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Home >> Volvo >> 2016 >> S80 T5 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Lighting - Design And Function >> Headlamp Control Module (HCM) >> Headlamp Control Module (HCM) [2007-2009] >> Diagnostic Functions >> General
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Diagnostic Functions: General

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

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