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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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Diagnostic codes

Showing 265–288 of 378

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P249AEGR Cooler Bypass Position Sensor Circuit High Bank 2Check soonEmissions System30–120 minutes for initial diagnosisP249A relates to egr cooler bypass position sensor circuit high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P249BEGR Cooler Bypass Position Sensor Circuit Intermittent/Erratic Bank 2Check soonEmissions System30–120 minutes for initial diagnosisP249B relates to egr cooler bypass position sensor circuit intermittent/erratic bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P249FExcessive Time To Enter Closed Loop Particulate Filter Regeneration ControlCheck soonEmissions System30–120 minutes for initial diagnosisP249F relates to excessive time to enter closed loop particulate filter regeneration control. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A0Closed Loop Particulate Filter Regeneration Control At Limit - Temperature Too LowCheck soonEmissions System30–120 minutes for initial diagnosisP24A0 relates to closed loop particulate filter regeneration control at limit - temperature too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A1Closed Loop Particulate Filter Regeneration Control At Limit - Temperature Too HighCheck soonEmissions System30–120 minutes for initial diagnosisP24A1 relates to closed loop particulate filter regeneration control at limit - temperature too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A2Particulate Filter Regeneration Incomplete Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP24A2 relates to particulate filter regeneration incomplete bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A3Particulate Filter Restriction - Soot Accumulation Bank 2Check soonEmissions System30–120 minutes for initial diagnosisP24A3 relates to particulate filter restriction - soot accumulation bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A4Particulate Filter Restriction - Soot Accumulation Too High Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP24A4 relates to particulate filter restriction - soot accumulation too high bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A5EGR Cooler Bypass Control Stuck/Open Bank 1Check soonEmissions System30–120 minutes for initial diagnosisP24A5 relates to egr cooler bypass control stuck/open bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A6EGR Cooler Bypass Control Stuck/Open Bank 2Check soonEmissions System30–120 minutes for initial diagnosisP24A6 relates to egr cooler bypass control stuck/open bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A7EGR Cooler Coolant Pump Control Circuit/OpenCheck soonEmissions System30–120 minutes for initial diagnosisP24A7 relates to egr cooler coolant pump control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A8EGR Cooler Coolant Pump Performance/Stuck OffCheck soonEmissions System30–120 minutes for initial diagnosisP24A8 relates to egr cooler coolant pump performance/stuck off. Check the fault conditions and vehicle-specific procedure before replacing parts.P24A9EGR Cooler Coolant Pump Control Circuit LowCheck soonEmissions System30–120 minutes for initial diagnosisP24A9 relates to egr cooler coolant pump control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P24AAEGR Cooler Coolant Pump Control Circuit HighCheck soonEmissions System30–120 minutes for initial diagnosisP24AA relates to egr cooler coolant pump control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P24ABEGR Cooler Coolant Pump Stuck OnCheck soonEmissions System30–120 minutes for initial diagnosisP24AB relates to egr cooler coolant pump stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P24ACEGR Cooler Coolant Pump Feedback Circuit LowCheck soonEmissions System30–120 minutes for initial diagnosisP24AC relates to egr cooler coolant pump feedback circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P24ADEGR Cooler Coolant Pump Feedback Circuit HighCheck soonEmissions System30–120 minutes for initial diagnosisP24AD relates to egr cooler coolant pump feedback circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P24AEParticulate Matter Sensor CircuitCheck soonEmissions System30–120 minutes for initial diagnosisP24AE relates to particulate matter sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P24AFParticulate Matter Sensor Circuit Range/PerformanceCheck soonEmissions System30–120 minutes for initial diagnosisP24AF relates to particulate matter sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P24B0Particulate Matter Sensor Circuit LowCheck soonEmissions System30–120 minutes for initial diagnosisP24B0 relates to particulate matter sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P24B1Particulate Matter Sensor Circuit HighCheck soonEmissions System30–120 minutes for initial diagnosisP24B1 relates to particulate matter sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P24B2Particulate Matter Sensor Circuit IntermittentCheck soonEmissions System30–120 minutes for initial diagnosisP24B2 relates to particulate matter sensor circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P24B3Particulate Matter Sensor Heater Control Circuit/OpenCheck soonEmissions System30–120 minutes for initial diagnosisP24B3 relates to particulate matter sensor heater control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P24B4Particulate Matter Sensor Heater Control Circuit Range/PerformanceCheck soonEmissions System30–120 minutes for initial diagnosisP24B4 relates to particulate matter sensor heater control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.