A/C control does not have power

JOSEAGUIRRE

MEMBER
2007 GMC YUKON
6 CYL
4WD
AUTOMATIC
137,000 MILES

My A/C controls were working but they are not. Won’t come on or anything. I believe it has a short. I tested fuses relays even the control module. How much does it cost to get it fixed?

Monday, May 16th, 2022 AT 1:25 PM

3 Replies

KEN L

MASTER CERTIFIED MECHANIC
54,137 POSTS

We need to check to see if the HVAC fuse # 38 in the under-hood fuse panel has power. This guide can help, and I have included the fuse location below. Also, there are two grounds that need to be inspected which I have included as well. As far as cost goes it can run anywhere between $300.00 and $800.00 depending on how good the shop is with electrical problems. We can fix it ourselves; I can walk you through it.

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

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Images (Click to make bigger)

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Monday, May 16th, 2022 AT 7:26 PM

JOSEAGUIRRE

MEMBER
3 POSTS

Thank you so much Ken. Fuse 38 had no power. I got it back working. Now I have another problem, I just put in a new A/C compressor, but it is not coming on so that I can add Freon. I checked the relay. I bypassed it with a paper clip through the relay and it came on. What could my problem be?

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Tuesday, May 17th, 2022 AT 10:43 AM

KEN L

MASTER CERTIFIED MECHANIC
54,137 POSTS

I am glad you fixed it, but can I ask you to start a new question for the new problem?

Please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Cheers, Ken

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Tuesday, May 17th, 2022 AT 4:52 PM