Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Trouble Code Definitions
If a "P" series DTC appears that is not listed in DIAGNOSTIC TROUBLE CODE DEFINITIONS table, see DTC P1001: DATA LINK CONNECTOR MALFUNCTION OR DTC NOT LISTED under DIAGNOSTIC TESTS. On some models, PCM is capable of storing some body DTCs. If any "B", "C" or "U" series DTCs are retrieved (example DTC B1213, C1702 or U2195), go to appropriate MODULE COMMUNICATIONS NETWORK article in ACCESSORIES & EQUIPMENT to determine test to perform.
| DTC | Description | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P0102 | Mass Airflow (MAF) Signal | ||||||||||||
| P0103 | Mass Airflow (MAF) Signal | ||||||||||||
| P0107 | Manifold Absolute Pressure (MAP) Sensor (2.3L) | ||||||||||||
| P0108 | Manifold Absolute Pressure (MAP) Sensor (2.3L) | ||||||||||||
| P0109 | Manifold Absolute Pressure (MAP) Sensor (2.3L) | ||||||||||||
| P0112 | Intake Air Temperarure (IAT) Sensor | ||||||||||||
| P0113 | Intake Air Temperarure (IAT) Sensor | ||||||||||||
| P0117 | Engine Coolant Temperature (ECT) Sensor | ||||||||||||
| P0118 | Engine Coolant Temperature (ECT) Sensor | ||||||||||||
| P0121 | Throttle Position (TP) Sensor | ||||||||||||
| P0122 | Throttle Position (TP) Sensor | ||||||||||||
| P0123 | Throttle Position (TP) Sensor | ||||||||||||
| P0125 | Engine Coolant Temperature (ECT) Sensor | ||||||||||||
| P0131 | HO2S-11 (Front Right V6 Or Front 4-Cyl.) | ||||||||||||
| P0133 | HO2S-11 (Front Right V6 Or Front 4-Cyl.) | ||||||||||||
| P0135 | HO2S HTR-11 (Front Right V6 Or Front 4-Cyl.) | ||||||||||||
| P0136 | HO2S-12 (Bank 1) | ||||||||||||
| P0141 | HO2S HTR-12 (Rear) | ||||||||||||
| P0151 | HO2S-21 (Front Left) | ||||||||||||
| P0153 | HO2S-21 (Front Left) | ||||||||||||
| P0155 | HO2S HTR-21 (Front Left) | ||||||||||||
| P0171 | Adaptive Fuel Control | ||||||||||||
| P0172 | Adaptive Fuel Control | ||||||||||||
| P0174 | Adaptive Fuel Control | ||||||||||||
| P0175 | Adaptive Fuel Control | ||||||||||||
| P0176 | Flexible Fuel (FF) Sensor Malfunction | ||||||||||||
| P0201 | Fuel Injector No. 1 Malfunction | ||||||||||||
| P0202 | Fuel Injector No. 2 Malfunction | ||||||||||||
| P0203 | Fuel Injector No. 3 Malfunction | ||||||||||||
| P0204 | Fuel Injector No. 4 Malfunction | ||||||||||||
| P0205 | Fuel Injector No. 5 Malfunction | ||||||||||||
| P0206 | Fuel Injector No. 6 Malfunction | ||||||||||||
| P0230 | Fuel Pump (FP) Primary Or Secondary Circuit | ||||||||||||
| P0231 | Fuel Pump (FP) Primary Or Secondary Circuit | ||||||||||||
| P0232 | Fuel Pump (FP) Primary Or Secondary Circuit | ||||||||||||
| P0300 | Multiple Misfire Detection | ||||||||||||
| P0301 | Cylinder No. 1 Misfire | ||||||||||||
| P0302 | Cylinder No. 2 Misfire | ||||||||||||
| P0303 | Cylinder No. 3 Misfire | ||||||||||||
| P0304 | Cylinder No. 4 Misfire | ||||||||||||
| P0305 | Cylinder No. 5 Misfire | ||||||||||||
| P0306 | Cylinder No. 6 Misfire | ||||||||||||
| P0320 | Crankshaft Position (CKP) Sensor | ||||||||||||
| P0325 | Knock Sensor (KS) | ||||||||||||
| P0326 | Knock Sensor (KS) | ||||||||||||
| P0340 | Camshaft Position (CMP) Sensor | ||||||||||||
| P0350 | Ignition Coil Primary/Secondary Circuit Malfunction | ||||||||||||
| P0351 | Ignition Coil A (Cyl. 1) Primary Circuit Malfunction | ||||||||||||
| P0352 | Ignition Coil B (Cyl. 2) Primary Circuit Malfunction | ||||||||||||
| P0353 | Ignition Coil C (Cyl. 3) Primary Circuit Malfunction | ||||||||||||
| P0354 | Ignition Coil D (Cyl. 4) Primary Circuit Malfunction | ||||||||||||
| P0355 | Ignition Coil E (Cyl. 5) Primary Circuit Malfunction | ||||||||||||
| P0356 | Ignition Coil F (Cyl. 6) Primary Circuit Malfunction | ||||||||||||
| P0400 | Electric EGR (EEGR) System | ||||||||||||
| P0401 | EGR System | ||||||||||||
| P0402 | EGR System | ||||||||||||
| P0403 | Electric EGR (EEGR) System | ||||||||||||
| P0420 | Catalyst Efficiency Monitor (Bank 1) | ||||||||||||
| P0430 | Catalyst Efficiency Monitor (Bank 2) | ||||||||||||
| P0442 | EVAP Monitor | ||||||||||||
| P0443 | EVAP Purge Solenoid | ||||||||||||
| P0451 | EVAP System | ||||||||||||
| P0452 | Fuel Tank Pressure (FTP) Sensor | ||||||||||||
| P0453 | Fuel Tank Pressure (FTP) Sensor | ||||||||||||
| P0455 | EVAP System | ||||||||||||
| P0457 | EVAP System | ||||||||||||
| P0460 | Fuel Level Input | ||||||||||||
| P0461 | EVAP System | ||||||||||||
| P0505 | Idle Air Control (IAC) System | ||||||||||||
| P0603 | PCM Keep Alive Power (KAPWR) Circuit | ||||||||||||
| P0605 | PCM Read Only Memory (ROM) Error | ||||||||||||
| P0703 | Brake Pedal Position (BPP) Switch | ||||||||||||
| P0704 | Clutch Pedal Position (CPP) Switch | ||||||||||||
| P0705 (1) | Transmission Range (TR) Sensor | ||||||||||||
| P0708 (1) | Transmission Range (TR) Sensor | ||||||||||||
| P0712 (1) | Transmission Fluid Temperature (TFT) Sensor | ||||||||||||
| P0713 (1) | Transmission Fluid Temperature (TFT) Sensor | ||||||||||||
| P0715 (1) | Turbine Shaft Speed (TSS) Sensor | ||||||||||||
| P0720 (1) | Output Shaft Speed (OSS) Sensor | ||||||||||||
| P0721 (1) | Output Shaft Speed (OSS) Sensor | ||||||||||||
| P0731 (1) | A/T Solenoid (First Gear Error) | ||||||||||||
| P0732 (1) | A/T Solenoid (Second Gear Error) | ||||||||||||
| P0733 (1) | A/T Solenoid (Third Gear Error) | ||||||||||||
| P0734 (1) | A/T Solenoid (Fourth Gear Error) | ||||||||||||
| P0735 (1) | A/T Solenoid (Fifth Gear Error) | ||||||||||||
| P0750 (1) | Shift Solenoid 1 Circuit | ||||||||||||
| P0751 (1) | Shift Solenoid 1 Failure | ||||||||||||
| P0755 (1) | Shift Solenoid 2 Circuit | ||||||||||||
| P0756 (1) | Shift Solenoid 2 Failure | ||||||||||||
| P0760 (1) | Shift Solenoid 3 Circuit | ||||||||||||
| P0761 (1) | Shift Solenoid 3 Failure | ||||||||||||
| P0765 (1) | Shift Solenoid 4 Circuit | ||||||||||||
| P0791 (1) | Input Shaft Speed Sensor Signal | ||||||||||||
| P0794 (1) | Input Shaft Speed Sensor Signal | ||||||||||||
| P1000 | OBD-II Drive Cycle | ||||||||||||
| P1001 | Data Link Connector (DLC) Or DTC Not Listed | ||||||||||||
| P1100 | Mass Airflow (MAF) Sensor | ||||||||||||
| P1101 | Mass Airflow (MAF) Sensor | ||||||||||||
| P1112 | Intake Air Temperature (IAT) Sensor | ||||||||||||
| P1116 | Engine Coolant Temperature (ECT) Sensor | ||||||||||||
| P1117 | Engine Coolant Temperature (ECT) Sensor | ||||||||||||
| P1120 | Throttle Position (TP) Sensor | ||||||||||||
| P1121 | Throttle Position (TP) Sensor | ||||||||||||
| P1124 | Throttle Position (TP) Sensor | ||||||||||||
| P1125 | Throttle Position (TP) Sensor | ||||||||||||
| P1127 | HO2S-12 (Rear) | ||||||||||||
| P1128 | Front HO2S Signal | ||||||||||||
| P1130 | Fuel Trim Not Switching At Fuel Trim (Rich Or Lean) HO2S-11 (Front Right V6 Or Front 4-Cyl.) | ||||||||||||
| P1131 | Upstream HO2S Not Switching HO2S-11 (Front Right V6 Or Front 4-Cyl.) | ||||||||||||
| P1132 | HO2S-11 (Front Right V6 Or Front 4-Cyl.) | ||||||||||||
| P1137 | HO2S-12 (Rear) | ||||||||||||
| P1138 | HO2S-12 (Rear) | ||||||||||||
| P1150 | Fuel Trim Not Switching At Fuel Trim (Rich Or Lean) HO2S-21 (Front Left) | ||||||||||||
| P1151 | Upstream HO2S Not Switching HO2S-21 (Front Left) | ||||||||||||
| P1152 | HO2S-21 (Front Left) | ||||||||||||
| P1260 | Anti-Theft System | ||||||||||||
| P1270 | Engine RPM/Vehicle Speed Limiter | ||||||||||||
| P1285 | Cylinder Head Temperature (CHT) Sensor | ||||||||||||
| P1288 | Cylinder Head Temperature (CHT) Sensor | ||||||||||||
| P1289 | Cylinder Head Temperature (CHT) Sensor | ||||||||||||
| P1290 | Cylinder Head Temperature (CHT) Sensor | ||||||||||||
| P1299 | Cylinder Head Temperature (CHT) Sensor | ||||||||||||
| P1309 | Misfire Detection Monitor | ||||||||||||
| P1400 | Differential Pressure Feedback EGR (DPFEGR) Sensor | ||||||||||||
| P1401 | Differential Pressure Feedback EGR (DPFEGR) Sensor | ||||||||||||
| P1405 | Differential Pressure Feedback EGR (DPFEGR) Sensor | ||||||||||||
| P1406 | Differential Pressure Feedback EGR (DPFEGR) Sensor | ||||||||||||
| P1408 | EGR System | ||||||||||||
| P1409 | EGR Vacuum Regulator (EVR) Solenoid | ||||||||||||
| P1432 | Thermostat Heater Control (THTRC) (2.3L) | ||||||||||||
| P1443 | EVAP System | ||||||||||||
| P1450 | EVAP System | ||||||||||||
| P1451 | Canister Vent (CV) Solenoid | ||||||||||||
| P1460 | A/C Clutch Relay (ACCR) | ||||||||||||
| P1464 | A/C Control Signal (ACCS) | ||||||||||||
| P1474 | Cooling Fan (2.3L) | ||||||||||||
| P1504 | Idle Air Control (IAC) Solenoid | ||||||||||||
| P1506 | Idle Air Control (IAC) Solenoid | ||||||||||||
| P1507 | Idle Air Control (IAC) Solenoid | ||||||||||||
| P1518 | Intake Manifold Swirl Control (IMSC) (2.3L) | ||||||||||||
| P1519 | Intake Manifold Swirl Control (IMSC) (2.3L) | ||||||||||||
| P1520 | Intake Manifold Swirl Control (IMSC) (2.3L) | ||||||||||||
| P1605 | PCM Keep Alive Power (KAPWR) Circuit | ||||||||||||
| P1633 | PCM Keep Alive Power (KAPWR) Circuit | ||||||||||||
| P1639 | PCM Corrupted Or Not Programmed Correctly | ||||||||||||
| P1650 | Power Steering Pressure (PSP) Switch (2.3L) | ||||||||||||
| P1651 | Power Steering Pressure (PSP) Switch (2.3L) | ||||||||||||
| P1702 (1) | Transmission Range (TR) Sensor | ||||||||||||
| P1703 | Brake Pedal Position (BPP) Switch | ||||||||||||
| P1704 (1) | Transmission Range (TR) Sensor | ||||||||||||
| P1705 (1) | Transmission Range (TR) Sensor | ||||||||||||
| P1709 | Clutch Pedal Position (CPP) Switch | ||||||||||||
| P1711 (1) | Transmission Fluid Temperature (TFT) Sensor | ||||||||||||
| P1714 (1) | Shift Solenoid 1 Malfunction | ||||||||||||
| P1715 (1) | Shift Solenoid 2 Malfunction | ||||||||||||
| P1716 (1) | Shift Solenoid 3 Mechanical Failure | ||||||||||||
| P1717 (1) | Shift Solenoid 4 Malfunction | ||||||||||||
| P1718 (1) | Transmission Fluid Temperature (TFT) Sensor | ||||||||||||
| P1729 | 4x4 Low (4X4L) Switch | ||||||||||||
| P1740 (1) | Torque Converter Clutch (TCC) Solenoid | ||||||||||||
| P1746 (1) | Electronic Pressure Control (EPC) Solenoid | ||||||||||||
| P1747 (1) | Electronic Pressure Control (EPC) Solenoid | ||||||||||||
| P1780 | Transmission Control Switch (TCS) Or Transmission Control Indicator Light (TCIL) Circuit Malfunction | ||||||||||||
| P1781 | 4x4 Low (4X4L) Switch | ||||||||||||
| P1783 (1) | Transmission Over Temperature Condition | ||||||||||||
| P1900 (1) | Turbine Speed Sensor (TSS) | ||||||||||||
| U1020 (2) | Data Circuit - SCP Invalid Or Missing Data For A/C Clutch | ||||||||||||
| U1039 (3) | Data Circuit - SCP Invalid Or Missing Data For Vehicle Speed | ||||||||||||
| U1041 (3) | Data Circuit - SCP Invalid Or Missing Data For Vehicle Speed | ||||||||||||
| U1051 (3) | Data Circuit - SCP Invalid Or Missing Data For Brakes | ||||||||||||
| U1131 (4) | Data Circuit - SCP Invalid Or Missing Data For Fuel System | ||||||||||||
| U1147 (5) | Data Circuit - SCP Invalid Or Missing Data For Vehicle Security | ||||||||||||
| U1451 (5) | Data Circuit - SCP Invalid Or Missing Data For Anti-Theft Module | ||||||||||||
| U1262 (6) | Data Circuit - SCP Communication Bus Fault | ||||||||||||
| U2243 (6) | Data Circuit - SCP Invalid Or Missing Data For Exterior Environment | ||||||||||||
| UXXXX | Data Circuit - "U" DTCs Received During Self-Test Of Another Module | ||||||||||||
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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