Diagnostic library

Find an OBD2 code

Search the code from your scanner, then narrow the library by system, severity, or code family.

9,253 diagnostic guides

Sort

Find codes by symptomChoose what you notice to search matching code guides.

Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

P · Powertrain Clear all

Quick browse

Choose a vehicle system

Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

FiltersSeverity · family

Severity

All severities9253 Low priority305 Check soon8256 Urgent621

Code family

All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

Vehicle coverage

These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 6817–6840 of 7353

Most searched first

P2DF3Engine Disconnect Clutch Actuator Position Not LearnedCheck soonTransmission Issues30–120 minutes for initial diagnosisP2DF3 relates to engine disconnect clutch actuator position not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DF4Coolant Pump E Control Circuit/OpenCheck soonEngine Problems30–120 minutes for initial diagnosisP2DF4 relates to coolant pump e control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DF5Coolant Pump E Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2DF5 relates to coolant pump e control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DF6Coolant Pump E Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2DF6 relates to coolant pump e control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DF7Coolant Pump E Overspeed/Air in SystemUrgentEngine Problems30–120 minutes for initial diagnosisP2DF7 relates to coolant pump e overspeed/air in system. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DF8Coolant Pump E UnderspeedCheck soonEngine Problems30–120 minutes for initial diagnosisP2DF8 relates to coolant pump e underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DF9Coolant Pump E Stuck/StalledCheck soonEngine Problems30–120 minutes for initial diagnosisP2DF9 relates to coolant pump e stuck/stalled. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DFACoolant Pump E Supply Voltage CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DFA relates to coolant pump e supply voltage circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DFBCoolant Pump E Control Module OvertemperatureCheck soonEngine Problems30–120 minutes for initial diagnosisP2DFB relates to coolant pump e control module overtemperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DFCHybrid/EV Battery Coolant Leak DetectedCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DFC relates to hybrid/ev battery coolant leak detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DFDEVAP System Purge Pump PerformanceLow priorityEmissions System30–120 minutes for initial diagnosisP2DFD relates to evap system purge pump performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E00Gear Lever Position Sensor A CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E00 relates to gear lever position sensor a circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E01Gear Lever Position Sensor A Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E01 relates to gear lever position sensor a range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E02Gear Lever Position Sensor A Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E02 relates to gear lever position sensor a circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E03Gear Lever Position Sensor A Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E03 relates to gear lever position sensor a circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E04Gear Lever Position Sensor B CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E04 relates to gear lever position sensor b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E05Gear Lever Position Sensor B Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E05 relates to gear lever position sensor b range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E06Gear Lever Position Sensor B Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E06 relates to gear lever position sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E07Gear Lever Position Sensor B Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E07 relates to gear lever position sensor b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E08Gear Lever Position Sensor C CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E08 relates to gear lever position sensor c circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E09Gear Lever Position Sensor C Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E09 relates to gear lever position sensor c range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E0AGear Lever Position Sensor C Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E0A relates to gear lever position sensor c circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E0BGear Lever Position Sensor C Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E0B relates to gear lever position sensor c circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E0CGear Lever Position Sensor D CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E0C relates to gear lever position sensor d circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.