A/C system not working after installing aftermarket stereo

1995 BUICK LESABRE

206,000 MILES • 2WD • AUTOMATIC

T_HILLS

MEMBER
2 POSTS

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?

Jul 26, 2018 at 7:46 AM

ASEMASTER6371

✓Experienced Mechanic
52,796 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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Mar 22, 2021 at 6:15 AM

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.

Mar 22, 2021 at 6:15 AM

ASEMASTER6371

✓Experienced Mechanic
52,796 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

Images (Click to enlarge)

Mar 22, 2021 at 6:15 AM

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A/C system not working after installing aftermarket stereo

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