Question about 1991 Cadillac DeVille

1 Answer

Instrument cluster went blank

The digital instrument cluster for fuel data and a/c info went blank. I've checked all fuses both under dash and hood and looked for damaged or burnt wires under dash and to the headlight switch and all looks okay. What would you suggest?

Posted by on

  • icemike2 Oct 04, 2008

    1992 Cadillac DeVille - I smelled something burning and all the instrument lights went out. Found that the board in the fuel data center was the problem. Well, I replaced it and still no lights or no blower for a/c.

  • 5startranz May 12, 2009

    I have this same problem and was wondering if I replaced the entire instrument cluster would this fix the problem ? Would my A/C and fuel gauge work again ?



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

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.......

Posted on Oct 04, 2008


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

2002 T&C - the gas gauge, the blinkers, the speedometer, etc. don't work on the front panel. Which fuse might I need to replace

Nothing on the instrument cluster work's ? Warning light's - ABS , check engine , air bag etc... Only one fuse powers the instrument cluster , if these other thing's i mention work , it's not a fuse problem . Your best bet , take it to a qualified repair shop . The gas gauge an the speedometer are info sent from other modules over the PCI serial data bus , a message an info data network for all the electronic control modules on the vehicle .

Feb 26, 2018 | Cars & Trucks

1 Answer

Where does the voltage come from for the dashboard gauges grand caravan 2003. Have no gauges Checked fuses and relays all are good. Looked over wiring diagrams but looked like computers are together.

Do the light's on the instrument cluster work ? Fuse #24 - 20 amp location intergrated power module , under hood fuse box . Probably the instrument cluster it's self is bad , but without testing that would be a guess . Hooking up a factory or professional scan tool to view input's to the instrument cluster would be the proper way to diagnose. Gauge info to the Instrument come's over PCI serial data bus . A communication network for the control modules on the vehicle . Gauge info. come's from the PCM - powertrain control module. Your best bet , take it to a qualified repair shop ,dealer etc....

Oct 29, 2017 | Cars & Trucks

1 Answer

Fuse for 2002 yukon dash board

There are a four fuse's that supply B+ voltage to the instrument cluster . Three are in the left instrument panel fuse box and one is in the under hood fuse box .ING 1 fuse 10amp , ING 0 fuse 10amp and CRUISE fuse 10amp . these fuse's are in the I/P fuse box. The last one is RADIO fuse 15amp located in the under hood fuse box . What kind of problem are you having ? A gauge not working or the whole instrument cluster not working ?

Jan 01, 2017 | Cars & Trucks

2 Answers

All gauges on my f 150 quit working

If ALL of them stopped working, your instrument panel cluster is bad. Have it replaced.

May 07, 2011 | Ford F-150 Cars & Trucks

1 Answer

Desparately looking for the fuse box in my wife 2002 caravan. nI can only find the one under the hood in the engine.... dash lights went out and can't find the fuse

There is no fuse specifically for the instrument cluster illumination lights. They are controlled by the BCM.

Is it only the instrument cluster that has no illumination or do the rest of the items like the radio and heat controls also loose there illumination lighting?

Feb 28, 2011 | 2002 Dodge Caravan

1 Answer

97 Windstar: No brake, running or instrument cluster lights

Go to the given link get the service and repair manual and solve the problem

Nov 15, 2017 | 1997 Ford Windstar

4 Answers

Instrument panel went dead

Checked Every fuse in the fuse box (no small task).This includes #4 - Power point Instrument Panel, #14 - Day time running lamps (auto lamps doesn't work nor does auto lock), #27 - ignition switch run feed, #35 - Instrument Cluster, #41 - Instrument Cluster, #42 - Delayed Accessory, #45 - Ignition switch run/start feed, #102 - Door locks body security module, #103 - Ignition switch, #110 - Ignition switch, & #116 - Ignition switch. But I also check all other ones as well, they all register OK. AC panel & radio work. Turn signals work. Mileage does not work, trip computer does. So, basically, everything works except auto head-lights, auto locks, and the dash cluster (no MPH, RPM, mileage display, Fuel, Temp, Tran Temp, and Oil Pressure).

Aug 19, 2009 | 2003 Ford Excursion

1 Answer

My 2001 bmw 504i fuel , RPM gauge and dash info is dead...

If the instrument cluster is getting battery voltage, then this means that the instrument cluster needs to be replaced. Only availible at the dealer.

May 17, 2009 | 2001 BMW 5 Series

Not finding what you are looking for?
1991 Cadillac DeVille Logo

938 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cadillac Experts


Level 3 Expert

79186 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a Cadillac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides