AC won't come one fuel gauge doesn't work

HELPMYCADDY

MEMBER
1993 CADILLAC DEVILLE
13,500 MILES

I have had a new 'brain' put in the car. I was told I needed a new module? But what kind? The ac won't even come on. Speedometer works, so does radio. Please help!

Sunday, July 29th, 2012 AT 5:32 PM

5 Replies

ASEMASTER6371

MECHANIC
52,797 POSTS

Start with basics. What are the pressures for the ac the way it is now?

Roy

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Sunday, July 29th, 2012 AT 5:35 PM

HELPMYCADDY

MEMBER
3 POSTS

Pressure is good. Not sure what the exact reading is.

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Sunday, July 29th, 2012 AT 5:53 PM

ASEMASTER6371

MECHANIC
52,797 POSTS

We need pressure numbers as it will depend on starting up the system with the correct pressure

Roy

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Sunday, July 29th, 2012 AT 6:28 PM

HELPMYCADDY

MEMBER
3 POSTS

Ok, i'll have to ask my dad he's the one working on it for me.

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Sunday, July 29th, 2012 AT 6:59 PM

CADIEMAN

MECHANIC
3,544 POSTS

The problem here is 1 off the panels is bad. Use a t15 to remove the wood grain. Then u remove the fuel center and a/c panel. Start by disconnecting the fuel panel connector. Does the a/c panel light up?If no plug the fuel center back in and unplug the a/c panel. Does the fuel center lite up?If nethier panel lites u will need to replace the bcm.