| B2483 | Global Positioning System (GPS) Sensor Circuit Low | OnStar® VCIM | DTC B2483 or B2484 |
| B2484 | Global Positioning System (GPS) Sensor Circuit Open | OnStar® VCIM | DTC B2483 or B2484 |
| B2527 | Front Foglamps Circuit Low | BCM | DTC B2527 |
| B2530 | Front Foglamps Control Circuit | BCM | DTC B2530 |
| B2540 | Rear Foglamps Control Circuit | BCM | DTC B2540 |
| B2550 | Backup Lamps Control Circuit | BCM | DTC B2550 |
| B2575 | Headlamp Control Circuit | BCM | DTC B2575 |
| B2580 | Headlamp High Beam Control Circuit | BCM | DTC B2580 |
| B2585 | Park Lamp Control Circuit | BCM | DTC B2585 |
| B2610 | Passenger Compartment Dimming 1 Circuit | BCM | DTC B2610 |
| B2615 | Passenger Compartment Dimming 2 Circuit | BCM | DTC B2615 |
| B2620 | Display Dimming Pulse Width Modulation (PWM) Input Circuit | BCM | DTC B2620 |
| B2625 | Display Dimming Pulse Width Modulation (PWM) Output Circuit | BCM | DTC B2625 |
| B2645 | Ambient Light Sensor Circuit | BCM | DTC B2645 |
| B2697 | Headlamp Washer Request Circuit | BCM | DTC B2697 |
| B2725 | Active Transfer Case (ATC) Mode Switch Circuit Malfunction | ATC | DTC B2725 |
| B2815 | Steering Wheel Controls Illegal Resistance Value | BCM | DTC B1397 or B2815 |
| B2945 | Security System Sensor Power Circuit | BCM | DTC B2945, B2955, B2960, or B3033 |
| B2955 | Security System Sensor Data Circuit | BCM | DTC B2945, B2955, B2960, or B3033 |
| B2960 | Security System Sensor Data Incorrect but Valid | BCM | DTC B2945, B2955, B2960, or B3033 |
| B2961 | Key In Ignition Circuit | IPC | DTC B2961 |
| B3033 | Security System Indicates Tamper | BCM | DTC B2945, B2955, B2960, or B3033 |
| B3055 | No Transponder Modulation or No Transponder | VTD | DTC B3055 |
| B3060 | Unprogrammed Transponder Identification Code Received | VTD | DTC B3060 |
| B3606 | Adjustable Foot Pedal Position Sensor Circuit | Driver Seat Module | DTC B3606 |
| B3607 | Adjustable Foot Pedal Motor Circuit | Driver Seat Module | DTC B3607 |
| B3761 | Air Flow Control 3 Feedback Circuit | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770
with CJ2 or DTC B0248, B0263, B0408, B0414, B0418, B0424, B3761, or B3770 with CJ3 |
| B3770 | Air Flow Control 6 Feedback Circuit | HVAC Control Module | DTC B0229, B0248, B0263, B0268, B0408, B0414, B0418, B0424, B3761, or B3770
with CJ2 or DTC B0248, B0263, B0408, B0414, B0418, B0424, B3761, or B3770 with CJ3 |
| B3801 | Passenger Compartment Lamp Request Circuit | BCM | DTC B3801 |
| B3802 | Parklamp Request Circuit | BCM | DTC B3802 |
| B3808 | Rear Door Lock Relay Circuit | BCM | DTC B3808 |
| B3809 | Rear Door Unlock Relay Circuit | BCM | DTC B3809 |
| B3810 | Headlamp Washer Relay Circuit | BCM | DTC B3810 or B3811 |
| B3811 | Rear Washer Relay Circuit | BCM | DTC B3810 or B3811 |
| B3819 | Left Rear Window Up Control Circuit | BCM | DTC B3819, B3820, B3822, or B3823 |
| B3820 | Left Rear Window Down Control Circuit | BCM | DTC B3819, B3820, B3822, or B3823 |
| B3821 | Left Rear Window Relay Power Circuit | BCM | DTC B3821 or B3824 |
| B3822 | Right Rear Window Up Control Circuit | BCM | DTC B3819, B3820, B3822, or B3823 |
| B3823 | Right Rear Window Down Control Circuit | BCM | DTC B3819, B3820, B3822, or B3823 |
| B3824 | Right Rear Window Relay Power Circuit | BCM | DTC B3821 or B3824 |
| B3855 | Rollover Sensor Performance | SDM | DTC B3855, B3856, or B3857 |
| B3856 | Discard Rollover Sensor | SDM | DTC B3855, B3856, or B3857 |
| B3857 | Incorrect Rollover Sensor Installed | SDM | DTC B3855, B3856, or B3857 |
| B3935 | Transponder Authentication Error | VTD | DTC B3935 |
| B3970 | Rear Wiper Motor Circuit | PLGM | DTC B1017 or B3970 |
| B3976 | Unconfigured Transponder | TDM | DTC B3976 |
| C0035 | Left Front Wheel Speed Sensor Circuit | EBCM | DTC C0035 or C0040 |
| C0040 | Right Front Wheel Speed Sensor Circuit | EBCM | DTC C0035 or C0040 |
| C0045 | Left Rear Wheel Speed Sensor Circuit | EBCM | DTC C0045 or C0050 |
| C0050 | Right Rear Wheel Speed Sensor Circuit | EBCM | DTC C0045 or C0050 |
| C0110 | Pump Motor Circuit | EBCM | DTC C0110 |
| C0131 | Antilock Brake System (ABS)/Traction Control System (TCS) Pressure Circuit | EBCM | DTC C0131 |
| C0161 | Antilock Brake System (ABS)/Traction Control System (TCS) Brake Switch | EBCM | DTC C0161 |
| C0186 | Lateral Accelerometer Circuit | EBCM | DTC C0186 |
| C0196 | Yaw Rate Circuit | EBCM | DTC C0196 |
| C0201 | Antilock Brake System (ABS) Enable Relay Contact Circuit | EBCM | DTC C0201 |
| C0240 | EBCM Malfunction | EBCM | DTC C0240 |
| C0241 | Powertrain Control Module (PCM) Indicated Requested Torque Malfunction | EBCM | DTC C0241 or P0856 |
| C0244 | Pulse Width Modulated (PWM) Delivered Torque | EBCM | DTC C0244 or P1689 |
| C0245 | Wheel Speed Sensor Frequency Error | EBCM | DTC C0245 |
| C0267 | Pump Motor Circuit Open | EBCM | DTC C0267 |
| C0283 | Mode Switch Circuit Malfunction | EBCM | DTC C0283 |
| C0287 | Longitudinal Accelerometer Circuit Malfunction | EBCM | DTC C0287 |
| C0290 | Class 2 Data Link Malfunction | EBCM | DTC C0290 or C0292 |
| C0292 | Lost Communications with Engine Control System | EBCM | DTC C0290 or C0292 |
| C0300 | Rear Propshaft Speed Sensor Malfunction | ATC | DTC C0300
for the NVG 126-NP4 transfer case or DTC C0300 for the NVG 226-NP8 transfer case |
| C0305 | Front Propshaft Speed Sensor Malfunction | ATC | DTC C0305
for the NVG 126-NP4 transfer case or DTC C0305 for the NVG 226-NP8 transfer case |
| C0306 | Motor A or B Circuit Malfunction | ATC | DTC C0306
for the NVG 126-NP4 transfer case or DTC C0306 for the NVG 226-NP8 transfer case |
| C0321 | Transfer Case Lock Circuit Malfunction | ATC | DTC C0321 |
| C0327 | Encoder Circuit Malfunction | ATC | DTC C0327
for the NVG 126-NP4 transfer case or DTC C0327 for the NVG 226-NP8 transfer case |
| C0359 | Four Wheel Drive Low Range (4WD low) Discrete Output Circuit Malfunction | ATC | DTC C0359 |
| C0374 | General System Malfunction | ATC | DTC C0374
for the NVG 126-NP4 transfer case or DTC C0374 for the NVG 226-NP8 transfer case |
| C0379 | Front Axle System Malfunction | ATC | DTC C0379 |
| C0455 | Front Steering Position Sensor Circuit | EBCM | DTC C0455 |
| C0550 | Electronic Control Unit (ECU) Performance | EBCM | DTC C0550 |
| ECU Malfunction | ATC | DTC C0550
for the NVG 126-NP4 transfer case or DTC C0550 for the NVG 226-NP8 transfer case |
|
| C0558 | Calibration Data Not Programmed | EBCM | DTC C0558 |
| C0750 | Left Front Low Tire Pressure Sensor | PLGM | DTC C0750, C0755, C0760, or C0765 |
| C0755 | Right Front Low Tire Pressure Sensor | PLGM | DTC C0750, C0755, C0760, or C0765 |
| C0760 | Left Rear Low Tire Pressure Sensor | PLGM | DTC C0750, C0755, C0760, or C0765 |
| C0765 | Right Rear Low Tire Pressure Sensor | PLGM | DTC C0750, C0755, C0760, or C0765 |
| C0775 | Low Tire Pressure System Sensors Not Programmed/Learned | PLGM | DTC C0775 |
| P0013 | Exhaust Camshaft Position (CMP) Actuator Solenoid Control Circuit | ECM | DTC P0013 |
| P0014 | Exhaust Camshaft Position (CMP) System Performance | ECM | DTC P0014 |
| P0016 | Crankshaft Position (CKP) - Camshaft Position (CMP) Correlation | ECM | DTC P0016 for the 5.3L or 6.0L engine |
| P0017 | Crankshaft Position (CKP) Exhaust - Camshaft Position (CMP) Correlation | ECM | DTC P0017 |
| P0030 | HO2S Heater Control Circuit Sensor 1 | ECM | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 4.2L engine |
| HO2S Heater Control Circuit Bank 1 Sensor 1 | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 5.3L or 6.0L engine | ||
| P0036 | HO2S Heater Control Circuit Sensor 2 | ECM | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 4.2L engine |
| HO2S Heater Control Circuit Bank 1 Sensor 2 | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 5.3L or 6.0L engine | ||
| P0050 | HO2S Heater Control Circuit Bank 2 Sensor 1 | ECM | DTC P0050, P0056, P0059, P0060, P0155, or P0161 |
| P0053 | HO2S Heater Resistance Sensor 1 | ECM | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 4.2L engine |
| HO2S Heater Resistance Circuit Bank 1 Sensor 1 | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 5.3L or 6.0L engine | ||
| P0054 | HO2S Heater Resistance Sensor 2 | ECM | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 4.2L engine |
| HO2S Heater Resistance Circuit Bank 1 Sensor 2 | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 5.3L or 6.0L engine | ||
| P0056 | HO2S Heater Control Circuit Bank 2 Sensor 2 | ECM | DTC P0050, P0056, P0059, P0060, P0155, or P0161 |
| P0059 | HO2S Heater Resistance Bank 2 Sensor 1 | ECM | DTC P0050, P0056, P0059, P0060, P0155, or P0161 |
| P0060 | HO2S Heater Resistance Bank 2 Sensor 2 | ECM | DTC P0050, P0056, P0059, P0060, P0155, or P0161 |
| P0068 | Throttle Body Airflow Performance | ECM | DTC P0068 or P0121
for the 4.2L engine or DTC P0068 or P0121 for the 5.3L or 6.0L engine |
| P0101 | Mass Air Flow (MAF) Sensor Performance | ECM | DTC P0101 or P1101
for the 4.2L engine or DTC P0101 or P1101 for the 5.3L or 6.0L engine |
| P0102 | Mass Air Flow (MAF) Sensor Circuit Low Frequency | ECM | DTC P0102 or P0103
for the 4.2L engine or DTC P0102 or P0103 for the 5.3L or 6.0L engine |
| P0103 | Mass Air Flow (MAF) Sensor Circuit High Frequency | ECM | DTC P0102 or P0103
for the 4.2L engine or DTC P0102 or P0103 for the 5.3L or 6.0L engine |
| P0106 | Manifold Absolute Pressure (MAP) Sensor Performance | ECM | DTC P0106
for the 4.2L engine or DTC P0106 for the 5.3L or 6.0L engine |
| P0107 | Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage | ECM | DTC P0107 or P0108
for the 4.2L engine or DTC P0107 or P0108 for the 5.3L or 6.0L engine |
| P0108 | Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage | ECM | DTC P0107 or P0108
for the 4.2L engine or DTC P0107 or P0108 for the 5.3L or 6.0L engine |
| P0112 | Intake Air Temperature (IAT) Sensor Circuit Low Voltage | ECM | DTC P0112 or P0113
for the 4.2L engine or DTC P0112 or P0113 for the 5.3L or 6.0L engine |
| P0113 | Intake Air Temperature (IAT) Sensor Circuit High Voltage | ECM | DTC P0112 or P0113
for the 4.2L engine or DTC P0112 or P0113 for the 5.3L or 6.0L engine |
| P0116 | Engine Coolant Temperature (ECT) Sensor Performance | ECM | DTC P0116
for the 4.2L engine or DTC P0116 for the 5.3L or 6.0L engine |
| P0117 | Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage | ECM | DTC P0117 or P0118
for the 4.2L engine or DTC P0117 or P0118 for the 5.3L or 6.0L engine |
| P0118 | Engine Coolant Temperature (ECT) Sensor Circuit High Voltage | ECM | DTC P0117 or P0118
for the 4.2L engine or DTC P0117 or P0118 for the 5.3L or 6.0L engine |
| P0120 | Throttle Position (TP) Sensor 1 Circuit | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
for the 4.2L engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 5.3L or 6.0L engine |
| P0121 | Throttle Position (TP) Sensor 1 Performance | ECM | DTC P0068 or P0121
for the 4.2L engine or DTC P0068 or P0121 for the 5.3L or 6.0L engine |
| P0122 | Throttle Position (TP) Sensor 1 Circuit Low Voltage | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
for the 4.2L engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 5.3L or 6.0L engine |
| P0123 | Throttle Position (TP) Sensor 1 Circuit High Voltage | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
for the 4.2L engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 5.3L or 6.0L engine |
| P0128 | Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature | ECM | DTC P0128
for the 4.2L engine or DTC P0128 for the 5.3L or 6.0L engine |
| P0131 | HO2S Circuit Low Voltage Sensor 1 | ECM | DTC P0131, P0132, P0137, or P0138 for the 4.2L engine |
| HO2S Circuit Low Voltage Bank 1 Sensor 1 | DTC P0131, P0132, P0137, or P0138 for the 5.3L or 6.0L engine | ||
| P0132 | HO2S Circuit High Voltage Sensor 1 | ECM | DTC P0131, P0132, P0137, or P0138 for the 4.2L engine |
| HO2S Circuit High Voltage Bank 1 Sensor 1 | DTC P0131, P0132, P0137, or P0138 for the 5.3L or 6.0L engine | ||
| P0133 | HO2S Slow Response Sensor 1 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 for the 4.2L engine |
| HO2S Slow Response Bank 1 Sensor 1 | DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 for the 5.3L or 6.0L engine | ||
| P0134 | HO2S Circuit Insufficient Activity Sensor 1 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 for the 4.2L engine |
| HO2S Circuit Insufficient Activity Bank 1 Sensor 1 | DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 for the 5.3L or 6.0L engine | ||
| P0135 | HO2S Heater Performance Sensor 1 | ECM | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 4.2L engine |
| HO2S Heater Performance Bank 1 Sensor 1 | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 5.3L or 6.0L engine | ||
| P0137 | HO2S Circuit Low Voltage Sensor 2 | ECM | DTC P0131, P0132, P0137, or P0138 for the 4.2L engine |
| HO2S Circuit Low Voltage Bank 1 Sensor 2 | DTC P0131, P0132, P0137, or P0138 for the 5.3L or 6.0L engine | ||
| P0138 | HO2S Circuit High Voltage Sensor 2 | ECM | DTC P0131, P0132, P0137, or P0138 for the 4.2L engine |
| HO2S Circuit High Voltage Bank 1 Sensor 2 | DTC P0131, P0132, P0137, or P0138 for the 5.3L or 6.0L engine | ||
| P013A | HO2S Slow Response Rich to Lean Sensor 2 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 |
| P013B | HO2S Slow Response Lean to Rich Sensor 2 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 |
| P013E | HO2S Delayed Response Rich to Lean Sensor 2 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 |
| P013F | HO2S Delayed Response Lean to Rich Sensor 2 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 |
| P0140 | HO2S Circuit Insufficient Activity Sensor 2 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 for the 4.2L engine |
| HO2S Circuit Insufficient Activity Bank 1 Sensor 2 | DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 for the 5.3L or 6.0L engine | ||
| P0141 | HO2S Heater Performance Sensor 2 | ECM | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 4.2L engine |
| HO2S Heater Performance Sensor 2 | DTC P0030, P0036, P0053, P0054, P0135, or P0141 for the 5.3L or 6.0L engine | ||
| P0151 | HO2S Circuit Low Voltage Bank 2 Sensor 1 | ECM | DTC P0151, P0152, P0157, or P0158 |
| P0152 | HO2S Circuit High Voltage Bank 2 Sensor 1 | ECM | DTC P0151, P0152, P0157, or P0158 |
| P0153 | HO2S Slow Response Bank 2 Sensor 1 | ECM | DTC P0153, P0154, P0160, P1153, P2272, P2273, P2A03, or P2A04 |
| P0154 | HO2S Circuit Insufficient Activity Bank 2 Sensor 1 | ECM | DTC P0153, P0154, P0160, P1153, P2272, P2273, P2A03, or P2A04 |
| P0155 | HO2S Heater Performance Bank 2 Sensor 1 | ECM | DTC P0050, P0056, P0059, P0060, P0155, or P0161 |
| P0157 | HO2S Circuit Low Voltage Bank 2 Sensor 2 | ECM | DTC P0151, P0152, P0157, or P0158 |
| P0158 | HO2S Circuit High Voltage Bank 2 Sensor 2 | ECM | DTC P0151, P0152, P0157, or P0158 |
| P0160 | HO2S Circuit Insufficient Activity Bank 2 Sensor 2 | ECM | DTC P0153, P0154, P0160, P1153, P2272, P2273, P2A03, or P2A04 |
| P0161 | HO2S Heater Performance Bank 2 Sensor 2 | ECM | DTC P0050, P0056, P0059, P0060, P0155, or P0161 |
| P0171 | Fuel Trim System Lean | ECM | DTC P0171 or P0172 for the 4.2L engine |
| Fuel Trim System Lean Bank 1 | DTC P0171, P0172, P0174, or P0175 for the 5.3L or 6.0L engine | ||
| P0172 | Fuel Trim System Rich | ECM | DTC P0171 or P0172 for the 4.2L engine |
| Fuel Trim System Rich Bank 1 | DTC P0171, P0172, P0174, or P0175 for the 5.3L or 6.0L engine | ||
| P0174 | Fuel Trim System Lean Bank 2 | ECM | DTC P0171, P0172, P0174, or P0175 |
| P0175 | Fuel Trim System Rich Bank 2 | ECM | DTC P0171, P0172, P0174, or P0175 |
| P0201 | Injector 1 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, or P0206
for the 4.2L engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 5.3L or 6.0L engine |
| P0202 | Injector 2 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, or P0206
for the 4.2L engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 5.3L or 6.0L engine |
| P0203 | Injector 3 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, or P0206
for the 4.2L engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 5.3L or 6.0L engine |
| P0204 | Injector 4 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, or P0206
for the 4.2L engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 5.3L or 6.0L engine |
| P0205 | Injector 5 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, or P0206
for the 4.2L engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 5.3L or 6.0L engine |
| P0206 | Injector 6 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, or P0206
for the 4.2L engine or DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 for the 5.3L or 6.0L engine |
| P0207 | Injector 7 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 |
| P0208 | Injector 8 Control Circuit | ECM | DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208 |
| P0218 | Transmission Fluid Overtemperature | TCM | DTC P0218 |
| P0220 | Throttle Position (TP) Sensor 2 Circuit | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
for the 4.2L engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 5.3L or 6.0L engine |
| P0222 | Throttle Position (TP) Sensor 2 Circuit Low Voltage | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
for the 4.2L engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 5.3L or 6.0L engine |
| P0223 | Throttle Position (TP) Sensor 2 Circuit High Voltage | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
for the 4.2L engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 5.3L or 6.0L engine |
| P0230 | Fuel Pump Relay Control Circuit | ECM | DTC P0230
for the 4.2L engine or DTC P0230 for the 5.3L or 6.0L engine |
| P0300 | Engine Misfire Detected | ECM | DTC P0300-P0306
for the 4.2L engine or DTC P0300-P0308 for the 5.3L or 6.0L engine |
| P0301 | Cylinder 1 Misfire Detected | ECM | DTC P0300-P0306
for the 4.2L engine or DTC P0300-P0308 for the 5.3L or 6.0L engine |
| P0302 | Cylinder 2 Misfire Detected | ECM | DTC P0300-P0306
for the 4.2L engine or DTC P0300-P0308 for the 5.3L or 6.0L engine |
| P0303 | Cylinder 3 Misfire Detected | ECM | DTC P0300-P0306
for the 4.2L engine or DTC P0300-P0308 for the 5.3L or 6.0L engine |
| P0304 | Cylinder 4 Misfire Detected | ECM | DTC P0300-P0306
for the 4.2L engine or DTC P0300-P0308 for the 5.3L or 6.0L engine |
| P0305 | Cylinder 5 Misfire Detected | ECM | DTC P0300-P0306
for the 4.2L engine or DTC P0300-P0308 for the 5.3L or 6.0L engine |
| P0306 | Cylinder 6 Misfire Detected | ECM | DTC P0300-P0306
for the 4.2L engine or DTC P0300-P0308 for the 5.3L or 6.0L engine |
| P0307 | Cylinder 7 Misfire Detected | ECM | DTC P0300-P0308 |
| P0308 | Cylinder 8 Misfire Detected | ECM | DTC P0300-P0308 |
| P0315 | Crankshaft Position (CKP) System Variation Not Learned | ECM | DTC P0315
for the 4.2L engine or DTC P0315 for the 5.3L or 6.0L engine |
| P0324 | Knock Sensor (KS) 1 Module Performance | ECM | DTC P0324-P0328, P0332, or P0333 for the 4.2L engine |
| Knock Sensor (KS) Module Performance | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 for the 5.3L or 6.0L engine | ||
| P0325 | Knock Sensor (KS) 1 Circuit | ECM | DTC P0324-P0328, P0332, or P0333 for the 4.2L engine |
| Knock Sensor (KS) Circuit Bank 1 | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 for the 5.3L or 6.0L engine | ||
| P0326 | Knock Sensor (KS) 1 Performance | ECM | DTC P0324-P0328, P0332, or P0333 for the 4.2L engine |
| Knock Sensor (KS) Performance | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 for the 5.3L or 6.0L engine | ||
| P0327 | Knock Sensor (KS) 1 Circuit Low Voltage | ECM | DTC P0324-P0328, P0332, or P0333 for the 4.2L engine |
| Knock Sensor (KS) Circuit Low Voltage Bank 1 | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 for the 5.3L or 6.0L engine | ||
| P0328 | Knock Sensor (KS) 1 Circuit High Voltage | ECM | DTC P0324-P0328, P0332, or P0333 for the 4.2L engine |
| Knock Sensor (KS) Circuit High Voltage Bank 1 | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 for the 5.3L or 6.0L engine | ||
| P0330 | Knock Sensor (KS) 2 Circuit | ECM | DTC P0324-P0328, P0332, or P0333 for the 4.2L engine |
| Knock Sensor (KS) Circuit Bank 2 | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 for the 5.3L or 6.0L engine | ||
| P0332 | Knock Sensor (KS) 2 Circuit Low Voltage | ECM | DTC P0324-P0328, P0332, or P0333 for the 4.2L engine |
| Knock Sensor (KS) Circuit Low Voltage Bank 2 | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 for the 5.3L or 6.0L engine | ||
| P0333 | Knock Sensor (KS) 2 Circuit High Voltage | ECM | DTC P0324-P0328, P0332, or P0333 for the 4.2L engine |
| Knock Sensor (KS) Circuit High Voltage Bank 2 | DTC P0324, P0325, P0326, P0327, P0328, P0330, P0332, or P0333 for the 5.3L or 6.0L engine | ||
| P0335 | Crankshaft Position (CKP) Sensor Circuit | ECM | DTC P0335 or P0336
for the 4.2L engine or DTC P0335 for the 5.3L or 6.0L engine |
| P0336 | Crankshaft Position (CKP) Sensor Performance | ECM | DTC P0335 or P0336
for the 4.2L engine or DTC P0336 for the 5.3L or 6.0L engine |
| P0340 | Camshaft Position (CMP) Sensor Circuit | ECM | DTC P0340 |
| P0341 | Camshaft Position (CMP) Sensor Performance | ECM | DTC P0341 |
| P0351 | Ignition Coil 1 Control Circuit | ECM | DTC P0351-P0356
for the 4.2L engine or DTC P0351-P0358 for the 5.3L or 6.0L engine |
| P0352 | Ignition Coil 2 Control Circuit | ECM | DTC P0351-P0356
for the 4.2L engine or DTC P0351-P0358 for the 5.3L or 6.0L engine |
| P0353 | Ignition Coil 3 Control Circuit | ECM | DTC P0351-P0356
for the 4.2L engine or DTC P0351-P0358 for the 5.3L or 6.0L engine |
| P0354 | Ignition Coil 4 Control Circuit | ECM | DTC P0351-P0356
for the 4.2L engine or DTC P0351-P0358 for the 5.3L or 6.0L engine |
| P0355 | Ignition Coil 5 Control Circuit | ECM | DTC P0351-P0356
for the 4.2L engine or DTC P0351-P0358 for the 5.3L or 6.0L engine |
| P0356 | Ignition Coil 6 Control Circuit | ECM | DTC P0351-P0356
for the 4.2L engine or DTC P0351-P0358 for the 5.3L or 6.0L engine |
| P0357 | Ignition Coil 7 Control Circuit | ECM | DTC P0351-P0358 |
| P0358 | Ignition Coil 8 Control Circuit | ECM | DTC P0351-P0358 |
| P0365 | Exhaust Camshaft Position (CMP) Sensor Circuit | ECM | DTC P0365 |
| P0366 | Exhaust Camshaft Position (CMP) Sensor Performance | ECM | DTC P0366 |
| P0411 | Secondary Air Injection (AIR) System Incorrect Air Flow Detected | ECM | DTC P0411 |
| P0412 | Secondary Air Injection (AIR) Solenoid Control Circuit | ECM | DTC P0412 or P0418 |
| P0418 | Secondary Air Injection (AIR) Pump Control Circuit | ECM | DTC P0412 or P0418 |
| P0420 | Catalyst System Low Efficiency | ECM | DTC P0420 for the 4.2L engine |
| Catalyst System Low Efficiency Bank 1 | DTC P0420 or P0430 for the 5.3L or 6.0L engine | ||
| P0430 | Catalyst System Low Efficiency Bank 2 | ECM | DTC P0420 or P0430 |
| P0442 | Evaporative Emission (EVAP) System Small Leak Detected | ECM | DTC P0442
for the 4.2L engine or DTC P0442 for the 5.3L or 6.0L engine |
| P0443 | Evaporative Emission (EVAP) Purge Solenoid Control Circuit | ECM | DTC P0443 or P0449
for the 4.2L engine or DTC P0443 or P0449 for the 5.3L or 6.0L engine |
| P0446 | Evaporative Emission (EVAP) Vent System Performance | ECM | DTC P0446
for the 4.2L engine or DTC P0446 for the 5.3L or 6.0L engine |
| P0449 | Evaporative Emission (EVAP) Vent Solenoid Control Circuit | ECM | DTC P0443 or P0449
for the 4.2L engine or DTC P0443 or P0449 for the 5.3L or 6.0L engine |
| P0451 | Fuel Tank Pressure (FTP) Sensor Performance | ECM | DTC P0451, P0452, P0453, or P0454
for the 4.2L engine or DTC P0451, P0452, P0453, or P0454 for the 5.3L or 6.0L engine |
| P0452 | Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage | ECM | DTC P0451, P0452, P0453, or P0454
for the 4.2L engine or DTC P0451, P0452, P0453, or P0454 for the 5.3L or 6.0L engine |
| P0453 | Fuel Tank Pressure (FTP) Sensor Circuit High Voltage | ECM | DTC P0451, P0452, P0453, or P0454
for the 4.2L engine or DTC P0451, P0452, P0453, or P0454 for the 5.3L or 6.0L engine |
| P0454 | Fuel Tank Pressure (FTP) Sensor Circuit Intermittent | ECM | DTC P0451, P0452, P0453, or P0454
for the 4.2L engine or DTC P0451, P0452, P0453, or P0454 for the 5.3L or 6.0L engine |
| P0455 | Evaporative Emission (EVAP) System Large Leak Detected | ECM | DTC P0455
for the 4.2L engine or DTC P0455 for the 5.3L or 6.0L engine |
| P0461 | Fuel Level Sensor Performance | ECM | DTC P0461 |
| P0462 | Fuel Level Sensor Circuit Low Voltage | ECM | DTC P0462 |
| P0463 | Fuel Level Sensor Circuit High Voltage | ECM | DTC P0463 |
| P0464 | Fuel Level Sensor Circuit Intermittent | ECM | DTC P0464 |
| P0496 | Evaporative Emission (EVAP) System Flow During Non-Purge | ECM | DTC P0496
for the 4.2L engine or DTC P0496 for the 5.3L or 6.0L engine |
| P0506 | Idle Speed Low | ECM | DTC P0506 or P0507
for the 4.2L engine or DTC P0506 or P0507 for the 5.3L or 6.0L engine |
| P0507 | Idle Speed High | ECM | DTC P0506 or P0507
for the 4.2L engine or DTC P0506 or P0507 for the 5.3L or 6.0L engine |
| P0520 | Engine Oil Pressure (EOP) Sensor Circuit | ECM | DTC P0520 |
| 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 |
| P0530 | Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit | ECM | DTC P0530
with CJ2 or DTC P0530 with CJ3 |
| P0562 | System Voltage Low | ECM | DTC P0562 |
| TCM | DTC P0562 or P0563 | ||
| P0563 | System Voltage High | ECM | DTC P0563 |
| TCM | DTC P0562 or P0563 | ||
| P0567 | Cruise Control Resume Switch Circuit | ECM | DTC P0567 |
| P0568 | Cruise Control Set Switch Circuit | ECM | DTC P0568 |
| P0601 | Control Module Read Only Memory (ROM) | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| Transmission Control Module (TCM) Read Only Memory (ROM) | TCM | DTC P0601, P0602, P0603, P0604, or P062F | |
| P0602 | Control Module Not Programmed | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| Transmission Control Module (TCM) Not Programmed | TCM | DTC P0601, P0602, P0603, P0604, or P062F | |
| P0603 | Control Module Long Term Memory Reset | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| Transmission Control Module (TCM) Long Term Memory Reset | TCM | DTC P0601, P0602, P0603, P0604, or P062F | |
| P0604 | Control Module Random Access Memory (RAM) | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| Transmission Control Module (TCM) Random Access Memory (RAM) | TCM | DTC P0601, P0602, P0603, P0604, or P062F | |
| P0606 | Control Module Internal Performance | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| P0607 | Control Module Performance | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| P0608 | Vehicle Speed Output Circuit | TCM | DTC P0608 |
| P060D | Control Module Accelerator Pedal Position (APP) System Performance | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| P0621 | Generator L-Terminal Circuit | ECM | DTC P0621 |
| P0622 | Generator F-Terminal Circuit | ECM | DTC P0622 |
| P062F | Control Module Long Term Memory Performance | ECM | DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| Transmission Control Module (TCM) Long Term Memory Performance | TCM | DTC P0601, P0602, P0603, P0604, or P062F | |
| P0641 | 5-Volt Reference 1 Circuit | ECM | DTC P0641 or P0651
for the 4.2L engine or DTC P0641 or P0651 for the 5.3L or 6.0L engine |
| P0650 | Malfunction Indicator Lamp (MIL) Control Circuit | ECM | DTC P0650
for the 4.2L engine or DTC P0650 for the 5.3L or 6.0L engine |
| P0651 | 5-Volt Reference 2 Circuit | ECM | DTC P0641 or P0651
for the 4.2L engine or DTC P0641 or P0651 for the 5.3L or 6.0L engine |
| P0654 | Engine Speed Output Circuit | ECM | DTC P0654 |
| P0685 | Engine Controls Ignition Relay Control Circuit | ECM | DTC P0685, P0689, or P0690
for the 4.2L engine or DTC P0685, P0689, or P0690 for the 5.3L or 6.0L engine |
| P0689 | Engine Controls Ignition Relay Feedback Circuit Low Voltage | ECM | DTC P0685, P0689, or P0690
for the 4.2L engine or DTC P0685, P0689, or P0690 for the 5.3L or 6.0L engine |
| P0690 | Engine Controls Ignition Relay Feedback Circuit High Voltage | ECM | DTC P0685, P0689, or P0690
for the 4.2L engine or DTC P0685, P0689, or P0690 for the 5.3L or 6.0L engine |
| P0700 | Transmission Control Module (TCM) Requested MIL Illumination | ECM | DTC P0700
for the 4.2L engine or DTC P0700 for the 5.3L or 6.0L engine |
| P0705 | Transmission Range (TR) Switch Circuit | TCM | DTC P0705 |
| P0711 | Transmission Fluid Temperature (TFT) Sensor Performance | TCM | DTC P0711 |
| P0712 | Transmission Fluid Temperature (TFT) Sensor Circuit Low Voltage | TCM | DTC P0712 or P0713 |
| P0713 | Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage | TCM | DTC P0712 or P0713 |
| P0716 | Input Speed Sensor Performance | TCM | DTC P0716 or P0717 |
| P0717 | Input Speed Sensor Circuit Low Voltage | TCM | DTC P0716 or P0717 |
| P0719 | Brake Switch Circuit Low Voltage | TCM | DTC P0719 or P0724 |
| P071A | Transmission Tow Mode Switch Circuit | TCM | DTC P071A |
| P0722 | Output Speed Sensor Circuit Low Voltage | TCM | DTC P0722 or P0723 |
| P0723 | Output Speed Sensor Circuit Intermittent | TCM | DTC P0722 or P0723 |
| P0724 | Brake Switch Circuit High Voltage | TCM | DTC P0719 or P0724 |
| P0741 | Torque Converter Clutch (TCC) System - Stuck Off | TCM | DTC P0741, P0751, or P0756 |
| P0742 | Torque Converter Clutch (TCC) System - Stuck On | TCM | DTC P0742, P0752, or P0757 |
| P0751 | 1-2 Shift Solenoid (SS) Valve Performance - No First, Fourth or Fifth Gear | TCM | DTC P0741, P0751, or P0756 |
| P0752 | 1-2 Shift Solenoid (SS) Valve Performance - No Second or Third Gear | TCM | DTC P0742, P0752, or P0757 |
| P0756 | 2-3 Shift Solenoid (SS) Valve Performance - No First or Second Gear | TCM | DTC P0741, P0751, or P0756 |
| P0757 | 2-3 Shift Solenoid (SS) Valve Performance - No Third, Fourth or Fifth Gear | TCM | DTC P0742, P0752, or P0757 |
| P0787 | 3-2 Shift Solenoid (SS) Control Circuit Low Voltage | TCM | DTC P0787 or P0788 |
| P0788 | 3-2 Shift Solenoid (SS) Control Circuit High Voltage | TCM | DTC P0787 or P0788 |
| P0851 | Park/Neutral Position (PNP) Switch Circuit Low Voltage | TCM | DTC P0851 or P0852 |
| P0852 | Park/Neutral Position (PNP) Switch Circuit High Voltage | TCM | DTC P0851 or P0852 |
| P0856 | Traction Control Torque Request Circuit | ECM | DTC C0241 or P0856 |
| P0961 | Line Pressure Control (PC) Solenoid System Performance | TCM | DTC P0961 |
| P0973 | 1-2 Shift Solenoid (SS) Control Circuit Low Voltage | TCM | DTC P0973, P0976, or P2764 |
| P0974 | 1-2 Shift Solenoid (SS) Control Circuit High Voltage | TCM | DTC P0974, P0977, or P2763 |
| P0976 | 2-3 Shift Solenoid (SS) Control Circuit Low Voltage | TCM | DTC P0973, P0976, or P2764 |
| P0977 | 2-3 Shift Solenoid (SS) Control Circuit High Voltage | TCM | DTC P0974, P0977, or P2763 |
| P1101 | Intake Air Flow System Performance | ECM | DTC P0101 or P1101
for the 4.2L engine or DTC P0101 or P1101 for the 5.3L or 6.0L engine |
| P1133 | HO2S Insufficient Switching Sensor 1 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 for the 4.2L engine |
| HO2S Insufficient Switching Bank 1 Sensor 1 | DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 for the 5.3L or 6.0L engine | ||
| P1153 | HO2S Insufficient Switching Bank 2 Sensor 1 | ECM | DTC P0153, P0154, P0160, P1153, P2272, P2273, P2A03, or P2A04 |
| P1174 | Fuel Trim Cylinder Balance | ECM | DTC P1174 for the 4.2L engine |
| Fuel Trim Cylinder Balance Bank 1 | DTC P1174 or P1175 for the 5.3L or 6.0L engine | ||
| P1175 | Fuel Trim Cylinder Balance Bank 2 | ECM | DTC P1174 or P1175 |
| P1380 | Misfire Detected - Rough Road Data Not Available | ECM | DTC P1380 or P1381 |
| P1381 | Misfire Detected - No Communication With Brake Control Module | ECM | DTC P1381
for the 4.2L engine or DTC P1380 or P1381 for the 5.3L or 6.0L engine |
| P1400 | Cold Start Emission Reduction Control System | ECM | DTC P1400
for the 4.2L engine or DTC P1400 for the 5.3L or 6.0L engine |
| P1516 | Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance | ECM | DTC P1516, P2101, P2119, or P2176
for the 4.2L engine or DTC P1516, P2101, P2119, or P2176 for the 5.3L or 6.0L engine |
| P1574 | Stoplamp Switch Circuit | ECM | DTC P1574 |
| P1630 | Theft Deterrent Learn Mode Active | ECM | DTC P1630 |
| P1631 | Theft Deterrent Fuel Enable Signal Not Correct | ECM | DTC P1631 |
| P1668 | Generator L-Terminal Control Circuit | ECM | DTC P1668 |
| P1682 | Ignition 1 Switch Circuit 2 | ECM | DTC P1682
for the 4.2L engine or DTC P1682 for the 5.3L or 6.0L engine |
| P1689 | Traction Control Delivered Torque Output Circuit | ECM | DTC C0244 or P1689 |
| P1762 | Transmission Mode Switch Signal Circuit | TCM | DTC P1762 |
| P1810 | Transmission Fluid Pressure (TFP) Position Switch Circuit | TCM | DTC P1810, P1815, P1816, or P1818 |
| P1815 | Transmission Fluid Pressure (TFP) Valve Position Switch - Start in Wrong Range | TCM | DTC P1810, P1815, P1816, or P1818 |
| P1816 | Transmission Fluid Pressure (TFP) Valve Position Switch Indicates Park/Neutral (P/N) with Drive Ratio | TCM | DTC P1810, P1815, P1816, or P1818 |
| P1818 | Transmission Fluid Pressure (TFP) Valve Position Switch Indicates Drive without Drive Ratio | TCM | DTC P1810, P1815, P1816, or P1818 |
| P2101 | Control Module Throttle Actuator Position Performance | ECM | DTC P1516, P2101, P2119, or P2176
for the 4.2L engine or DTC P1516, P2101, P2119, or P2176 for the 5.3L or 6.0L engine |
| P2119 | Throttle Closed Position Performance | ECM | DTC P1516, P2101, P2119, or P2176
for the 4.2L engine or DTC P1516, P2101, P2119, or P2176 for the 5.3L or 6.0L engine |
| P2120 | Accelerator Pedal Position (APP) Sensor 1 Circuit | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138
for the 4.2L engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 5.3L or 6.0L engine |
| P2122 | Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138
for the 4.2L engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 5.3L or 6.0L engine |
| P2123 | Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138
for the 4.2L engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 5.3L or 6.0L engine |
| P2125 | Accelerator Pedal Position (APP) Sensor 2 Circuit | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138
for the 4.2L engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 5.3L or 6.0L engine |
| P2127 | Accelerator Pedal Position (APP) Sensor 2 Circuit Low Voltage | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138
for the 4.2L engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 5.3L or 6.0L engine |
| P2128 | Accelerator Pedal Position (APP) Sensor 2 Circuit High Voltage | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138
for the 4.2L engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 5.3L or 6.0L engine |
| P2135 | Throttle Position (TP) Sensor 1-2 Correlation | ECM | DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135
for the 4.2L engine or DTC P0120, P0122, P0123, P0220, P0222, P0223, or P2135 for the 5.3L or 6.0L engine |
| P2138 | Accelerator Pedal Position (APP) Sensor 1-2 Correlation | ECM | DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138
for the 4.2L engine or DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 for the 5.3L or 6.0L engine |
| P2176 | Minimum Throttle Position Not Learned | ECM | DTC P1516, P2101, P2119, or P2176
for the 4.2L engine or DTC P1516, P2101, P2119, or P2176 for the 5.3L or 6.0L engine |
| P2207 | HO2S Signal Stuck Lean Sensor 2 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 for the 4.2L engine |
| HO2S Signal Stuck Lean Bank 1 Sensor 2 | DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 for the 5.3L or 6.0L engine | ||
| P2271 | HO2S Signal Stuck Rich Sensor 2 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 for the 4.2L engine |
| HO2S Signal Stuck Rich Bank 1 Sensor 2 | DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 for the 5.3L or 6.0L engine | ||
| P2272 | HO2S Signal Stuck Lean Bank 2 Sensor 2 | ECM | DTC P0153, P0154, P0160, P1153, P2272, P2273, P2A03, or P2A04 |
| P2273 | HO2S Signal Stuck Rich Bank 2 Sensor 2 | ECM | DTC P0153, P0154, P0160, P1153, P2272, P2273, P2A03, or P2A04 |
| P2430 | Secondary Air Injection (AIR) System Pressure Sensor Circuit | ECM | DTC P2430, P2431, P2432, or P2433 |
| P2431 | Secondary Air Injection (AIR) System Pressure Sensor Performance | ECM | DTC P2430, P2431, P2432, or P2433 |
| P2432 | Secondary Air Injection (AIR) System Pressure Sensor Circuit Low Voltage | ECM | DTC P2430, P2431, P2432, or P2433 |
| P2433 | Secondary Air Injection (AIR) System Pressure Sensor Circuit High Voltage | ECM | DTC P2430, P2431, P2432, or P2433 |
| P2440 | Secondary Air Injection (AIR) System Shut-Off Valve Stuck Open | ECM | DTC P2440 |
| P2444 | Secondary Air Injection (AIR) System Pump Stuck On | ECM | DTC P2444 |
| P2534 | Ignition 1 Switch Circuit Low Voltage | TCM | DTC P2534 |
| 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
for the 4.2L engine or DTC P0601, P0602, P0603, P0604, P0606, P0607, P060D, P062F, or P2610 for the 5.3L or 6.0L engine |
| P2763 | Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit High Voltage | TCM | DTC P0974, P0977, or P2763 |
| P2764 | Torque Converter Clutch (TCC) Pressure Control (PC) Solenoid Control Circuit Low Voltage | TCM | DTC P0973, P0976, or P2764 |
| P2769 | Torque Converter Clutch (TCC) Enable Solenoid Control Circuit Low Voltage | TCM | DTC P2769 or P2770 |
| P2770 | Torque Converter Clutch (TCC) Enable Solenoid Control Circuit High Voltage | TCM | DTC P2769 or P2770 |
| P2771 | Four Wheel Drive (4WD) Low Switch Circuit | ECM | DTC P2771 |
| P2A00 | HO2S Circuit Closed Loop (CL) Performance Sensor 1 | ECM | DTC P0133, P0134, P013A, P013B, P013E, P013F, P0140, P1133, P2270, P2271, or P2A00 |
| P2A01 | HO2S Performance Bank 1 Sensor 2 | ECM | DTC P0133, P0134, P0140, P1133, P2270, P2271, P2A00, or P2A01 |
| P2A04 | HO2S Performance Bank 2 Sensor 2 | ECM | DTC P0153, P0154, P0160, P1153, P2272, P2273, P2A03, or P2A04 |
| P3400 | Cylinder Deactivation System Performance | ECM | DTC P3400 |
| P3401 | Cylinder 1 Deactivation Solenoid Control Circuit | ECM | DTC P3401, P3425, P3441, or P3449 |
| P3425 | Cylinder 4 Deactivation Solenoid Control Circuit | ECM | DTC P3401, P3425, P3441, or P3449 |
| P3441 | Cylinder 6 Deactivation Solenoid Control Circuit | ECM | DTC P3401, P3425, P3441, or P3449 |
| P3449 | Cylinder 7 Deactivation Solenoid Control Circuit | ECM | DTC P3401, P3425, P3441, or P3449 |
| U0001 | High Speed CAN Communication Bus | ECM, TCM | DTC U0001 |
| U0073 | Control Module Communication Bus A Off | ECM, TCM | DTC U0073 |
| U0100 | Lost Communication With Engine Control Module (ECM) | TCM | DTC U0100-U0299 |
| U0101 | Lost Communication with Transmission Control Module (TCM) | ECM | DTC U0100-U0299 |
| U1000 | Class 2 Data Link Malfunction | BCM, DDM, DRR, DSM, DVD Player, EBCM, EGM, PDM, HVAC Control Module, HVAC Control Module - Auxiliary, IPC, PLGM,, PRM, Radio, SDM, TCSCM, VCIM, VTD | DTC U1000 and U1255 |
| U1016 | Lost Communications With Engine Control Module (ECM) | BCM, DDM, DSM, DVD Player, EGM, PDM, HVAC Control Module, HVAC Control Module - Auxiliary, IPC, PRM, Radio, SDM, TCSCM, VTD | DTC U1001-U1254 |
| U1026 | Lost Communications With Transfer Case Shift Control Module (TCSCM) | IPC | DTC U1001-U1254 |
| U1041 | Lost Communications With Electronic Brake Control Module (EBCM) | IPC, SDM, TCSCM | DTC U1001-U1254 |
| U1064 | Lost Communications With Body Control Module (BCM) | DSM, DVD Player, EGM, HVAC Control Module, HVAC Control Module - Auxiliary, IPC, PRM, Radio, SDM, TCSCM, VCIM, VTD | DTC U1001-U1254 |
| U1088 | Lost Communications With Inflatable Restraint Sensing and Diagnostic Module (SDM) | IPC, Radio, VCIM | DTC U1001-U1254 |
| U1096 | Lost Communications With Instrument Panel Cluster (IPC) | BCM, EGM, PRM, SDM | DTC U1001-U1254 |
| U1128 | Lost Communications With Radio | HVAC Control Module - Auxiliary | DTC U1001-U1254 |
| U1133 | Lost Communications With DVD Player | Radio | DTC U1001-U1254 |
| U1137 | Lost Communications With Digital Radio Receiver (DRR) | Radio | DTC U1001-U1254 |
| U1151 | Lost Communications With Communication Interface Module (OnStar®) | Radio | DTC U1001-U1254 |
| U1152 | Lost Communications With HVAC Control Module | DDM, EGM, PDM, PLGM, HVAC Control Module - Auxiliary, | DTC U1001-U1254 |
| U1160 | Lost Communications With Driver Door Module (DDM) | BCM, DSM, PDM, IPC | DTC U1001-U1254 |
| U1161 | Lost Communications With Passenger Door Module (PDM) | BCM, DDM, IPC | DTC U1001-U1254 |
| U1162 | Lost Communications With Lift Gate Module (LGM) | BCM, IPC, PRM | DTC U1001-U1254 |
| U1166 | Lost Communications With Driver Seat Module (DSM) | DDM, FPDM | DTC U1001-U1254 |
| U1167 | Lost Communications With Rear Auxiliary HVAC Control Module | HVAC Control Module, Radio | DTC U1001-U1254 |
| U1173 | Lost Communications With Power Roof Module (PRM) | EGM | DTC U1001-U1254 |
| U1192 | Lost Communications With Vehicle Theft Deterrent (VTD) | BCM, | DTC U1001-U1254 |
| U1241 | Lost Communication With Scan Tool | SDM | DTC U1241 |
| U1300 | Class 2 Data Link Low | DVD Player, HVAC Control Module, IPC,, Radio, SDM, VCIM | DTC U1300, U1301, or U1305 |
| U1301 | Class 2 Data Link High | DVD Player, HVAC Control Module, IPC,, Radio, SDM, VCIM | DTC U1300, U1301, or U1305 |
| U1305 | Class 2 Data Link Low or High | BCM, DSM, HVAC Control Module - Auxiliary, PRM | DTC U1300, U1301, or U1305 |
| U1500 | Inter-Device Dedicated Bus Malfunction | OnStar® VCIM | DTC U1500 |
| U2100 | High Speed CAN Communication Bus | TCM | DTC U2100 |
| U2105 | Lost Communication With Engine Control Module (ECM) | TCM | DTC U2105-U2199 |