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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 3145–3168 of 6682

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P2044Reductant Temperature Sensor A Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2044 relates to reductant temperature sensor a circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2045Reductant Temperature Sensor A Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2045 relates to reductant temperature sensor a circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2046Reductant Temperature Sensor A Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2046 relates to reductant temperature sensor a circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P2047Reductant Injection Valve Circuit/Open Bank 1 Unit 1Check soonFuel System30–120 minutes for initial diagnosisP2047 relates to reductant injection valve circuit/open bank 1 unit 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2048Reductant Injection Valve Circuit Low Bank 1 Unit 1Check soonFuel System30–120 minutes for initial diagnosisP2048 relates to reductant injection valve circuit low bank 1 unit 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2049Reductant Injection Valve Circuit High Bank 1 Unit 1Check soonFuel System30–120 minutes for initial diagnosisP2049 relates to reductant injection valve circuit high bank 1 unit 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P204AReductant Pressure Sensor CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP204A relates to reductant pressure sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P204BReductant Pressure Sensor Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP204B relates to reductant pressure sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P204CReductant Pressure Sensor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP204C relates to reductant pressure sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P204DReductant Pressure Sensor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP204D relates to reductant pressure sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P204EReductant Pressure Sensor Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP204E relates to reductant pressure sensor circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P204FReductant System Performance Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP204F relates to reductant system performance bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2050Reductant Injection Valve Circuit/Open Bank 2 Unit 1Check soonFuel System30–120 minutes for initial diagnosisP2050 relates to reductant injection valve circuit/open bank 2 unit 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2051Reductant Injection Valve Circuit Low Bank 2 Unit 1Check soonFuel System30–120 minutes for initial diagnosisP2051 relates to reductant injection valve circuit low bank 2 unit 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2052Reductant Injection Valve Circuit High Bank 2 Unit 1Check soonFuel System30–120 minutes for initial diagnosisP2052 relates to reductant injection valve circuit high bank 2 unit 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2053Reductant Injection Valve Circuit/Open Bank 1 Unit 2Check soonFuel System30–120 minutes for initial diagnosisP2053 relates to reductant injection valve circuit/open bank 1 unit 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2054Reductant Injection Valve Circuit Low Bank 1 Unit 2Check soonFuel System30–120 minutes for initial diagnosisP2054 relates to reductant injection valve circuit low bank 1 unit 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2055Reductant Injection Valve Circuit High Bank 1 Unit 2Check soonFuel System30–120 minutes for initial diagnosisP2055 relates to reductant injection valve circuit high bank 1 unit 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2056Reductant Injection Valve Circuit/Open Bank 2 Unit 2Check soonFuel System30–120 minutes for initial diagnosisP2056 relates to reductant injection valve circuit/open bank 2 unit 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2057Reductant Injection Valve Circuit Low Bank 2 Unit 2Check soonFuel System30–120 minutes for initial diagnosisP2057 relates to reductant injection valve circuit low bank 2 unit 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2058Reductant Injection Valve Circuit High Bank 2 Unit 2Check soonFuel System30–120 minutes for initial diagnosisP2058 relates to reductant injection valve circuit high bank 2 unit 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2059Reductant Injection Air Pump Control Circuit/OpenCheck soonFuel System30–120 minutes for initial diagnosisP2059 relates to reductant injection air pump control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P205AReductant Tank Temperature Sensor A CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP205A relates to reductant tank temperature sensor a circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P205BReductant Tank Temperature Sensor A Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP205B relates to reductant tank temperature sensor a circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.