GM Service Manual Online
For 1990-2009 cars only

DTC List

DTC

Description

Domestic RPO L36

P0101

Mass Air Flow System Performance

A

P0102

MAF Sensor Circuit Low Frequency

A

P0103

MAF Sensor Circuit High Frequency

A

P0107

MAP Sensor Circuit Low Voltage

B

P0108

MAP Sensor Circuit High Voltage

B

P0112

IAT Sensor Circuit Low Voltage

B

P0113

IAT Sensor Circuit High Voltage

B

P0117

ECT Sensor Circuit Low Voltage

B

P0118

ECT Sensor Circuit High Voltage

B

P0121

TP Sensor Performance

A

P0122

TP Sensor Circuit Low Voltage

A

P0123

TP Sensor Circuit High Voltage

A

P0125

ECT Excessive Time to Closed Loop

B

P0131

HO2S Circuit Low Voltage Sensor 1

B

P0132

HO2S Circuit High Voltage Sensor 1

B

P0133

HO2S Circuit Slow Response Sensor 1

B

P0134

HO2S CKT Insufficient Activity Sensor 1

B

P0135

HO2S Heater Circuit Sensor

B

P0137

HO2S Circuit Low Voltage Sensor 2

B

P0138

HO2S Circuit High Voltage Sensor 2

B

P0140

HO2S CKT Insufficient Activity Sensor 2

B

P0141

HO2S Heater Circuit Sensor 2

B

P0171

Fuel Trim System Lean

B

P0172

Fuel Trim System Rich

B

P0201

Injector 1 Control Circuit

B

P0202

Injector 2 Control Circuit

B

P0203

Injector 3 Control Circuit

B

P0204

Injector 4 Control Circuit

B

P0205

Injector 5 Control Circuit

B

P0206

Injector 6 Control Circuit

B

P0230

Fuel Pump Control Circuit

D

P0300

Engine Misfire Detected

B

P0325

Knock Sensor Module Circuit

D

P0327

Knock Sensor Circuit Low Voltage

D

P0332

Knock Sensor Circuit Bank 2

D

P0336

18X Reference Signal Circuit

B

P0341

CMP Sensor Circuit Performance

B

P0401

EGR System Flow Insufficient

A

P0403

EGR Solenoid Control Circuit

B

P0404

EGR System Performance

B

P0405

EGR Sensor Circuit Low Voltage

B

P0420

TWC System Low Efficiency

A

P0440

EVAP System

A

P0442

EVAP Control System Small Leak Detected

A

P0446

EVAP Canister Vent Blocked

A

P0452

Fuel Tank Pressure Sensor Circuit Low Voltage

B

P0453

Fuel Tank Pressure Sensor Circuit High Voltage

B

P0502

Vehicle Speed Sensor Circuit - Low Input. Refer to 4T65-E Automatic Transaxle Diagnosis

B

P0503

Vehicle Speed Sensor Circuit - Intermittent High. Refer to 4T65-E Automatic Transaxle Diagnosis

B

P0506

Idle Control System Low RPM

B

P0507

Idle Control System High RPM

B

P0530

A/C Refrigerant Pressure Sensor Circuit

D

P0560

System Voltage

D

P0601

PCM Memory

B

P0602

PCM Not Programmed

B

P0711

Transaxle Fluid Temperature (TFT) Sensor Circuit Performance. Refer to 4T65-E Automatic Transaxle Diagnosis

D

P0712

Transaxle Fluid Temperature (TFT) Sensor Circuit - Low Signal. Refer to 4T65-E Automatic Transaxle Diagnosis

D

P0713

Transaxle Fluid Temperature (TFT) Sensor Circuit - High Signal Voltage. Refer to 4T65-E Automatic Transaxle Diagnosis

D

P0716

Automatic Transmission Input (Shaft) Speed Sensor Circuit Performance. Refer to 4T65-E Automatic Transaxle Diagnosis

B

P0717

Automatic Transmission Input (Shaft) Speed Sensor No Input. Refer to 4T65-E Automatic Transaxle Diagnosis

B

P0719

Brake Switch Circuit Low. Refer to 4T65-E Automatic Transaxle Diagnosis

D

P0724

Brake Switch Circuit High. Refer to 4T65-E Automatic Transaxle Diagnosis

D

P0730

Incorrect Gear Ratio. Refer to 4T65-E Automatic Transaxle Diagnosis

D

P0741

Torque Converter Clutch System Stuck Off. Refer to 4T65-E Automatic Transaxle Diagnosis

B

P0742

Torque Converter Clutch System Stuck On. Refer to 4T65-E Automatic Transaxle Diagnosis

A

P0748

Pressure Control Solenoid Valve Circuit Malfunction. Refer to 4T65-E Automatic Transaxle Diagnosis

D

P0751

Shift Solenoid 1 - Performance/Stuck Off. Refer to 4T65-E Automatic Transaxle Diagnosis

B

P0753

Shift Solenoid 1 - Electrical. Refer to 4T65-E Automatic Transaxle Diagnosis

A

P0756

Shift Solenoid 2 - Performance/Stuck Off. Refer to 4T65-E Automatic Transaxle Diagnosis

A

P0758

Shift Solenoid 2 - Electrical. Refer to 4T65-E Automatic Transaxle Diagnosis

A

P1106

MAP Sensor CKT Intermittent High Voltage

D

P1107

MAP Sensor CKT Intermittent Low Voltage

D

P1111

IAT Sensor CKT Intermittent High Voltage

D

P1112

IAT Sensor CKT Intermittent Low Voltage

D

P1114

ECT Sensor CKT Intermittent Low Voltage

D

P1115

ECT Sensor CKT Intermittent High Voltage

D

P1121

TP Sensor CKT Intermittent High Voltage

D

P1122

TP Sensor CKT Intermittent Low Voltage

D

P1133

HO2S Insufficient Switching Sensor 1

B

P1134

HO2S Transition Time Ratio Sensor 1

B

P1336

CKP System Variation Not Learned

A

P1351

IC Circuit High Voltage

B

1352

Bypass Line High Voltage

B

P1361

IC Circuit Low Voltage

B

P1362

Bypass Line Low Voltage

B

P1374

3X Reference Circuit

B

P1380

EBCM DTC Rough Data Unusable

D

P1381

Misfire Detected No EBCM/PCM Serial Data

D

P1404

EGRValve Stuck Open

B

P1441

EVAP System Flow During Non-Purge

B

P1554

Cruise Control Status Circuit

D

P1602

EBCM/EBCTM Serial Data Circuit

D

P1605

HVAC Serial Data Circuit

D

P1610

Standard Body Module Serial Data CKT

D

P1626

Theft Deterrent System Fuel Enable CKT

D

P1630

Theft Deterrent PCM in Learn Mode

D

P1631

Theft Deterrent Password Incorrect

D

P1635

5 Volt Reference (A) Circuit

B

P1639

5 Volt Reference (B) Circuit

B

P1641

A/C Relay Control Circuit

D

P1651

Fan 1 Relay Control Circuit

B

P1652

Fan 2 Relay Control Circuit

B

P1662

Cruise Control Inhibit Control Circuit

D

P1665

EVAP Vent Solenoid Control Circuit

B

P1671

Mil Control Circuit

D

P1676

EVAP Canister Purge Solenoid Control CKT

B

P1810

Automatic Transmission Fluid Pressure Manual Valve Position Switch Malfunction. Refer to 4T65-E Automatic Transaxle Diagnosis

B

P1811

Maximum Adapt and Long Shift. Refer to

D

P1860

Torque Converter Clutch PWM Solenoid Circuit. Refer to 4T65-E Automatic Transaxle Diagnosis

A

P1887

TCC Release Switch Malfunction. Refer to 4T65-E Automatic Transaxle Diagnosis

B