This list contains standard Diagnostic Trouble Codes (DTCs) that are used by all manufacturers to identify vehicle problems. The codes provided below are generic and may not apply to all vehicles. Vehicle manufacturers may use manufacturer-specific DTC codes that differ slightly from the codes below.
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- Symptoms of OBD Codes: Understand the signs and issues your vehicle may display for each code.
- Root Causes of OBD Codes: Identify potential reasons behind the fault, helping you address the problem effectively.
- Expected Location of OBD Issues: Pinpoint where the issue is likely to occur, simplifying diagnostics and repair.
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| C-Code | Description |
|---|---|
| C0000 | ISO/SAE Reserved |
| C0001 | TCS Control Channel “A” Valve 1 (Subfault) |
| C0002 | TCS Control Channel “A” Valve 2 (Subfault) |
| C0003 | TCS Control Channel “B” Valve 1 (Subfault) |
| C0004 | TCS Control Channel “B” Valve 2 (Subfault) |
| C0010 | Left Front Inlet Control (Subfault) |
| C0011 | Left Front Outlet Control (Subfault) |
| C0012 | Left Front Hydraulic Release Too Long (Subfault) |
| C0014 | Right Front Inlet Control (Subfault) |
| C0015 | Right Front Outlet Control (Subfault) |
| C0016 | Right Front Hydraulic Release Too Long (Subfault) |
| C0018 | Left Rear Inlet Control (Subfault) |
| C0019 | Left Rear Outlet Control (Subfault) |
| C001A | Left Rear Hydraulic Release Too Long (Subfault) |
| C001C | Right Rear Inlet Control (Subfault) |
| C001D | Right Rear Outlet Control (Subfault) |
| C001E | Right Rear Hydraulic Release Too Long (Subfault) |
| C0020 | ABS Pump Motor Control (Subfault) |
| C0021 | Brake Booster Performance (Subfault) |
| C0022 | Brake Booster Solenoid (Subfault) |
| C0023 | Stop Lamp Control (Subfault) |
| C0030 | Left Front Tone Wheel (Subfault) |
| C0031 | Left Front Wheel Speed Sensor (Subfault) |
| C0032 | Left Front Wheel Speed Sensor Supply (Subfault) |
| C0033 | Right Front Tone Wheel (Subfault) |
| C0034 | Right Front Wheel Speed Sensor (Subfault) |
| C0035 | Right Front Wheel Speed Sensor Supply (Subfault) |
| C0036 | Left Rear Tone Wheel (Subfault) |
| C0037 | Left Rear Wheel Speed Sensor (Subfault) |
| C0038 | Left Rear Wheel Speed Sensor Supply (Subfault) |
| C0039 | Right Rear Tone Wheel (Subfault) |
| C003A | Right Rear Wheel Speed Sensor (Subfault) |
| C003B | Right Rear Wheel Speed Sensor Supply (Subfault) |
| C003C | Rear Tone Wheel (Subfault) |
| C003D | Rear Wheel Speed Sensor (Subfault) |
| C003E | Rear Wheel Speed Sensor Supply (Subfault) |
| C0040 | Brake Pedal Switch “A” (Subfault) |
| C0041 | Brake Pedal Switch “B” (Subfault) |
| C0042 | Brake Pedal Position Sensor “Circuit A” (Subfault) |
| C0043 | Brake Pedal Position Sensor “Circuit B” (Subfault) |
| C0044 | Brake Pressure Sensor “A” (Subfault) |
| C0045 | Brake Pressure Sensor “B” (Subfault) |
| C0046 | Brake Pressure Sensor “A”/”B” (Subfault) |
| C0047 | Brake Booster Pressure Sensor (Subfault) |
| C0048 | Brake Booster Travel Sensor (Subfault) |
| C0049 | Brake Fluid (Subfault) |
| C004A | Brake Lining Wear Sensor (Subfault) |
| C0051 | Steering Wheel Position Sensor (Subfault) |
| C0052 | Steering Wheel Position Sensor “Signal A” (Subfault) |
| C0053 | Steering Wheel Position Sensor “Signal B” (Subfault) |
| C0054 | Steering Wheel Position Sensor “Signal C” (Subfault) |
| C0055 | Steering Wheel Position Sensor “Signal D” (Subfault) |
| C0061 | Lateral Acceleration Sensor (Subfault) |
| C0062 | Longitudinal Acceleration Sensor (Subfault) |
| C0063 | Yaw Rate Sensor (Subfault) |
| C0064 | Roll Rate Sensor |
| C0069 | Yaw Rate/Longitude Sensors (Subfault) |
| C006A | Multi-axis Acceleration Sensor (Subfault) |
| C006B | Stability System Active Too Long (Subfault) |
| C006C | Stability System |
| C0071 | 2/4 Wheel Drive Status Input (Subfault) |
| C0072 | Brake Temperature Too High (Subfault) |
| C0073 | Delivered Driving Torque (Subfault) |
| C0074 | Requested Driving Torque (Subfault) |
| C0075 | Extended Brake Pedal Travel, output to PCM (Subfault) |
| C0076 | PWM for Traction Control (Subfault) |
| C0077 | Low Tire Pressure (Subfault) |
| C0078 | Tire Diameter (Subfault) |
| C0079 | Variable Effort Steering (Subfault) |
| C0081 | ABS Malfunction Indicator (Subfault) |
| C0082 | Brake System Malfunction Indicator (Subfault) |
| C0083 | Tire Pressure Monitor Malfunction Indicator (Subfault) |
| C0084 | Traction Active Indicator (Subfault) |
| C0085 | Traction Disable Indicator (Subfault) |
| C0086 | Vehicle Dynamics Indicator (Subfault) |
| C0089 | TCS Disable Switch (Subfault) |
| C008A | TCS Mode Control (Subfault) |
| C0100 | Rear ABS (both wheels) solenoid/motor #1 circuit malfunction |
| C0300 | Rear Propshaft Speed Sensor |
| C0700 | Level Control Accessory Inflator Switch – Circuit High |
| C1000 | Manufacturer Controlled DTC |
| C1091 | Speed Wheel Sensor All Coherency Failure |
| C1095 | ABS Hydraulic Pump Motor Circuit Failure |
| C1096 | ABS Hydraulic Pump Motor Circuit Open |
| C1097 | ABS Hydraulic Pump Motor Circuit Short To Ground |
| C1098 | ABS Hydraulic Pump Motor Circuit Short To Battery |
| C1100 | ABS Pump Switch Circuit Failure |
| C1101 | ABS Hydraulic Valve Circuit Failure |
| C1102 | ABS Acceleration Switch Circuit Failure |
| C1103 | ABS Hydraulic Brake Switch Circuit Failure |
| C1104 | Traction Control Active Lamp – Circuit Short to Battery |
| C1105 | Traction Control Disable Lamp – Circuit Short to Battery |
| C1106 | Traction Control Disable Switch Circuit Short to Battery |
| C1107 | ABS Function Enabled Input Circuit Failure |
| C1109 | Speed Control Actuator Assembly Cable Release Failure |
| C1110 | ABS Power Relay Coil Circuit Failure |
| C1111 | ABS Power Relay Coil Open Circuit |
| C1112 | ABS Power Relay Coil Short Circuit To Ground |
| C1113 | ABS Power Relay Coil Short Circuit To Battery |
| C1114 | ABS Power Relay Output Short Circuit To Ground |
| C1115 | ABS Power Relay Output Short Circuit To Battery |
| C1116 | Starter Motor Circuit Failure |
| C1117 | RPM Input Circuit Failure |
| C1123 | Vehicle Speed Sensor Input Short to Battery |
| C1124 | Input shaft speed signal missing/faulted |
| C1125 | Brake Fluid Level Sensor Input Circuit Failure |
| C1126 | Cruise Control Command Switch Assembly Circuit Failure |
| C1127 | Cruise Control Deactivator Brake Switch Circuit Failure |