no illumination of instrument panel, odometer, and gear selection?

2002 CHEVROLET 1500
110,000 MILES • 4.8L • V8 • 4WD • AUTOMATIC
Avatar
DR MAC 56
  • MEMBER
  • 1 POST
Replaced light /dimmer switch with no improvement.

Checked several fuses and all okay.

IGN 0, Cruise, IGN 1, ILLUM.

No instrument panel illumination. All interior cabin lights working. Several fuses checked and all ok.

Instrument panel Fuse Block.
IGN 0. OK
Cruise OK
IGN 1. OK
ILLUM OK

What else to check?
Thanks
Aug 18, 2022 at 10:12 AM
Advertisement
Avatar
DR MAC 56
  • MEMBER
  • 0 POST
no instrument panel illumination.
All interior cabin lights working.
Several fuses checked and all ok.

Instrument panel Fuse Block.
IGN 0. OK
Cruise OK
IGN 1. OK
ILLUM OK
Replaced lights and dimmer switch with no fix
Aug 18, 2022 at 12:31 PM (Merged)
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,855 POSTS
It could be the instrument cluster is having a problem and needs to be rebuilt which is common. This video can show you how, also let's check the cluster power and grounds before the replacement to make sure that is the problem.

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

and

https://youtu.be/_HEC44xENxw

I noticed there is a radio fuse which also must be good for the cluster to work so please check that. Check out the diagrams (below). Please let us know what happens.
Images (Click to enlarge)
Attached Media
Attached Media
Aug 18, 2022 at 1:51 PM
Advertisement
Avatar
DR MAC 56
  • MEMBER
  • 0 POST
Radio fuse okay. Probably is instrument panel cluster itself that needs rebuild.
Aug 18, 2022 at 2:16 PM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,855 POSTS
Yep, it is common for them to go out.
Aug 19, 2022 at 11:05 AM