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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.

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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

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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 6457–6480 of 8256

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P2D88Fan 1 Control Module PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2D88 relates to fan 1 control module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D89Fan 1 Control Module Supply Voltage CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D89 relates to fan 1 control module supply voltage circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D8BFan 2 Control Module PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2D8B relates to fan 2 control module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D8CFan 2 Control Module Supply Voltage CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D8C relates to fan 2 control module supply voltage circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D8DEngine Disconnect Clutch Mechanical PerformanceCheck soonTransmission Issues30–120 minutes for initial diagnosisP2D8D relates to engine disconnect clutch mechanical performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D8EEngine Oil Pressure Sensor/Switch C CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP2D8E relates to engine oil pressure sensor/switch c circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D8FEngine Oil Pressure Sensor/Switch C Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2D8F relates to engine oil pressure sensor/switch c circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D90Engine Oil Pressure Sensor/Switch C Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2D90 relates to engine oil pressure sensor/switch c circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D91Engine Oil Pressure Sensor/Switch C Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2D91 relates to engine oil pressure sensor/switch c circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D92Starter/Generator Phase X Current Sensor Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D92 relates to starter/generator phase x current sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D93Starter/Generator Phase Y Current Sensor Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D93 relates to starter/generator phase y current sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D94Starter/Generator Phase Z Current Sensor Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D94 relates to starter/generator phase z current sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D95Starter/Generator Phase X Current Sensor Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D95 relates to starter/generator phase x current sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D96Starter/Generator Phase Y Current Sensor Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D96 relates to starter/generator phase y current sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D97Starter/Generator Phase Z Current Sensor Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D97 relates to starter/generator phase z current sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D98Starter/Generator Phase X Current Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D98 relates to starter/generator phase x current circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.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.