Question about 2003 Mercury Grand Marquis
Just had my 2004 Grand Marquis HL fixed. They would go off after less then 5 mins and then come back on in less than 5 mins. Then repeat. ONLY The high beam Hold switch would work. It was the LCM (Light Control Module) found behind the Glove Box. $700 for the Dealer to fix.
15 Min job for anyone who can figure out
how to remove the Module.
Posted on Sep 16, 2010
I have 2004 grand marquis where the air condintion work in my car but it will not switch over to heat
Posted on Oct 04, 2010
I have the same problem on my 2005 grand marquis try to tap or kick the lcm its is a little black box the makes the noise when you turn on your signal lights or have the drivers door open...and your lights should come on for at least 20 to 30 min then after that you have to wait like 10min to turn lights back on.try it trust me i have to do it all the time but i have to hit really hard with a bat lol because mine has been not workin properly for about 6 months now and its expensive to fix so do it the ghetto way
Posted on Feb 01, 2010
I know it's a completely different make, but on my Audi (and on a few
other cars that I've seen), that is a symptom of a failed headlight
switch. You may simply need to replace it with a new one (or one from
a salvage yard). They're usually not terribly expensive nor all that
difficult to install, and if you have some basic tools and a little
mechanical know-how you'll probably be able to swap it in your driveway
without much trouble at all.
I can't promise that Mercury is the same as the other cars I've seen like this, but many cars that I've seen (from German to American to Japanese) all end up needing a new light switch when this kind of problem happens.
Posted on Aug 30, 2008
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Posted on Jan 02, 2017
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