What is an intermittent wiper relay?
The intermittent wiper relay is an electric switch that allows you to select between multiple predetermined wiper speed settings.
When you activate the windshield wipers and choose your desired speed, the intermittent wiper relay opens a circuit, sending a precise amount of energy to the wiper module. The module then sends that power to the wiper motor, activating your wiper blades to clear your windshield.
When should I replace the intermittent wiper relay on my car?
You should replace your intermittent wiper relay if the wiper blades are malfunctioning or they stop working completely.
Wiper arms move at only one speed
Wiper blades move faster or slower than the speed setting you select
Wiper blades fail to work altogether
Activating wipers produces a humming noise
How often should an intermittent wiper relay be replaced?
Intermittent wiper relays are meant to live and die with your vehicle, but they can experience wear and tear and require replacement.
You should watch for warning signs of a faulty intermittent wiper relay to know when a replacement is necessary.
Can I replace my intermittent wiper relay myself?
Replacing an intermittent wiper relay is a relatively simple job that you can complete at home.
However, if you don't feel confident in your DIY auto repair skills, a professional mechanic can easily perform this service for you.