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Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE INDEX

DTC (1) Description (2) Code Type
BXXXX (3) Body Control Systems Malfunction N/A
CXXXX (3) Chassis Control System Malfunction N/A
P0013  Camshaft Position Actuator Solenoid Circuit B
P0014  Cam Phaser Performance B
P0105  MAP System Performance B
P0107  MAP Sensor Circuit - Low Voltage A
P0108  MAP Sensor Circuit - High Voltage A
P0112  IAT Sensor Circuit - Low Voltage B
P0113  IAT Sensor Circuit - High Voltage B
P0116  ECT Sensor Performance B
P0117  ECT Sensor Circuit - Low Voltage B
P0118  ECT Sensor Circuit - High Voltage B
P0122  TP Sensor Circuit - Low Voltage A
P0123  TP Sensor Circuit - High Voltage A
P0125  Excess Time To Enter Closed Loop Fuel Control B
P0128  ECT Less Than Thermostat Regulating Temperature B
P0130  Closed Loop Rationality 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 Circuit - 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-P0206  Fuel Injector Control Circuit B
P0218 (4) Transmission Fluid Overtemperature C
P0300  Engine Misfire Detected B
P0301-P0306  Engine Misfire Detected In Cylinder No. 1-6 B
P0326  Knock Sensor Module Circuit B
P0327 & P0332  Knock Sensor Circuit - Low Voltage B
P0335  Crankshaft Position Sensor Circuit B
P0336  Crankshaft Position Sensor Circuit Performance B
P0340  Camshaft Position Sensor B
P0341  Camshaft Position Sensor Circuit Performance B
P0420  TWC System - Low Efficiency A
P0440  EVAP System - Large Leak A
P0442  EVAP System - Small Leak A
P0446  EVAP Vent Valve Performance A
P0452  Fuel Tank Pressure Sensor - Low Voltage B
P0453  Fuel Tank Pressure Sensor - High Voltage B
P0461 (5) Fuel Level Sensor Circuit Performance C
P0462 (5) Fuel Level Sensor Circuit - Low Voltage C
P0463 (5) Fuel Level Sensor Circuit - High Voltage C
P0495 (6) Fan Clutch Locked C
P0502  Vehicle Speed Sensor Low Output B
P0503  Vehicle Speed Sensor Erratic B
P0506  Idle Control System - Low RPM B
P0507  Idle Control System - RPM High A
P0530 (7) A/C Refrigerant Pressure Sensor Circuit C
P0562 (8) Low System Voltage C
P0563 (8) High System Voltage C
P0567 (9) Cruise Control Resume/Accel Switch Circuit C
P0568 (9) Cruise Control Set/Coast Switch Circuit C
P0571 (9) TCC Brake Switch Circuit N/A
P0601  PCM Memory A
P0602  PCM Not Programmed A
P0604  PCM Random Access Memory Performance A
P0606  PCM Memory A
P0607  PCM Memory A
P0621 (8) Generator "L" Terminal Circuit C
P0622 (8) Generator Field Circuit C
P0705  Transmission Range Switch C
P0711 (4) TFT Sensor Circuit - Range/Performance C
P0712 (4) TFT Sensor Circuit - Low Input C
P0713 (4) TFT Sensor Circuit - High Input C
P0719 (4) Brake Switch Circuit - Low Input C
P0724 (4) Brake Switch Circuit - High Input C
P0740 (4) TCC Enable Solenoid Circuit - Electrical Malfunction B
P0741 (4) TCC System - Stuck Off B
P0742 (4) TCC System - Stuck On B
P0748 (4) PC Solenoid Circuit - Electrical Malfunction C
P0751 (4) 1-2 Shift Solenoid Valve Performance B
P0752 (4) 1-2 Shift Solenoid Valve Performance - No 2nd Or 3rd Gear B
P0753 (4) 1-2 Shift Solenoid Circuit - Electrical Malfunction B
P0756 (4) 2-3 Shift Solenoid Valve Performance A
P0757 (4) 2-3 Shift Solenoid Valve Performance - No 3rd Or 4th Gear A
P0758 (4) 2-3 Shift Solenoid Circuit - Electrical Malfunction A
P0785 (4) 3-2 Shift Solenoid Circuit - Electrical Malfunction B
P1120  TP Sensor Circuit - Intermittent High Voltage A
P1133  HO2S Circuit - Insufficient Switching - Sensor 1 B
P1137  HO2S Circuit - Low Voltage - Sensor 2 B
P1138  HO2S Circuit - High Voltage - Sensor 2 B
P1171  Lean Exhaust Under Heavy Load C
P1220  Throttle Position Sensor 2 - Low Voltage A
P1221  Excessive Difference Between Throttle Position Sensors A
P1271  Excessive Difference Between Accelerator Pedal Position Sensors A
P1275  Accelerator Pedal Position Circuit - Sensor 1 A
P1280  Accelerator Pedal Position Circuit - Sensor 2 A
P1336  Crankshaft System Variation Not Learned A
P1345  Crankshaft/Camshaft Sensor Correlation B
P1380  EBCM DTC Detected Rough Road Data Unstable C
P1381  Misfire Detected - No EBCM/PCM Serial Data C
P1441  EVAP System Flow During Non-Purge A
P1481 (6) Cooling Fan Speed Sensor Circuit B
P1482 (6) Cooling Fan Clutch Control Circuit B
P1484 (6) Cooling Fan Speed Error A
P1504 (10) Vehicle Speed Signal - Low Voltage N/A
P1512  Command Vs. Actual Throttle Position Correlation Error A
P1514  Airflow Rate Excessive A
P1515  Predicted Vs. Actual Throttle Position Correlation Error A
P1516  Predicted Vs. Actual Throttle Position Correlation Error A
P1523  Throttle Rest Position C
P1571 (10) Invalid Torque Signal C
P1600  PCM Memory Performance A
P1621  PCM Memory Performance A
P1626 (11) Theft Deterrent System Loss Of Serial Communication C
P1627  PCM Memory Performance A
P1630 (11) PCM Unable To Learn Passlock(tm) Module Password C
P1631 (11) Theft Deterrent System Password Incorrect C
P1632 (11) Fuel Disable Or Undecided Password Sent From BCM C
P1633  Ignition 0 Voltage Low N/A
P1635  5-Volt Reference A Circuit A
P1637 (8) Generator Turn-On Signal Circuit Voltage Out Of Range C
P1638 (8) Pulse Width Modulated Signal Out Of Range C
P1639  5-Volt Reference B Circuit A
P1644 (10) Torque Signal Voltage N/A
P1680  PCM Memory A
P1681  PCM Memory A
P1682  Ignition 1 Voltage Low N/A
P1683  PCM Memory B
P1689 (10) Torque Signal Voltage N/A
P1810 (4) TFP Manual Valve Position Switch - Circuit Malfunction B
P1860 (4) TCC PWM Solenoid Circuit - Electrical Malfunction B
P1870 (4) Transmission Component Slipping B
UXXXX (3) Network Communication System Malfunction N/A
(1) DTC definitions may vary depending on vehicle and/or engine configuration.
(2) See CODE TYPES  under ON-BOARD DIAGNOSTICS.
(3) See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
(4) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(5) See appropriate ANALOG INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.
(6) See appropriate ELECTRIC COOLING FANS article in ENGINE COOLING.
(7) See appropriate MANUAL or AUTOMATIC A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(8) See appropriate GENERATORS & REGULATORS article in STARTING & CHARGING SYSTEMS.
(9) See appropriate CRUISE CONTROL SYSTEMS article in ACCESSORIES & EQUIPMENT.
(10) See appropriate ANTI-LOCK article in BRAKES.
(11) See appropriate ANTI-THEFT SYSTEMS article in ACCESSORIES & EQUIPMENT.
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