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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.

Check soon 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

Showing 4081–4104 of 6682

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P23FCCylinder 11 Injector B Air-Fuel Ratio ImbalanceCheck soonFuel System30–120 minutes for initial diagnosisP23FC relates to cylinder 11 injector b air-fuel ratio imbalance. Check the fault conditions and vehicle-specific procedure before replacing parts.P23FDCylinder 12 Injector B Air-Fuel Ratio ImbalanceCheck soonFuel System30–120 minutes for initial diagnosisP23FD relates to cylinder 12 injector b air-fuel ratio imbalance. Check the fault conditions and vehicle-specific procedure before replacing parts.P23FEBank 1 System B Air-Fuel Ratio ImbalanceCheck soonFuel System30–120 minutes for initial diagnosisP23FE relates to bank 1 system b air-fuel ratio imbalance. Check the fault conditions and vehicle-specific procedure before replacing parts.P23FFBank 2 System B Air-Fuel Ratio ImbalanceCheck soonFuel System30–120 minutes for initial diagnosisP23FF relates to bank 2 system b air-fuel ratio imbalance. Check the fault conditions and vehicle-specific procedure before replacing parts.P240DAlternative Fuel Low Pressure System LeakCheck soonFuel System30–120 minutes for initial diagnosisP240D relates to alternative fuel low pressure system leak. Check the fault conditions and vehicle-specific procedure before replacing parts.P240EAlternative Fuel High Pressure System LeakCheck soonFuel System30–120 minutes for initial diagnosisP240E relates to alternative fuel high pressure system leak. Check the fault conditions and vehicle-specific procedure before replacing parts.P240FEGR Slow ResponseCheck soonEmissions System30–120 minutes for initial diagnosisP240F relates to egr slow response. Check the fault conditions and vehicle-specific procedure before replacing parts.P2413EGR System PerformanceCheck soonEmissions System30–120 minutes for initial diagnosisP2413 relates to egr system performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2414O2 Sensor Exhaust Sample Error Bank 1 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2414 relates to o2 sensor exhaust sample error bank 1 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2415O2 Sensor Exhaust Sample Error Bank 2 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2415 relates to o2 sensor exhaust sample error bank 2 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2416O2 Sensor Signals Swapped Bank 1 Sensor 2/Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP2416 relates to o2 sensor signals swapped bank 1 sensor 2/bank 1 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P2417O2 Sensor Signals Swapped Bank 2 Sensor 2/Bank 2 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP2417 relates to o2 sensor signals swapped bank 2 sensor 2/bank 2 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P241AO2 Sensor Signals Swapped Bank 1 Sensor 1/Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP241A relates to o2 sensor signals swapped bank 1 sensor 1/bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P241BO2 Sensor Signals Swapped Bank 2 Sensor 1/Bank 2 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP241B relates to o2 sensor signals swapped bank 2 sensor 1/bank 2 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P241CThrottle Actuator Control System - Ice Blockage Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP241C relates to throttle actuator control system - ice blockage bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P241DSCR Inducement - Forced Engine ShutdownCheck soonSensors & Electronics30–120 minutes for initial diagnosisP241D relates to scr inducement - forced engine shutdown. 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.P241FEGR Cooler B Efficiency Below ThresholdCheck soonEmissions System30–120 minutes for initial diagnosisP241F relates to egr cooler b efficiency below threshold. Check the fault conditions and vehicle-specific procedure before replacing parts.P2425EGR Cooling Valve Control Circuit/OpenCheck soonEmissions System30–120 minutes for initial diagnosisP2425 relates to egr cooling valve control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2426EGR Cooling Valve Control Circuit LowCheck soonEmissions System30–120 minutes for initial diagnosisP2426 relates to egr cooling valve control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2427EGR Cooling Valve Control Circuit HighCheck soonEmissions System30–120 minutes for initial diagnosisP2427 relates to egr cooling valve control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2428Exhaust Gas Temperature Too High Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP2428 relates to exhaust gas temperature too high bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2429Exhaust Gas Temperature Too High Bank 2Check soonEmissions System30–120 minutes for initial diagnosisP2429 relates to exhaust gas temperature too high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P242AExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3Check soonEmissions System30–120 minutes for initial diagnosisP242A relates to exhaust gas temperature sensor circuit bank 1 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.