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Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. 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
P0030  HO2S Heater Control Circuit Sensor 1 B
P0036  HO2S Heater Control Circuit Sensor 2 B
P0101  MAF Sensor Performance B
P0102  MAF Sensor Circuit - Low Frequency B
P0103  MAF Sensor Circuit - High Frequency B
P0106  MAP System Performance 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
P0116  ECT Sensor Performance 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  Excess Time To Enter Closed Loop Fuel Control B
P0128  ECT Less Than Thermostat Regulating Temperature B
P0130  HO2S Bank 1, Sensor 1 Circuit B
P0131  HO2S Bank 1, Sensor 1 Circuit - Low Voltage B
P0132  HO2S Bank 1, Sensor 1 Circuit - High Voltage B
P0133  HO2S Bank 1, Sensor 1 Circuit - Slow Response B
P0134  HO2S Bank 1, Sensor 1 Circuit - Insufficient Activity B
P0135  HO2S Bank 1, Sensor 1 Heater Circuit B
P0137  HO2S Bank 1, Sensor 2 Circuit - Low Voltage B
P0138  HO2S Bank 1, Sensor 2 Circuit - High Voltage B
P0140  HO2S Bank 1, Sensor 2 - Insufficient Activity B
P0141  HO2S Bank 1, Sensor 2 Heater Circuit B
P0150  HO2S Bank 2, Sensor 1 Circuit B
P0151  HO2S Bank 2, Sensor 1 Circuit - Low Voltage B
P0152  HO2S Bank 2, Sensor 1 Circuit - High Voltage B
P0153  HO2S Bank 2, Sensor 1 Circuit - Slow Response B
P0154  HO2S Bank 2, Sensor 1 Circuit - Insufficient Activity B
P0155  HO2S Bank 2, Sensor 1 Heater Circuit B
P0171  Fuel Trim System Lean Bank 1 B
P0172  Fuel Trim System Rich Bank 1 B
P0174  Fuel Trim System Lean Bank 2 B
P0175  Fuel Trim System Rich Bank 2 B
P0201-P0208  Fuel Injector Control Circuits B
P0218 (4) Transmission Fluid Overtemperature C
P0230  Fuel Pump Control Relay Circuit C
P0300  Engine Misfire Detected B
P0325  Knock Sensor Module Circuit B
P0326  Knock Sensor Circuit Excessive Spark Retard B
P0327  Knock Sensor Circuit - Low Voltage - Sensor 1 B
P0335  Crankshaft Position Sensor A Circuit Performance B
P0336  Crankshaft Position Sensor A Circuit Performance B
P0340  Camshaft Position Sensor Circuit B
P0341  Camshaft Position Sensor Circuit Performance B
P0351-P0358  Ignition Coil Primary Secondary Circuit B
P0385  Crankshaft Position Sensor B Circuit B
P0386  Crankshaft Position Sensor B Circuit Performance B
P0401  EGR System - Insufficient Flow A
P0403  EGR Valve Control Circuit B
P0404  EGR Valve Open Pintle Position B
P0405  EGR Pintle Position Circuit - Low Voltage B
P0410  Secondary Air Injection System B
P0412  Secondary Air Injection Relay Control Circuit B
P0418  Secondary Air Injection Pump Relay Control Circuit B
P0420  TWC System - Low Efficiency A
P0440  EVAP System - Large Leak B
P0442  EVAP System - Small Leak A
P0443  EVAP Purge Solenoid Control Circuit B
P0446  EVAP Vent Valve Performance B
P0449  EVAP Vent Valve Performance B
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
P0480 (6) Coolant Fan 1 Control Circuit B
P0481 (6) Coolant Fan 2 Control Circuit B
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 B
P0512 (7) Starter Request Circuit Performance C
P0532 (8) A/C Refrigerant Pressure Sensor Circuit - Low Voltage N/A
P0533 (8) A/C Refrigerant Pressure Sensor Circuit - High Voltage N/A
P0560 (9) System Voltage Out Of Range C
P0562 (9) System Voltage Low C
P0563 (9) System Voltage High C
P0574 (10) Cruise Control System - Vehicle Speed Too High C
P0601  PCM Memory A
P0602  PCM Not Programmed A
P0603  PCM Keep Alive Memory Error C
P0604  PCM Random Access Memory Performance A
P0606  PCM Memory A
P0607  PCM Memory A
P0615 (7) Starter Relay Control Circuit C
P0621 (9) Generator "L" Terminal Circuit C
P0622 (9) Generator Field "F" Control Circuit C
P0650  MIL Control Circuit B
P0711 (4) TFT Sensor Circuit - Range/Performance C
P0712 (4) TFT Sensor Circuit - Low Input C
P0713 (4) TFT Sensor Circuit - High Input C
P0716 (4) ISS Sensor Circuit - Intermittent B
P0717 (4) ISS Sensor Circuit - Low Input B
P0719  Brake Switch Circuit - Low Input C
P0724  Brake Switch Circuit - High Input C
P0731 (4) Incorrect 1st Gear Ratio C
P0732 (4) Incorrect 2nd Gear Ratio C
P0733 (4) Incorrect 3rd Gear Ratio C
P0734 (4) Incorrect 4th Gear Ratio C
P0741 (4) TCC System - Stuck Off B
P0742 (4) TCC System - Stuck On A
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
P0756 (4) 2-3 Shift Solenoid Valve Performance A
P0757 (4) 2-3 Shift Solenoid Valve Performance - No 3rd Or 4th Gear A
P1031  HO2S Heater Current Monitor Control Circuit Sensors 1 B
P1032  HO2S Heater Warm Up Control Circuit Sensors 1 B
P1106  MAP System Performance C
P1107  MAP Sensor Circuit 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 Bank 1, Sensor 1 - Insufficient Switching B
P1134  HO2S Bank 1, Sensor 1 - Transition Time Ratio B
P1153  HO2S Bank 2, Sensor 1 - Insufficient Switching B
P1154  HO2S Bank 2, Sensor 1 - Transition Time Ratio B
P1189 (5) Engine Oil Pressure Switch Circuit C
P1336  Crankshaft System Variation Not Learned A
P1359  Ignition Control Circuit Group A B
P1360  Ignition Control Circuit Group B B
P1372  Crankshaft Position Sensor Circuits Performance B
P1380  EBCM DTC Detected Rough Road Data Unstable C
P1381  Misfire Detected - No EBCM/PCM Serial Data C
P1404  EGR Valve Closed Pintle Position B
P1415  Air System - Bank 1 B
P1416  Air System - Bank 2 B
P1441  EVAP System Flow During Non-Purge B
P1531 (8) A/C Low Side Temperature Sensor Fault N/A
P1536 (8) A/C System - ECT Overtemperature N/A
P1540 (8) A/C System High Pressure N/A
P1545 (8) A/C Clutch Relay Control Circuit C
P1546 (8) A/C Compressor Clutch Relay C
P1554 (10) Cruise Engaged Circuit High Voltage C
P1560 (10) Cruise Control System - Transaxle Not In Drive C
P1564 (10) Cruise Control System - Vehicle Accel. Too High C
P1566 (10) Cruise Control System - Engine RPM Too High C
P1567 (10) Cruise Control System - Active Braking Control Active C
P1570 (10) Cruise Control System - Traction Control Active C
P1571 (11) TCS PWM Circuit No Frequency C
P1574 (10) EBTCM System - Stop Lamp Switch Circuit - High Voltage C
P1575 (10) Extended Travel Brake Switch Circuit - High Voltage C
P1585 (10) Cruise Inhibit Control Circuit C
P1600  PCM Memory Performance A
P1621  PCM Memory Performance A
P1624  Customer Snapshot Data Available C
P1626 (12) Theft Deterrent System Loss Of Serial Communication C
P1627  PCM Memory Performance A
P1630 (12) PCM Unable To Learn Passlock™ Module Password C
P1631 (12) Theft Deterrent System Password Incorrect C
P1633  Ignition 0 Power Circuit - Low Voltage C
P1634  Ignition 1 Power Circuit - Low Voltage C
P1635  5-Volt Reference 1 Circuit B
P1639  5-Volt Reference 2 Circuit B
P1680  PCM Memory A
P1681  PCM Memory A
P1683  PCM Memory B
P1644 (11) Throttle Position Output Circuit C
P1689 (11) Delivered Torque Circuit Fault C
P1811 (4) Maximum Adapt & Long Shift C
P1814 (4) Torque Converter Overstressed C
P1820 (4) Internal Mode Switch Circuit A - Low B
P1822 (4) Internal Mode Switch Circuit B - High B
P1823 (4) Internal Mode Switch Circuit P - Low B
P1825 (4) Internal Mode Switch - Illegal Range B
P1842 (4) 1-2 Shift Solenoid Circuit - Low Voltage B
P1843 (4) 1-2 Shift Solenoid Circuit - High Voltage B
P1845 (4) Transmission Gear Ratio Output Circuit A
P1847 (4) 2-3 Shift Solenoid Circuit - High Voltage A
P1860 (4) TCC PWM Solenoid Circuit - Electrical Malfunction B
P1868 (4) Transmission Fluid Life C
P2610  PCM Memory N/A
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 INSTRUMENT PANELS article in ACCESSORIES & EQUIPMENT.
(6) See appropriate ELECTRIC COOLING FANS article in ENGINE COOLING.
(7) See appropriate STARTERS article in ENGINES.
(8) See appropriate MANUAL A/C-HEATER SYSTEMS article in AIR CONDITIONING & HEATING.
(9) See appropriate GENERATORS & REGULATORS article in ELECTRICAL.
(10) See appropriate CRUISE CONTROL SYSTEMS article in ACCESSORIES & EQUIPMENT.
(11) See appropriate ANTI-LOCK/TCS article in BRAKES.
(12) See appropriate ANTI-THEFT SYSTEMS article in ACCESSORIES & EQUIPMENT.
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