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Diagnostic Trouble Code Definitions

NOTE: Use of Tech 1 or Tech 2 scan tool is required to retrieve DTCs. Refer to user reference manual supplied with scan tool.
DIAGNOSTIC TROUBLE CODE INDEX

DTC (1) Definition (2) Code Type
BXXXX Body Control System Malfunction (3)
CXXXX Chassis Control System Malfunction (3)
P0030  HO2S 1 Heater Circuit B
P0101  MAF System Performance B
P0102  MAF Sensor Circuit - Low Frequency B
P0103  MAF Sensor Circuit - High Frequency B
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 B
P0122  TP Sensor Circuit - Low Voltage B
P0123  TP Sensor Circuit - High Voltage B
P0125  ECT Excessive Time To Enter Closed Loop Fuel Control B
P0128  ECT Below Thermostat Regulating Temperature B
P0130  HO2S 1 - Insufficient Activity For Closed Loop Operation 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 Circuit Insufficient Activity - Sensor 1 B
P0135  HO2S Heater Performance - Sensor 1 B
P0137  HO2S Circuit Low Voltage - Sensor 2 B
P0138  HO2S Circuit High Voltage - Sensor 2 B
P0140  HO2S Circuit 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 No. 1 Control Circuit B
P0202  Injector No. 2 Control Circuit B
P0203  Injector No. 3 Control Circuit B
P0204  Injector No. 4 Control Circuit B
P0205  Injector No. 5 Control Circuit B
P0206  Injector No. 6 Control Circuit B
P0218 (4) High Transmission Fluid Temperature C
P0230  Fuel Pump Control Circuit C
P0300  Engine Misfire Detected B
P0325  Knock Sensor Module Circuit B
P0327  Knock Sensor Circuit - Low Voltage B
P0336  24X Reference Signal Circuit B
P0341  Camshaft Position Sensor Circuit B
P0401  EGR System - Insufficient Flow A
P0403  EGR Solenoid Control Circuit B
P0404  EGR System Open Position Performance B
P0405  EGR Position Sensor Circuit - Low Voltage B
P0420  Catalyst System Low Efficiency A
P0440  EVAP System B
P0442  EVAP Control System - Small Leak Detected A
P0443  EVAP Purge Solenoid Valve Control Circuit B
P0446  EVAP Canister Vent Blocked B
P0449  EVAP Vent Solenoid Valve Control Circuit B
P0452  Fuel Tank Pressure Sensor Circuit - Low Voltage B
P0453  Fuel Tank Pressure Sensor Circuit - High Voltage B
P0462 (5) Fuel Level Sensor Circuit - Low Voltage C
P0463 (5) Fuel Level Sensor Circuit - High Voltage C
P0480  Cooling Fan Relay No. 1 Control Circuit B
P0481  Cooling Fan Relay No. 2 Control Circuit B
P0502  Vehicle Speed Sensor Circuit (Low Input) B
P0503  Vehicle Speed Sensor Circuit Performance B
P0506  Idle Speed - Low B
P0507  Idle Speed - High B
P0530  A/C Refrigerant Pressure Sensor Circuit C
P0560  System Voltage C
P0601  PCM Internal Program Fault A
P0602  PCM Not Programmed A
P0620 (6) Generator Performance C
P0650  Malfunction Indicator Light Control Circuit B
P0711 (4) Transmission Fluid Temperature Sensor Circuit Malfunction C
P0712 (4) Transmission Fluid Temperature Sensor Circuit Malfunction (Low Circuit) C
P0713 (4) Transmission Fluid Temperature Sensor Circuit Malfunction (High Circuit) C
P0716 (4) Input Speed Sensor Malfunction B
P0717 (4) Input Speed Sensor Circuit (No Signal) B
P0719 (4) Brake Switch Circuit Low Input (Stuck On) C
P0724 (4) Brake Switch Circuit High Input (Stuck Off) C
P0730 (4) Incorrect Gear Ratio C
P0741 (4) TCC Circuit Inoperative (Stuck Off) B
P0742 (4) TCC Circuit Inoperative (Stuck On) A
P0748 (4) Pressure Control Solenoid Electrical Malfunction C
P0751 (4) 1-2 Shift Solenoid Performance B
P0752 (4) 1-2 Shift Solenoid Performance B
P0753 (4) 1-2 Shift Solenoid Electrical A
P0756 (4) 2-3 Shift Solenoid Performance A
P0757 (4) 2-3 Shift Solenoid Performance A
P0758 (4) 2-3 Shift Solenoid Electrical A
P1106  MAP Sensor Circuit Intermittent High Voltage C
P1107  MAP Sensor Circuit Intermittent Low Voltage C
P1111  IAT Sensor Circuit Intermittent High Voltage C
P1112  IAT Sensor Circuit Intermittent Low Voltage C
P1114  ECT Sensor Circuit Intermittent Low Voltage C
P1115  ECT Sensor Circuit Intermittent High Voltage C
P1121  TP Sensor Circuit Intermittent High Voltage C
P1122  TP Sensor Circuit Intermittent Low Voltage C
P1133  HO2S Insufficient Switching - Sensor B
P1134  HO2S Transition Time Ratio - Sensor 1 B
P1189 (5) Engine Oil Pressure Switch Circuit (Alero, Gand Am & Malibu) C
P1336  CKP System Variation Not Learned A
P1351  Ignition Control Circuit High Voltage B
P1352  Ignition By-Pass Circuit High Voltage B
P1361  Ignition Control Circuit Low Voltage B
P1362  Ignition By-Pass Circuit Low Voltage B
P1374  Crankshaft Position High-To-Low Resolution Frequency Correlation B
P1380  Misfire Detected - Rough Road Data Not Available C
P1381  Misfire Detected - No Communication With Brake Control Module C
P1404  EGR Closed Position Performance A
P1441  EVAP System Flow During Non-Purge B
P1546  A/C Relay Clutch Relay Control Circuit C
P1554 (7) Cruise Control Feedback Circuit C
P1585 (7) Cruise Inhibit Output Circuit C
P1626 (8) Theft Deterrent System Fuel Enable Signal Lost C
P1630 (8) Theft Deterrent Learn Mode Active C
P1631 (8) Theft Deterrent Start Enable Signal Incorrect C
P1635  5-Volt Reference 1 Circuit B
P1639  5-Volt Reference 2 Circuit B
P1640  Output Driver Module 1 C
P1650  Output Driver Module 2 C
P1660  Output Driver Module 3 C
P1670  Output Driver Module 4 C
P1673  Engine Coolant Temperature Light Control Circuit (Grand Prix) C
P1810 (4) Pressure Switch Assembly Malfunction B
P1811 (4) Maximum Adapt And Long Shift C
P1860 (4) TCC PWM Solenoid Circuit Electrical Malfunction A
P1887 (4) TCC Release Switch Circuit Malfunction B
UXXXX Communications Malfunction (3)
(1) DTC definitions may vary depending on vehicle and/or engine configuration.
(2) See CODE TYPES  under ON-BOARD DIAGNOSTICS under SELF-DIAGNOSTIC SYSTEM.
(3) See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
(4) See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.
(5) See appropriate ANALOG INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.
(6) See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
(7) See appropriate CRUISE CONTROL SYSTEMS article in ACCESSORIES & EQUIPMENT.
(8) See appropriate ANTI-THEFT SYSTEMS article in ACCESSORIES & EQUIPMENT.
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