My tail lights not working but my headlights and break lights are. 1999 grand marquis

Asked by Mar 27, 2015 at 08:38 PM about the 1999 Mercury Grand Marquis 4 Dr GS Sedan

Question type: Maintenance & Repair

I checked all of my fuses and bulbs and wires

10 Answers

2,945

It's probably your Lighting Control Module LCM. Factory recall should have been done, Ford will pay for some repairs. Get a rebuilt one from EBAY.

7 people found this helpful.
120

Where is the LCM

12 people found this helpful.
2,945

It's under the dash, above the streeing column. Kinda hard to get at. Try Googling it. I paid someone to do it because of my neck.

5 people found this helpful.
100

Why don't my brake light work on a 2005 Grand Marquis

10 people found this helpful.
40

Headlight switch is bad 60 $ at parts store 20 min fix. Easy

4 people found this helpful.
120

I have a 2005 Grand Marquis Mercury I don't know why my tail lights won't work

12 people found this helpful.
2,945

Bad bulbs, blown fuse, bad ground at the bulbs, bad headlight switch, bad Lighting Control Module, Those are the posibilites, check the bulbs and look for corrosion first, as well as fuse.

I have a 2005 grandmarquis presidentual model all of my lights work except my tail lights what would cause that i have already had the light control modul e replaced and the bulbs and wiring are good could it be the lighting control on th left of the steering wheel

I am having the same issue. Physically, everything looks good, as far as fuses and wiring. I have not tried the switch. How would you go about checking that, or do you just have to buy a new one and see if it works?

2,945

Replace the tail light bulbs, make sure the sockets aren't corroded, check for grounding of the sockets, I don't think they rely on ground from contacting the body, must be a wire that grounds to the body somewhere. Grounds can get ya! Do the brake lights work?

Your Answer:

Grand Marquis

Looking for a Used Grand Marquis in your area?

CarGurus has 9 nationwide Grand Marquis listings and the tools to find you a great deal.

Postal Code:

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
    Reputation
    7,540
  • #2
    Js08016
    Reputation
    3,010
  • #3
    Trippmeister
    Reputation
    2,760
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Lincoln Town Car
14 listings starting at $2,495
Used Chevrolet Impala
45 Great Deals out of 928 listings starting at $1,995
Used Ford F-150
287 Great Deals out of 13,453 listings starting at $1,700
Used Chevrolet Tahoe
29 Great Deals out of 824 listings starting at $3,500
Used Lincoln Continental
28 listings starting at $36,999
Used Ford Taurus
21 Great Deals out of 385 listings starting at $2,521
Used Honda Accord
50 Great Deals out of 1,939 listings starting at $1,995
Used Toyota Camry
87 Great Deals out of 1,644 listings starting at $3,799
Used Chevrolet Silverado 1500
130 Great Deals out of 11,168 listings starting at $3,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.