Question about 1993 Cadillac DeVille

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1993 Deville, no fuel data, or gauge, no ac/heater control, no radio

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  • Cadillac Master
  • 987 Answers

Check all your fuses first, if they are all good, check for bad ground in dash panel

Posted on Apr 13, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: 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.

Posted on Jan 29, 2009

  • 1 Answer

SOURCE: Heater not blowing, No digital

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

Monster80
  • 460 Answers

SOURCE: 1986 Cadillac Deville, Fuel Data Center &

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.

Posted on Mar 30, 2009

  • 14036 Answers

SOURCE: 1993 cadillac deville dash out,

need to replace bulbs in dash.behind fuel gauge and info center.

Posted on Jun 21, 2009

  • 12 Answers

SOURCE: digital heater countrol and fuel gauge not working

i had the same problem in my 91 deville but the fuel gauge was intermittent at first, working most of the time then eventually it quit working all together, i also replaced my ignition switch thinking that was the issue but what actually happened is the fuel gauge shorted out the 16 volt supply from the bcm (body control module) which also feeds the ac and in my case the digital speedometer. your speedo probably isnt digital, but if you unplug the fuel gauge from the harness your ac gauge should come back on or vise versus unplug your ac and the fuel gauge should come back on right now im trying to locate fuel gauge. i hope this info is helpful to you, all you need to remove the gauge is 1/4 inch drive rachet and 7mm socket and a phillips screwdriver (#1) for the trim

Posted on Aug 04, 2009

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I have a 1993 cadillac deville ...and my climate control and digital fuel gauge have no activity at all ...ive check all fuses and dnt know how to check relays ...iuts a custom lowrider ...n im rebuil


I don't have a shop manual for the 93 Deville; however, the sucking sound under the dash could be a vacuum leak. Check for the place where the pink hose should be plugged onto by looking at same vintage care in used car lot or you pull it.

Jan 25, 2015 | 1993 Cadillac DeVille

1 Answer

1993 cadillac deville no lights on eletronic fuel data or eletronic climate control ,blower motor not working, i tested blower its good ,i tested #7,20 amp fuse ,good .no power to #4,10 amp fuse to b


Fuses 6-7-8-9 are powered from the ignition key switch.
Fuse 4 is powered from the RAP relay number 2 in the relay box.
RAP is for retained accessory power - its the relay that keeps power going to the radio and things after you turn the key off and before you open the door.

Jul 29, 2012 | 1993 Cadillac DeVille

1 Answer

Blower motor not working , control not lighting also fuel quit lighting


If the gauges fuse is ok, you would need to check for voltage at the connector for the cluster and data panels.
Might be a problem with the key switch but I doubt it.

Jul 05, 2012 | 1993 Cadillac DeVille

1 Answer

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 deville dash out,


need to replace bulbs in dash.behind fuel gauge and info center.

Jun 21, 2009 | 1993 Cadillac DeVille

1 Answer

Digital heater countrol and fuel gauge not working


i had the same problem in my 91 deville but the fuel gauge was intermittent at first, working most of the time then eventually it quit working all together, i also replaced my ignition switch thinking that was the issue but what actually happened is the fuel gauge shorted out the 16 volt supply from the bcm (body control module) which also feeds the ac and in my case the digital speedometer. your speedo probably isnt digital, but if you unplug the fuel gauge from the harness your ac gauge should come back on or vise versus unplug your ac and the fuel gauge should come back on right now im trying to locate fuel gauge. i hope this info is helpful to you, all you need to remove the gauge is 1/4 inch drive rachet and 7mm socket and a phillips screwdriver (#1) for the trim

May 06, 2009 | Cadillac DeVille Cars & Trucks

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

1 Answer

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


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

Jan 15, 2009 | 1993 Cadillac DeVille

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