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Home >> Volvo >> 2007 >> XC70 >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Control Modules - Design And Function (XC) - 2 Of 2 >> Central Electronic Module (CEM) (2005-2007) >> Diagnostic Functions >> Diagnostic Trouble Codes (DTCs)

Diagnostic Trouble Codes (DTCs)

A diagnostic trouble code (DTC) is stored if the control module detects a fault. The control module can store up to 10 diagnostic trouble codes (DTCs). A fault which is detected in the most recent operating cycle is defined as permanent. Other faults which are detected are defined as intermittent.