Go to a Ford dealer parts department and request the part number and diagram of the part location. I did this for my 2004 Grand Marquis. It is located on the lower right center of the dash panel on the 2004 Grand Marquis. Try this link http://car.justanswer.com/uploads/Auto TechInSTL/2007-07-16_213138_sc2.gif.
GO to eBay > eBay Motors > place search : For "2004 mercury Grand Marquis Lighting Control Module" , Bunch of listings show up , choose the Lighting Control Module picture that is in WHITE NEW BOX , full instruction ,Where is located ?, step by step removal instruction is all there. The company is ELECTRONICS REMANUFACTURING SERVICE.
where is the ignition control module located on mercury marquis
You need to Replace The Lighting Control Module (LCM). This is not a cheap part, but a common one to fail.
Behind metal plate on lower dash right above where your right knee would be when sitting in drivers seat
Where is the lighting control module located on a 1999 Lincoln town car
It's integrated into the LCM (Lighting Control Module), located under the dash just below and to the right of the steering wheel. They are pricey.
lighting control module
lighting control module
The wiper control module on a 1998 Mercury Grand Marquis can be found behind the instrument panel. It is close to the steering column, on the right side.
Flasher functions are part of the lighting module, there is no separate flasher.
I purchased a lighting control module on E-bay. Pretty reasonable price but as always when buying used auto parts, buyer beware.
it is called lights control module box.It is under the sterling wheel.