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9,253 diagnostic guides

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Find codes by symptomChoose what you notice to search matching code guides.

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

Code family

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 937–960 of 2110

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P20FCReductant Pump B Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP20FC relates to reductant pump b control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P20FDReductant Pump B Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP20FD relates to reductant pump b control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P20FEReductant Metering Unit 1 PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP20FE relates to reductant metering unit 1 performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P20FFReductant Control Module PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP20FF relates to reductant control module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2100Throttle Actuator A Control Motor Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2100 relates to throttle actuator a control motor circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2101Throttle Actuator A Control Motor Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2101 relates to throttle actuator a control motor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2102Throttle Actuator A Control Motor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2102 relates to throttle actuator a control motor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2103Throttle Actuator A Control Motor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2103 relates to throttle actuator a control motor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2104Throttle Actuator Control System - Forced IdleCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2104 relates to throttle actuator control system - forced idle. Check the fault conditions and vehicle-specific procedure before replacing parts.P2105Throttle Actuator Control System - Forced Engine ShutdownCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2105 relates to throttle actuator control system - forced engine shutdown. Check the fault conditions and vehicle-specific procedure before replacing parts.P2106Throttle Actuator Control System - Forced Limited PowerCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2106 relates to throttle actuator control system - forced limited power. Check the fault conditions and vehicle-specific procedure before replacing parts.P2107Throttle Actuator A Control Module ProcessorCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2107 relates to throttle actuator a control module processor. Check the fault conditions and vehicle-specific procedure before replacing parts.P2108Throttle Actuator A Control Module PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2108 relates to throttle actuator a control module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2109Throttle/Pedal Position Sensor A Minimum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2109 relates to throttle/pedal position sensor a minimum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P210AThrottle Actuator B Control Motor Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP210A relates to throttle actuator b control motor circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P210BThrottle Actuator B Control Motor Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP210B relates to throttle actuator b control motor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P210CThrottle Actuator B Control Motor Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP210C relates to throttle actuator b control motor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P210DThrottle Actuator B Control Motor Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP210D relates to throttle actuator b control motor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P210FThrottle Actuator B Control System - Forced Limited RPMCheck soonSensors & Electronics30–120 minutes for initial diagnosisP210F relates to throttle actuator b control system - forced limited rpm. Check the fault conditions and vehicle-specific procedure before replacing parts.P2110Throttle Actuator A Control System - Forced Limited RPMCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2110 relates to throttle actuator a control system - forced limited rpm. Check the fault conditions and vehicle-specific procedure before replacing parts.P2111Throttle Actuator A Control System - Stuck OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2111 relates to throttle actuator a control system - stuck open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2112Throttle Actuator A Control System - Stuck ClosedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2112 relates to throttle actuator a control system - stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2113Throttle/Pedal Position Sensor B Minimum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2113 relates to throttle/pedal position sensor b minimum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2114Throttle/Pedal Position Sensor C Minimum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2114 relates to throttle/pedal position sensor c minimum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.