Illumination lights are not working

2003 OLDSMOBILE BRAVADA
200,000 MILES • V6 • AUTOMATIC
Avatar
DWAYNE GREEN
  • MEMBER
  • 2 POSTS
I've changed the dimmer switch. none of the lights are out as the parking brake turn signals, but none of my illumination lights are working. like my cluster lights, door, window lights, or my a/c lights. checked fuses in two fuse boxes and still haven't solved the problem.
Nov 28, 2019 at 8:19 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
There are two fuses I need you to check in the fuse box at the rear of the vehicle. See the attached pic. Fuses 4 and 40 power the interior lighting. Let me know if they are good. Here are a few links you may find helpful:

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

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

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

Let me know what you find. Also, I am assuming it is only the interior lights based on your description. Let me know if that is wrong as well as if this is a standard wheel base or long wheel base vehicle.

Take care,
Joe

Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Nov 28, 2019 at 9:15 PM
Avatar
DWAYNE GREEN
  • MEMBER
  • 2 POSTS
I don't know how to explain but the lights on my dash that light up your speed and ac controls and window buttons aren't working. all the other lights are as in the dome when you open the door.
Nov 28, 2019 at 9:21 PM
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
Hi,

Check the two fuses I indicated in the attached picture. They are the power supply for the lights you are referring to.

Let me know what you find.

Joe
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Nov 28, 2019 at 10:26 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.