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.

Sensors & Electronics 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 697–720 of 2110

Most searched first

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.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.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.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.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.P0812Reverse Input CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0812 relates to reverse input circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0813Reverse Output CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0813 relates to reverse output circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0817Starter Disable Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0817 relates to starter disable circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P0818Driveline Disconnect Switch Input CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0818 relates to driveline disconnect switch input circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P081AStarter Disable Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP081A relates to starter disable circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P081BStarter Disable Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP081B relates to starter disable circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P081CPark Input CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP081C relates to park input circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P081DNeutral Input CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP081D relates to neutral input circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0820Gear Lever X-Y Position Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0820 relates to gear lever x-y position sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0821Gear Lever X Position Sensor 1 CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0821 relates to gear lever x position sensor 1 circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0822Gear Lever Y Position Sensor 1 CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0822 relates to gear lever y position sensor 1 circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0823Gear Lever X Position Sensor 1 Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0823 relates to gear lever x position sensor 1 circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P0824Gear Lever Y Position Sensor 1 Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0824 relates to gear lever y position sensor 1 circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P082AGear Lever X Position Sensor 1 Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP082A relates to gear lever x position sensor 1 circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P082BGear Lever X Position Sensor 1 Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP082B relates to gear lever x position sensor 1 circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.