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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.

Sensors & Electronics 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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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 1681–1704 of 2110

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P278BKick Down Switch Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278B relates to kick down switch circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P278CKick Down Switch Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278C relates to kick down switch circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P278DKick Down Switch Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278D relates to kick down switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P278EKick Down Switch Circuit Intermittent/ErraticCheck soonSensors & Electronics30–120 minutes for initial diagnosisP278E relates to kick down switch circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2790Gate Select Direction CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2790 relates to gate select direction circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2791Gate Select Direction Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2791 relates to gate select direction circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2792Gate Select Direction Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2792 relates to gate select direction circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P279DFour Wheel Drive (4WD) Range Signal CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP279D relates to four wheel drive (4wd) range signal circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P279EFour Wheel Drive (4WD) Range Signal Circuit Range/PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP279E relates to four wheel drive (4wd) range signal circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P279FFour Wheel Drive (4WD) Range Signal Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP279F relates to four wheel drive (4wd) range signal circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P27A0Four Wheel Drive (4WD) Range Signal Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP27A0 relates to four wheel drive (4wd) range signal circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2887Park Lock/Pawl Actuator CircuitCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2887 relates to park lock/pawl actuator circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2888Park Lock/Pawl Actuator Circuit/OpenCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2888 relates to park lock/pawl actuator circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2889Park Lock/Pawl Actuator Circuit LowCheck soonSensors & Electronics30–120 minutes for initial diagnosisP2889 relates to park lock/pawl actuator circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P288APark Lock/Pawl Actuator Circuit HighCheck soonSensors & Electronics30–120 minutes for initial diagnosisP288A relates to park lock/pawl actuator circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P288BPark Lock/Pawl Actuator Circuit PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP288B relates to park lock/pawl actuator circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F7Exhaust Pressure Too High Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP28F7 relates to exhaust pressure too high bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F8Exhaust Pressure Too High Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP28F8 relates to exhaust pressure too high bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P28F9Exhaust Pressure Too Low Bank 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP28F9 relates to exhaust pressure too low bank 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P28FAExhaust Pressure Too Low Bank 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP28FA relates to exhaust pressure too low bank 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2A00O2 Sensor Circuit Range/Performance Bank 1 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2A00 relates to o2 sensor circuit range/performance bank 1 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.P2A01O2 Sensor Circuit Range/Performance Bank 1 Sensor 2Check soonSensors & Electronics30–120 minutes for initial diagnosisP2A01 relates to o2 sensor circuit range/performance bank 1 sensor 2. Check the fault conditions and vehicle-specific procedure before replacing parts.P2A02O2 Sensor Circuit Range/Performance Bank 1 Sensor 3Check soonSensors & Electronics30–120 minutes for initial diagnosisP2A02 relates to o2 sensor circuit range/performance bank 1 sensor 3. Check the fault conditions and vehicle-specific procedure before replacing parts.P2A03O2 Sensor Circuit Range/Performance Bank 2 Sensor 1Check soonSensors & Electronics30–120 minutes for initial diagnosisP2A03 relates to o2 sensor circuit range/performance bank 2 sensor 1. Check the fault conditions and vehicle-specific procedure before replacing parts.