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Home >> Volvo >> 2008 >> XC70 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electrical Modules And Components - Design And Function - 2 Of 5 >> Driver Door Module (DDM) / Passenger Door Module (PDM) (2008-2012) >> Diagnostic Functions >> Diagnostic Trouble Codes (DTCS)

Diagnostic Trouble Codes (DTCS)

A diagnostic trouble code (DTC) is stored if the control module detects a fault.

If a fault disappears for any reason after the diagnostic trouble code (DTC) has been permanently stored in the control module, information about the fault remains in the control module.