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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

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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 865–888 of 1939

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P211CThrottle Actuator B Control Motor Current Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP211C relates to throttle actuator b control motor current range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P211DThrottle Actuator B Control Throttle Body Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP211D relates to throttle actuator b control throttle body range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P211EThrottle Actuator B Control Module ProcessorCheck soonSensors & Electronics30–120 minutes for initial diagnosisP211E relates to throttle actuator b control module processor. Check the fault conditions and vehicle-specific procedure before replacing parts.P211FThrottle Actuator B Control Module PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP211F relates to throttle actuator b control module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2120Throttle/Pedal Position Sensor/Switch D CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2120 relates to throttle/pedal position sensor/switch d circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2121Throttle/Pedal Position Sensor/Switch D Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2121 relates to throttle/pedal position sensor/switch d circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2122Throttle/Pedal Position Sensor/Switch D Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2122 relates to throttle/pedal position sensor/switch d circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2123Throttle/Pedal Position Sensor/Switch D Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2123 relates to throttle/pedal position sensor/switch d circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2124Throttle/Pedal Position Sensor/Switch D Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2124 relates to throttle/pedal position sensor/switch d circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P2125Throttle/Pedal Position Sensor/Switch E CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2125 relates to throttle/pedal position sensor/switch e circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2126Throttle/Pedal Position Sensor/Switch E Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2126 relates to throttle/pedal position sensor/switch e circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2127Throttle/Pedal Position Sensor/Switch E Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2127 relates to throttle/pedal position sensor/switch e circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2128Throttle/Pedal Position Sensor/Switch E Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2128 relates to throttle/pedal position sensor/switch e circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2129Throttle/Pedal Position Sensor/Switch E Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2129 relates to throttle/pedal position sensor/switch e circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P212AThrottle Position Sensor/Switch G CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP212A relates to throttle position sensor/switch g circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P212BThrottle Position Sensor/Switch G Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP212B relates to throttle position sensor/switch g circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P212CThrottle Position Sensor/Switch G Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP212C relates to throttle position sensor/switch g circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P212DThrottle Position Sensor/Switch G Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP212D relates to throttle position sensor/switch g circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P212EThrottle Position Sensor/Switch G Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP212E relates to throttle position sensor/switch g circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.P2130Throttle/Pedal Position Sensor/Switch F CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2130 relates to throttle/pedal position sensor/switch f circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2131Throttle/Pedal Position Sensor/Switch F Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2131 relates to throttle/pedal position sensor/switch f circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2132Throttle/Pedal Position Sensor/Switch F Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2132 relates to throttle/pedal position sensor/switch f circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2133Throttle/Pedal Position Sensor/Switch F Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2133 relates to throttle/pedal position sensor/switch f circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2134Throttle/Pedal Position Sensor/Switch F Circuit IntermittentCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2134 relates to throttle/pedal position sensor/switch f circuit intermittent. Check the fault conditions and vehicle-specific procedure before replacing parts.