Front Control Module Diagram

[demon510]

i have a 99 windstar and the passenger side vent window and front window will not roll down. the relays no longer click in the Front Control Module so i am thinking that the relays are shot because none of the fuses are blown.

instead of replacing the Front Control Module I was thinking about taking the input from the window switches and just adding my own SPDT Relays so it will be easier to replace in the future. Anyone one have any suggestions? If I knew the pinouts of the windows in question then I could diagnose the problems more efficently.

has anyone ever replaced the relays in the Front Control Module? I havent popped the top yet to check it out but I am pretty sure it should be an easy fix if I were to do so (simple desolder and add a new relay).

[tom_foreman]

Start with the simple things first.

Take the connector off of the window motor and read the voltage across the two pins. You should get a plus 12VDC or minus 12VDC when ever you push either the up or down button. If you do, the problem is with the motor.

Get a Haynes manual or something to see a diagram if you don't get the voltage you expect.

[BroncoJoe19]

If you are not hearing your relays, and suspect they may be bad, they certainly are cheap enough, and easy enough to replace. They pop in and out like a fuse.
Here is a litty ditty I wrote up about how to test one.
Even if it looks different, the concept is the same
How to test relay switch - Ford Bronco Zone Forums