GM Service Manual Online
For 1990-2009 cars only

Notice: Turn the ignition OFF when installing or removing the ECM connectors and disconnecting or reconnecting the power to the ECM (battery cable, ECM pigtail, ECM fuse, jumper cables, etc.) in order to prevent internal ECM damage.

DTCs should be cleared after repairs have been completed. Some diagnostic tables will tell you to clear the codes before using the chart. This allows the engine control module (ECM) to set the DTC while going through the chart, which will help to find the cause of the problem more quickly.

DTC Code

Diagnostic Procedure

Module

P0106

DTC P0106

ECM

P0107

DTC P0107

ECM

P0108

DTC P0108

ECM

P0110

DTC P0110

ECM

P0111

DTC P0111

ECM

P0112

DTC P0112

ECM

P0113

DTC P0113

ECM

P0115

DTC P0115

ECM

P0117

DTC P0117

ECM

P0118

DTC P0118

ECM

P0122

DTC P0122

ECM

P0123

DTC P0123

ECM

P0125

DTC P0125

ECM

P0128

DTC P0128

ECM

P0131

DTC P0131

ECM

P0132

DTC P0132

ECM

P0133

DTC P0133

ECM

P0134

DTC P0134

ECM

P0135

DTC P0135

ECM

P0137

DTC P0137

ECM

P0138

DTC P0138

ECM

P0140

DTC P0140

ECM

P0141

DTC P0141

ECM

P0171

DTC P0171

ECM

P0172

DTC P0172

ECM

P0201

DTC P0201, P0202, P0203, or P0204

ECM

P0202

DTC P0201, P0202, P0203, or P0204

ECM

P0203

DTC P0201, P0202, P0203, or P0204

ECM

P0204

DTC P0201, P0202, P0203, or P0204

ECM

P0217

DTC P0217

ECM

P0300

DTC P0300

ECM

P0315

DTC P0315

ECM

P0317

DTC P0317

ECM

P0324

DTC P0324

ECM

P0327

DTC P0327

ECM

P0336

DTC P0336

ECM

P0337

DTC P0337

ECM

P0341

DTC P0341

ECM

P0342

DTC P0342

ECM

P0351

DTC P0351 or P0352

ECM

P0352

DTC P0351 or P0352

ECM

P0401

DTC P0401

ECM

P0402

DTC P0402

ECM

P0404

DTC P0404

ECM

P0405

DTC P0405

ECM

P0406

DTC P0406

ECM

P0420

DTC P0420

ECM

P0441

DTC P0441

ECM

P0442

DTC P0442

ECM

P0443

DTC P0443

ECM

P0446

DTC P0446

ECM

P0449

DTC P0449

ECM

P0452

DTC P0452

ECM

P0453

DTC P0453

ECM

P0455

DTC P0455

ECM

P0456

DTC P0456

ECM

P0461

DTC P0461 in Instrument Panel, Gages, and Console

ECM

P0462

DTC P0462 in Instrument Panel, Gages, and Console

ECM

P0463

DTC P0463 in Instrument Panel, Gages, and Console

ECM

P0464

DTC P0464 in Instrument Panel, Gages, and Console

ECM

P0488

DTC P0488

ECM

P0496

DTC P0496

ECM

P0502

DTC P0502

ECM

P0506

DTC P0506 or P0507

ECM

P0507

DTC P0506 or P0507

ECM

P0532

DTC P0532 or P0533 in HVAC Systems - Manual

ECM

P0533

DTC P0532 or P0533 in HVAC Systems - Manual

ECM

P0562

DTC P0562 in Engine Electrical

ECM

P0563

DTC P0563 in Engine Electrical

ECM

P0601

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610

ECM

P0602

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610

ECM

P0606

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610

ECM

P0645

DTC P0645 in HVAC Systems - Manual

ECM

P0700

DTC P0700

ECM

P1106

DTC P1106

ECM

P1107

DTC P1107

ECM

P1111

DTC P1111

ECM

P1112

DTC P1112

ECM

P1114

DTC P1114

ECM

P1115

DTC P1115

ECM

P1121

DTC P1121

ECM

P1122

DTC P1122

ECM

P1391

DTC P1391

ECM

P1392

DTC P1392

ECM

P1393

DTC P1393

ECM

P1396

DTC P1396

ECM

P1397

DTC P1397

ECM

P2195

DTC P2195

ECM

P2196

DTC P2196

ECM

P2279

DTC P2279

ECM

P2422

DTC P2422

ECM

P2610

DTC P0601, P0602, P0603, P0604, P0605, P0606, P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610

ECM

UXXXX

Scan Tool Does Not Communicate with Component in Data Link Communications

ECM