I have 01 deville dhs


Asked by Jun 21, 2016 at 06:44 PM about the 2001 Cadillac DeVille DHS

Question type: Maintenance & Repair

I drove the car night before no problems. Now today I have
no headlights hi/lo. Dash indicators says lights are on.
Click to high beam light indicator in dash shows high
beams on but no headlights at all? I have checked fuses for
headlights and the hi and lo relays. Everything there seems
fine. Please help I'm stumped!

7 Answers


Did you check the headlight connectors, that I have seen melt and the bulbs, a bad ground to the lamps can cause a no light condition and can also cause both bulbs to burn out at the same time.


I will need to pull the headlight assblys out to check connection. All four bulbs burn out at tge sametime? Where should I look for grounding issue?


There will be a headlight ground wire on each headlight connector, so if it tests open you can either follow it back to the bolt or run new ground wires from the connector.


I did, I replaced the bulbs, but now I have more and more issues popping up. Still no headlights, but in addition, the push buttons on dash for gas lid, trunk do not work. The fob doesn't work either except to lock and unlock the car. Pushed the trunk button on fob nothing, pushed the gas lid button parking lights start flashing and horn goes off. Also in driving it when making a turn signal it blinks very fast. Electrical issues going to hell in a hand basket! Frustrated majorly. Told I could pull pos/neg post off battery and that everything should reset. Wrong! I need help!


Oh my, this sounds like a BCM going into failure or you have lost either a major power or ground supply, possibly both. Do you have access to a live data scanner?


I do not know what a bcm is and no I don't have a data scanner.


BCM body control module, controls things like radio, lights, Windows, seats, power mirrors, stuff like that. At this point in time I would recommend that you get a wiring diagram of your car, at least you can do the basics of circuit checking and repairing any you find damaged. Think about buying a good scanner, one with live data and freeze frame capabilities. If you are going to work on your own vehicles you are going to need one eventually.

Your Answer

Add photo

Related Questions


Looking for a Used DeVille in your area?

CarGurus has 2,392 nationwide DeVille listings starting at $1,600.


Search Cadillac DeVille Questions

Cadillac DeVille Experts

#1 kikero
Reputation 1,870
#2 Js08016
Reputation 1,300
#3 Cynthiasmith
Reputation 1,260
View All

Related Models For Sale

Used Cadillac Eldorado"
444 listings starting at $2,950
Used Lincoln Town Car"
56 Great Deals out of 2,407 listings starting at $1,542
Used Chevrolet Impala"
942 Great Deals out of 35,534 listings starting at $795
Used Cadillac Escalade"
381 Great Deals out of 11,173 listings starting at $2,999
Used Mercedes-Benz S-Class"
180 Great Deals out of 6,603 listings starting at $2,900
Used BMW 7 Series"
208 Great Deals out of 5,859 listings starting at $2,995
Used Chevrolet Tahoe"
1,056 Great Deals out of 36,527 listings starting at $1,695

Used Cars For Sale

2004 Cadillac DeVille DHS For Sale
26 listings starting at $1,995
2003 Cadillac DeVille DHS For Sale
32 listings starting at $1,600