Wiper Switch: Service and Repair

Replacement

1. Disconnect the negative (-) battery terminal.
2. Remove the steering column upper and lower shrouds (A) after removing 3 screws.




3. Remove the wiper switch (A) by pushing the lock pin (B) after disconnecting the connector (C).




4. Installation is the reverse of removal.

Inspection

1. Multifunction switch operates head lamps and wiper by communicating with BCM through LIN communication.
2. Check BCM input/output value of each position of multifunction switch when you inspect the module whether faulty or not.
3. Select model and BCM menu.








4. Select "Current data" and wiper.




5. Check input/output value of washer & wiper switch.





Inspection
Check for continuity between the terminals.
1. There should be continuity between the No.30 and No.87 terminals when power and ground are connected to the No.85 and No.86 terminals.
2. There should be no continuity between the No.30 and No.87 terminals when power is disconnected.








3. Check for continuity between the terminals while operating the wiper and washer switch. If it is not normal condition, replace wiper and wiper switch.





Wiper Switch









Washer Switch