GM Service Manual Online
For 1990-2009 cars only

Description

Module(s)

DTC B1004 Keep Alive Memory (KAM) in Body Control System

IPC

DTC B1652 Loss of Keep Alive Memory (KAM) in Body Control System

IPM

DTC B1658 EEPROM Checksum Error in Body Control System

IPM

DTC B1327 Device Power Circuit Low in Engine Electrical

IPC, IPM

DTC B1513 Charging System Volts Low in Engine Electrical

IPC

DTC B1514 Charging System Volts High in Engine Electrical

IPC

DTC C0635 Left Front Normal Force Circuit Malfunction in Road Sensing Suspension - RSS

RSS

DTC C0638 Left Front Normal Force Circuit High in Road Sensing Suspension - RSS

RSS

DTC C0640 Right Front Normal Force Circuit Malfunction in Road Sensing Suspension - RSS

RSS

DTC C0643 Right Front Normal Force Circuit High in Road Sensing Suspension - RSS

RSS

DTC C0710 Steering Position Signal Malfunction in Road Sensing Suspension - RSS

RSS

DTC C1211 ABS Indicator Lamp Circuit Malfunction

EBCM

DTC C1214 System Relay Contact or Coil Circuit Open

EBCM

DTC C1217 Pump Motor Shorted to Ground

EBCM

DTC C1218 Pump Motor Circuit Shorted to Voltage or Motor Ground Open

EBCM

DTC C1221 LF Wheel Speed Sensor Input Signal is 0

EBCM

DTC C1222 RF Wheel Speed Sensor Input Signal is 0

EBCM

DTC C1223 LR Wheel Speed Sensor Input Signal is 0

EBCM

DTC C1224 RR Wheel Speed Sensor Input Signal is 0

EBCM

DTC C1225 LF Excessive Wheel Speed Variation

EBCM

DTC C1226 RF Excessive Wheel Speed Variation

EBCM

DTC C1227 LR Excessive Wheel Speed Variation

EBCM

DTC C1228 RR Excessive Wheel Speed Variation

EBCM

DTC C1232 LF Wheel Speed Circuit Open or Shorted

EBCM

DTC C1233 RF Wheel Speed Circuit Open or Shorted

EBCM

DTC C1234 LR Wheel Speed Circuit Open or Shorted

EBCM

DTC C1235 RR Wheel Speed Circuit Open or Shorted

EBCM

DTC C1236 Low System Supply Voltage

EBCM

DTC C1237 High System Supply Voltage

EBCM

DTC C1238 Brake Thermal Model Exceeded

EBCM

DTC C1241 Variable Effort Steering Circuit Malfunction in Variable Effort Steering

EBCM

DTC C1242 Pump Motor Circuit Open

EBCM

DTC C1243 BPMV Pump Motor Stalled

EBCM

DTC C1246 Brake Lining Wear Circuit Open

EBCM

DTC C1248 EBCM Turned the Red Brake Warning Indicator On

EBCM

DTC C1251 RSS Indicated Malfunction

EBCM

DTC C1252 LF Normal Force Malfunction

EBCM

DTC C1253 RF Normal Force Malfunction

EBCM

DTC C1254 Abnormal Shutdown Detected

EBCM

DTC C1255 EBCM Internal Malfunction

EBCM

DTC C1256 EBCM Internal Malfunction

EBCM

DTC C1261 LF Inlet Valve Solenoid Malfunction

EBCM

DTC C1262 LF Outlet Valve Solenoid Malfunction

EBCM

DTC C1263 RF Inlet Valve Solenoid Malfunction

EBCM

DTC C1264 RF Outlet Valve Solenoid Malfunction

EBCM

DTC C1265 LR Inlet Valve Solenoid Malfunction

EBCM

DTC C1266 LR Outlet Valve Solenoid Malfunction

EBCM

DTC C1267 RR Inlet Valve Solenoid Malfunction

EBCM

DTC C1268 RR Outlet Valve Solenoid Malfunction

EBCM

DTC C1271 LF TCS Master Cylinder Isolation Valve Malfunction

EBCM

DTC C1272 LF TCS Prime Valve Malfunction

EBCM

DTC C1273 RF TCS Master Cylinder Isolation Valve Malfunction

EBCM

DTC C1274 RF TCS Prime Valve Malfunction

EBCM

DTC C1276 Delivered Torque Signal Circuit Malfunction

EBCM

DTC C1277 Requested Torque Signal Circuit Malfunction

EBCM

DTC C1278 TCS Temporarily Inhibited By PCM

EBCM

DTC C1281 VSES Sensors Uncorrelated

EBCM

DTC C1282 Yaw Rate Sensor Bias Circuit Malfunction

EBCM

DTC C1283 Excessive Time to Center Steering

EBCM

DTC C1284 Lateral Accelerometer Sensor Bias Malfunction

EBCM

DTC C1285 Lateral Accelerometer Sensor Circuit Malfunction

EBCM

DTC C1286 Steering Sensor Bias Malfunction

EBCM

DTC C1287 Steering Sensor Rate Malfunction

EBCM

DTC C1288 Steering Sensor Circuit Malfunction

EBCM

DTC C1291 Open Brake Lamp Switch Contacts During Deceleration

EBCM

DTC C1293 Code C1291 Set in Previous Ignition Cycle

EBCM

DTC C1294 Brake Lamp Switch Circuit Always Active

EBCM

DTC C1295 Brake Lamp Switch Circuit Open

EBCM

DTC C1298 PCM Class 2 Serial Data Link Malfunction

EBCM

DTC P1571 Traction Control Torque Request Circuit in Engine Controls - 4.6L

PCM

DTC P1644 Traction Control Delivered Torque Output Circuit in Engine Controls - 4.6L

PCM

DTC U1000 Class 2 Data Link Malfunction

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

EBCM, PCM, RSS

DTC U1016 Loss of Communications with PCM

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

EBCM, IPC, IPM, RSS

DTC U1040 Loss of Communications with ABS

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

IPC, RSS

DTC U1056 Loss of Communications with RSS

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

EBCM

DTC U1064 Loss of Communications with DIM

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

IPC, IPM, RSS

DTC U1065 Loss of Communications with IPM

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

IPC, RSS

DTC U1066 Loss of Communications with RIM

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

IPC, IPM

DTC U1088 Loss of Communications with SDM

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

IPC

DTC U1144 Loss of Communications with PHN

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

IPC

DTC U1160 Loss of Communications with DDM

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

IPC

DTC U1255 Class 2 Data Link Malfunction

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

IPC, IPM

DTC U1300 Class 2 Data Link Low

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

EBCM, IPC, IPM

DTC U1301 Class 2 Data Link High

Go to Scan Tool Does Not Communicate with Class 2 Device in Data Link Communications

EBCM, IPC, IPM