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9,253 diagnostic guides
Find codes by symptomChoose what you notice to search matching code guides.
Rough idle or shakingVibration while stoppedHard to startLong cranking or no-startEngine stallsCuts out at idle or on the roadHesitates or loses powerSlow response when acceleratingBattery light is onCharging system warningHarsh 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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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.
Diagnostic codes
Showing 1177–1200 of 6682
P0609Control Module VSS Output BCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060AInternal Control Module Monitoring Processor PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060BInternal Control Module A/D Processing PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060CInternal Control Module Main Processor PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060DInternal Control Module Accelerator Pedal Position PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060EInternal Control Module Throttle Position PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060FInternal Control Module Coolant Temperature PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP0610Control Module Vehicle Options ErrorCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0611Fuel Injector Control Module PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP0612Fuel Injector Control Module Relay ControlCheck soonFuel System30–120 minutes for initial diagnosisP0613TCM ProcessorCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0614ECM/TCM IncompatibleCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0616Starter Relay A Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0617Starter Relay A Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0618Alternative Fuel Control Module KAM ErrorCheck soonFuel System30–120 minutes for initial diagnosisP0619Alternative Fuel Control Module RAM/ROM ErrorCheck soonFuel System30–120 minutes for initial diagnosisP061AInternal Control Module Torque PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061BInternal Control Module Torque Calculation PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061CInternal Control Module Engine RPM PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061DInternal Control Module Engine Air Mass PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061EInternal Control Module Brake Signal PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061FInternal Control Module Throttle Actuator Controller PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0623Generator Lamp Control CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0625Generator Field/F Terminal Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosis