Multi Function Switch: Inspection: Overview

Multi function switch operates head lamps and wiper through LIN communication with BCM.
Check BCM input/output specification of multi function switch using the scan tool. If the specification is abnormal, replace the head lamp or wiper switch.
If diagnosis is required on the multi function switch, select "RONDO" and "BCM".

Fig 1: Scan Tool Display - RONDO And BCM
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Select "Current data" and check the input/output condition of BCM.

Fig 2: Scan Tool Display - CURRENT DATA
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Fig 3: Scan Tool Display - HEAD LAMP SW
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