Lights, climate control, fuel gauge, radio and brake lights did not work

2004 CHEVROLET IMPALA

250,000 MILES • 3.4L • V6 • 4WD • AUTOMATIC

GARDNERREBECCA44

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I replaced my heater core and when the dash was put back the fuel gauge, radio, climate control, interior lighting, and brake lights were not working.

Apr 13, 2022 at 4:07 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

WENDY W

AUTOMOTIVE REPAIR CONTRIBUTOR
86 POSTS

Hello,

It sounds like maybe one or more of the fuses have blown. I've attached the fuse block locations and fuse identification below. The bottom under-hood fuse block contains a 60amp fuse, labeled IGN SW, for many of the systems you're describing that are not currently working.

These guides provide some helpful tips on checking fuses and wiring:

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

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

If there are any blown fuses, the next step is to find out why that happened.

Please let us know what you find, and we'll be happy to offer further assistance.

Thanks, Wendy W.

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Apr 14, 2022 at 10:00 AM