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Home >> Saab >> 2004 >> 9-3 Linear, Standard >> Repair and Diagnosis >> Quick Lookups >> Electrical Component Locations >> Component Locations >> Technical Description >> Light switch unit (684) >> Main task

Main task

Used to:

Select light position OFF, parking or headlamps
Activate front and rear fog lights
Set beam length on cars without Xenon lamps

BCM transmits switch status on the bus.

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