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 you make a diagnosis of multi function switch with the scan tool, select model and "BCM".
Select "Current data" and check the Input/Output condition of BCM.
Disconnect the negative (-) battery terminal.
Remove the steering column upper and lower shrouds (A) after removing 3 screws.
Remove the multi function switch after loosening 2 screws and disconnecting connector. (In case of multi function switch assembly replacement)
Remove the light switch (A) after loosening 2 screws.
Remove the wiper switch (A) after disconnecting the connector and loosening 2 screws.
Installation is the reverse of removal.