Dashboard lights will not come on

OUTDOORSIERRA02

MEMBER
2002 GMC SIERRA
115,000 MILES

All of the illuminated icons cruise, seatbelt, blinkers, gear selection all work but the backlight does not work I checked most of the bulbs and they were fine. I can't find a fuse that is blown that would be for this. I am not exactly sure where to start with the wiring. Any idea where to go with finding the problem please help

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RIVERMIKERAT

MECHANIC
6,110 POSTS

Instrument panel schematic in 2 parts attached.

Images (Click to make bigger)

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Monday, December 5th, 2011 AT 12:29 AM

OUTDOORSIERRA02

MEMBER
3 POSTS

Can you please send a more enhanced photo. Could not read diagram

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Monday, December 5th, 2011 AT 1:48 AM

OUTDOORSIERRA02

MEMBER
3 POSTS

Even downloaded the image is unreadable. Can you please give me a suggestion on where to begin trouble shooting? Thank you for the answers so far.

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Monday, December 5th, 2011 AT 2:01 AM

RIVERMIKERAT

MECHANIC
6,110 POSTS

Huh. Both version are more than readable on my little laptop. Pull the dash panel/instrument cluster out and make sure the connectors are firmly connected. Check the pins on both sides of the connectors. Look the connectors over to check for loose or missing wires. Check the cluster grounds.

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Monday, December 5th, 2011 AT 2:22 AM