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9,253 diagnostic guides

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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.

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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

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

Diagnostic codes

Showing 2617–2640 of 9253

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P0866TCM Communication Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0866 relates to tcm communication circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0867Transmission Fluid PressureCheck soonTransmission Issues30–120 minutes for initial diagnosisP0867 relates to transmission fluid pressure. Check the fault conditions and vehicle-specific procedure before replacing parts.P0868Transmission Fluid Pressure LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0868 relates to transmission fluid pressure low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0869Transmission Fluid Pressure HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0869 relates to transmission fluid pressure high. Check the fault conditions and vehicle-specific procedure before replacing parts.P086ANeutral Position Sensor A Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP086A relates to neutral position sensor a circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P086BNeutral Position Sensor A Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP086B relates to neutral position sensor a range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P086CNeutral Position Sensor A Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP086C relates to neutral position sensor a circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P086DNeutral Position Sensor A Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP086D relates to neutral position sensor a circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P086ENeutral Position Sensor A Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP086E relates to neutral position sensor a circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P086FNeutral Position Sensor A Not LearnedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP086F relates to neutral position sensor a not learned. Check the fault conditions and vehicle-specific procedure before replacing parts.P0871Transmission Fluid Pressure Sensor/Switch C Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP0871 relates to transmission fluid pressure sensor/switch c circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0872Transmission Fluid Pressure Sensor/Switch C Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0872 relates to transmission fluid pressure sensor/switch c circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0873Transmission Fluid Pressure Sensor/Switch C Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0873 relates to transmission fluid pressure sensor/switch c circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0874Transmission Fluid Pressure Sensor/Switch C Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP0874 relates to transmission fluid pressure sensor/switch c circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P0875Transmission Fluid Pressure Sensor/Switch D CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0875 relates to transmission fluid pressure sensor/switch d circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0876Transmission Fluid Pressure Sensor/Switch D Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP0876 relates to transmission fluid pressure sensor/switch d circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0877Transmission Fluid Pressure Sensor/Switch D Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0877 relates to transmission fluid pressure sensor/switch d circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0878Transmission Fluid Pressure Sensor/Switch D Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0878 relates to transmission fluid pressure sensor/switch d circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0879Transmission Fluid Pressure Sensor/Switch D Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP0879 relates to transmission fluid pressure sensor/switch d circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P087AClutch Position Sensor B CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP087A relates to clutch position sensor b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P087BClutch Position Sensor B Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP087B relates to clutch position sensor b circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P087CClutch Position Sensor B Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP087C relates to clutch position sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P087DClutch Position Sensor B Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP087D relates to clutch position sensor b circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P087EClutch Position Sensor B Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP087E relates to clutch position sensor b circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.