GM Service Manual Online
For 1990-2009 cars only

DTC/Description

DTC C0035 LF Wheel Speed Circuit Malfunction

DTC C0036 LF Wheel Speed Circuit Range/Performance

DTC C0040 RF Wheel Speed Circuit Malfunction

DTC C0041 RF Wheel Speed Circuit Range/Performance

DTC C0045 LR Wheel Speed Circuit Malfunction

DTC C0046 LR Wheel Speed Circuit Range/Performance

DTC C0050 RR Wheel Speed Circuit Malfunction

DTC C0051 RR Wheel Speed Circuit Range/Performance

DTC C0055 Rear Wheel Speed Circuit Malfunction

DTC C0056 Rear Wheel Speed CKT Range/Performance

DTC C0060 LF ABS Solenoid #1 Circuit Malfunction

DTC C0065 LF ABS Solenoid #2 Circuit Malfunction

DTC C0070 RF ABS Solenoid #1 Circuit Malfunction

DTC C0075 RF ABS Solenoid #2 Circuit Malfunction

DTC C0080 LR ABS Solenoid #1 Circuit Malfunction

DTC C0085 LR ABS Solenoid #2 Circuit Malfunction

DTC C0090 RR ABS Solenoid #1 Circuit Malfunction

DTC C0095 RR ABS Solenoid #2 Circuit Malfunction

DTC C0100 Rear ABS Solenoid #1 Circuit Malfunction

DTC C0105 Rear ABS Solenoid #2 Circuit Malfunction

DTC C0110 Pump Motor Circuit Malfunction

DTC C0121 Valve Relay Circuit Malfunction

DTC C0161 ABS/TCS Brake Switch Circuit Malfunction

DTC C0166 TCS Priming Line Valve CKT Malfunction

DTC C0171 TCS Pilot Valve Circuit Malfunction

DTC C0181 Throttle Reduction Motor CKT Malfunction

DTC C0182 Throttle Reduction Motor CKT Range Perf

DTC C0236 TCS RPM Signal Circuit Malfunction

DTC C0237 TCS Throttle Position Signal Malfunction

DTC C0238 TCS TP Sensor Comparison Malfunction

DTC C0239 TCS Spark Retard Monitoring Malfunction

DTC C0240 PCM Traction Control Not Allowed

DTC C0241 PCM Indicated Requested Torque Malf

DTC C0244 PWM Delivered Torque Malfunction

DTC C0245 Wheel Speed Sensor Frequency Error

DTC C0550 ECU Malfunction

DTC C0896 Device Voltage Range/Performance

DTC C0901 Device #2 Voltage Low

DTC U1000 Loss of Class 2 Serial Data Fault

Refer to Data Link Communications

DTC U1016 Loss of PCM Class 2 Serial Data Com

Refer to Data Link Communications

DTC U1096 IPC Class 2 Serial Data SOH Fault

Refer to Data Link Communications

DTC U1300 Class 2 Short to Ground

Refer to Data Link Communications

DTC U1301 Class 2 Short to Battery

Refer to Data Link Communications