Generic Fault Codes & DTC List

Manufacturer and ECU-specific fault-code meanings. Check the stated ECU, model and code format against your diagnostic scan.

Generic fault codes — page 23
CodeMeaningApplicability
P0622Alternator, field control -circuit malfunctionGeneric Generic OBD
P0623Generator control lamp -circuit malfunctionGeneric Generic OBD
P0624Filler cap control lamp -circuit malfunctionGeneric Generic OBD
P0625Generator field terminal -circuit lowGeneric Generic OBD
P0626Generator field terminal -circuit highGeneric Generic OBD
P0627Fuel pump control -circuit openGeneric Generic OBD
P0628Fuel pump control -circuit lowGeneric Generic OBD
P0629Fuel pump control -circuit highGeneric Generic OBD
P062AFuel Pump "A" Control Circuit Range/PerformanceGeneric Generic OBD
P062BInternal Control Module Fuel Injector Control PerformanceGeneric Generic OBD
P062CInternal Control Module Vehicle Speed PerformanceGeneric Generic OBD
P062DFuel Injector Driver Circuit PerformanceGeneric Generic OBD
P062EFuel Injector Driver Circuit PerformanceGeneric Generic OBD
P062FInternal Control Module EEPROM ErrorGeneric Generic OBD
P0630VIN not programmed or mismatch -ECM/PCMGeneric Generic OBD
P0631VIN not programmed or mismatch -TCMGeneric Generic OBD
P0632Odometer not programmed -ECM/PCMGeneric Generic OBD
P0633Immobilizer key not programmed -ECM/PCMGeneric Generic OBD
P0634PCM/ECM/TCM -internal temperature too highGeneric Generic OBD
P0635Power steering control -circuit malfunctionGeneric Generic OBD
P0636Power steering control -circuit lowGeneric Generic OBD
P0637Power steering control -circuit highGeneric Generic OBD
P0638Throttle actuator control, bank 1 -range/performance problemGeneric Generic OBD
P0639Throttle actuator control, bank 2 -range/performanceGeneric Generic OBD
P063AGenerator Voltage Sense CircuitGeneric Generic OBD
P063BGenerator Voltage Sense Circuit Range/PerformanceGeneric Generic OBD
P063CGenerator Voltage Sense Circuit LowGeneric Generic OBD
P063DGenerator Voltage Sense Circuit HighGeneric Generic OBD
P063EAuto Configuration Throttle Input Not PresentGeneric Generic OBD
P063FAuto Configuration Engine Coolant Temperature Input Not PresentGeneric Generic OBD
P0640Intake air heater control -circuit malfunctionGeneric Generic OBD
P0641Sensor reference voltage A -circuit openGeneric Generic OBD
P0642Engine control module (ECM), knock control -defectiveGeneric Generic OBD
P0643Sensor reference voltage A -circuit highGeneric Generic OBD
P0644Driver display, serial communication -circuit malfunctionGeneric Generic OBD
P0645Air conditioning (AC)Generic Generic OBD
P0646AC compressor clutch relay -circuit lowGeneric Generic OBD
P0647AC compressor clutch relay -circuit highGeneric Generic OBD
P0648Immobilizer control lamp -circuit malfunctionGeneric Generic OBD
P0649Cruise control lamp -circuitGeneric Generic OBD
P064AFuel Pump Control ModuleGeneric Generic OBD
P064BPTO Control ModuleGeneric Generic OBD
P064CGlow Plug Control ModuleGeneric Generic OBD
P064DInternal Control Module O2 Sensor Processor PerformanceGeneric Generic OBD
P064EInternal Control Module O2 Sensor Processor PerformanceGeneric Generic OBD
P064FUnauthorized Software/Calibration DetectedGeneric Generic OBD
P0650Malfunction indicator lamp (MIL) -circuit malfunctionGeneric Generic OBD
P0651Sensor reference voltage B -circuit openGeneric Generic OBD
P0652Sensor reference voltage B -circuit lowGeneric Generic OBD
P0653Sensor reference voltage B -circuit highGeneric Generic OBD

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