Dash cluster will not light up in daytime, but works great at night?

2005 CHEVROLET SILVERADO

114,000 MILES • 5.3L • V8 • 4WD • AUTOMATIC

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My dash Cluster will not light up during the daytime, but at nighttime when the Headlights are on it works fine. The dimmer switch works, and it is backlit great. I cannot see during the daytime. Why does it not light up in the daylight hours?

Jun 14, 2023 at 4:39 PM

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I would check the TBC 2A fuse on the left side of the dash fuse panel, here is a guide to help:

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

If the fuse is okay, it sounds like the BCM is going out but to be sure we should do a CAN scan. You can get a CAN scanner (Controller Area Network) which will work on most cars from Amazon.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is how to change the BCM out and the instrument cluster wiring diagrams so you can see how the system works. You can get a preprogrammed unit by searching Google or Ebay. Check out the images (below). Please let us know what happens.

Images (Click to enlarge)

Jun 15, 2023 at 1:30 PM