My tail lights not working but my headlights and break lights are. 1999 grand marquis
I checked all of my fuses and bulbs and wires
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.
Where is the LCM
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.
Why don't my brake light work on a 2005 Grand Marquis
Headlight switch is bad 60 $ at parts store 20 min fix. Easy
I have a 2005 Grand Marquis Mercury I don't know why my tail lights won't work
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?
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?