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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 3553–3576 of 7353

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P201BIntake Manifold Runner Control Actuator Supply Voltage Low Bank 1Check soonElectrical & Charging System30–120 minutes for initial diagnosisP201B relates to intake manifold runner control actuator supply voltage low bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P201CIntake Manifold Runner Control Actuator Supply Voltage Low Bank 2Check soonElectrical & Charging System30–120 minutes for initial diagnosisP201C relates to intake manifold runner control actuator supply voltage low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P201DIntake Manifold Runner Control Actuator Internal Performance Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP201D relates to intake manifold runner control actuator internal performance bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P201EIntake Manifold Runner Control Actuator Internal Performance Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP201E relates to intake manifold runner control actuator internal performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P201FReductant Pump A Stuck OnCheck soonSensors & Electronics30–120 minutes for initial diagnosisP201F relates to reductant pump a stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P2020Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2020 relates to intake manifold runner position sensor/switch circuit range/performance bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2021Intake Manifold Runner Position Sensor/Switch Circuit Low Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2021 relates to intake manifold runner position sensor/switch circuit low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2022Intake Manifold Runner Position Sensor/Switch Circuit High Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2022 relates to intake manifold runner position sensor/switch circuit high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2023Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2023 relates to intake manifold runner position sensor/switch circuit intermittent bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2024EVAP Fuel Vapor Temperature Sensor CircuitLow priorityEmissions System30–120 minutes for initial diagnosisP2024 relates to evap fuel vapor temperature sensor circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2025EVAP Fuel Vapor Temperature Sensor PerformanceLow priorityEmissions System30–120 minutes for initial diagnosisP2025 relates to evap fuel vapor temperature sensor performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2026EVAP Fuel Vapor Temperature Sensor Circuit Low VoltageLow priorityEmissions System30–120 minutes for initial diagnosisP2026 relates to evap fuel vapor temperature sensor circuit low voltage. Check the fault conditions and vehicle-specific procedure before replacing parts.P2027EVAP Fuel Vapor Temperature Sensor Circuit High VoltageCheck soonEmissions System30–120 minutes for initial diagnosisP2027 relates to evap fuel vapor temperature sensor circuit high voltage. Check the fault conditions and vehicle-specific procedure before replacing parts.P2028EVAP Fuel Vapor Temperature Sensor Circuit IntermittentLow priorityEmissions System30–120 minutes for initial diagnosisP2028 relates to evap fuel vapor temperature sensor circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P2029Fuel Fired Heater DisabledCheck soonFuel System30–120 minutes for initial diagnosisP2029 relates to fuel fired heater disabled. Check the fault conditions and vehicle-specific procedure before replacing parts.P202AReductant Tank Heater Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP202A relates to reductant tank heater control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P202BReductant Tank Heater Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP202B relates to reductant tank heater control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P202CReductant Tank Heater Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP202C relates to reductant tank heater control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P202DReductant LeakageCheck soonSensors & Electronics30–120 minutes for initial diagnosisP202D relates to reductant leakage. Check the fault conditions and vehicle-specific procedure before replacing parts.P202EReductant Injection Valve Circuit Range/Performance Bank 1 Unit 1Check soonFuel System30–120 minutes for initial diagnosisP202E relates to reductant injection valve circuit range/performance bank 1 unit 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P202FReductant/Regeneration Supply Control Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP202F relates to reductant/regeneration supply control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2030Fuel Fired Heater PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP2030 relates to fuel fired heater performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2031Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 2Check soonEmissions System30–120 minutes for initial diagnosisP2031 relates to exhaust gas temperature sensor circuit bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2032Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 2Check soonEmissions System30–120 minutes for initial diagnosisP2032 relates to exhaust gas temperature sensor circuit low bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.