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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 1465–1488 of 1570

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P2D99Starter/Generator Phase Y Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D99 relates to starter/generator phase y current circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D9AStarter/Generator Phase Z Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9A relates to starter/generator phase z current circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D9BStarter/Generator Phase U Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9B relates to starter/generator phase u current circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D9CStarter/Generator Phase V Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9C relates to starter/generator phase v current circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D9DStarter/Generator Phase W Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9D relates to starter/generator phase w current circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D9EHigh Voltage System Voltage LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9E relates to high voltage system voltage low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D9FHigh Voltage System Voltage HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D9F relates to high voltage system voltage high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DA0High Voltage System PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DA0 relates to high voltage system performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DA5Coolant Heater A Supply Voltage CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DA5 relates to coolant heater a supply voltage circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DA7Coolant Heater A Control Module System VoltageCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DA7 relates to coolant heater a control module system voltage. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DB6Battery Charger B Cooling System PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DB6 relates to battery charger b cooling system performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DB7Battery Charging System B High Voltage Interlock Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DB7 relates to battery charging system b high voltage interlock circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DB8Battery Charging System B High Voltage Interlock Circuit PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DB8 relates to battery charging system b high voltage interlock circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DB9Battery Charging System B High Voltage Interlock Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DB9 relates to battery charging system b high voltage interlock circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DBABattery Charging System B High Voltage Interlock Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DBA relates to battery charging system b high voltage interlock circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DBBBattery Charging System B High Voltage Interlock Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DBB relates to battery charging system b high voltage interlock circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DBCBattery Charger B Coupler Lock Position Sensor CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DBC relates to battery charger b coupler lock position sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DBDBattery Charger B Coupler Lock Position Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DBD relates to battery charger b coupler lock position sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DBEBattery Charger B Coupler Lock Position Sensor Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DBE relates to battery charger b coupler lock position sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DBFBattery Charger B Coupler Lock Position Sensor Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DBF relates to battery charger b coupler lock position sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DC0Battery Charger B Coupler Lock Position Sensor Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DC0 relates to battery charger b coupler lock position sensor circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DC1Starter/Generator Phase X Current Sensor CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DC1 relates to starter/generator phase x current sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DC2Starter/Generator Phase X Current Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DC2 relates to starter/generator phase x current sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2DC3Starter/Generator Phase Y Current Sensor CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2DC3 relates to starter/generator phase y current sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.