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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 1513–1536 of 8256

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P0604Internal Control Module Random Access Memory (RAM) ErrorCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0604 relates to internal control module random access memory (ram) error. Check the fault conditions and vehicle-specific procedure before replacing parts.P0605Internal Control Module Read Only Memory (ROM) ErrorCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0605 relates to internal control module read only memory (rom) error. Check the fault conditions and vehicle-specific procedure before replacing parts.P0607Control Module PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0607 relates to control module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0608Control Module VSS Output ACheck soonSensors & Electronics30–120 minutes for initial diagnosisP0608 relates to control module vss output a. Check the fault conditions and vehicle-specific procedure before replacing parts.P0609Control Module VSS Output BCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0609 relates to control module vss output b. Check the fault conditions and vehicle-specific procedure before replacing parts.P060AInternal Control Module Monitoring Processor PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060A relates to internal control module monitoring processor performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P060BInternal Control Module A/D Processing PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060B relates to internal control module a/d processing performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P060CInternal Control Module Main Processor PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060C relates to internal control module main processor performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P060DInternal Control Module Accelerator Pedal Position PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060D relates to internal control module accelerator pedal position performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P060EInternal Control Module Throttle Position PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP060E relates to internal control module throttle position performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P060FInternal Control Module Coolant Temperature PerformanceCheck soonEngine Problems30–120 minutes for initial diagnosisP060F relates to internal control module coolant temperature performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0610Control Module Vehicle Options ErrorCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0610 relates to control module vehicle options error. Check the fault conditions and vehicle-specific procedure before replacing parts.P0611Fuel Injector Control Module PerformanceCheck soonFuel System30–120 minutes for initial diagnosisP0611 relates to fuel injector control module performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P0612Fuel Injector Control Module Relay ControlCheck soonFuel System30–120 minutes for initial diagnosisP0612 relates to fuel injector control module relay control. Check the fault conditions and vehicle-specific procedure before replacing parts.P0613TCM ProcessorCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0613 relates to tcm processor. Check the fault conditions and vehicle-specific procedure before replacing parts.P0614ECM/TCM IncompatibleCheck soonSensors & Electronics30–120 minutes for initial diagnosisP0614 relates to ecm/tcm incompatible. Check the fault conditions and vehicle-specific procedure before replacing parts.P0616Starter Relay A Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0616 relates to starter relay a circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P0617Starter Relay A Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP0617 relates to starter relay a circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P0618Alternative Fuel Control Module KAM ErrorCheck soonFuel System30–120 minutes for initial diagnosisP0618 relates to alternative fuel control module kam error. Check the fault conditions and vehicle-specific procedure before replacing parts.P0619Alternative Fuel Control Module RAM/ROM ErrorCheck soonFuel System30–120 minutes for initial diagnosisP0619 relates to alternative fuel control module ram/rom error. Check the fault conditions and vehicle-specific procedure before replacing parts.P061AInternal Control Module Torque PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061A relates to internal control module torque performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P061BInternal Control Module Torque Calculation PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061B relates to internal control module torque calculation performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P061CInternal Control Module Engine RPM PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061C relates to internal control module engine rpm performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P061DInternal Control Module Engine Air Mass PerformanceCheck soonSensors & Electronics30–120 minutes for initial diagnosisP061D relates to internal control module engine air mass performance. Check the fault conditions and vehicle-specific procedure before replacing parts.