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 you make a diagnosis of multi function switch with the scan tool, select model and "BCM".








4. Select "Current data" and check the Input/Output condition of BCM.