GM Service Manual Online
For 1990-2009 cars only

DTC Number/Description

Module

DTC C1214 Solenoid Valve Relay Contact or Coil Circuit Open

ABS

DTC C1216 EBCM Commanded Pressure Release Too Long

ABS

DTC C1217 Pump Motor Shorted to Ground

ABS

DTC C1218 Pump Motor Circuit Shorted to Voltage

ABS

DTC C1221 LF Wheel Speed Sensor Input Signal is 0

ABS

DTC C1222 RF Wheel Speed Sensor Input Signal is 0

ABS

DTC C1223 LR Wheel Speed Sensor Input Signal is 0

ABS

DTC C1224 RR Wheel Speed Sensor Input Signal is 0

ABS

DTC C1225 LF Excessive Wheel Speed Variation

ABS

DTC C1226 RF Excessive Wheel Speed Variation

ABS

DTC C1227 LR Excessive Wheel Speed Variation

ABS

DTC C1228 RR Excessive Wheel Speed Variation

ABS

DTC C1232 LF Wheel Speed Circuit Open or Shorted

ABS

DTC C1233 RF Wheel Speed Circuit Open or Shorted

ABS

DTC C1234 LR Wheel Speed Circuit Open or Shorted

ABS

DTC C1235 RR Wheel Speed Circuit Open or Shorted

ABS

DTC C1236 Low System Supply Voltage

ABS

DTC C1237 High System Supply Voltage

ABS

DTC C1238 Brake Thermal Model Exceeded

ABS

DTC C1242 Pump Motor Circuit Open

ABS

DTC C1243 BPMV Pump Motor Stalled

ABS

DTC C1247 Low Brake Fluid Detected

ABS

DTC C1254 Abnormal Shutdown Detected

ABS

DTC C1255 EBCM/EBTCM Internal Malfunction

ABS

DTC C1256 EBCM/EBTCM Internal Malfunction

ABS

DTC C1261 LF Inlet Valve Solenoid Malfunction

ABS

DTC C1262 LF Outlet Valve Solenoid Malfunction

ABS

DTC C1263 RF Inlet Valve Solenoid Malfunction

ABS

DTC C1264 RF Outlet Valve Solenoid Malfunction

ABS

DTC C1265 LR Inlet Valve Solenoid Malfunction

ABS

DTC C1266 LR Outlet Valve Solenoid Malfunction

ABS

DTC C1267 RR Inlet Valve Solenoid Malfunction

ABS

DTC C1268 RR Outlet Valve Solenoid Malfunction

ABS

DTC C1272 LF TCS Valve Solenoid Malfunction

ABS

DTC C1274 RF TCS Valve Solenoid Malfunction

ABS

DTC C1276 Delivered Torque Signal Circuit Malfunction

ABS

DTC C1277 Requested Torque Signal Circuit Malfunction

ABS

DTC C1278 TCS Temporarily Inhibited By PCM

ABS

DTC C1291 Open Brake Lamp Switch Contacts During Deceleration

ABS

DTC C1293 Code C1291 Set in Previous Ignition Cycle

ABS

DTC C1294 Brake Lamp Switch Circuit Always Active

ABS

DTC C1295 Brake Lamp Switch Circuit Open

ABS

DTC C1298 PCM Class 2 Serial Data Link Malfunction

ABS