Replacing a Component

The headlamp control module (HCM) has registered an internal fault.

If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference upon start of the headlamp control module (HCM) or may be a different type of fault that occurs on different occasions. The fault is evaluated depending on how it occurs. If the problem recurs, replace the headlamp control module (HCM).

In the event of a permanent fault, replace the headlamp control module (HCM).

Remedy as necessary.

Fig 1: Identifying Headlight Control Module (HCM)

Courtesy of VOLVO CARS OF NORTH AMERICA.

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