Diagnostic Trouble Code Definitions
If any DTCs not listed are displayed by a scan tool, scan tool data may be faulty. Notify scan tool manufacturer of any DTCs displayed that are not included in DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION table.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC/Type | Component/System | Most Likely Cause | |||
|---|---|---|---|---|---|
| P0101/B | MAF Sensor Circuit Range/Performance Problem | MAF Sensor | |||
| P0102/A | MAF Sensor Circuit Low Frequency | Open/Short, MAF Sensor Or PCM | |||
| P0103/A | MAF Sensor Circuit High Frequency | Open/Short, MAF Sensor Or PCM | |||
| P0106/B | MAP Sensor Circuit Range/Performance Problem | MAP Sensor | |||
| P0107/A | MAP Sensor Circuit Low Frequency | Open/Short, MAP Sensor Or PCM | |||
| P0108/A | MAP Sensor Circuit High Frequency | Open, MAP Sensor Or PCM | |||
| P0112/A | IAT Sensor Circuit Low Frequency | Short, IAT Sensor Or PCM | |||
| P0113/A | IAT Sensor Circuit High Frequency | Open, IAT Sensor Or PCM | |||
| P0117/A | ECT Sensor Circuit Low Frequency | Short, ECT Sensor Or PCM | |||
| P0118/A | ECT Sensor Circuit High Frequency | Open, ECT Sensor Or PCM | |||
| P0121/A | TP Sensor Circuit Range/Performance Problem | TP Sensor Or PCM | |||
| P0122/A | TP Sensor Circuit Low Frequency | Open/Short, TP Sensor Or PCM | |||
| P0123/A | TP Sensor Circuit High Frequency | Open Circuit, TP Sensor Or PCM | |||
| P0125/B | ECT Sensor Circuit Excessive Warm-Up Time To Closed Loop | Cooling System, ECT Or PCM | |||
| P0131/A | Bank 1 Primary HO2S Circuit Low Voltage | Short, HO2S Sensor, Fuel Supply Or PCM | |||
| P0132/A | Bank 1 Primary HO2S Circuit High Voltage | Open, HO2S Sensor Or PCM | |||
| P0133/B | Bank 1 Primary HO2S Slow Response | Open/Short, HO2S Sensor Or PCM | |||
| P0134/A | Bank 1 Primary HO2S Insufficient Activity | Poor Connections, HO2S Sensor Or PCM | |||
| P0135/B | Bank 1 Primary HO2S Heater Circuit Malfunction | Open/Short Or HO2S | |||
| P0137/A | Bank 1 Secondary HO2S Circuit Low Voltage | Short, HO2S Or PCM | |||
| P0138/A | Bank 1 Secondary HO2S Circuit High Voltage | Open/Short, HO2S Or PCM | |||
| P0140/A | Bank 1 Secondary HO2S Circuit Insufficient Activity | Open, HO2S Or PCM | |||
| P0141/B | Bank 1 Secondary HO2S Circuit Malfunction | Open Or HO2S | |||
| P0143/A | Bank 1 Tertiary HO2S Low Voltage (M/T Only) | Short Or PCM | |||
| P0144/A | Bank 1 Tertiary HO2S High Voltage (M/T Only) | Open/Short, HO2S Or PCM | |||
| P0146/A | Bank 1 Tertiary HO2S Insufficient Activity (M/T Only) | Short, HO2S Or PCM | |||
| P0147/B | Bank 1 Tertiary HO2S Heater Circuit (M/T Only) | Open/Short Or HO2S | |||
| P0151/A | Bank 2 Secondary HO2S Circuit Low Voltage | Short Or PCM | |||
| P0152/A | Bank 2 Secondary HO2S Circuit High Voltage | Short, HO2S Or PCM | |||
| P0153/B | Bank 2 Secondary HO2S Circuit 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 Circuit | Short Or HO2S | |||
| P0157/A | Bank 2 Secondary HO2S Circuit Low Voltage (A/T Only) | Short Or PCM | |||
| P0158/A | Bank 2 Secondary HO2S Circuit High Voltage (A/T Only) | Short, HO2S Or PCM | |||
| P0160/A | Bank 2 Secondary HO2S Circuit Insufficient Activity (A/T Only) | Open, HO2S Or PCM | |||
| P0161/B | Bank 2 Secondary HO2S Heater Circuit Malfunction (A/T Only) | Open Or HO2S | |||
| P0171/B | Bank 1 System Too Lean | Fuel Supply/Contamination, Primary HO2S, MAF, Leaking Exhaust Or Valve Clearance | |||
| P0172/B | Bank 1 System Too Rich | Fuel Supply, Primary HO2S, MAF 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 | |||
| P0200/A | Injector Control Circuit | Open/Short Or Faulty Injector | |||
| P0201/A | Injector No. 1 Circuit Malfunction | Open/Short Or PCM | |||
| P0202/A | Injector No. 2 Circuit Malfunction | Open/Short Or PCM | |||
| P0203/A | Injector No. 3 Circuit Malfunction | Open/Short Or PCM | |||
| P0204/A | Injector No. 4 Circuit Malfunction | Open/Short Or PCM | |||
| P0205/A | Injector No. 5 Circuit Malfunction | Open/Short Or PCM | |||
| P0206/A | Injector No. 6 Circuit Malfunction | Open/Short Or PCM | |||
| P0218/D | Transmission High Temp. Condition (A/T Only) | (1) Miscellaneous | |||
| P0300/B | Random Misfire Detected | Ignition System, Fuel Supply, MAF 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/B | Knock Sensor (KS) Circuit Malfunction | PCM | |||
| P0327/B | KS Circuit | Open/Short, KS Or PCM | |||
| P0335/B | Crankshaft Position (CKP) Sensor Circuit Malfunction | CKP Sensor, Circuit Or PCM | |||
| P0336/B | CKP Sensor Range/Performance Or Reference Signal | CKP Sensor, Valve Timing, Timing Belt Skipped Teeth, Or PCM | |||
| P0337/B | CKP Circuit Low Frequency | Open/Short, CKP Sensor Or PCM | |||
| P0338/A | CKP Sensor High Frequency | CKP Sensor Circuit Or VCM | |||
| P0339/A | CKP Sensor Circuit Intermittent | CKP Sensor, CKP Sensor Circuit Or VCM | |||
| P0340/A | CMP Sensor Circuit | CMP Sensor, CMP Sensor Circuit Or VCM | |||
| P0341/A | CMP Circuit Performance | Open/Short, CMP Sensor, Faulty Or Missing CMP Magnet OR PCM | |||
| P0342/A | CMP Sensor Low Frequency | CMP Sensor/Magnet Or PCM | |||
| P0351/A | Ignition Coil 1 Circuit | Ignition Control Module (ICM), Open/Short Or PCM | |||
| P0352/A | Ignition Coil 2 Circuit | Miscellaneous | |||
| P0353/A | Ignition Coil 3 Circuit | Miscellaneous | |||
| P0354/A | Ignition Coil 4 Circuit | Miscellaneous | |||
| P0355/A | Ignition Coil 5 Circuit | Miscellaneous | |||
| P0356/A | Ignition Coil 6 Circuit | Miscellaneous | |||
| P0401/A | Insufficient EGR Flow Detected | MAP Sensor, EGR Valve Or Line | |||
| P0402/B | EGR Pintle Crank Error | Open, Poor Connections, Open Or EGR Valve | |||
| P0404/B | EGR Valve Pintle Position Open | EGR Valve, EGR Valve Circuit Or PCM | |||
| P0405/A | EGR Valve Sensor Signal Low | Short, EGR Valve Or PCM | |||
| P0406/A | EGR Sensor Signal High | Open/Short, EGR Valve Or PCM | |||
| 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 | EVAP Canister, Canister Purge Valve, EVAP Vent Solenoid Or Hoses | |||
| P0442/A | EVAP Small Leak Detected | Vent Solenoid, Fuel Cap Or Lines | |||
| P0443/A | Evaporative Emission Control System Purge Valve Malfunction | Open/Short, Canister Purge Control Solenoid Or PCM | |||
| P0446/A | |||||
| Except 4.3L | EVAP System Canister Vent Blocked | Short, EVAP Canister Vent Solenoid Or EVAP Canister | |||
| 4.3L | EVAP Vent Valve Performance | Short, Poor Connections, EVAP Canister Or EVAP Canister Vent Solenoid | |||
| P0449/A | EVAP Vent Valve/Solenoid Circuit Malfunction | Open/Short, Solenoid | |||
| P0452/D | Fuel Tank Pressure Sensor Signal Low | Open Or PCM | |||
| P0453/D | Fuel Tank Pressure Sensor Signal High | Open/Short, Pressure Sensor Or PCM | |||
| P0460/D | EVAP Fuel Level Sensor Circuit | Miscellaneous | |||
| P0461/D | Fuel Level Sensor Circuit Performance | Fuel Level Sensor/Circuit Or PCM/VCM | |||
| P0462/D | Fuel Level Sensor Circuit Low Voltage | Open/Short, Fuel Level Sensor Or PCM/VCM | |||
| P0463/D | Fuel Level Sensor Circuit High Voltage | Fuel Level Sensor/Circuit Or PCM/VCM | |||
| P0480/D | Cooling Fan No. 1 Control Circuit Malfunction | Open/Short, Low Fan Relay Or PCM | |||
| P0481/D | Cooling Fan No. 2 Control Circuit Malfunction | Open/Short, High Fan Relay Or PCM | |||
| P0500/A | Vehicle Speed Sensor (VSS) Circuit | VSS, Circuit Or PCM | |||
| P0501/A | Vehicle Speed Sensor (VSS) Circuit Range/Performance | VSS, Circuit Or PCM | |||
| P0502/A | VSS Circuit Low Frequency | Open/Short, VSS Or PCM | |||
| P0506/B | Idle Control System Low RPM | Open/Short, IAC Valve Or PCM | |||
| P0507/B | Idle Control System High RPM | IAC Valve Or PCM | |||
| P0530/D | A/C Refrigerant Pressure Sensor Circuit | Open, A/C Refrigerant Pressure Sensor Or PCM | |||
| P0532/D | A/C Refrigerant Pressure Sensor Circuit Low Input | Open/Short, A/C Refrigerant Pressure Sensor Or PCM | |||
| P0533/D | A/C Refrigerant Pressure Sensor Circuit High Input | Open/Short, A/C Refrigerant Pressure Sensor Or PCM | |||
| P0560/D | System Voltage Malfunction (A/T Only) | (1) Miscellaneous | |||
| P0562/D | System Voltage Low | Open Or PCM | |||
| P0563/D | System Voltage High | Generator Or PCM | |||
| P0601/A | Powertrain Control module (PCM) Memory Check Sum Error | PCM | |||
| P0602/D | PCM Not Programmed | PCM | |||
| P0603/A | VCM Memory Reset | VCM | |||
| P0604/D | VCM Random Access Memory (RAM) | VCM | |||
| P0704/B | Clutch Switch Circuit | Clutch Switch/Circuit Or VCM | |||
| P0705/D | Transmission Range Switch Illegal Position | (1) Miscellaneous | |||
| P0706/D | Transmission Range Sensor Performance | (1) Miscellaneous | |||
| P0712/D | Transmission Fluid Temperature Low Voltage | (1) Miscellaneous | |||
| P0713/D | Transmission Fluid Temperature High Voltage | (1) Miscellaneous | |||
| P0719/D | Brake Switch Circuit Low | (1) Miscellaneous | |||
| P0722/A | Output Speed Sensor Circuit No Signal | (1) Miscellaneous | |||
| P0723/A | Output speed Sensor Circuit Intermittent Signal | (1) Miscellaneous | |||
| P0724/D | Brake Switch Circuit High | (1) Miscellaneous | |||
| P0730/C | Incorrect Gear Ratio. Stuck in 1st Or 4th Gear (A/T) | (1) Faulty Shift Control System | |||
| P0742/A | Torque Converter Clutch Circuit Stuck On | (1) Miscellaneous | |||
| P0748/C | Transmission Pressure Control Solenoid Electrical Circuit Fault | (1) Miscellaneous | |||
| P0751/B | Transmission Shift Solenoid "A" Performance Or Stuck Off (A/T) | (1) Miscellaneous | |||
| P0753/A | Transmission Shift Solenoid "A" - Electrical Circuit Fault | (1) Open/Short Or Faulty Solenoid | |||
| P0756/B | Transmission Shift Solenoid "B" Performance Stuck Off (A/T) | (1) Miscellaneous | |||
| P0758/A | Transmission Shift Solenoid "B" - Electrical Circuit Fault | (1) Open/Short Or Faulty Solenoid | |||
| P1106/D | Manifold Absolute Pressure (MAP) Circuit Intermittent High Voltage | Open/Short In Circuit | |||
| P1107/D | MAP/Barometric Pressure Circuit Low Voltage | Intermittent Open/Short Or PCM | |||
| P1111/D | Intake Air Temperature (IAT) Circuit Intermittent High Voltage | Poor Ground Or Open Circuit | |||
| P1112/D | IAT Circuit Intermittent Low Voltage | Short In Circuit | |||
| P1114/D | Engine Coolant Temperature (ECT) Circuit Intermittent Low Voltage | Intermittent Short | |||
| P1115/D | ECT Circuit Intermittent High Voltage | Poor PCM Ground Or Open | |||
| P1121/D | Throttle Position (TP) Circuit Intermittent High Voltage | Open/Short Or Poor Ground In Circuit | |||
| P1122/D | TP Circuit Intermittent Low Voltage | Open/Short Or Poor Ground In Circuit | |||
| P1133/B | Bank 1 Primary HO2S Circuit Insufficient Switching | Exhaust Leak, Short In Circuit, HO2S Or PCM | |||
| P1134/B | Bank 1 Primary HO2S Circuit Transition Time Ratio | Exhaust Leak, Open/Short In Circuit, HO2S Or PCM | |||
| P1153/B | Bank 2 Primary HO2S Circuit Insufficient Switching | Exhaust Leak, Short In Circuit, HO2S Or PCM | |||
| P1154/B | Bank 2 Primary HO2S Circuit Transition Time Ratio | Exhaust Leak, Open/Short In Circuit HO2S Or PCM | |||
| P1171/A | Fuel System Lean During Acceleration | Faulty Or Incorrect Fuel Pump, Plugged Strainer, Incorrect Fuel Or Hot Fuel | |||
| P1336 | CKP System Variation Not Learned | Miscellaneous | |||
| P1345 | CMP/CKP Sensor Correlation | Mechanical Problem | |||
| P1351 | Ignition Control Circuit High Voltage | Ignition Module/Circuit Or VCM | |||
| P1361 | Ignition Control Circuit Low Voltage | Ignition Module/Circuit Or VCM | |||
| P1380/A | ABS DTC Detected Rough Road Data Unusable | PCM | |||
| P1381/A | |||||
| Except Hombre | ABS Rough Road Class 2 Serial Link Error | Open Circuit Or PCM | |||
| Hombre | Misfire Detected No EBCM/VCM Serial Data | EBCM | |||
| P1404/A | EGR Valve Closed Pintle Position | EGR Valve/Circuit Or PCM | |||
| P1441/B | Evaporative Emission (EVAP) System Flow During Non-Purge | Short, PCM, EVAP Purge 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 Circuit Or PCM | |||
| P1509/B | Idle Control System High RPM | Vacuum Leaks, IAC Circuit Or PCM | |||
| P1546/D | A/C Clutch Output Circuit Malfunction | Open/Short, A/C Clutch Relay Or PCM | |||
| P1618/A | Serial Peripheral Interface. PCM Interprocessor Communication Error | PCM | |||
| P1621 | PCM Memory Performance | PCM | |||
| P1625/A | Unexpected PCM Reset | Open/Short Or PCM | |||
| P1626/C | Loss Of Serial Communication With VTD System | Open Circuit(s) Or Poor Connections | |||
| P1627 | Driver "1" Input High Voltage | Open/Short Or PCM | |||
| P1631 | Theft Deterrent Password Incorrect | Miscellaneous | |||
| P1632 | Vehicle Theft Deterrent (VTD) System Fuel Disabled | Miscellaneous | |||
| P1640/D | ODM "A" Fault | Open in Ignition Circuit Or PCM | |||
| P1650/D | ODM "A" Fault | Open in Ignition Circuit Or PCM | |||
| U1000 | Class Communication ID Not Learned | Open/Short Circuit | |||
| U1026 | Loss Of ATCM Communication | Open/Short Circuit | |||
| U1041 | Loss Of EBCM Communication | Open/Short Circuit | |||
| U1064 | Loss Of BCM &/Or VTD Communication | Open/Short Circuit | |||
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