Chevrolet Trailblazer EXT Windshield Wiper Module Replacement at your home or office.

What is the Windshield Wiper Module all about?

The windshield wiper module, also called the wiper governor module or control module depending on the automaker, is responsible for controlling and coordinating all the various functions. It’s generally located inside the dash, mounted several inches above the accelerator pedal (the actual mounting location will vary depending on the make and model). It’s a miniature computer that’s responsible for managing the operation of the entire system, from the wiper switch on the steering column to the operation of the windshield wiper gearbox.

When the wiper switch position is changed, whether from off to on, or from one speed to another, a signal is sent from the switch to the windshield wiper module. The control module interprets that input signal and sends an output signal to the windshield wiper motor. When the wiper module is not working as designed, the wipers may not work when commanded, may not shut off, and may not work at the designated speed. The wipers can also start acting on their own volition with no input.