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Home >> Volvo >> 2007 >> S40 Base, 2.4 39, Automatic >> Repair and Diagnosis >> Electrical >> Charging Systems >> Miscellaneous Electrical Components - Design And Function (544 Body) >> Headlamp Control Module (HCM) (2008-2010) >> Diagnostic Functions >> Notes

Diagnostic Functions: Notes

NOTE:

The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.