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

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Combination Switch: Testing and Inspection





Inspection (With Scan Tool)

1. It will be able to diagnose defects of multifunction switch with scan tool quickly. Scan tool can operates actuator forcefully, input/output value monitoring and self diagnosis.
2. Select model and menu.




3. Select "In-panel module(IPM).




4. Select "Current data".




5. Check the input/output status of multifunction switch.




6. Select "Front Area Module(FAM)" or "Rear Area Module(RAM)".




7. If you will check multifunction switch input data operation forcefully, select "Actuation test".