The brake lights do not go through the BCM or as ford call it the GEM (generic electronic module) but the windows do. Here are the window wiring diagrams so you can see how the system works. I have seen the main window switch (drivers' side) go and cause the passenger side window to stop working. Please start a new thread for the brake light issue.
This guide can help show you how to test the main window switch:
https://www.2carpros.com/articles/electric-window-repair
At the master switch use a test light to see if you have power and ground as you work the switch, it will flip flop power and ground as you move the switch.
https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
Check out the images (below). Please upload pictures or videos of the problem so we can see what's going on.
Images (Click to enlarge)
Jan 14, 2024 at 2:37 PM
