Your best bet is to consult your owner's manual. It will have a detailed diagram of the fuse box(es) (there may be more than one in the vehicle) showing which fuse(s) and/or relay(s) are associated with the power windows and sunroof.
If you don't have the owner's manual, you can try finding a digital version online through Cadillac's website or a third-party automotive repair manual provider like Haynes or Chilton. These manuals will have detailed diagrams and explanations.
General Locations to Check:
Cadillac DeVille fuse boxes are typically located:
* Under the hood: This usually houses higher-amperage fuses protecting major systems.
* Inside the car: Often in the dashboard, possibly under the steering wheel or in the center console. This will have smaller fuses for interior accessories.
Remember to always disconnect the negative battery terminal before working with fuses or relays to prevent electrical shorts or injury. Take careful note of the fuse ratings before replacing any.