Question about 2005 Mercury Grand Marquis

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Where is the headlight control module on 2005 grand marquis located

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Your lcm is located under the steering wheel to your right its that rectangle box with a connector showing.

Posted on Jul 10, 2010

  • Gayle
    Gayle Aug 28, 2014

    If you have a 1999-2011 Mercury Marquis, Mercury Marauder, or Crown Victoria, and your headlights and or tail lights don\'t work, Ford just finally extended the warranty on your LCM (Lighting Control Module) for free - both parts and labor and will install a new one for free! Ford has extended the warranty to 15yrs/250,000. Must be done at Ford and the fix is free. Call your local Ford Dealer and tell them you need to make an appointment because your lights don\'t work and Ford has extended your warranty on the LCM. Tell them it is the Customer Satisfaction Program 14N01. Have your Vin number ready as they will ask for it. If they act ****** ask to talk to the manager or tell them to call Ford Motor Company and ask them or you can call Ford yourself. We just had ours done on 8-12-14 in Scottsdale, AZ. If you have a 99 you better get there before Oct. 14th, 2014 as it is a 15 year warranty.

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Posted on Jan 02, 2017

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SOURCE: how do I change out the Headlight/ Lighting

u can do it your self the lcm is a stand alone unit just unscrew dissconnect and reconnect and screw

Posted on Jul 10, 2010

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1 Answer

2005 merc grand marquis Headlights keep blowing a fuse


Does your Grand Marquis have head lamps with auto lamps ? Which fuse keeps blowing ? Could be a shorted LCM - lighting control module ?

Lighting Control Module (LCM)
The LCM eliminates the electronic interference and heat associated with the thermoelectric devices used previously. The LCM is a microprocessor-based module that controls several vehicle subsystems. It responds to electrical input signals from various switches, sensors, and external modules..

Visual Inspection Chart Mechanical Electrical
  • Headlamp switch
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1 Answer

2005 mercury grand marquis driver air bag circut open after replacing airbag,clock spring,and control module


You need to have the system checked for what the fault code is...are you sure it's the drivers side air bag or the drivers side, side air bag(located in the seat back?)They're could be a problem with the wiring under the seat.

May 12, 2014 | 2005 Mercury Grand Marquis

1 Answer

1998 mercury grand marquis headlights


There's a l.c.m located by the gas pedal, just above it over the plastic cover.when this happens, slightly tap the module. If light come on then you need a new l.c.m (lighting control module)...very common concern eith this vehicle, unfortunately not cheap

Apr 15, 2014 | 1998 Mercury Grand Marquis

2 Answers

How do you replace the Headlight control module on Mercury Grand Marquis


The lcm is mounted in the same location in all crown vics. It's under the dash, above the gas pedal in between the climate controls and steering column. If you're having trouble locating it, engage the hazard flashers and listen to where the source of the clicking sound is coming from. You can also place your keys in the ignition and open the drivers door and track down the module by listening to where the warning buzzer tone is coming from.
REMOVAL AND INSTALLATION
  1. Open hood. Disconnect battery ground cable .
  2. Locate lighting control module above accelerator pedal.
  3. Disconnect bottom two electrical connectors from lighting control module.
  4. Remove two screws retaining LCM to bracket and unclip from bracket.
  5. Remove lighting control module from bracket and disconnect remaining electrical connector.
  6. To install, reverse Removal procedure. Check lighting control module for proper operation.
We do Repair and Exchange LCM's with Lifetime Warranty.
Go to ModuleRepairPro dot com

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1 Answer

Flasher relay in a 98 mercury grand marquis?


The fuse block the relay is located in is behind the knee bolster, the trim panel under the steering column, left of the steering column underneath the dash. Common source of problems if that does not fix it is the Light Control Module ( LCM), turn signal switch unit, headlight switch.

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1 Answer

My head lights just went off and on several times. It did it again tonight.


The lighting control module is the likely culprit. It's located under the dash just to the left of the ashtray on the driver's side. 3-7mm screws and two plastic tabs hold it in (two plugs). It controls the headlights (which are also independently fused #23 & 24), turn signals, interior dome light... Have the turn signals been flashing erratically or the dome light not dimming or coming on? They are also signs of a bad module. I hope I've helped. If so please rate my assistance. Thank you and Happy Holidays.

Dec 19, 2010 | 2005 Mercury Grand Marquis

3 Answers

How do I change out the Headlight/ Lighting Control Module on my 2005 Mercury Grand Marquis


u can do it your self the lcm is a stand alone unit just unscrew dissconnect and reconnect and screw

Mar 22, 2010 | 2005 Mercury Grand Marquis

7 Answers

Headlights cut out after being on 10 to 15 minutes


I had the same exact problem. I found that I could make the lights come on by pushing on the top connector on the front side of the lighting control module (LCM). I pulled the connector off, cleaned it and put it back together with some dielectric grease. Only time will tell if I fixed it. On my car, it would only have problems after the headlights had been on for about 3 hours; kind of hard to re-create.

Oct 02, 2008 | 2003 Mercury Grand Marquis

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