Front Wiper Motor
The windshield wiper motors contains a logic module, internal sensors (to monitor the wiper arm position) and a multi-speed motor. The logic module from the driver side windshield wiper motor continuously monitors the wiper/washer switch inputs from the BCM when the ignition is ON. Depending on the input, the wiper motor activates to achieve the desired request.
The driver side windshield wiper motor is the primary wiper motor and controls the operation of both windshield wipers.
There is no mechanical linkage between the motor and the wiper arm, the wiper arms are mounted directly to the wiper motors.
If a windshield wiper motor is replaced, the windshield wiper motors must be initialized. REFER to: Windshield Wiper Motor Initialization