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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 5953–5976 of 8256

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P2B6ACoolant Pump D Stuck/StalledCheck soonEngine Problems30–120 minutes for initial diagnosisP2B6A relates to coolant pump d stuck/stalled. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B6BCoolant Pump D Control Module OvertemperatureCheck soonEngine Problems30–120 minutes for initial diagnosisP2B6B relates to coolant pump d control module overtemperature. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B6DEngine Coolant Flow Control Valve Position Sensor Circuit Intermittent/ErraticCheck soonEngine Problems30–120 minutes for initial diagnosisP2B6D relates to engine coolant flow control valve position sensor circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B6ETurbocharger/Supercharger A Temperature Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B6E relates to turbocharger/supercharger a temperature sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B6FTurbocharger/Supercharger A Temperature Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B6F relates to turbocharger/supercharger a temperature sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B70Turbocharger/Supercharger A Temperature Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B70 relates to turbocharger/supercharger a temperature sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B71Turbocharger/Supercharger A Temperature Sensor Circuit Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B71 relates to turbocharger/supercharger a temperature sensor circuit circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B72Coolant Heater A Control Circuit/OpenCheck soonEngine Problems30–120 minutes for initial diagnosisP2B72 relates to coolant heater a control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B73Coolant Heater A Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2B73 relates to coolant heater a control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B74Coolant Heater A Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2B74 relates to coolant heater a control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B75Coolant Heater A Control Circuit PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2B75 relates to coolant heater a control circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B76Coolant Heater B Control Circuit/OpenCheck soonEngine Problems30–120 minutes for initial diagnosisP2B76 relates to coolant heater b control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B77Coolant Heater B Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2B77 relates to coolant heater b control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B78Coolant Heater B Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2B78 relates to coolant heater b control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B79Coolant Heater B Control Circuit PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2B79 relates to coolant heater b control circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B7FTurbocharger/Supercharger Boost Control Module A Calibration Not Learned/ProgrammedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B7F relates to turbocharger/supercharger boost control module a calibration not learned/programmed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B80Turbocharger/Supercharger Boost Control Module B Calibration Not Learned/ProgrammedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B80 relates to turbocharger/supercharger boost control module b calibration not learned/programmed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B81Wastegate Position Sensor A Circuit PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B81 relates to wastegate position sensor a circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B82Wastegate Position Sensor B Circuit PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2B82 relates to wastegate position sensor b circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B84Charge Air Cooler Coolant Pump A UnderspeedCheck soonEngine Problems30–120 minutes for initial diagnosisP2B84 relates to charge air cooler coolant pump a underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B85Engine Coolant Pump UnderspeedCheck soonEngine Problems30–120 minutes for initial diagnosisP2B85 relates to engine coolant pump underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B87Coolant Pump A UnderspeedCheck soonEngine Problems30–120 minutes for initial diagnosisP2B87 relates to coolant pump a underspeed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B88Intake Air O2 Sensor Circuit Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2B88 relates to intake air o2 sensor circuit bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2B89Intake Air O2 Sensor Circuit Low Voltage Bank 1Check soonElectrical & Charging System30–120 minutes for initial diagnosisP2B89 relates to intake air o2 sensor circuit low voltage bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.