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 MANUALSCHEVROLET2009CHEVY EXPRESS G2500, VAN CARGO, 4.8 CREPAIR AND DIAGNOSISBRAKESTRACTION CONTROLANTILOCK BRAKE SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC CODE INDEX
2009 Chevrolet Chevy Express G2500, Van Cargo, 4.8 C
Diagnostic Code Index
2009 Chevrolet Chevy Express G2500, Van Cargo, 4.8 CSECTION Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC C0035-C0050 | C0035 02: Left Front Wheel Speed Sensor Circuit Short to Ground C0035 05: Left Front Wheel Speed Sensor Circuit Short to Battery or Open C0035 0F: Left Front Wheel Speed Sensor Circuit Erratic Signal C0035 18: Left Front Wheel Speed Sensor Circuit Signal Amplitude Less Than Minimum C0040 02: Right Front Wheel Speed Sensor Circuit Short to Ground C0040 05: Right Front Wheel Speed Sensor Circuit Short to Battery or Open C0040 0F: Right Front Wheel Speed Sensor Circuit Erratic Signal C0040 18: Right Front Wheel Speed Sensor Circuit Signal Amplitude Less Than Minimum C0045 02: Left Rear Wheel Speed Sensor Circuit Short to Ground C0045 05: Left Rear Wheel Speed Sensor Circuit Short to Battery or Open C0045 0F: Left Rear Wheel Speed Sensor Circuit Erratic Signal C0045 18: Left Rear Wheel Speed Sensor Circuit Signal Amplitude Less Than Minimum C0050 02: Right Rear Wheel Speed Sensor Circuit Short to Ground C0050 05: Right Rear Wheel Speed Sensor Circuit Short to Battery or Open C0050 0F: Right Rear Wheel Speed Sensor Circuit Erratic Signal C0050 18: Right Rear Wheel Speed Sensor Circuit Signal Amplitude Less Than Minimum |
| DTC C0035 or C0040 | C0035 01: Left Front Wheel Speed Sensor Circuit Short to Battery C0035 02: Left Front Wheel Speed Sensor Circuit Short to Ground C0035 04: Left Front Wheel Speed Sensor Circuit Open C0035 0F: Left Front Wheel Speed Sensor Circuit Signal Erratic C0035 26: Left Front Wheel Speed Sensor Circuit Signal Frequency Too Low C0040 01: Right Front Wheel Speed Sensor Circuit Short to Battery C0040 02: Right Front Wheel Speed Sensor Circuit Short to Ground C0040 04: Right Front Wheel Speed Sensor Circuit Open C0040 0F: Right Front Wheel Speed Sensor Circuit Signal Erratic C0040 26: Right Front Wheel Speed Sensor Circuit Signal Frequency Too Low |
| DTC C0055 or P0609 | C0055 01: Rear Wheel Speed Sensor Circuit Short to Battery C0055 04: Rear Wheel Speed Sensor Open Circuit C0055 0F: Rear Wheel Speed Sensor Circuit Erratic C0055 26: Rear Wheel Speed Sensor Circuit Frequency Too Low P0609: Vehicle Speed Output Circuit |
| DTC C0110 (with JL4) | C0110 04: Pump Motor Circuit Open Circuit C0110 61: Pump Motor Circuit Actuator Stuck |
| DTC C0110 (with JL9) | C0110 04: Pump Motor Circuit Open Circuit C0110 61: Pump Motor Circuit Actuator Stuck |
| DTC C0131 | C0131 01: Antilock Brake System (ABS)/Traction Control System (TCS) Pressure Circuit Short to Battery C0131 04: ABS/TCS Pressure Circuit Short to Ground or Open C0131 5A: ABS/TCS Pressure Circuit Plausibility Failure |
| DTC C0161 | C0161 5A: Antilock Brake System (ABS) Brake Switch Circuit Plausibility Failure |
| DTC C0179 | C0179 54: System Thermal Temperature High |
| DTC C0186 or C0196 | C0186 55: Lateral Accelerometer Circuit Expected Number of Transition/Events Exceeded C0186 5A: Lateral Accelerometer Plausibility Failure C0186 0F: Lateral Accelerometer Circuit Erratic C0196 55: Yaw Rate Circuit Expected Number of Transition/Events Exceeded C0196 5A: Yaw Rate Plausibility Failure C0196 0F: Yaw Rate Circuit Erratic |
| DTC C0201 | C0201 04: Antilock Brake System (ABS) Enable Relay Contact Open Circuit |
| DTC C0242 or P0856 | C0242 75: Engine Control Module (ECM) Indicated TCS Malfunction Signal Above Allowable Range P0856: Traction Control Torque Request Circuit |
| DTC C0245 | C0245 00: Wheel Speed Sensor Frequency Error C0245 5A: Wheel Speed Sensor Frequency Plausibility Failure |
| DTC C0292 | C0292 02: VSES Combination Sensor Circuit Short To Ground C0292 07: VSES Combination Sensor Circuit Voltage Above Threshold |
| DTC C0561 | C0561 71: System Disabled Information Stored Invalid Serial Data Received invalid serial data received C0561 72: System Disabled Information Stored Invalid Serial Data Received alive counter incorrect/ not updated C0561 74: System Disabled Information Stored Invalid Serial Data Received Value of Signal Protection Calculation Incorrect |
| DTC C0710 | C0710 0F: Steering Position Signal Erratic C0710 17: Steering Position Signal Signal Shape/Waveform Failure C0710 55: Steering Position Signal Expected Number of Transitions/Events not Reached C0710 5A: Steering Position Signal Plausibility Failure |
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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.