Why do the windscreen wipers of my 2019 Mazda CX-8 keep coming on and stopping in odd positions?
Asked by Jodie
The front windscreen wipers of my 2019 Mazda CX-8 keep coming on when I start the car, and also stop in odd positions on the windscreen. Is this a common fault, or a quick fix? Thank you.
Answered by CarsGuide
2 Sep 2024In the old days, this would (probably) have been a simple matter of a faulty wiper switch. But on modern cars, functions like the wipers are controlled by a computer called the body-control module. If this starts to fail it can send odd signals to the various things it controls (wipers, lights, central locking, climate-control, entertainment systems and many more).
An automotive electrician might be able to pin-point the problem, and that’s a good place to start. But before you do that, try this: Disconnect the car’s battery and leave it overnight. When you reconnect the battery, you might just find the computer has reset itself and things return to normal. It can sometimes be just a temporary fix, but it’s definitely worth a try. And it’s free.
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