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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.

Engine Problems P · Powertrain Clear all

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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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Diagnostic codes

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P23EACamshaft A Position Signal Output Circuit Low Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP23EA relates to camshaft a position signal output circuit low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P23EBCamshaft A Position Signal Output Circuit High Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP23EB relates to camshaft a position signal output circuit high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P23ECCamshaft B Position Signal Output Circuit/Open Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP23EC relates to camshaft b position signal output circuit/open bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P23EDCamshaft B Position Signal Output Circuit Low Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP23ED relates to camshaft b position signal output circuit low bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P23EECamshaft B Position Signal Output Circuit High Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP23EE relates to camshaft b position signal output circuit high bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P23EFCamshaft B Position Signal Output Circuit/Open Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP23EF relates to camshaft b position signal output circuit/open bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P23F0Camshaft B Position Signal Output Circuit Low Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP23F0 relates to camshaft b position signal output circuit low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P23F1Camshaft B Position Signal Output Circuit High Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP23F1 relates to camshaft b position signal output circuit high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P241EReductant Heater Coolant Control Valve Stuck ClosedCheck soonEngine Problems30–120 minutes for initial diagnosisP241E relates to reductant heater coolant control valve stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2556Engine Coolant Level Sensor/Switch CircuitCheck soonEngine Problems30–120 minutes for initial diagnosisP2556 relates to engine coolant level sensor/switch circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2557Engine Coolant Level Sensor/Switch Circuit Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2557 relates to engine coolant level sensor/switch circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2558Engine Coolant Level Sensor/Switch Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2558 relates to engine coolant level sensor/switch circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2559Engine Coolant Level Sensor/Switch Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2559 relates to engine coolant level sensor/switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2560Engine Coolant Level LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2560 relates to engine coolant level low. Check the fault conditions and vehicle-specific procedure before replacing parts.P25AEPiston Cooling Oil Pressure Too LowUrgentEngine Problems30–120 minutes for initial diagnosisP25AE relates to piston cooling oil pressure too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P25AFCoolant Temperature Control Module Requested MIL IlluminationCheck soonEngine Problems30–120 minutes for initial diagnosisP25AF relates to coolant temperature control module requested mil illumination. Check the fault conditions and vehicle-specific procedure before replacing parts.P25CAIntake Camshaft Actuator Park Lock Control Circuit/Open Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25CA relates to intake camshaft actuator park lock control circuit/open bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25CBIntake Camshaft Actuator Park Lock Control Circuit Low Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25CB relates to intake camshaft actuator park lock control circuit low bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P25CCIntake Camshaft Actuator Park Lock Control Circuit High Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP25CC relates to intake camshaft actuator park lock control circuit high bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.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.