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Diagnostic Trouble Code Definitions

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Type(1) Component/System Most Likely Cause
P0101  B MAF Sensor Ckt Range/Performance Problem MAF Sensor
P0102  A MAF Sensor Ckt Low Frequency Open/Short, MAF Sensor Or PCM
P0103  A MAF Sensor Ckt High Frequency Open/Short, MAF Sensor Or PCM
P0106  A MAP Sensor Ckt Range/Performance Problem MAP Sensor
P0107  A MAP Sensor Ckt Low Frequency Open/Short, MAP Sensor Or PCM
P0108  A MAP Sensor Ckt High Frequency Open, MAP Sensor Or PCM
P0112  A IAT Sensor Ckt Low Frequency Short, IAT Sensor Or PCM
P0113  A IAT Sensor Ckt High Frequency Open, IAT Sensor Or PCM
P0117  A ECT Sensor Ckt Low Frequency Short, ECT Sensor Or PCM
P0118  A ECT Sensor Ckt High Frequency Open, ECT Sensor Or PCM
P0121  A TP Sensor Ckt Range/Performance Problem TP Sensor Or PCM
P0122  A TP Sensor Ckt Low Frequency Open/Short, TP Sensor Or PCM
P0123  A TP Sensor Ckt High Frequency Open Ckt, TP Sensor Or PCM
P0125  B ECT Sensor Ckt Excessive Warm-Up Time To Closed Loop Cooling System, ECT Or PCM
P0131  A Bank 1 Primary HO2S Ckt Low Voltage Short, HO2S Sensor, Fuel Supply Or PCM
P0132  A Bank 1 Primary HO2S Ckt High Voltage Open, HO2S Sensor Or PCM
P0133  B Bank 1 Primary HO2S Slow Response HO2S Sensor Or Exhaust System
P0134  A Bank 1 Primary HO2S Insufficient Activity Poor Connections, HO2S Sensor Or PCM
P0135  B Bank 1 Primary HO2S Heater Ckt Malfunction Open/Short Or PCM
P0137  A Bank 1 Secondary HO2S Ckt Low Voltage Short, HO2S Or PCM
P0138  A Bank 1 Secondary HO2S Ckt High Voltage Open, HO2S Or PCM
P0140  A Bank 1 Secondary HO2S Ckt. Insufficient Activity Short In Ckt, HO2S Or PCM
P0141  B Bank 1 Secondary HO2S Ckt Malfunction Open/Short In Heater Ckt Or PCM
P0143  A Bank 1 Secondary HO2S Low Voltage (M/T Only) Short, HO2S Or PCM
P0144  A Bank 1 Secondary HO2S High Voltage (M/T Only) Open/Short, HO2S Or PCM
P0146  A Bank 1 Secondary HO2S Insufficient Activity (M/T Only) Short, HO2S Or PCM
P0147  B Bank 1 Secondary HO2S Heater Ckt (M/T Only) Short Or HO2S
P0151  A Bank 2 Secondary HO2S Ckt Low Voltage Short Or PCM
P0152  A Bank 2 Secondary HO2S Ckt High Voltage Short, HO2S Or PCM
P0153  B Bank 2 Secondary HO2S Ckt Slow Response Open/Short, HO2S Contamination Or PCM
P0154  A Bank 2 Secondary HO2S Insufficient Activity HO2S Or PCM
P0155  B Bank 2 Secondary HO2S Heater Ckt Short Or HO2S
P0157  A Bank 2 Secondary HO2S Ckt Low Voltage (A/T Only) Short Or PCM
P0158  A Bank 2 Secondary HO2S Ckt. High Voltage (A/T Only) Short, HO2S Or PCM
P0160  A Bank 2 Secondary HO2S Ckt Insufficient Activity (A/T Only) Short, HO2S Or PCM
P0161  B Bank 2 Secondary HO2S Heater Ckt LOAD Malfunction (A/T Only) Short Or HO2S
P0171  B Bank 1 System Too Lean Fuel Supply/Contamination, Primary HO2S, MAP, Leaking Exhaust Or Valve Clearance
P0172  B Bank 1 System Too Rich Fuel Supply, Primary HO2S, MAP Sensor, Fuel Contamination Or Valve Clearance
P0174  B Bank 2 System Too Lean Air Intake System, MAF Sensor, Fuel Supply Or Exhaust System
P0175  B Bank 2 System Too Rich Air Intake System, MAF Sensor, Fuel Supply Or TP Sensor
P0201  A Injector No. 1 Ckt Malfunction Open/Short Or PCM
P0202  A Injector No. 2 Ckt Malfunction Open/Short Or PCM
P0203  A Injector No. 3 Ckt Malfunction Open/Short Or PCM
P0204  A Injector No. 4 Ckt Malfunction Open/Short Or PCM
P0205  A Injector No. 5 Ckt Malfunction Open/Short Or PCM
P0206  A Injector No. 6 Ckt Malfunction Open/Short Or PCM
P0218(2) D Transmission High Temperature Condition (A/T Only) Miscellaneous
P0300  B Random Misfire Detected Ignition System, Fuel Supply, MAP Sensor, EGR System, IAC Valve Or Contaminated Fuel
P0301  B Cylinder No. 1 Misfire Detected Miscellaneous
P0302  B Cylinder No. 2 Misfire Detected Miscellaneous
P0303  B Cylinder No. 3 Misfire Detected Miscellaneous
P0304  B Cylinder No. 4 Misfire Detected Miscellaneous
P0305  B Cylinder No. 5 Misfire Detected Miscellaneous
P0306  B Cylinder No. 6 Misfire Detected Miscellaneous
P0325  A Knock Sensor (KS) Ckt Malfunction PCM
P0327  A Knock Sensor (KS) Ckt Open/Short, KS Or PCM
P0336  B CKP Sensor Range/Performance CKP Sensor, Valve Timing Or Timing Belt Skipped Teeth
P0337  B CKP Ckt Low Frequency Open/Short, CKP Sensor Or PCM
P0341  A CKP Ckt Performance Open/Short, CKP Sensor, Faulty Or Missing CKP Magnet OR PCM Missing CKP Magnet Or PCM
P0342  A CKP Sensor Low Frequency CKP Sensor/Magnet Or PCM
P0351  A Ignition Coil 1 Ckt Ignition Control Module (ICM), Open/Short Or PCM Miscellaneous
P0352  A Ignition Coil 2 Ckt Miscellaneous
P0353  A Ignition Coil 3 Ckt Miscellaneous
P0354  A Ignition Coil 4 Ckt Miscellaneous
P0355  A Ignition Coil 5 Ckt Miscellaneous
P0356  A Ignition Coil 6 Ckt Miscellaneous
P0401  A Insufficient EGR Flow Detected EGR Valve Or Line
P0420  A Bank 1 Catalyst System Efficiency Below Threshold Catalytic Converter Or Secondary HO2S
P0430  A Bank 2 Catalyst System Efficiency Below Threshold (A/T Only) Catalytic Converter Or Secondary HO2S
P0440  A EVAP System Canister Purge Valve, Vent Solenoid Or Hoses
P0441  B (3) Evaporative Emission Control System, Incorrect Purge Flow EVAP Canister, Vacuum Switch, Purge Solenoid Or PCM
P0442  A EVAP Small Leak Detected Vent Solenoid, Fuel Cap Or Lines
P0446  A EVAP Canister Vent Blocked Vent Solenoid Or Canister
P0502  A VSS Ckt Low Frequency Open/Short, VSS Or PCM
P0506  B Idle Control System Low RPM IAC Valve Or PCM
P0507  B Idle Control System High RPM IAC Valve Or PCM
P0560(2) D System Voltage Malfunction (A/T Only) Miscellaneous
P0562  D System Voltage Low Open Or PCM
P0563  D System Voltage High PCM
P0601  A PCM Memory Check Sum Error PCM
P0700(2) D Automatic Transaxle Miscellaneous
P0705(2) D Trans. Range Sensor Ckt Malfunction Miscellaneous
P0706(2) D Trans. Range Sensor Rationality Miscellaneous
P0712(2) D Trans. Fluid Temperature Low Voltage Miscellaneous
P0713(2) D Trans. Fluid Temperature High Voltage Miscellaneous
P0715(2) D Trans. Jerks Hard When Shifting (A/T) Open/Short In Mainshaft Speed Sensor Ckt Or Faulty Mainshaft Speed Sensor
P0719(2) D Brake Switch Ckt Low Miscellaneous
P0720(2) D Lock-up Clutch Does Not Engage (A/T) Open Or Short In Countershaft Speed Sensor Ckt
P0720(2) D Lock-up Clutch Does Not Engage (A/T) Or Faulty Countershaft Speed Sensor
P0722(2) A Output Speed Sensor Ckt No Signal Miscellaneous
P0723(2) A Output Speed Sensor Ckt Intermittent Signal Miscellaneous
P0724(2) D Brake Switch Ckt High Miscellaneous
P0730(2) C Won't Shift Between 1/2nd, 2/3rd, 2/4th. Stuck in 1st Or 4th gears (A/T) Faulty Shift Control System
P0740(2) ..... Lock-up clutch does not engage/disengage Unstable Idle Speed (A/T) Faulty Lock-up Control system
P0742(2) A Torque Converter Clutch Ckt Stuck On Miscellaneous
P0748(2) C Trans. Pressure Control Solenoid Electrical Ckt Fault Miscellaneous
P0751(2) B Trans. Shift Solenoid "A" Performance Or Stuck Off (A/T Only) Miscellaneous
P0753(2) A Trans. Shift Solenoid "A" - Electrical Ckt Fault Open/Short In Ckt. Or Faulty Solenoid
P0756(2) B Trans. Shift Solenoid "B" Performance Stuck Off (A/T Only) Miscellaneous
P0758(2) A Trans. Shift Solenoid "B" - Electrical Ckt Fault Open/Short In Ckt Or Faulty Solenoid
P1106  D MAP Ckt Intermittent High Voltage Open/Short In Ckt
P1107  D MAP/Barometric Pressure Ckt Low Voltage Intermittent Open/Short Or PCM
P1111  D IAT Ckt Intermittent High Voltage Poor Ground/Open Ckt
P1112  D IAT Ckt Intermittent Low Voltage Short In Ckt
P1114  D ECT Ckt Intermittent Low Voltage Intermittent Short
P1115  D ECT Ckt Intermittent High Voltage Poor PCM Ground Or Open
P1121  D TP Ckt Intermittent High Voltage Open/Short Or Poor Ground In Ckt
P1122  D TP Ckt Intermittent Low Voltage Open/Short Or Poor Ground In Ckt
P1133  B Bank 1 Primary HO2S Ckt Insufficient Switching Exhaust Leak, Short In Ckt, HO2S Or PCM
P1134  B Bank 1 Primary HO2S Ckt Transition Time Ratio Exhaust Leak, Open/Short In Ckt, HO2S Or PCM
P01153  B Bank 2 Primary HO2S Ckt Insufficient Switching Exhaust Leak, Short In Ckt, HO2S Or PCM
P1154  B Bank 2 Primary HO2S Ckt Transition Time Ratio Exhaust Leak, Open/Short In Ckt, HO2S Or PCM
P1171  A Fuel System Lean During Acceleration Fuel Pressure, Incorrect Fuel Or Hot Fuel
P1390  D G-Sensor Ckt Intermittent Low Voltage Open/Short
P1391  B G-Sensor Ckt Performance G-Sensor Or PCM
P1392  A G-Sensor Ckt Low Voltage PCM
P1393  A G-Sensor Ckt High Voltage Poor Grounds, G-Sensor Or PCM
P1394  D G-Sensor Ckt Intermittent High Voltage Poor Ground, MAP Or G-Sensor
P1406  A EGR Valve Pintle Position Ckt Open/Short, EGR Or PCM
P1441  B EVAP System Flow During Non-Purge Short, PCM, EVAP Control Solenoid Or EVAP Vacuum Switch
P1442  B EVAP System Vacuum Switch Circuit Open/Short, PCM Or EVAP Vacuum Switch
P1508  B Idle Control System Low RPM IAC Valve Ckt Or PCM
P1509  B Idle Control System High RPM Vacuum Leaks, IAC Ckt Or PCM
P1618  A Serial Peripheral Interface. PCM Interprocessor Communication Error PCM
P1640  D ODM "A" Fault Open in Ignition Ckt Or PCM
P1705(2) ..... (3) Short In A/T Gear Position Switch Wire Or Faulty A/T Gear Position Switch
P1706(2) ..... (4) Open A/T Gear Position Switch Ckt Or Faulty A/T Gear Position Switch
P1753(2) ..... Lock-Up Clutch Does Not Engage Or Disengage. Unstable Idle (A/T) Open/Short In Lock-Up Control Solenoid
P1753(2) ..... Lock-up Clutch Won't Engage/Disengage. Unstable Idle (A/T) Valve "A" Ckt Or Faulty Solenoid
P1758(2) ..... Lock-up Clutch Does Not Engage (A/T) Open/Short In Lock-up Control Solenoid
P1758(2) ..... Lock-up Clutch Does Not Engage (A/T) Valve "B" Ckt Or Faulty Solenoid
P1860 A TCC PWM Solenoid Ckt Fault Miscellaneous
P1870 A Transmission Component Slipping Miscellaneous
(1) See TRIP DETECTION LOGIC for type Definitions
(2) See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS section.
(3) Only Shifts In 2nd and 4th Gears. Lock-up Clutch Does Not Engage (A/T).
(4) Only Shifts In 2nd And 4th Gears. Lock-up Clutch Does Not Engage Or Engages and Disengages Alternately (A/T).
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