Mercury Grand Marquis electrical problem
Asked by zulater350 May 11, 2015 at 02:16 PM about the 2008 Mercury Grand Marquis LS
Question type: Maintenance & Repair
My 2008 Grand Marquis has a strange
problem. The tire pressure sensor is
indicating a fault with the system at the
same time the door lights when open do not
work, the key fob to open the doors does
not work, the drivers key pad does not work,
the mirror and rear window heat doesn't
work, and the heater panel back lights are
full bright.
6 Answers
this is caused by the wires broke in the driver side door happen on my y 2010 ls they have a lot of trouble with this open your door and see if things work wires will some time go back together is so you see the problem
your DIC will read TIRE MINOTOR FAULT OPEN DRIVER DOOR AND SEE IF FOBS WORK
Had the EXACT same symptoms. My problem was a bad Driver Door Module (DDM). It had power going in, (so not a broken wire) but no power coming out, Replaced and fixed all problems.
There are three plain green wires come together into one green wire is broke off inside the black rubber cover by the driver door hinges. It's happen on my 2009 Grand Marquis, so I had to add the wire to replace two broken wires to make the power door, mirrors, rear defroster, and dome lights working again.
Explain some more about this green wire inside
it is a ground wire separate and fix it in the door loom
