Lost power to my temperature/compass roof console

2001 CHEVROLET BLAZER
210,000 MILES • 4.3L • V6 • 4WD • AUTOMATIC
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ECV SIDEWINDER
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It started when I lost power to the fuse panel inside my vehicle located on the drivers side. I checked fuses and wires from battery to main fuse box under the hood. In wiggling wires and checking every fuse under the hood and inside somehow I regained power to the inside fuse panel. But now my compass/temperature panel located on the inside of the roof. Above my rear view mirror has stopped working. I have rechecked fuses and still no power to it. How do I regain the power to it? Thanks, Jason
Jun 18, 2018 at 4:07 AM
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STEVE W.
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Sounds like you will need to pull that fuse box out and plug the feed wire to the EVIC back in. It plugs into a socket on the back of that fuse panel. You will also discover that it is a loose or burnt main feed wire to that panel that caused it to lose power. Have had to repair two of the three Blazers I have owned for that same issue. The contact gets a bit of corrosion, that causes higher resistance and that causes more heat and it fails. I generally replace the connector, clean the contact and apply some dielectric grease and make sure they have good connections. Then reassemble.
Jun 18, 2018 at 11:22 AM
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ECV SIDEWINDER
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Thank you Steve. I am learning new quarks this Blazer is starting to have. It is one of the many electrical nightmares I have encountered. I will try what you recommend right away. Thank's for the advice I will get back to you when I am done to let you know how it worked out.
Ecv SideWinder,
Jason
Jun 18, 2018 at 3:08 PM
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STRAILER
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I found the wiring diagrams for you and a guide to help you test for power and to check the grounds.

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

Check out the diagrams (below). Please run this test and get back to us.

Cheers, Ken
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Jun 22, 2018 at 11:27 AM