Question about 1993 Cadillac DeVille

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Heater not blowing, No digital readout on the fuel data center and electronic climate control unit on a '92 deville.

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Check your fuses it might just need a new 20 amp fuse which is a little "U" shaped yellow thing

Posted on Feb 17, 2009

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I have a 92 cadillac deville and the fuel data and climate control screens both show a 'c' on them and the heat is on full blast?


the heater is in limp mode if you have electricity experience go to the library and get a manual because that heater does a wack of **** and you need to know how to press the right two buttons at once to get into the heater menus in the actual heater control

Feb 26, 2010 | 1992 Cadillac DeVille

1 Answer

1993 cadillac , letter c on fuel data center and climate control


I don't know about the fuel data issue, but the climate control module has failed.

Apr 21, 2009 | 1993 Cadillac DeVille

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1986 Cadillac Deville, Fuel Data Center & Electronic climate control panels both reading 'c' and blinking rapidly. the radio blinks rapidly as well, tried fuses, now i'm lost


If its a digital dash not that this sounds good but smack the dash right in front of the steering wheel a few times and if it clears up or makes it do other things it needs a new instrument cluster.

Mar 30, 2009 | 1986 Cadillac DeVille

2 Answers

Electronic climate control and fuel data center not working


Hi there :
hey have you taken it to autozone and had them do a free diagnostics on the car then can tell u exactly what the problem is i am suspecting a computer issue

Mar 07, 2009 | 1992 Cadillac DeVille

1 Answer

Fuel Data Center and Electronic Climate Control not funtioning


This is defenetly the BCM, I had a 1990 with all of the same problems. Buy a rebuilt and install it behind the clove box. Remember that you must install you memory prom into the new unit as they don't come with any in them (it is what is memorizing your miles driven.) You will get off pretty easy on this one as they are available and not too expensive.

Jan 13, 2009 | 1989 Cadillac Sedan DeVille

1 Answer

Instrument cluster went blank


I am currently working on my 92 Deville with the same problem. I was driving along, and smelled what I felt was a smoking printed circuit board. I looked down, and the digital fuel data center and climate control panel were dark.

I have the factory shop manual, and with the aid of a meter and the manual, I traced the problem to a bad BCM. The 16v supply coming from the BCM was gone. Opened up the BCM and found an overheated transistor. I also removed the fuel data center and the Climate control panel. The fuel data center panel did not smell good. I found a shorted capacitor on the Fuel data center circuit board. I am replacing the capacitor, and will be picking up a used BCM at the boneyard tomorrow. I might also have an overheated wire in a cable that might have to be replaced. I have not gotten that far in the troubleshooting yet.

Good luck with your problem.......

Oct 01, 2008 | 1991 Cadillac DeVille

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