GM Service Manual Online
For 1990-2009 cars only

PCM Diagnostic Trouble Codes

DTC

Description

Domestic

RPO LG8

P0101

DTC P0101 Mass Air Flow (MAF) Sensor Performance

B

P0102

DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency

B

P0103

DTC P0103 Mass Air Flow (MAF) Sensor Circuit High Frequency

B

P0107

DTC P0107 Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage

B

P0108

DTC P0108 Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

B

P0112

DTC P0112 Intake Air Temperature (IAT) Sensor Circuit Low Voltage

B

P0113

DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage

B

P0117

DTC P0117 Engine Coolant Temperature (ECT) Sensor Circuit Low Voltage

B

P0118

DTC P0118 Engine Coolant Temperature (ECT) Sensor Circuit High Voltage

B

P0121

DTC P0121 Throttle Position (TP) Sensor Performance

B

P0122

DTC P0122 Throttle Position (TP) Sensor Circuit Low Voltage

B

P0123

DTC P0123 Throttle Position (TP) Sensor Circuit High Voltage

B

P0125

DTC P0125 Engine Coolant Temperature (ECT) Insufficient for Closed Loop Fuel Control

B

P0131

DTC P0131 HO2S Circuit Low Voltage Sensor 1

B

P0132

DTC P0132 HO2S Circuit High Voltage Sensor 1

B

P0133

DTC P0133 HO2S Slow Response Sensor 1

B

P0134

DTC P0134 HO2S Circuit Insufficient Activity Sensor 1

B

P0135

DTC P0135 HO2S Heater Performance Sensor 1

B

P0137

DTC P0137 HO2S Circuit Low Voltage Sensor 2

B

P0138

DTC P0138 HO2S Circuit High Voltage Sensor 2

B

P0140

DTC P0140 HO2S Circuit Insufficient Activity Sensor 2

B

P0141

DTC P0141 HO2S Heater Performance Sensor 2

B

P0171

DTC P0171 Fuel Trim System Lean

B

P0172

DTC P0172 Fuel Trim System Rich

B

P0201

DTC P0201 Injector 1 Control Circuit

B

P0202

DTC P0202 Injector 2 Control Circuit

B

P0203

DTC P0203 Injector 3 Control Circuit

B

P0204

DTC P0204 Injector 4 Control Circuit

B

P0205

DTC P0205 Injector 5 Control Circuit

B

P0206

DTC P0206 Injector 6 Control Circuit

B

P0218

DTC P0218 Transmission Fluid Overtemperature in Automatic Transaxle - 4T65-E

C

P0230

DTC P0230 Fuel Pump Relay Control Circuit

C

P0300

DTC P0300 Engine Misfire Detected

B

P0325

DTC P0325 Knock Sensor Module Performance

B

P0327

DTC P0327 Knock Sensor (KS) Circuit

B

P0336

DTC P0336 Crankshaft Position (CKP) Sensor Circuit

B

P0341

DTC P0341 Camshaft Position (CMP) Sensor Performance

B

P0401

DTC P0401 Exhaust Gas Recirculation (EGR) Flow Insufficient

A

P0403

DTC P0403 Exhaust Gas Recirculation (EGR) Solenoid Control Circuit

B

P0404

DTC P0404 Exhaust Gas Recirculation (EGR) Open Position Performance

B

P0405

DTC P0405 Exhaust Gas Recirculation (EGR) Position Sensor Circuit Low Voltage

B

P0410

DTC P0410 Secondary Air Injection (AIR) System

B

P0412

DTC P0412 Secondary Air Injection (AIR) Solenoid Relay Control Circuit

B

P0418

DTC P0418 Secondary Air Injection (AIR) Pump Relay Control Circuit

B

P0420

DTC P0420 Catalyst System Low Efficiency

A

P0440

DTC P0440 Evaporative Emission (EVAP) System

B

P0442

DTC P0442 Evaporative Emission (EVAP) System Small Leak Detected

A

P0443

DTC P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit

B

P0446

DTC P0446 Evaporative Emission (EVAP) Vent System Performance

B

P0443

DTC P0443 Evaporative Emission (EVAP) Purge Solenoid Control Circuit

B

P0452

DTC P0452 Fuel Tank Pressure Sensor Circuit Low Voltage

B

P0453

DTC P0453 Fuel Tank Pressure Sensor Circuit High Voltage

B

P0462

DTC P0462 Fuel Level Sensor Circuit Low Voltage

C

P0463

DTC P0463 Fuel Level Sensor Circuit High Voltage

C

P0480

DTC P0480 Cooling Fan Relay 1 Control Circuit

B

P0481

DTC P0481Cooling Fan Relay 2 Control Circuit

B

P0502

DTC P0502 Vehicle Speed Sensor (VSS) Circuit Low Input in Automatic Transaxle - 4T65-E

B

P0503

DTC P0503 Vehicle Speed Sensor (VSS) Circuit Intermittent in Automatic Transaxle - 4T65-E

B

P0506

DTC P0506 Idle Speed Low

B

P0507

DTC P0507 Idle Speed High

B

P0530

DTC P0530 Air Conditioning (A/C) Refrigerant Pressure Sensor Circuit

C

P0560

DTC P0560 System Voltage

C

P0601

DTC P0601 Control Module Read Only Memory (ROM)

A

P0602

DTC P0602 Control Module Not Programmed

A

P0620

DTC P0620 Generator Performance

C

P0650

DTC P0650 Malfunction Indicator Lamp (MIL) Control Circuit

B

P0656

DTC P0656 Fuel Level Output Circuit

C

P0711

DTC P0711 TFT Sensor Circuit Range/Performance in Automatic Transaxle - 4T65-E

C

P0712

DTC P0712 Transmission Fluid Temperature (TFT) Sensor Circuit Low Input in Automatic Transaxle - 4T65-E

C

P0713

DTC P0713 Transmission Fluid Temperature (TFT) Sensor Circuit High Input in Automatic Transaxle - 4T65-E

C

P0716

DTC P0716 Input Speed Sensor Circuit Intermittent in Automatic Transaxle - 4T65-E

B

P0717

DTC P0717 Input Speed Sensor Circuit Low Input in Automatic Transaxle - 4T65-E

B

P0719

DTC P0719 Brake Switch Circuit Low Input in Automatic Transaxle - 4T65-E

C

P0724

DTC P0724 Brake Switch Circuit High Input in Automatic Transaxle - 4T65-E

C

P0730

DTC P0730 Incorrect Gear Ratio in Automatic Transaxle - 4T65-E

C

P0741

DTC P0741 TCC System Stuck Off in Automatic Transaxle - 4T65-E

B

P0742

DTC P0742 TCC System Stuck On in Automatic Transaxle - 4T65-E

A

P0748

DTC P0748 Pressure Control Solenoid Circuit Electrical in Automatic Transaxle

C

P0751

DTC P0751 1-2 Shift Solenoid Valve Performance - No First or Fourth Gear in Automatic Transaxle - 4T65-E

B

P0752

DTC P0752 1-2 Shift Solenoid Valve Performance - No Second or Third Gear in Automatic Transaxle - 4T65-E

B

P0753

DTC P0753 1-2 Shift Solenoid Circuit Electrical in Automatic Transaxle - 4T65-E

B

P0756

DTC P0756 2-3 Shift Solenoid Valve Performance - No First or Second Gear in Automatic Transaxle - 4T65-E

A

P0757

DTC P0757 2-3 Shift Solenoid Valve Performance - No Third or Fourth Gear in Automatic Transaxle - 4T65-E

A

P0758

DTC P0758 2-3 Shift Solenoid Circuit Electrical in Automatic Transaxle - 4T65-E

A

P1106

DTC P1106 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage

C

P1107

DTC P1107 Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage

C

P1111

DTC P1111 Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage

C

P1112

DTC P1112 Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage

C

P1114

DTC P1114 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage

C

P1115

DTC P1115 Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage

C

P1121

DTC P1121 Throttle Position (TP) Sensor Circuit Intermittent High Voltage

C

P1122

DTC P1122 Throttle Position (TP) Sensor Circuit Intermittent Low Voltage

C

P1133

DTC P1133 HO2S Insufficient Switching Sensor 1

B

P1134

DTC P1134 HO2S Transition Time Ratio Sensor 1

B

P1336

DTC P1336 Crankshaft Position (CKP) System Variation Not Learned

A

P1351

DTC P1351 Ignition Coil Control Circuit High Voltage

B

P1352

DTC P1352 Ignition Bypass Circuit High Voltage

B

P1361

DTC P1361 Ignition Control (IC) Circuit Low Voltage

B

P1362

DTC P1362 Ignition Bypass Circuit Low Voltage

B

P1374

DTC P1374 Crankshaft Position (CKP) High to Low Resolution Frequency Correlation

B

P1380

DTC P1380 Misfire Detected - Rough Road Data Not Available

C

P1381

DTC P1381 Misfire Detected - No Communication with Brake Control Module

C

P1404

DTC P1404 Exhaust Gas Recirculation (EGR) Closed Position Performance

A

P1441

DTC P1441 Evaporative Emission (EVAP) System Flow During Non-Purge

B

P1546

DTC P1546 Air Conditioning (A/C) Clutch Relay Control Circuit

C

P1554

DTC P1554 Cruise Control Feedback Circuit

C

P1573

DTC P1573 Lost Communications with Brake/Traction Control (EBTCM) System

C

P1585

DTC P1585 Cruise Control Inhibit Output Circuit

C

P1626

DTC P1626 Theft Deterrent Fuel Enable Signal Lost

C

P1629

DTC P1629 Theft Deterrent Fuel Enable Signal Not Received

C

P1635

DTC P1635 5 Volt Reference Circuit

B

P1637

DTC P1637 Charging System Lamp Control Circuit

C

P1639

DTC P1639 5 Volt Reference 2 Circuit

B

P1653

DTC P1653 Low Engine Oil Level Lamp Control Circuit

C

P1663

DTC P1663 Change Engine Oil Lamp Control Circuit

C

P1810

DTC P1810 TFP Valve Position Switch Circuit in Automatic Transaxle - 4T65-E

B

P1811

DTC P1811 Maximum Adapt and Long Shift in Automatic Transaxle - 4T65-E

C

P1814

DTC P1814 Torque Converter Overstressed in Automatic Transaxle - 4T65-E

C

P1860

DTC P1860 TCC PWM Solenoid Circuit Electrical in Automatic Transaxle - 4T65-E

B

P1887

DTC P1887 TCC Release Switch Circuit in Automatic Transaxle - 4T65-E

B