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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 889–912 of 1939

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P214EReductant Pump A Current Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP214E relates to reductant pump a current too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P214FReductant Heater A Current Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP214F relates to reductant heater a current too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2158Vehicle Speed Sensor B CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2158 relates to vehicle speed sensor b circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2159Vehicle Speed Sensor B Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2159 relates to vehicle speed sensor b circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P215AVehicle Speed - Wheel Speed CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP215A relates to vehicle speed - wheel speed correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P215BVehicle Speed - Output Shaft Speed CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP215B relates to vehicle speed - output shaft speed correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P215COutput Shaft Speed - Wheel Speed CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP215C relates to output shaft speed - wheel speed correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P215DReductant Pump B Stuck OnCheck soonSensors & Electronics30–120 minutes for initial diagnosisP215D relates to reductant pump b stuck on. Check the fault conditions and vehicle-specific procedure before replacing parts.P215EReductant Heater D Current Too LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP215E relates to reductant heater d current too low. Check the fault conditions and vehicle-specific procedure before replacing parts.P215FReductant Heater D Current Too HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP215F relates to reductant heater d current too high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2160Vehicle Speed Sensor B Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2160 relates to vehicle speed sensor b circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2161Vehicle Speed Sensor B Circuit Intermittent/Erratic/HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2161 relates to vehicle speed sensor b circuit intermittent/erratic/high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2162Vehicle Speed Sensor A/B CorrelationCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2162 relates to vehicle speed sensor a/b correlation. Check the fault conditions and vehicle-specific procedure before replacing parts.P2163Throttle/Pedal Position Sensor A Maximum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2163 relates to throttle/pedal position sensor a maximum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2164Throttle/Pedal Position Sensor B Maximum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2164 relates to throttle/pedal position sensor b maximum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2165Throttle/Pedal Position Sensor C Maximum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2165 relates to throttle/pedal position sensor c maximum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2166Throttle/Pedal Position Sensor D Maximum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2166 relates to throttle/pedal position sensor d maximum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2167Throttle/Pedal Position Sensor E Maximum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2167 relates to throttle/pedal position sensor e maximum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2168Throttle/Pedal Position Sensor F Maximum Stop PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2168 relates to throttle/pedal position sensor f maximum stop performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2169Exhaust Pressure Regulator Vent Solenoid Control Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2169 relates to exhaust pressure regulator vent solenoid control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2170Exhaust Pressure Regulator Vent Solenoid Control Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2170 relates to exhaust pressure regulator vent solenoid control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2171Exhaust Pressure Regulator Vent Solenoid Control Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2171 relates to exhaust pressure regulator vent solenoid control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2172Throttle Actuator Control System - Sudden High Air Flow DetectedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2172 relates to throttle actuator control system - sudden high air flow detected. Check the fault conditions and vehicle-specific procedure before replacing parts.P2173Throttle Actuator Control System - High Air Flow DetectedCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2173 relates to throttle actuator control system - high air flow detected. Check the fault conditions and vehicle-specific procedure before replacing parts.