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No illumination of instrument panel, odometer and gear selection?

Tiny
DR MAC 56
  • MEMBER
  • 2002 CHEVROLET 1500
  • 4.8L
  • V8
  • 4WD
  • AUTOMATIC
  • 110,000 MILES
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
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Thursday, August 18th, 2022 AT 10:12 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 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.
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Thursday, August 18th, 2022 AT 1:51 PM
Tiny
DR MAC 56
  • MEMBER
  • 0 POST
Radio fuse okay. Probably is instrument panel cluster itself that needs rebuild.
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Thursday, August 18th, 2022 AT 2:16 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
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Yep, it is common for them to go out.
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Friday, August 19th, 2022 AT 11:05 AM

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