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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.

Engine Problems P · Powertrain Clear all

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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

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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 289–312 of 1049

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P055CEngine Oil Pressure Sensor/Switch B LowCheck soonEngine Problems30–120 minutes for initial diagnosisP055C relates to engine oil pressure sensor/switch b low. Check the fault conditions and vehicle-specific procedure before replacing parts.P055DEngine Oil Pressure Sensor/Switch B HighCheck soonEngine Problems30–120 minutes for initial diagnosisP055D relates to engine oil pressure sensor/switch b high. Check the fault conditions and vehicle-specific procedure before replacing parts.P055FEngine Oil Pressure Out of RangeCheck soonEngine Problems30–120 minutes for initial diagnosisP055F relates to engine oil pressure out of range. Check the fault conditions and vehicle-specific procedure before replacing parts.P0597Thermostat Heater Control Circuit/OpenCheck soonEngine Problems30–120 minutes for initial diagnosisP0597 relates to thermostat heater control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P0598Thermostat Heater Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP0598 relates to thermostat heater control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0599Thermostat Heater Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP0599 relates to thermostat heater control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05C2Engine Coolant Pressure Sensor CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP05C2 relates to engine coolant pressure sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P05C3Engine Coolant Pressure Sensor Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP05C3 relates to engine coolant pressure sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P05C4Engine Coolant Pressure Sensor Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP05C4 relates to engine coolant pressure sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05C5Engine Coolant Pressure Sensor Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP05C5 relates to engine coolant pressure sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05C6Engine Coolant Pressure Sensor Circuit Intermittent/ErraticCheck soonEngine Problems30–120 minutes for initial diagnosisP05C6 relates to engine coolant pressure sensor circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P05CCCold Start A Camshaft Position Timing Performance Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP05CC relates to cold start a camshaft position timing performance bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P05CDCold Start A Camshaft Position Timing Performance Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP05CD relates to cold start a camshaft position timing performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P05CECold Start B Camshaft Position Timing Performance Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP05CE relates to cold start b camshaft position timing performance bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P05CFCold Start B Camshaft Position Timing Performance Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP05CF relates to cold start b camshaft position timing performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P060FInternal Control Module Coolant Temperature PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP060F relates to internal control module coolant temperature performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P063FAuto Configuration Engine Coolant Temperature Input Not PresentCheck soonEngine Problems30–120 minutes for initial diagnosisP063F relates to auto configuration engine coolant temperature input not present. Check the fault conditions and vehicle-specific procedure before replacing parts.P066ACylinder 1 Glow Plug Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP066A relates to cylinder 1 glow plug control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P066BCylinder 1 Glow Plug Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP066B relates to cylinder 1 glow plug control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P066CCylinder 2 Glow Plug Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP066C relates to cylinder 2 glow plug control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P066DCylinder 2 Glow Plug Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP066D relates to cylinder 2 glow plug control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P066ECylinder 3 Glow Plug Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP066E relates to cylinder 3 glow plug control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P066FCylinder 3 Glow Plug Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP066F relates to cylinder 3 glow plug control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0671Cylinder 1 Glow Plug Circuit/OpenCheck soonEngine Problems30–120 minutes for initial diagnosisP0671 relates to cylinder 1 glow plug circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.