Diesel Data: Automotive Repair

Rear Wipe



Rear wipe

Rear wipe operation will only activate when the following conditions are met:
^ Ignition switch is in position II.
^ Rear wipe switch is operated.

Operating the rear wiper switch provides an earth input to the BCU. The BCU tells the IDM to activate the rear wiper relay, which provides battery voltage to the wiper motor through the normally closed contacts of the park switch.