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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 6913–6936 of 7353

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P2E55Exhaust Pressure Sensor C Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E55 relates to exhaust pressure sensor c circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E56Exhaust Pressure Sensor C Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E56 relates to exhaust pressure sensor c circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E57Exhaust Pressure Sensor C Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2E57 relates to exhaust pressure sensor c circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E58Alternative Fuel Random/Multiple Cylinder Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E58 relates to alternative fuel random/multiple cylinder misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E59Cylinder 1 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E59 relates to cylinder 1 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E5ACylinder 2 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E5A relates to cylinder 2 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E5BCylinder 3 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E5B relates to cylinder 3 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E5CCylinder 4 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E5C relates to cylinder 4 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E5DCylinder 5 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E5D relates to cylinder 5 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E5ECylinder 6 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E5E relates to cylinder 6 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E5FCylinder 7 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E5F relates to cylinder 7 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E60Cylinder 8 Alternative Fuel Misfire DetectedCheck soonFuel System30–120 minutes for initial diagnosisP2E60 relates to cylinder 8 alternative fuel misfire detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E61Alternative Fuel Misfire Detected With Low FuelCheck soonFuel System30–120 minutes for initial diagnosisP2E61 relates to alternative fuel misfire detected with low fuel. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E62Engine Coolant Bypass Valve E Control Circuit/OpenCheck soonEngine Problems30–120 minutes for initial diagnosisP2E62 relates to engine coolant bypass valve e control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E63Engine Coolant Bypass Valve E Control Circuit LowCheck soonEngine Problems30–120 minutes for initial diagnosisP2E63 relates to engine coolant bypass valve e control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E64Engine Coolant Bypass Valve E Control Circuit HighCheck soonEngine Problems30–120 minutes for initial diagnosisP2E64 relates to engine coolant bypass valve e control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E65Engine Coolant Bypass Valve E Stuck/OpenCheck soonEngine Problems30–120 minutes for initial diagnosisP2E65 relates to engine coolant bypass valve e stuck/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E66Engine Coolant Bypass Valve E Range/PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP2E66 relates to engine coolant bypass valve e range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E67Engine Coolant Bypass Valve E Stuck ClosedCheck soonEngine Problems30–120 minutes for initial diagnosisP2E67 relates to engine coolant bypass valve e stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E68System Too Lean During Cylinder Deactivation Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP2E68 relates to system too lean during cylinder deactivation bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E69System Too Rich During Cylinder Deactivation Bank 1Check soonEngine Problems30–120 minutes for initial diagnosisP2E69 relates to system too rich during cylinder deactivation bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E6ASystem Too Lean During Cylinder Deactivation Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP2E6A relates to system too lean during cylinder deactivation bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E6BSystem Too Rich During Cylinder Deactivation Bank 2Check soonEngine Problems30–120 minutes for initial diagnosisP2E6B relates to system too rich during cylinder deactivation bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2E6CHybrid/EV Battery Pack “A” Cell ThicknessCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2E6C relates to hybrid/ev battery pack “a” cell thickness. Check the fault conditions and vehicle-specific procedure before replacing parts.