Wiper Motor Pulse Board Module

What is a Wiper Motor Pulse Board Module?

A wiper motor pulse board module or wiper control module is an electronic component used to control the activation and deactivation of the windshield wiper motor, various speed settings like intermittent or variable-speed wiping, and other functions. The wiper pulse board receives signals from the wiper switch to control the operation of the windshield wipers. This alters the signals sent to the wiper motor for intermittent or consistent operation, as well as allowing the speed to be controlled and operating the wipers a set number of times if the windshield washer system is used. Pulse board modules can suffer damage due to heat, environmental factors, corrosion, and more over time that may require replacement. If the pulse board malfunctions or fails, it can result in issues such as inconsistent wiper operation, loss of intermittent wiping functionality, or an inability to control wiper speed. If your wipers operate erratically or won't turn on or off, the wiper pulse board may need to be replaced. Some modern pulse boards are equipped with a diagnostic feature that stores error codes or provides feedback to the vehicle's body control module (BCM), which may help in diagnosing any issues related to the wiper system. These issues could also be related to a damaged or malfunctioning wiper switch, wiper relay, or blown fuse as well, so ensure a complete diagnosis before beginning your repair. O'Reilly Auto Parts carries replacement wiper motor pulse boards, wiper motors, and a variety of replacement windshield wipers for most vehicles to help you see better and drive safer.