GM Service Manual Online
For 1990-2009 cars only

DTC

Description

DTC C1211

DTC C1211 ABS Indicator Lamp Circuit Malfunction

DTC C1214

DTC C1214 Solenoid Valve Relay Contact or Coil Circuit Open

DTC C1216

DTC C1216 Brake Control Relay Coil Circuit Open

DTC C1217

DTC C1217 Pump Motor Relay Contact Circuit Open

DTC C1221

DTC C1221 LF Wheel Speed Sensor Input Signal is 0

DTC C1222

DTC C1222 RF Wheel Speed Sensor Input Signal is 0

DTC C1223

DTC C1223 LR Wheel Speed Sensor Input Signal is 0

DTC C1224

DTC C1224 RR Wheel Speed Sensor Input Signal is 0

DTC C1225

DTC C1225 LF Excessive Wheel Speed Variation

DTC C1226

DTC C1226 RF Excessive Wheel Speed Variation

DTC C1227

DTC C1227 LR Excessive Wheel Speed Variation

DTC C1228

DTC C1228 RR Excessive Wheel Speed Variation

DTC C1232

DTC C1232 LF Wheel Speed Circuit Open or Shorted

DTC C1233

DTC C1233 RF Wheel Speed Circuit Open or Shorted

DTC C1234

DTC C1234 LR Wheel Speed Circuit Open or Shorted

DTC C1235

DTC C1235 RR Wheel Speed Circuit Open or Shorted

DTC C1236

DTC C1236 Low System Supply Voltage

DTC C1237

DTC C1237 High System Supply Voltage

DTC C1238

DTC C1238 Brake Thermal Model Exceeded

DTC C1241

DTC C1241 Magnasteer Malfunction in Variable Effort Steering

DTC C1242

DTC C1242 BPMV Pump Motor Ground Circuit Open

DTC C1243

DTC C1243 BPMV Pump Motor Stalled

DTC C1255

DTC C1255 EBCM/EBTCM Internal Malfunction

DTC C1256

DTC C1256 EBCM/EBTCM Internal Malfunction

DTC C1261

DTC C1261 LF Inlet Valve Solenoid Malfunction

DTC C1262

DTC C1262 LF Outlet Valve Solenoid Malfunction

DTC C1263

DTC C1263 RF Inlet Valve Solenoid Malfunction

DTC C1264

DTC C1264 RF Outlet Valve Solenoid Malfunction

DTC C1265

DTC C1265 LR Inlet Valve Solenoid Malfunction

DTC C1266

DTC C1266 LR Outlet Valve Solenoid Malfunction

DTC C1267

DTC C1267 RR Inlet Valve Solenoid Malfunction

DTC C1268

DTC C1268 RR Outlet Valve Solenoid Malfunction

DTC C1271

DTC C1271 LF TCS Master Cylinder Isolation Valve Malfunction

DTC C1272

DTC C1272 LF TCS Prime Valve Malfunction

DTC C1273

DTC C1273 RF TCS Master Cylinder Isolation Valve Malfunction

DTC C1274

DTC C1274 RF TCS Prime Valve Malfunction

DTC C1275

DTC C1275 Serial Data Malfunction

DTC C1276

DTC C1276 Delivered Torque Signal Circuit Malfunction

DTC C1277

DTC C1277 Requested Torque Signal Circuit Malfunction

DTC C1278

DTC C1278 TCS Temporarily Inhibited By PCM

DTC C1291

DTC C1291 Open Brake Lamp Switch Contacts During Deceleration

DTC C1293

DTC C1293 Code C1291 Set in Previous Ignition Cycle

DTC C1294

DTC C1294 Brake Lamp Switch Circuit Always Active

DTC C1295

DTC C1295 Brake Lamp Switch Circuit Open