it is called lights control module box.It is under the sterling wheel.
where dose daytime running lamp module go on92 mercury grand marquis need to replace one
where is the running light sensor on a 2003 grand marque
In the 2005 Mercury Grand Marquis, the light control module is typically located behind the dashboard, near the steering column. It can be accessed by removing the lower dash panel on the driver's side. If you're troubleshooting or replacing it, ensure the vehicle's battery is disconnected for safety.
I have a 1998 ford grand Marquis- and the problem is the air suspension light stays on- how to fix this problem
lights on at all times
Have the codes read.
Why ? Just replace it.
Fuse, loose connection, or the light switch. how do you remove the dashboard on a 94 mercury grand marque?
You won't know until you get the code read.
check the bottom of the steering column
assuming you mean the light bulbs, see the answer to "how do you change turn signal lamps both front and rear on a 96 mercury grand marquis" right here in WikiAnswers.
The repair section on autozone.com explains how to change the light switch.