GM Service Manual Online
For 1990-2009 cars only

DTC

Diagnostic Procedure

Module(s)

C1214

DTC C1214

EBCM

C1216

DTC C1216

EBCM

C1217

DTC C1217

EBCM

C1218

DTC C1218

EBCM

C1221-C1235

DTC C1221-C1235

EBCM

C1236

DTC C1236

EBCM

C1237

DTC C1237

EBCM

C1238

DTC C1238

EBCM

C1242 or C1243

DTC C1242 or C1243

EBCM

C1245

DTC C1245 in Tire Pressure Monitoring

EBCM

C1247

DTC C1247 in Hydraulic Brakes

EBCM

C1248

DTC C1248

EBCM

C1254

DTC C1254

EBCM

C1255 or C1256

DTC C1255 or C1256

EBCM

C1261-C1274

DTC C1261-C1274

EBCM

C1275

DTC C1275

EBCM

C1278

DTC C1278

EBCM

C1291 or C1293

DTC C1291 or C1293

EBCM

C1294

DTC C1294

EBCM

C1295

DTC C1295

EBCM

C1298

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

EBCM

P1571

DTC C1277 or P1571

PCM

P1644 or P1689

DTC C1276, P1644, or P1689

PCM