Climate control not working

HALLEY MCGINLEY

MEMBER
1991 CHEVROLET SILVERADO
4.3L
V6
4WD
MANUAL
189,008 MILES

Have no lights on the climate control panel and it's not working no fan or heat or A/C.

Friday, October 29th, 2021 AT 1:25 PM

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

Hi,

If nothing is working, first I need you to check the fuse for the circuit. The fuse box should be on the driver's side under the instrument panel. In addition to checking the fuse's condition, it is important to make sure there is power both to the fuse and out from it.

Here is a link you may find helpful:

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

Let me know what you find.

Joe

See pic below.

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Friday, October 29th, 2021 AT 9:20 PM

HALLEY MCGINLEY

MEMBER
2 POSTS

All of those fuses are good. So, i'm guessing it's more than likely a wiring issue but we can't find a diagram for it.

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Saturday, October 30th, 2021 AT 8:22 AM

JACOBANDNICKOLAS

MECHANIC
109,747 POSTS

Hi,

Do me a favor. I was able to dig up older factory wiring schematics related to the circuit. Take a look through them and let me know if they help. Also, here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Take care,

Joe

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