Delay Operation

Windshield wiper delay operation is a low speed wiper motor function with a variable delay interval between the wiper motor cycles. The delay interval is determined by a series of 5 resistors within the wiper/washer switch. The body control module (BCM) monitors the voltage on the wiper switch low/pulse signal circuit to determine the delay interval between the low speed wiper motor cycles.

If the wiper switch is moved from one delay interval to a another, the BCM will command an immediate wipe cycle and reset the delay timer.