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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

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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 5977–6000 of 8256

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P2B8AIntake Air O2 Sensor Circuit High Voltage Bank 1Check soonElectrical & Charging System30–120 minutes for initial diagnosisP2B8A relates to intake air o2 sensor circuit high voltage bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B8BIntake Air O2 Sensor Heater Control Circuit/Open Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2B8B relates to intake air o2 sensor heater control circuit/open bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B8CIntake Air O2 Sensor Heater Control Circuit Range/Performance Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2B8C relates to intake air o2 sensor heater control circuit range/performance bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B8DIntake Air O2 Sensor Heater Control Circuit Low Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2B8D relates to intake air o2 sensor heater control circuit low bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B8EIntake Air O2 Sensor Heater Control Circuit High Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2B8E relates to intake air o2 sensor heater control circuit high bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B8FTurbocharger/Supercharger B Temperature Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B8F relates to turbocharger/supercharger b temperature sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B90Turbocharger/Supercharger B Temperature Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B90 relates to turbocharger/supercharger b temperature sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B91Turbocharger/Supercharger B Temperature Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B91 relates to turbocharger/supercharger b temperature sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B92Turbocharger/Supercharger B Temperature Sensor Circuit Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B92 relates to turbocharger/supercharger b temperature sensor circuit circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B93Wastegate Position Sensor A Exceeded Learning LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B93 relates to wastegate position sensor a exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B94Wastegate Position Sensor B Exceeded Learning LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B94 relates to wastegate position sensor b exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B95Cold Start Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B95 relates to cold start injection pulse performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B96Injection Pulse PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2B96 relates to injection pulse performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B97Exhaust Pressure Control Valve A Position Exceeded Learning LimitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B97 relates to exhaust pressure control valve a position exceeded learning limit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B98Exhaust Pressure Control Valve A Supply LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B98 relates to exhaust pressure control valve a supply low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B99Exhaust Pressure Control Valve A Driver Current/Temperature Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B99 relates to exhaust pressure control valve a driver current/temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B9AReductant Quality Sensor Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B9A relates to reductant quality sensor circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B9BVehicle Conditions Incorrect for Particulate Matter Sensor RegenerationCheck soonEmissions System30–120 minutes for initial diagnosisP2B9B relates to vehicle conditions incorrect for particulate matter sensor regeneration. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B9CCoolant Pump A Stuck/StalledCheck soonEngine Problems30–120 minutes for initial diagnosisP2B9C relates to coolant pump a stuck/stalled. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B9DCoolant Pump A Supply Voltage CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2B9D relates to coolant pump a supply voltage circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B9ECoolant Pump A Control Module OvertemperatureCheck soonEngine Problems30–120 minutes for initial diagnosisP2B9E relates to coolant pump a control module overtemperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B9FCoolant Pump B UnderspeedCheck soonEngine Problems30–120 minutes for initial diagnosisP2B9F relates to coolant pump b underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2BA0Coolant Pump C UnderspeedCheck soonEngine Problems30–120 minutes for initial diagnosisP2BA0 relates to coolant pump c underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2BA1Coolant Pump D UnderspeedCheck soonEngine Problems30–120 minutes for initial diagnosisP2BA1 relates to coolant pump d underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.