Sunroof and power windows not working

1999 CADILLAC DEVILLE
123,000 MILES • 3.5L • V8 • 2WD • AUTOMATIC
Avatar
JIMMYPRINCE
  • MEMBER
  • 1 POST
My power windows and my sunroof nor is my cruise control working. what is the problem? I checked the fuses in the relays under the hood and they were good.
Dec 26, 2020 at 3:58 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi,

The windows and the sun roof are both powered by a 30 amp circuit breaker. You need to check it to see if it is bad. If you look at the two pics below, the first is from the sun roof motor wiring schematic and the second is from the power window schematic. Note they both have the same power supply. If you look at picture 3, I highlighted the circuit breaker responsible for powering them. You need to check if there is power in and out from that circuit breaker.

Here is a link that you may find helpful:.


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

Let me know what you find or if you have other questions.

Take care,
Joe
Dec 27, 2020 at 9:44 PM