Hello, I have a Mazda 323 HS 88 and I hope you can give me a hand with it. When the engine temperature is around 90-92 degrees, the radiator fan should be activated. But, in my case, it does not start working unless the windshield wipers are activated. The wipers are starting to fail, and when they do not work, the radiator fan does not activate either. Can you help me please? Thanks.