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.

Transmission Issues 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 265–288 of 866

Most searched first

P08B8Clutch Pedal Position Sensor B Circuit Intermittent/ErraticCheck soonTransmission Issues30–120 minutes for initial diagnosisP08B8 relates to clutch pedal position sensor b circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P08B9Clutch Pedal Position Sensor A/B CorrelationCheck soonTransmission Issues30–120 minutes for initial diagnosisP08B9 relates to clutch pedal position sensor a/b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P08BAPressure Control Solenoid LCheck soonTransmission Issues30–120 minutes for initial diagnosisP08BA relates to pressure control solenoid l. Check the fault conditions and vehicle-specific procedure before replacing parts.P08BBPressure Control Solenoid L Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP08BB relates to pressure control solenoid l performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P08BCPressure Control Solenoid L Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP08BC relates to pressure control solenoid l stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P08BDPressure Control Solenoid L ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP08BD relates to pressure control solenoid l electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.P08BEPressure Control Solenoid L IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP08BE relates to pressure control solenoid l intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P08BFPressure Control Solenoid L Control Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP08BF relates to pressure control solenoid l control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C0Pressure Control Solenoid L Control Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C0 relates to pressure control solenoid l control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C1Pressure Control Solenoid L Control Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C1 relates to pressure control solenoid l control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C2Pressure Control Solenoid L Control Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C2 relates to pressure control solenoid l control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C3Pressure Control Solenoid MCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C3 relates to pressure control solenoid m. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C4Pressure Control Solenoid M Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C4 relates to pressure control solenoid m performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C5Pressure Control Solenoid M Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C5 relates to pressure control solenoid m stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C6Pressure Control Solenoid M ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C6 relates to pressure control solenoid m electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C7Pressure Control Solenoid M IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C7 relates to pressure control solenoid m intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C8Pressure Control Solenoid M Control Circuit/OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C8 relates to pressure control solenoid m control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P08C9Pressure Control Solenoid M Control Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP08C9 relates to pressure control solenoid m control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P08CAPressure Control Solenoid M Control Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP08CA relates to pressure control solenoid m control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P08CBPressure Control Solenoid M Control Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP08CB relates to pressure control solenoid m control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P08CCShift Solenoid JCheck soonTransmission Issues30–120 minutes for initial diagnosisP08CC relates to shift solenoid j. Check the fault conditions and vehicle-specific procedure before replacing parts.P08CDShift Solenoid J Performance/Stuck OffCheck soonTransmission Issues30–120 minutes for initial diagnosisP08CD relates to shift solenoid j performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P08CEShift Solenoid J Stuck OnCheck soonTransmission Issues30–120 minutes for initial diagnosisP08CE relates to shift solenoid j stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P08CFShift Solenoid J ElectricalCheck soonTransmission Issues30–120 minutes for initial diagnosisP08CF relates to shift solenoid j electrical. Check the fault conditions and vehicle-specific procedure before replacing parts.