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Ford Crown Victoria/Mercury Grand Marquis Electrical/Lighting

245 messages,  Last post on Mar 25, 2013 at 6:34 PM

You are in the Ford Crown Victoria/Mercury Grand Marquis Forum.

What is this discussion about? Ford Crown Victoria, Mercury Grand Marquis, Lights, Electrical, Sedan

Messages Page 21 of 25

#200 of 245 Headlights not staying on by happynow2

Jan 08, 2012 (1:11 pm)

I want to thank beachbob remarks. He explained rather than pay $511 for a LCM light control module quoted from my dealer 12/15/11. Replace the relay. He was correct you will have to know someone who can unsolder the old relay and replace with new relay. The relay on my 2004 grand marquis is back ordered from -Mouser in mansfield,tx. part # 551-EQI-11111S. I found a comparable one from Well Gain electronics on the internet. The part # MR301-12HSL . The relay was under $10 plus shipping all said and done for under $20. beachbob is correct. The LCM is to the right of the steering column with 3 harness jacks. The size is about 4"wide x 7"long. After you take off 2 different under dash covers it is mounted flat on a slidemount clip to a metal housing. It's fairly easy to remove. To dismount out of open metal housing I pushed the LCM box upwards till removed from metal housing. Once you have the LCM removed you will need a star screwdriver for 2 screws and also pressing inward on the side tabs. As beachbob mentioned
you will see yellowish/brown discoloration around the relay indicating which relay is the one to replace. I want to say thank you to beachbob for being a stand up guy in helping others in need. I didn't have the $511 for the LCM nor money to "code" the new LCM nor probaly $2oo more for the mechanic all in all arounr $800-900 dollars. I also want to thank Edmunds for a forum like this one.

#201 of 245 Re: Headlights not staying on [happynow2] by kirstie_h HOST

Jan 09, 2012 (11:34 am)

Replying to: happynow2 (Jan 08, 2012 1:11 pm)
Glad you were able to solve your problem much more cheaply than anticipated!
 
And we also thank beach_bob for sharing his solution. You never know what solutions might turn out to be a life (and wallet) saver for other owners.

#202 of 245 Power/fuses Problems by jigg011

Jan 23, 2012 (11:30 pm)

I have 2004 Grand Marquis! As I was putting in my remote start I ended up touch the main 12v wire(green) to the metal under the dash; ground it out. I need help founded the fuse? Also, I have a number of fuses in my control panel under the dash that is not getting power. I checked and replaced fuses but still no power!
 
What should I try next?

#203 of 245 Re: head light go 2004 crown vic. [beach_bob] by ct45

Jan 25, 2012 (9:05 am)

Replying to: beach_bob (Oct 01, 2011 4:06 am)
I have not been able to find the pictures on the LCM repair either.
 
Are they still available?

#204 of 245 Re: head light go 2004 crown vic. [beach_bob] by daveytunes

Feb 05, 2012 (12:26 am)

Replying to: beach_bob (Oct 01, 2011 4:06 am)
Many Thanx to Everyone That offered this Info about the relays. I just repaired the LCM on My Wife's 2005 Gran Marquis with about 70,000 miles on it. It has the adjustable gas pedal and had to be unplugged before it would come out around the gas pedal motor. The soldering was fairly easy, The hardest part for Me was unplugging that single connector on top. after I figured out how to get it off the rest was a piece of cake! The Dealers DID NOT get My $$$.

#205 of 245 Re: 2000 Mercury Grand Marquis electrical problems [fordgirl4] by wally21

Feb 05, 2012 (10:22 am)

Replying to: fordgirl4 (May 26, 2011 8:23 am)
Did you try taking off your driver door panel and disconnecting the keyless entry touchpad? The buttons corrode and cause the domelight to come on whenever.

#206 of 245 wiring nightmare by downtowntaxi

Feb 14, 2012 (9:33 pm)

.I have a 2004 crown victoria p71. out of no were my head lights turn signals interior lights dash rear defrost wiper motor and horn stoped working. ran scaner got dtc codes b1352 and b2498. check them out to be fine. giving head light switch clean power from an outside power sorce head lisght and parking lights light up but no turn signal. could go into further deatail but seeing if anyone has had a simular problems with there car. any help would be greatly apreciated.

#207 of 245 Re: Headlights not staying on [kirstie_h] by railroadf

Feb 17, 2012 (11:59 am)

Replying to: kirstie_h (Jan 09, 2012 11:34 am)
I am in the process of removing the LCM from an 05 Crown Vic.
I have the box hanging down but am having trouble getting the largest of the 3 harness connectors removed. Any suggestions? Also, when I disconnected the first two harnesses, the lights came on and would not turn off until I replaced the harnesses.

#208 of 245 Re: Headlights not staying on [happynow2] by railroadf

Feb 17, 2012 (12:21 pm)

Replying to: happynow2 (Jan 08, 2012 1:11 pm)
Thanks to you and beachbob. I have the box hanging down but am having difficulty getting the largest of the 3 harness connectors out. Any suggestions? Also, is the part number on the relay?

#209 of 245 LCM by jvpeach

Mar 15, 2012 (2:13 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!

Messages Page 21 of 25

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