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Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2003 Isuzu Ascender. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC TROUBLE CODE DEFINITIONS

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 "B" Actuator Circuit (Bank 1) B
P0014  Camshaft Position "B" Timing Over Advanced Or System Performance (Bank 1) B
P0105  MAP Sensor Circuit - Insufficient Activity 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
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  Excessive Time To Enter Closed Loop Fuel Control B
P0128  Coolant Temperature Below Thermostat Regulating Temperature B
P0130  HO2S Circuit (Bank 1; Sensor 1) B
P0131  HO2S Circuit - Low Voltage (Bank 1; Sensor 1) B
P0132  HO2S Circuit - High Voltage (Bank 1; Sensor 1) B
P0133  HO2S Circuit - Slow Response (Bank 1; Sensor 1) B
P0134  HO2S Circuit - Insufficient Activity (Bank 1; Sensor 1) B
P0135  HO2S Heater Circuit (Bank 1; Sensor 1) B
P0137  HO2S Circuit - Low Voltage (Bank 1; Sensor 2) B
P0138  HO2S Circuit - High Voltage (Bank 1; Sensor 2) B
P0140  HO2S Circuit - Insufficient Activity (Bank 1; Sensor 2) B
P0141  HO2S Heater Circuit (Bank 1; Sensor 2) B
P0171  Fuel Trim System - Lean (Bank 1) B
P0172  Fuel Trim System - Rich (Bank 1) B
P0201-P0206  Fuel Injector Control Circuit B
P0218 (4) Transmission Fluid Overtemperature C
P0300  Random/Multiple Cylinder Misfire Detected B
P0301-P0306  Cylinder Misfire Detected B
P0326  Knock Sensor Circuit - Range/Performance B
P0327  Knock Sensor 1 Circuit - Low Voltage B
P0332  Knock Sensor 2 Circuit - Low Voltage B
P0335  Crankshaft Position Sensor "A" Circuit B
P0336  Crankshaft Position Sensor "A" Circuit Range/Performance B
P0340  Camshaft Position Sensor "A" Circuit B
P0341  Camshaft Position Sensor "A" Circuit Range/Performance B
P0420  Catalyst System Efficiency Below Threshold A
P0440  EVAP System - Large Leak Detected A
P0442  EVAP System - Small Leak Detected A
P0446  EVAP Vent Valve Control Circuit 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 A
P0506  Idle Control System - RPM Low 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
P0601  PCM Memory A
P0602  PCM Not Programmed A
P0604  PCM Random Access Memory Performance A
P0606  PCM Memory A
P0607  PCM Memory C
P0621 (8) Generator "L" Terminal Circuit C
P0622 (8) Generator Field Circuit 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  Throttle Position Sensor 1 Circuit A
P1133  HO2S Circuit - Insufficient Switching (Bank 1; Sensor 1) B
P1137  HO2S Circuit - Lean System (Bank 1; Sensor 2) B
P1138  HO2S Circuit - High Voltage (Bank 1; Sensor 2) B
P1171  Fuel System Lean During Acceleration C
P1220  Throttle Position Sensor 2 Circuit A
P1221  Throttle Position Sensors 1 & 2 Correlation A
P1271  Accelerator Pedal Position Sensors 1 & 2 Correlation A
P1275  Accelerator Pedal Position Circuit (Sensor 1) A
P1280  Accelerator Pedal Position Circuit (Sensor 2) A
P1336  Crankshaft Position System Variation Not Learned A
P1345  Crankshaft/Camshaft Sensor Correlation B
P1380  Misfire Detected - Rough Road Data Not Available C
P1381  Misfire Detected - No Communication With Brake Control Module 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 B
P1512  Intake Manifold Runner Control Stuck Closed (Bank 1) A
P1514  Throttle Body Performance A
P1515  Commanded Vs. Actual Throttle Position Performance (PCM) A
P1516  Commanded Vs. Actual Throttle Position Performance (TAC Module) A
P1523  Throttle Closed Position Performance C
P1571 (10) Invalid Torque Signal C
P1574 (10) Brake Switch Signal C
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(R) Module Password C
P1631 (11) Theft Deterrent System Password Incorrect C
P1633  Ignition 0 Circuit Performance C
P1635  5-Volt Reference "A" Circuit A
P1639  5-Volt Reference "B" Circuit A
P1680  PCM Memory Performance A
P1681  PCM Memory A
P1682  Throttle Actuator Control Supply Circuits - Correlation Error C
P1810 (4) TFP Valve Position Switch Circuit Malfunction B
P1860 (4) TCC PWM Solenoid Circuit 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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