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Home >> Volvo >> 2009 >> S80 Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> Headlamp Control Module (HCM) - Specifications, Other >> Headlamp Control Module (HCM) >> Description Of Parameters >> Parameters, Value >> Power Supply, Value

Power Supply, Value

Measurement range 6 - 20 V.

Indicates the power supply to the headlamp control module (HCM).

The normal value when the alternator is charging: 13.0-14.5 V.