Theory Of Operation
WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.
The Body Control Module (BCM) receives a hardwired signal from the Right Multi-function Switch indicating the front wiper operation is requested. When this signal is received, the BCM provides a ground output signal to wiper motor for low speed or high speed wiper operation. For additional information on the Front Wiper operation, Refer to WIPER AND WASHER SYSTEM .