Diagnostic Code Index
WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC C0035-C0050, C1207-C1210, C1221-C1228, or C1232-C1235 | DTC C0035 04 Left Front Wheel Speed Sensor Circuit Open Circuit DTC C1232 00 Left Front Wheel Speed Sensor Circuit Low Input DTC C0035 26 Left Front Wheel Speed Sensor Circuit Frequency too Low DTC C1221 00 Left Front Wheel Speed Sensor Circuit Malfunction DTC C0035 27 Left Front Wheel Speed Sensor Circuit Frequency too High DTC C1225 00 Left Front Wheel Speed Sensor Circuit Performance DTC C0035 0E Left Front Wheel Speed Sensor Circuit Resistance Below Threshold DTC C1207 00 Left Front Wheel Speed Sensor Circuit High Input DTC C0035 1F Left Front Wheel Speed Sensor Circuit Intermittent DTC C1221 00 Left Front Wheel Speed Sensor Circuit Malfunction DTC C0040 04 Right Front Wheel Speed Sensor Circuit Open Circuit DTC C1233 00 Right Front Wheel Speed Sensor Circuit Low Input DTC C0040 0E Right Front Wheel Speed Sensor Circuit Resistance Below Threshold DTC C1208 00 Right Front Wheel Speed Sensor Circuit High Input DTC C0040 1F Right Front Wheel Speed Sensor Circuit Intermittent DTC C1222 00 Right Front Wheel Speed Sensor Circuit Malfunction DTC C0040 26 Right Front Wheel Speed Sensor Circuit Frequency too Low DTC C1222 00 Right Front Wheel Speed Sensor Circuit Malfunction DTC C0040 27 Right Front Wheel Speed Sensor Circuit Frequency too High DTC C1226 00 Right Front Wheel Speed Sensor Circuit Performance DTC C0045 04 Left Rear Wheel Speed Sensor Circuit Open Circuit DTC C1234 00 Left Rear Wheel Speed Sensor Circuit Low Input DTC C0045 0E Left Rear Wheel Speed Sensor Circuit Resistance Below Threshold DTC C1209 00 Left Rear Wheel Speed Sensor Circuit High Input DTC C0045 1F Left Rear Wheel Speed Sensor Circuit Intermittent DTC C1223 00 Left Rear Wheel Speed Sensor Circuit Malfunction DTC C0045 26 Left Rear Wheel Speed Sensor Circuit Frequency too Low DTC C1223 00 Left Rear Wheel Speed Sensor Circuit Malfunction DTC C0045 27 Left Rear Wheel Speed Sensor Circuit Frequency too High DTC C1227 00 Left Rear Wheel Speed Sensor Circuit Performance DTC C0050 04 Right Rear Wheel Speed Sensor Circuit Open Circuit DTC C1235 00 Right Rear Wheel Speed Sensor Circuit Low Input DTC C0050 0E Right Rear Wheel Speed Sensor Circuit Resistance Below Threshold DTC C1210 00 Right Rear Wheel Speed Sensor Circuit High Input DTC C0050 1F Right Rear Wheel Speed Sensor Circuit Intermittent DTC C1224 00 Right Rear Wheel Speed Sensor Circuit Malfunction DTC C0050 26 Right Rear Wheel Speed Sensor Circuit Frequency too Low DTC C1224 00 Right Rear Wheel Speed Sensor Circuit Malfunction DTC C0050 27 Right Rear Wheel Speed Sensor Circuit Frequency too High DTC C1228 00 Right Rear Wheel Speed Sensor Circuit Performance |
| DTC C005A | DTC C005A 00 Simultaneous Dropout of Both Wheel Speed Sensors on One Axle |
| DTC C0110, C12E0, C12E8, or C12E9 | DTC C0110 00 Pump Motor Circuit DTC C0110 61 Pump Motor Circuit Actuator Stuck DTC C12E0 00 ABS Pump Motor Performance DTC C12E8 00 ABS Pump Motor Stuck DTC C12E9 00 ABS Pump Motor Stuck On |
| DTC C012A, C128B, C128E, or C12B2-C12B4 | DTC C012A 00 Master Cylinder Pressure Sensor DTC C128E Master Cylinder Pressure Sensor DTC C012A 01 Master Cylinder Pressure Sensor Short to Battery DTC C12B3 Master Cylinder Pressure Sensor Short to Battery DTC C012A 06 Master Cylinder Pressure Sensor Short to Ground or Open DTC C12B2 Master Cylinder Pressure Sensor Short to Ground or Open DTC C012A 11 Master Cylinder Pressure Sensor Above Maximum Threshold DTC C128B Master Cylinder Pressure Sensor Above Maximum Threshold DTC C012A 0F Master Cylinder Pressure Sensor Erratic DTC C12B4 Master Cylinder Pressure Sensor Erratic |
| DTC C012B or C12B6-C12B8 | DTC C012B 01 High Pressure Accumulator Pressure Sensor Short to Battery DTC C12B7 High Pressure Accumulator Pressure Sensor Short to Battery DTC C012B 06 High Pressure Accumulator Pressure Sensor Short to Ground or Open DTC C12B6 High Pressure Accumulator Pressure Sensor Short to Ground or Open DTC C012B 0F High Pressure Accumulator Pressure Sensor Erratic DTC C12B8 High Pressure Accumulator Pressure Sensor Erratic |
| DTC C012C, C121A, C128C, C128F, C12B9, C12BA, C12BB, or C12F7 | DTC C12F7 ABS Boost Pressure Sensor and Regenerative Axle Pressure Sensor Not Plausible DTC C128F ABS Regenerative Axle Pressure Sensor Raw Offset Error DTC C012C 01 Regenerative Axle Pressure Sensor Short to Battery DTC C12BA ABS Regenerative Axle Pressure Sensor Circuit Short To Battery DTC C012C 06 Regenerative Axle Pressure Sensor Short to Ground or Open DTC C12B9 ABS Regenerative Axle Pressure Sensor Circuit Open or Short To Ground DTC C012C 11 Regenerative Axle Pressure Sensor Above Maximum Threshold DTC C128C ABS Regenerative Axle Pressure Sensor Offset Error DTC C012C 0F Regenerative Axle Pressure Sensor Erratic DTC C12BB ABS Regenerative Axle Pressure Sensor Erratic DTC C121A ABS Regenerative Axle Pressure Sensor |
| DTC C012D, C120A, C128A, C128D, C12BC, C12BD, or C12BE | DTC C012D 00 Brake Boost Regulation Pressure Sensor DTC C128D Brake Boost Regulation Pressure Sensor DTC C012D 01 Brake Boost Regulation Pressure Sensor Short to Battery DTC C12BD Brake Boost Regulation Pressure Sensor Short to Battery DTC C012D 06 Brake Boost Regulation Pressure Sensor Short to Ground or Open DTC C12BC Brake Boost Regulation Pressure Sensor Short to Ground or Open DTC C012D 11 Brake Boost Regulation Pressure Sensor Above Maximum Threshold DTC C128A Brake Boost Regulation Pressure Sensor Above Maximum Threshold DTC C012D 5A Brake Boost Regulation Pressure Sensor Plausibility Failure DTC C120A Brake Boost Regulation Pressure Sensor Plausibility Failure DTC C012D 0F Brake Boost Regulation Pressure Sensor Erratic DTC C12BE Brake Boost Regulation Pressure Sensor Erratic |
| DTC C012E or C12FE | DTC C012E 00 Hydraulic Brake Boost Pressure Loss DTC C12FE 00 ABS Pump Pressure Loss |
| DTC C012F, C12A7, C12DC, or C12DD | DTC C012F 00 Brake Boost Solenoid Valve Circuit DTC C012F 0E Brake Boost Solenoid Valve Circuit Shorted DTC C12A7 Brake Boost Solenoid Valve Circuit Performance DTC C12DC Brake Boost Solenoid Valve Circuit Malfunction DTC C12DD Brake Boost Solenoid Valve Circuit Shorted |
| DTC C0161 or C127D | DTC C0161 00 Antilock Brake System (ABS) Brake Switch Circuit DTC C127D Antilock Brake System (ABS) Brake Switch Circuit DTC C0161 04 Antilock Brake System (ABS) Brake Switch Circuit Open Circuit DTC C0161 0E Antilock Brake System (ABS) Brake Switch Circuit Resistance Below Threshold |
| DTC C0186 or C0196 | DTC C0186 00 Lateral Accelerometer Circuit DTC C0186 09 Lateral Accelerometer Rate of Change Above Threshold DTC C0186 11 Lateral Accelerometer Circuit Above Maximum Threshold DTC C0186 18 Lateral Accelerometer Circuit Signal Amplitude Less Than Minimum DTC C0186 0A Lateral Accelerometer Circuit Rate of Change Below Threshold DTC C0186 4B Lateral Accelerometer Circuit Calibration Not Learned DTC C0196 00 Yaw Rate Circuit DTC C0196 0A Yaw Rate Circuit Rate of Change Below Threshold DTC C0196 09 Yaw Rate Circuit Rate of Change Above Threshold DTC C0196 11 Yaw Rate Circuit Above Maximum Threshold DTC C0196 18 Yaw Rate Circuit Signal Amplitude Less Than Minimum |
| DTC C0201, C120D, or C120E | DTC C0201 04 Antilock Brake System (ABS) Enable Relay Contact Circuit Open DTC C120D Traction Control Power Switch Circuit Open DTC C0201 0E Antilock Brake System (ABS) Enable Relay Contact Circuit Resistance Below Threshold DTC C120E Traction Control Power Switch Circuit Shorted |
| DTC C0242 or P0856 | DTC C0242 00 Powertrain Control Module Indicated Traction Control Malfunction DTC P0856 Engine Control Module (ECM) Traction Control Torque Request Circuit |
| DTC C0245, C122E | DTC C0245 00 Wheel Speed Sensor Frequency Error DTC C122E Wheel Speed Sensor Frequency Error |
| DTC C0252 | DTC C0252 00 VSES Sensor Uncorrelated |
| DTC C0256, C12E6, or C12E7 | DTC C0256 04 Valve Relay Contact Circuit Open DTC C12E6 Valve Relay Contact Circuit Open DTC C0256 0E Valve Relay Contact Circuit Resistance Below Threshold DTC C12E7 Valve Relay Contact Circuit Resistance Below Threshold |
| DTC C0277, C120C, C129A, C129B, C129D, C129E, C12B1, or C12F8 | DTC C0277 03 BMC Primary Piston Position Sensor A and B Circuit Performance Voltage Below Threshold DTC C129A Brake Pedal Position Sensor 3 Circuit Low DTC C129D Brake Pedal Position Sensor 4 Circuit Low DTC C0277 07 BMC Primary Piston Position Sensor A and B Circuit Voltage Above Threshold DTC C129B Brake Pedal Position Sensor 3 Circuit High DTC C129E Brake Pedal Position Sensor 4 Circuit High DTC C0277 5A BMC Primary Piston Position Sensor A and B Circuit Plausibility Failure DTC C12B1 ABS Master Cylinder Pressure Sensor and Brake Pedal Position Sensor Not Plausible DTC C12F8 Brake Pedal Position Sensor 3 Not Plausible DTC C120C Brake Pedal Position Sensor 4 Not Plausible |
| DTC C0278, C129C, or C129F | DTC C0278 00 BMC Primary Piston Position Sensor Not Calibrated DTC C129C 00 Brake Pedal Position Sensor 3 Circuit Calibration DTC C129F 00 Brake Pedal Position Sensor 4 Circuit Calibration |
| DTC C0287 | DTC C0287 00 Longitudinal Acceleration Sensor Circuit DTC C0287 09 Longitudinal Acceleration Sensor Circuit Rate of Change Above Threshold DTC C0287 11 Longitudinal Acceleration Sensor Circuit Above Maximum Threshold DTC C0287 18 Longitudinal Acceleration Sensor Circuit Signal Amplitude Less Than Minimum DTC C0287 4B Longitudinal Acceleration Sensor Circuit Calibration Not Learned |
| DTC C0294, C120C, or C12F8 | DTC C0294 00 BMC Primary Piston Position Sensor A and B Correlation DTC C120C Brake Pedal Position Sensor 4 Plausibility DTC C12F8 Brake Pedal Position Sensor 3 Plausibility |
| DTC C0299 or C12FF | DTC C0299 00 Brake Booster Performance DTC C12FF 00 EBCM Internal Malfunction DTC C0299 31 Brake Booster Performance General Checksum Failure |
| DTC C0455 | DTC C0455 09 Front Steering Position Sensor Circuit Rate of Change Above Threshold DTC C0455 19 Front Steering Position Sensor Circuit Signal Amplitude Greater Than Maximum DTC C0455 39 Front Steering Position Sensor Circuit Internal Electronic Failure DTC C0455 5A Front Steering Position Sensor Circuit Plausibility Failure |
| DTC C0552 or C121D | DTC C0552 00 Improper Shutdown DTC C121D Improper Shutdown |
| DTC C0561 | DTC C0561 4B System Disabled Information Stored Calibration Not Learned DTC C0561 54 System Disabled Information Stored Temperature High - Solenoid Over Temperature DTC C0561 59 System Disabled Information Stored Component Protection Time Out - Pump Motor Run On DTC C0561 71 System Disabled Information Stored Invalid Serial Data Received DTC C0561 72 System Disabled Information Stored Alive Counter Incorrect DTC C0561 74 System Disabled Information Stored Value of Signal Protection Calculation Incorrect DTC C0561 75 System Disabled Information Stored Signal Above Allowable Range |
| DTC C056D, C121C, C121E, C121F, C123A-C1256, C126E-C127C, C12C2-C12DB, C12DE, C12DF, or C12F2-C12F6 | DTC C056D 00 ECU Hardware Performance DTC C056D 3C ECU Hardware Performance Internal Communications Failure DTC C056D 59 ECU Hardware Performance DTC C121C EBCM Internal Communication Error DTC C121E EBCM Malfunction DTC C121F EBCM Unexpected Exception DTC C123A EBCM High End Timer Watchdog DTC C123B EBCM High End Timer Program Overflow DTC C123C EBCM High End Timer RAM Fault DTC C123D EBCM Solenoid Timeout DTC C123E EBCM High End Timer Periodic Interrupt DTC C123F EBCM Serial Peripheral Interface Inoperative DTC C1255 Electronic Control Unit Performance DTC C1256 Program ROM Checksum Error DTC C126D EBCM communication Bus B RAM Error DTC C126E EBCM Stack Overrun DTC C126F EBCM Serial Peripheral Interface Performance DTC C127C EBCM Self Test Failed DTC C127E EBCM Module High Temperature DTC C12C2 ABS Left Front Isolation Solenoid Valve Driver Shorted DTC C12C5 ABS Right Front Isolation Solenoid Valve Diver Shorted DTC C12C6 ABS Left Rear Isolation Solenoid Valve Circuit Failure DTC C12C8 ABS Right Rear Isolation Solenoid Valve Circuit Failure DTC C12CC ABS Left Front Dump Solenoid Valve Driver Shorted DTC C12CF ABS Right Front Dump Solenoid Valve Driver Shorted DTC C12D0 ABS Left Rear Dump Solenoid valve Circuit Open DTC C12D1 ABS Left Rear Dump Solenoid Valve Circuit Shorted DTC C12D2 ABS Left Rear Dump Solenoid Valve Driver Shorted DTC C12D3 ABS Right Rear Dump Solenoid Valve Circuit Open DTC C12D4 ABS Right Rear Dump Solenoid Valve Circuit Shorted DTC C12D5 ABS Right Rear Dump Solenoid Driver Shorted DTC C12D6 ABS Base Brake Open Solenoid Circuit Open DTC C12D7 ABS Base Brake Open Solenoid Circuit Shorted DTC C12D8 ABS Base Brake Open Solenoid Driver Shorted DTC C12D9 ABS Base Brake Closed Solenoid Circuit Open DTC C12DA ABS Base Brake Closed Solenoid Circuit Shorted DTC C12DB ABS Base Brake Closed Solenoid Driver Shorted DTC C12DE ABS Proportioning Valve Solenoid Circuit Open DTC C12DF ABS Proportioning Valve Solenoid Driver Shorted DTC C12F2 ABS Left Rear Isolation Solenoid Valve Circuit Shorted DTC C12F3 ABS Left Rear Isolation Solenoid Circuit Performance DTC C12F4 ABS Proportioning Valve Solenoid Performance DTC C12F5 ABS Right Rear Isolation Solenoid Circuit Shorted DTC C12F6 ABS Right Rear Isolation Solenoid Performance |
| DTC C056E | DTC C056E 42 ECU Software Performance Calibration Data Set Not Programmed |
| DTC C0574 | DTC C0574 08 Circuit Board Temperature Sensor Signal Invalid DTC C0574 11 Circuit Board Temperature Sensor Above Maximum Threshold |
| DTC C0870 or C12E4 | DTC C0870 00 Device Voltage Reference Output Circuit DTC C12E4 Device Voltage Reference Output Circuit |
| DTC C0880, C12E5, or C120F | DTC C0880 00 Device Voltage Reference Output Circuit DTC C12E5 00 Brake Pedal Position Sensor Reference Circuit DTC C0880 02 Device Voltage Reference Output Circuit Short to Ground DTC C120F 00 Device Voltage Reference Output Circuit Short to Ground |
| DTC C0898 | DTC C0898 00 Controlled Shutdown Failure |
| DTC C0914 | DTC C0914 06 Device Voltage Output 1 Circuit Short to Ground or Open |
| DTC C1120 or C1121 | DTC C1120 00 Left Front Brake Hydraulic Circuit Blocked DTC C1121 00 Left Front Brake Hydraulic Circuit Leaking |
| DTC C1122 or C1123 | DTC C1122 00 Right Front Brake Hydraulic Circuit Blocked DTC C1123 00 Right Front Brake Hydraulic Circuit Leaking |
| DTC C1124-C1126 | DTC C1124 00 Base Brake Hydraulic Circuit Normally Open Valve DTC C1125 00 Hydraulic Circuit Test Duration Excessive DTC C1126 00 Base Brake Proportioning Valve Hydraulic Circuit Blocked |