GM Service Manual Online
For 1990-2009 cars only

Diagnostic Trouble Code (DTC)

Type

P0100 Mass Air Flow (MAF) Sensor Circuit

A

P0101 Mass Air Flow (MAF) Sensor Performance

B

P0110 Intake Air Temperature (IAT) Sensor Circuit

A

P0115 Engine Coolant Temperature (ECT) Sensor Circuit

A

P0116 Engine Coolant Temperature (ECT) Sensor Performance

B

P0120 Throttle Position (TP) Sensor Circuit

A

P0121 Throttle Position (TP) Sensor Performance

B

P0125 Excessive Time to Closed Loop Fuel Control

A

P0128 Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature

A

P0130 Heated Oxygen Sensor (HO2S) Circuit Sensor 1

B

P0133 Heated Oxygen Sensor (HO2S) Slow Response Sensor 1

B

P0135 Heated Oxygen Sensor (HO2S) Heater Performance Sensor 1

B

P0136 Heated Oxygen Sensor (HO2S) Circuit Sensor 2

B

P0141 Heated Oxygen Sensor (HO2S) Heater Performance Sensor 2

B

P0171 Fuel Trim System Lean

B

P0172 Fuel Trim System Rich

B

P0300 Engine Misfire Detected

B

P0301-P0304 Cylinder Specific Misfire Detected

B

P0325 Knock Sensor (KS) Circuit

B

P0335 Crankshaft Position (CKP) Sensor Circuit

B

P0340 Camshaft Position (CMP) Sensor Circuit

A

P0420 Three Way Catalyst (TWC) System Low Efficiency

B

P0440 Evaporative Emission (EVAP) System

B

P0441 Evaporative Emission (EVAP) System No Flow During Purge

B

P0442 Evaporative Emission (EVAP) System Small Leak Detected

B

P0446 Evaporative Emission (EVAP) Vent System Performance

B

P0450 Fuel Tank Pressure (FTP) Sensor Circuit

B

P0451 Fuel Tank Pressure (FTP) Sensor Performance

B

P0500 Vehicle Speed Sensor (VSS) Circuit

B

P0505 Idle Control System

A

P1300 Ignition Coil Primary Feedback Circuit Cylinder 1

A

P1305 Ignition Coil Primary Feedback Circuit Cylinder 2

A

P1310 Ignition Coil Primary Feedback Circuit Cylinder 3

A

P1315 Ignition Coil Primary Feedback Circuit Cylinder 4

A

P1335 Crankshaft Position (CKP) Sensor Circuit

A

P1346 Intake Camshaft Position (CMP) System Performance

B

P1349 Intake Camshaft Position (CMP) System

B

P1520 Stoplamp Switch Circuit

B

P1600 Control Module Long Term Memory Reset

A

P1656 Intake Camshaft Position (CMP) Actuator Control Solenoid Circuit

A

P1690 Rocker Arm Actuator Solenoid Control Circuit

A

P1692 Rocker Arm Actuator System Stuck On

A

P1693 Rocker Arm Actuator System Stuck Off

A