Question about 2003 Mercury Grand Marquis

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Headlights work intermitently

The headlights will go on when I do a remote start, but if I switch to Manual on the lights go out. I have 2004 Mercury Grand Marquis. I have replaced the headlights and the headlight switch.

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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. If they act stupid 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.

Posted on Aug 15, 2014

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HI,Inspect the #27 fuse holder of the Central Junction Box (CJB) for a questionable contact issue with the male spade of the fuse, which may cause intermittent loss of contact.if ok sounds like you need lcm= light control module.

Posted on Sep 30, 2009

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CROWNVIC.NET


check for loose wires/connections/terminals. if the lights are activated by a sensor, like one that activates at a certain amount of outside lighting, go get those sensors checked out.

Oct 20, 2012 | 2004 Mercury Grand Marquis

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Headlights don't work unless you hold high beams


Check the headlight Relay and/or fuses - should be in the fuse panel.
GL,
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I have a 2004 Mercury Grand Marquis. The headlights randomly switch off, while the parking lights remain on. The fuses look good.


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2004 Grand Marquis headlight issue


The 2004 GM has a lighting control module that may be defective.

Mar 06, 2017 | 2004 Mercury Grand Marquis

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Headlights constantly go on and off, all other lights stay on my 2003 mercury grand marquis. where are the relays located?


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Check with your mercury dealer for a headlight switch recall.

Jul 20, 2009 | 2004 Mercury Grand Marquis

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