Last post on Aug 20, 2013 at 9:46 AM
You are in the Ford Crown Victoria/Mercury Grand Marquis
What is this discussion about?
Ford Crown Victoria, Mercury Grand Marquis, Lights, Electrical, Sedan
Mar 15, 2012 (1:13 pm)
Does the Lighting Control Module (LCM) effect the a/c fan operation and/or is it tied to the same relay as the LCM? I have an '03 Crown Victoria and the the dome light, vanity mirror lights & overhead display don't work. The radio works but the buttons do night light up for it and the temp control buttons do not light up either nor do the ac, defrost, etc. selection buttons which means no heat or ac right now (or defrost). This is the second time this has happened. First time mechanic had it 5 days and couldn't figure it out (checked all fuses and they appeared ok). A random guy from church looked at it next and got all working other than overhead display but didn't tell me what he did. Cigerette lighter works. UGH! Any help is greatly appreciated!
Mar 26, 2012 (5:26 pm)
i have a 95 grand marquis gs i found a problem on lcm i bougth another one with same part number f5ab-13c788-ae and i cant make my head ligths to turn on or interior .do i have to reset something to make the car read the lcm that im replacing? please if u had this problem before help me get this fix .
#211 of 246 Preplexing situation
May 22, 2012 (9:51 am)
07 Grand Marquis
Door locks, rear defogger, interior light and alarm work intermittently. Checked wiring in all 4 doors nothing appears to be broken. No response when jiggled. When it rains all system work.. almost like a short of some kind but unable to locate it. I have played with the actual locking mechanism by locking and unlocking to simulate door opening / closures i did get everything working for a short time.. might have been a fluke. Can it be a computer module that works intermittent? If so what is the name of this module that controls before mentioned. Is there a home test that can be performed to single out the problem..?
#212 of 246 Re: 95 grand marquis lcm [ecoautomotive]
May 22, 2012 (9:58 am)
I just did a manual reset to my car that i believe also pertains to your yr as well.. Disconnect neg from battery. Then take the black negative cable and touch your positive side this will not short the car but it will clear the memory.. Hope this helps
#213 of 246 Re: 95 grand marquis lcm [bigrich52]
May 22, 2012 (10:18 am)
I'm with you on disconnecting the Negative terminal, but I hesitate touching the Negative cable to the Positive post on the battery. Would this "touching" cause an unwanted spark and maybe blow the dio plate in the Alternator?
#214 of 246 Re: 95 grand marquis lcm [euphonium]
May 22, 2012 (1:13 pm)
I learned this trick today at the auto shop.. Having an issue with ac control box.. Mechanic removed the wire and did just what i had stated.. nothing ill came of this except i had to reset my clock.
#215 of 246 Re: dom lights [fordgirl4]
May 26, 2012 (7:34 pm)
hello,i havent experienced the headlight problem yet,,,but i dont drive it much ,only 43,000......what is happening with my car,is the fuel pump went ot at 32,000....then it went out again at 38,000....i am still waiting for the shoe to drop on the 3rd fuel pump with only 43,000,,,,the pump is inside the fuel tank,,,a design only a moron would do.....so it is quite a job,around 600.a pop,,,my car is a 2003 marquis ls....as far as the headlights are concerned,,,,ford has always had weird electrical problems with their cars as far back as the early 1950s....the lincolns and the edsel were nightmares......selma2 ndorfin51yahoo.com
#216 of 246 Re: 2000 Grand Marquis Headlights, Parking Lights, buzzer, hazards not working [yooper88]
Jun 26, 2012 (3:28 pm)
I am having the same problem. What did you have to do to fix yours?
#217 of 246 Re: 2004 Grand Marquis Headlights/Cornering Lights [dudat]
Jul 08, 2012 (9:35 am)
I have this exact same problem my friend with my 2005 Mercury Grand Marquis GS. the lights come on when they want to and i will hear it click and come on when they finally do. Also my air does the exact same thing as yours only blows out of the top and im getting frustrated. Can you please help me and tell me what you did and replaced to get rid of these problems. Thanks
#218 of 246 Re: 2004 Grand Marquis Headlights/Cornering Lights [zeigler424]
Jul 08, 2012 (9:51 am)
mine was due to the right front fender being replaced during paint job and they failed to tighten a ground wire that attaches to the fender inside.