Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Combination Switch: Testing and Inspection










INSPECTION

1. Multi function switch operates head lamps and wiper through LIN communication with BCM.
2. 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.
3. If diagnosis is required on the multi function switch, select "SEDONA" and "BCM".




4. Select "In panel Module".




5. Select "Current data" and check the input/output condition of BCM.