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Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC System Affected
P0031  Front HO2S Heater Circuit - Low
P0032  Front HO2S Heater Circuit - High
P0037  Rear HO2S Heater Circuit - Low
P0038  Rear HO2S Heater Circuit - High
P0090  Pressure Regulator Control Solenoid Valve Circuit Malfunction
P0101  Mass Airflow Circuit Range/Performance Problem
P0102  Mass Airflow Sensor Circuit - Low Input
P0103  Mass Airflow Sensor Circuit - High Input
P0106  BARO Circuit - Performance Problem
P0107  BARO Circuit - Low Input
P0108  BARO Circuit - High Input
P0111  Intake Air Temperature Sensor Circuit - Performance Problem
P0112  Intake Air Temperature Sensor Circuit - Low Input
P0113  Intake Air Temperature Sensor Circuit - High Input
P0117  Engine Coolant Temperature Sensor Circuit - Low Input
P0118  Engine Coolant Temperature Sensor Circuit - High Input
P0121  Throttle Position Sensor Circuit - Range/Performance Problem
P0122 (3) Throttle Position Sensor Circuit - Low Input
P0123 (3) Throttle Position Sensor Circuit - High Input
P0125  Insufficient Coolant Temperature For Closed Loop Fuel Control
P0126  Coolant Thermostat Stuck Open
P0128  Coolant Thermostat Stuck Open
P0131  HO2S (Front) No Inversion - Low Voltage Stuck
P0132  HO2S (Front) No Inversion - High Voltage Stuck
P0133  HO2S (Front) Circuit - Slow Response
P0134  HO2S (Front) Circuit - No Activity Detected
P0138  HO2S (Rear) Circuit - High Input
P0140  HO2S (Rear) Circuit - No Activity Detected
P0171  Fuel Trim - Too Lean
P0172  Fuel Trim - Too Rich
P0300 (2) Random Misfire Detected
P0301 (2) Cylinder No. 1 Misfire Detected
P0302 (2) Cylinder No. 2 Misfire Detected
P0303 (2) Cylinder No. 3 Misfire Detected
P0304 (2) Cylinder No. 4 Misfire Detected
P0325  Knock Sensor Circuit Malfunction
P0335  Crankshaft Position Sensor Circuit Malfunction
P0340  Camshaft Position (CMP) Sensor Circuit Malfunction
P0401  EGR System - Insufficient Flow
P0402  EGR System - Excessive Flow
P0421  Catalyst System Efficiency Below Threshold
P0442  EVAP Control System, Small Leak Detected
P0443 (1) EVAP Control System Purge Control Valve - Circuit Malfunction
P0451  Fuel Tank Pressure Sensor - Performance Problem
P0452  EVAP Control System Pressure Sensor - Low Input
P0453  EVAP Control System Pressure Sensor - High Input
P0455  EVAP Control System Leak Detected - Blockage Or Large Leak
P0456  EVAP Control System Leak Detected - Very Small Leak
P0461  Fuel Gauge Sender Unit Circuit - Range/Performance Problem
P0462  Fuel Gauge Sender Unit Circuit - Low Input
P0463  Fuel Gauge Sending Unit Circuit - High Input
P0464  Fuel Gauge Sending Unit Circuit - Slosh Check
P0480 (1) Cooling Fan Relay Circuit
P0500 (4) Vehicle Speed Sensor Malfunction
P0505  Idle Air Control Valve Circuit Malfunction
P0506  Idle Control System - RPM Less Than Expected
P0507  Idle Control System - RPM Greater Than Expected
P0550  Power Steering Pressure Switch Circuit Malfunction
P0660 (1) Variable Inertia Charging System Solenoid Valve Circuit Malfunction
P0703  Brake Switch Input Circuit Malfunction
P0704  Clutch Switch Input Circuit Malfunction (MTX)
P0705 (5) Automatic Transaxle
P0706 (5) Automatic Transaxle
P0710 (5) Automatic Transaxle
P0711 (5) Automatic Transaxle
P0715 (5) Automatic Transaxle
P0731 (5) Automatic Transaxle
P0732 (5) Automatic Transaxle
P0733 (5) Automatic Transaxle
P0734 (5) Automatic Transaxle
P0741 (5) Automatic Transaxle
P0742 (5) Automatic Transaxle
P0745 (5) Automatic Transaxle
P0751 (5) Automatic Transaxle
P0752 (5) Automatic Transaxle
P0753 (5) Automatic Transaxle
P0756 (5) Automatic Transaxle
P0757 (5) Automatic Transaxle
P0758 (5) Automatic Transaxle
P0761 (5) Automatic Transaxle
P0762 (5) Automatic Transaxle
P0763 (5) Automatic Transaxle
P0766 (5) Automatic Transaxle
P0767 (5) Automatic Transaxle
P0768 (5) Automatic Transaxle
P0771 (5) Automatic Transaxle
P0772 (5) Automatic Transaxle
P0773 (5) Automatic Transaxle
P0850  Neutral Switch Input Circuit Malfunction
P1449 (1) Canister Drain Cut Valve - Open Or Short
P1450  EVAP Control System Malfunction - Excessive Vacuum
P1487 (1) EGR Boost Sensor Solenoid Valve Circuit Malfunction
P1496 (1) EGR Valve Solenoid Coil No. 1 - Open Or Short
P1497 (1) EGR Valve Solenoid Coil No. 2 - Open Or Short
P1498 (1) EGR Valve Solenoid Coil No. 3 - Open Or Short
P1499 (1) EGR Valve Solenoid Coil No. 4 - Open Or Short
P1562  PCM +BB Voltage Low
P1631 (1) Generator Output Voltage Signal - No Electricity
P1632 (1) Battery Voltage Circuit Malfunction
P1633 (1) Battery Overcharge
P1634 (1) Generator Terminal "B" Circuit Open
P2006  Variable Tumble Control System - Stuck Closed
P2009  Variable Tumble Control System Solenoid Valve Circuit - Low Input
P2010  Variable Tumble Control System Solenoid Valve Circuit - High Input
(1) Malfunction Indicator Light (MIL) will not illuminate.
(2) Malfunction Indicator Light (MIL) should flash.
(3) Overdrive indicator light should flash.
(4) Testing is for MTX only. On ATX models, see appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.
(5) See appropriate DIAGNOSIS article in AUTOMATIC TRANSMISSIONS.