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 1849–1872 of 7353

Most searched first

P07EETransmission Range Multi-Function Select Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP07EE relates to transmission range multi-function select circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P07EFTransmission Range Multi-Function Select Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP07EF relates to transmission range multi-function select circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F0Transmission Range Multi-Function Select Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP07F0 relates to transmission range multi-function select circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F1Input/Turbine Shaft Speed Sensor C CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP07F1 relates to input/turbine shaft speed sensor c circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F2Transmission Range Control Module Communication CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP07F2 relates to transmission range control module communication circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F3Transmission Range Control Module Communication Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP07F3 relates to transmission range control module communication circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F4Transmission Range Control Module Communication Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP07F4 relates to transmission range control module communication circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F5Transmission Range Control Module System Voltage LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP07F5 relates to transmission range control module system voltage low. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F6Gear 9 Incorrect RatioCheck soonSensors & Electronics30–120 minutes for initial diagnosisP07F6 relates to gear 9 incorrect ratio. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F7Gear 10 Incorrect RatioCheck soonSensors & Electronics30–120 minutes for initial diagnosisP07F7 relates to gear 10 incorrect ratio. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F8Stuck in Gear 9Check soonSensors & Electronics30–120 minutes for initial diagnosisP07F8 relates to stuck in gear 9. Check the fault conditions and vehicle-specific procedure before replacing parts.P07F9Unable to Engage Gear 9Check soonSensors & Electronics30–120 minutes for initial diagnosisP07F9 relates to unable to engage gear 9. Check the fault conditions and vehicle-specific procedure before replacing parts.P07FAIncorrect Shift From Gear 9Check soonTransmission Issues30–120 minutes for initial diagnosisP07FA relates to incorrect shift from gear 9. Check the fault conditions and vehicle-specific procedure before replacing parts.P07FBStuck in Gear 10Check soonSensors & Electronics30–120 minutes for initial diagnosisP07FB relates to stuck in gear 10. Check the fault conditions and vehicle-specific procedure before replacing parts.P07FCUnable to Engage Gear 10Check soonSensors & Electronics30–120 minutes for initial diagnosisP07FC relates to unable to engage gear 10. Check the fault conditions and vehicle-specific procedure before replacing parts.P07FDIncorrect Shift From Gear 10Check soonTransmission Issues30–120 minutes for initial diagnosisP07FD relates to incorrect shift from gear 10. Check the fault conditions and vehicle-specific procedure before replacing parts.P07FEStuck In Gear - Not SpecifiedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP07FE relates to stuck in gear - not specified. Check the fault conditions and vehicle-specific procedure before replacing parts.P07FFCold Start Transmission PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP07FF relates to cold start transmission performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0800Transfer Case Control System (MIL Request)Check soonTransmission Issues30–120 minutes for initial diagnosisP0800 relates to transfer case control system (mil request). Check the fault conditions and vehicle-specific procedure before replacing parts.P0801Reverse Inhibit Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0801 relates to reverse inhibit control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P0802Transmission Control System MIL Request Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP0802 relates to transmission control system mil request circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P0803Upshift/Skip Shift Solenoid Control CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0803 relates to upshift/skip shift solenoid control circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0804Upshift/Skip Shift Lamp Control CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0804 relates to upshift/skip shift lamp control circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0805Clutch Position Sensor A CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0805 relates to clutch position sensor a circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.