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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.

Electrical & Charging System Clear all

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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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 25–48 of 1797

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P058ABattery Monitor Module PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP058A relates to battery monitor module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P058BBattery Monitor Module Current Monitoring PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP058B relates to battery monitor module current monitoring performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P058CBattery Monitor Module Temperature Monitoring PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP058C relates to battery monitor module temperature monitoring performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P058DBattery Monitor Module Voltage Monitoring PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP058D relates to battery monitor module voltage monitoring performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P058EBattery Monitor Module Temperature Too HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP058E relates to battery monitor module temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P058FBattery Monitor Module Temperature Too LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP058F relates to battery monitor module temperature too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05A6Active Grille Air Shutter A Supply Voltage Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05A6 relates to active grille air shutter a supply voltage circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P05A7Active Grille Air Shutter A Supply Voltage Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05A7 relates to active grille air shutter a supply voltage circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05A8Active Grille Air Shutter A Supply Voltage Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05A8 relates to active grille air shutter a supply voltage circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05B5Active Grille Air Shutter B Supply Voltage Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05B5 relates to active grille air shutter b supply voltage circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P05B6Active Grille Air Shutter B Supply Voltage Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05B6 relates to active grille air shutter b supply voltage circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05B7Active Grille Air Shutter B Supply Voltage Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05B7 relates to active grille air shutter b supply voltage circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05EDReductant Heater Control Module Supply VoltageCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05ED relates to reductant heater control module supply voltage. Check the fault conditions and vehicle-specific procedure before replacing parts.P05EEReductant Pump Supply Voltage Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05EE relates to reductant pump supply voltage circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P05EFReductant Pump Supply Voltage Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05EF relates to reductant pump supply voltage circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05F0Reductant Pump Supply Voltage Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05F0 relates to reductant pump supply voltage circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05F1Reductant Pump Supply Voltage Circuit Stuck OnCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05F1 relates to reductant pump supply voltage circuit stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P05F2Reductant Pump Supply Voltage Circuit Stuck OffCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05F2 relates to reductant pump supply voltage circuit stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P05F3Exhaust Aftertreatment Power Relay Control Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05F3 relates to exhaust aftertreatment power relay control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P05F4Exhaust Aftertreatment Power Relay Control Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05F4 relates to exhaust aftertreatment power relay control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P05F5Exhaust Aftertreatment Power Relay Control Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05F5 relates to exhaust aftertreatment power relay control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P05F6Exhaust Aftertreatment Power Relay Control Circuit Stuck OnCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05F6 relates to exhaust aftertreatment power relay control circuit stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P05F7Exhaust Aftertreatment Power Relay Control Circuit Stuck OffCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP05F7 relates to exhaust aftertreatment power relay control circuit stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P0600Serial Communication Link MalfunctionCheck soonElectrical & Charging System45–120 minutes for initial diagnosisP0600 means Serial Communication Link Malfunction. Learn the likely symptoms, common causes, and a safe diagnostic order before replacing parts.