remove the rear tail light housings and check to make sure that one of the wires is not crimped by the housing (this happens alot on these cars if it simple repair the wire and make sure not to crimp it when re installing the housing if it's not at the housing you'll need to check the wire all the way from the front to the back (this requires removing the seats and the carpet ) your looking for any spots that are showing bare wire and in some cases flat spots on the wire (it's a common problem because the wiring harness doesn't clear the tail lamp assembly when changing blown bulbs and more often then not the wires get crimped
Thousands of things. Take it to a mechanic who has a scanner and they can tell you what the problem is.
I have a 1998 ford grand Marquis- and the problem is the air suspension light stays on- how to fix this problem
How. Do reset airbag light on a 1993 grand marquis
If Its an older Grand Marquis its easy. Find the knob that you pull out to turn on the headlights. Now, just turn it clockwise and the light will turn off!
Have the codes read.
where dose daytime running lamp module go on92 mercury grand marquis need to replace one
Why ? Just replace it.
It means your engine needs attention.
lights on at all times
where is the running light sensor on a 2003 grand marque
Have vehicle scanned to determine the problem
check your fuses