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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 4825–4848 of 8256

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P25CDIntake Camshaft Actuator Park Lock Control Circuit/Open Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25CD relates to intake camshaft actuator park lock control circuit/open bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25CEIntake Camshaft Actuator Park Lock Control Circuit Low Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25CE relates to intake camshaft actuator park lock control circuit low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25CFIntake Camshaft Actuator Park Lock Control Circuit High Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25CF relates to intake camshaft actuator park lock control circuit high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25D0Exhaust Camshaft Actuator Park Lock Control Circuit/Open Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25D0 relates to exhaust camshaft actuator park lock control circuit/open bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25D1Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25D1 relates to exhaust camshaft actuator park lock control circuit low bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25D2Exhaust Camshaft Actuator Park Lock Control Circuit High Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25D2 relates to exhaust camshaft actuator park lock control circuit high bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25D3Exhaust Camshaft Actuator Park Lock Control Circuit/Open Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25D3 relates to exhaust camshaft actuator park lock control circuit/open bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25D4Exhaust Camshaft Actuator Park Lock Control Circuit Low Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25D4 relates to exhaust camshaft actuator park lock control circuit low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25D5Exhaust Camshaft Actuator Park Lock Control Circuit High Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25D5 relates to exhaust camshaft actuator park lock control circuit high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25D6Exhaust Heat Exchanger Exhaust Bypass Valve A Position Sensor Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP25D6 relates to exhaust heat exchanger exhaust bypass valve a position sensor stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P25DDA Camshaft Position - Stuck In Locked Position Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25DD relates to a camshaft position - stuck in locked position bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25DEA Camshaft Position - Unable to Achieve Locked Position Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25DE relates to a camshaft position - unable to achieve locked position bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25DFA Camshaft Position Control Performance Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25DF relates to a camshaft position control performance bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E0A Camshaft Position - Stuck In Locked Position Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25E0 relates to a camshaft position - stuck in locked position bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E1A Camshaft Position - Unable to Achieve Locked Position Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25E1 relates to a camshaft position - unable to achieve locked position bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E2A Camshaft Position Control Performance Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25E2 relates to a camshaft position control performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E3B Camshaft Position - Stuck In Locked Position Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25E3 relates to b camshaft position - stuck in locked position bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E4B Camshaft Position - Unable to Achieve Locked Position Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25E4 relates to b camshaft position - unable to achieve locked position bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E5B Camshaft Position Control Performance Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25E5 relates to b camshaft position control performance bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E6B Camshaft Position - Stuck In Locked Position Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25E6 relates to b camshaft position - stuck in locked position bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E7B Camshaft Position - Unable to Achieve Locked Position Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25E7 relates to b camshaft position - unable to achieve locked position bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E8B Camshaft Position Control Performance Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP25E8 relates to b camshaft position control performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P25E9Supercharger Disconnect Clutch Stuck OpenCheck soonTransmission Issues30–120 minutes for initial diagnosisP25E9 relates to supercharger disconnect clutch stuck open. Check the fault conditions and vehicle-specific procedure before replacing parts.P25EASupercharger Disconnect Clutch Stuck ClosedCheck soonTransmission Issues30–120 minutes for initial diagnosisP25EA relates to supercharger disconnect clutch stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.