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A/C system not working after installing aftermarket stereo

Tiny
T_HILLS
  • MEMBER
  • 1995 BUICK LESABRE
  • 2WD
  • AUTOMATIC
  • 206,000 MILES
I put a Walmart stereo in my car and right after my A/C will not work correctly. I cannot control it and it will not display anything, it is almost like it is stuck in the auto mode. I have brought it to Carey's electronics where I live and they told me that it is not an ECU problem and suggested unplug it and then plug it back in. I did it and it still did no do anything. I was thinking that the A/C box that has the controls and display is broken but I cannot tell. Does anyone have a same problem with this and/or know how to fix it?
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Thursday, July 26th, 2018 AT 2:46 PM

3 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

Did you have to tie into any wires other than the connector for the radio that you removed?

Does the panel light up?

Roy
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Monday, March 22nd, 2021 AT 1:15 PM
Tiny
T_HILLS
  • MEMBER
  • 2 POSTS
Asemaster6371.

Yes, I had to get an adapter for it and I wired everything with the help from a friend who installs them. All of the wires are correct on it. The panel does not light up, even if I put the stock stereo back in, that is why I think it is broke, but I am only 16 and I am only a beginner mechanic.
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Monday, March 22nd, 2021 AT 1:15 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Okay first, check all your fuses with a test light to be sure there is power going through them.

I attached a wire diagram. Check the fuses in the inside fuse block listed.

Roy
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Monday, March 22nd, 2021 AT 1:15 PM

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