Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2009G8 BASEREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2009 Pontiac G8 Base
Diagnostic Code Index
2009 Pontiac G8 BaseSECTION Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC B2745 | B2745 00: Traction Control Switch Circuit |
| DTC C0035-C0050 | C0035 00: Left Front Wheel Speed Sensor Circuit C0035 5A: Left Front Wheel Speed Sensor Circuit Plausibility Failure C0040 00: Right Front Wheel Speed Sensor Circuit C0040 5A: Right Front Wheel Speed Sensor Circuit Plausibility Failure C0045 00: Left Rear Wheel Speed Sensor Circuit C0045 5A: Left Rear Wheel Speed Sensor Circuit Plausibility Failure C0050 00: Right Rear Wheel Speed Sensor Circuit C0050 5A: Right Rear Wheel Speed Sensor Circuit Plausibility Failure |
| DTC C0060-C0095, C0100, C0105, C0121, C0141, C0146, C0151, or C0156 | C0060 00: Left Front Antilock Braking System Solenoid Valve Circuit C0065 00: Left Front Antilock Brake System Solenoid 2 Circuit C0070 00: Right Front Antilock Braking System Solenoid Valve Circuit C0075 00: Right Front Antilock Brake System Solenoid 2 Circuit C0080 00: Left Rear Antilock Braking System Solenoid Valve Circuit C0085 00: Left Rear Antilock Brake System Solenoid 2 Circuit C0090 00: Right Rear Antilock Braking System Solenoid Valve Circuit C0095 00: Right Rear Antilock Brake System Solenoid 2 Circuit C0100 00: Rear Antilock Brake System Solenoid Circuit C0105 00: Rear Antilock Brake System Solenoid 2 Circuit C0121 00: Valve Relay Circuit C0141 00: Left Traction Control System Solenoid Valve Circuit C0146 00: Left Traction Control System Solenoid 2 Circuit C0151 00: Right Traction Control System Solenoid Valve Circuit C0156 00: Right Traction Control System Solenoid 2 Circuit |
| DTC C0110 | C0110 00: Pump Motor Circuit |
| DTC C0131 | C0131 00: Antilock Brake System Pressure Circuit |
| DTC C0161 | C0161 00: Antilock Brake System Brake Switch Circuit C0161 71: Antilock Brake System Invalid Serial Data Received |
| DTC C0186 or C0196 | C0186 00: Lateral Accelerometer Circuit C0186 5A: Lateral Accelerometer Plausibility Failure C0196 00: Yaw Rate Circuit C0196 5A: Yaw Rate Circuit Plausibility Failure |
| DTC C0245 | C0245 00: Wheel Speed Sensor Frequency |
| DTC C0252 | C0252 00: VSES Sensor Uncorrelated |
| DTC C0460 | C0460 00: Steering Position Sensor C0460 12: Steering Position Sensor Below Minimum Threshold C0460 42: Steering Position Sensor Calibration Data Set Not Programmed C0460 71: Steering Position Sensor Invalid Serial Data Received C0460 5A: Steering Position Sensor Plausibility Failure |
| DTC C0561 | C0561 71: System Disabled Information Stored Invalid Serial Data Received |
| DTC C0565 | C0565 47: VIN Not Programmed (Vehicle Identification Number) C0565 71: VIN (Vehicle Identification Number) Invalid Serial Data Received |
| DTC C0569 | C0569 00: System Configuration |
| DTC P0856 | P0856: Traction Control Torque Request Signal Message Counter Incorrect |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.