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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

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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 2161–2184 of 7353

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P0945Hydraulic Pump Relay/Control Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0945 relates to hydraulic pump relay/control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P0946Hydraulic Pump Relay/Control Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0946 relates to hydraulic pump relay/control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0947Hydraulic Pump Relay/Control Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0947 relates to hydraulic pump relay/control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0948Hydraulic Pump Relay/Control Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0948 relates to hydraulic pump relay/control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0949Auto Shift Manual Adaptive Learning Not CompleteCheck soonTransmission Issues30–120 minutes for initial diagnosisP0949 relates to auto shift manual adaptive learning not complete. Check the fault conditions and vehicle-specific procedure before replacing parts.P094AHydraulic Pump Driver PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP094A relates to hydraulic pump driver performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P094BHydraulic Pump Stuck OnCheck soonSensors & Electronics30–120 minutes for initial diagnosisP094B relates to hydraulic pump stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P094CHydraulic Pump Performance/Stuck OffCheck soonSensors & Electronics30–120 minutes for initial diagnosisP094C relates to hydraulic pump performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P094DHydraulic Pump Over TemperatureUrgentSensors & Electronics30–120 minutes for initial diagnosisP094D relates to hydraulic pump over temperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P094EHydraulic Pump Supply Voltage Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP094E relates to hydraulic pump supply voltage circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P0950Auto Shift Manual Control CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0950 relates to auto shift manual control circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0951Auto Shift Manual Control Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP0951 relates to auto shift manual control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0952Auto Shift Manual Control Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0952 relates to auto shift manual control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0953Auto Shift Manual Control Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0953 relates to auto shift manual control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0954Auto Shift Manual Control Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP0954 relates to auto shift manual control circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P0955Auto Shift Manual Mode CircuitCheck soonTransmission Issues30–120 minutes for initial diagnosisP0955 relates to auto shift manual mode circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P0956Auto Shift Manual Mode Circuit Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP0956 relates to auto shift manual mode circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0957Auto Shift Manual Mode Circuit LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP0957 relates to auto shift manual mode circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0958Auto Shift Manual Mode Circuit HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP0958 relates to auto shift manual mode circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0959Auto Shift Manual Mode Circuit IntermittentCheck soonTransmission Issues30–120 minutes for initial diagnosisP0959 relates to auto shift manual mode circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P095AGear Shift Position Circuit CCheck soonTransmission Issues30–120 minutes for initial diagnosisP095A relates to gear shift position circuit c. Check the fault conditions and vehicle-specific procedure before replacing parts.P095BGear Shift Position Circuit C Range/PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP095B relates to gear shift position circuit c range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P095CGear Shift Position Circuit C LowCheck soonTransmission Issues30–120 minutes for initial diagnosisP095C relates to gear shift position circuit c low. Check the fault conditions and vehicle-specific procedure before replacing parts.P095DGear Shift Position Circuit C HighCheck soonTransmission Issues30–120 minutes for initial diagnosisP095D relates to gear shift position circuit c high. Check the fault conditions and vehicle-specific procedure before replacing parts.