Power windows,wipers, driver seat not working

1991 MERCEDES BENZ 300CE
222,223 MILES • 3.6L • 6 CYL • 2WD • AUTOMATIC
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ME HOW
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All windows do not work using the switches but windows will go and down using the security entry with key. The seat will adjust before starting the car. While the car is running , windows, seats,and wipers do not work.
May 4, 2019 at 5:26 PM
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STRAILER
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Hello,

Lets start by checking the fuses here is a guide to help walk you through the steps of checking for power and the fuse location in the diagrams bellow.

https://www.2carpros.com/articles/how-to-check-a-car-fuse


Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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May 6, 2019 at 3:27 PM
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ME HOW
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Thank you for your response, it's not the fuses. I ordered a new relay module, I'll let you know if that fix the problem.
May 7, 2019 at 2:09 PM
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STRAILER
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Please let us know what happens.
May 7, 2019 at 2:09 PM