I suspect the switch on the driver s side rear door.
Mercury grand marquis door panel removal.
Remove all screws to door panel.
Superbob take a look on the forward edge of the trim panel near where the wires come from the dash there should be a fourth screw in this area.
You will now have access to window motor.
Pry off the bezel with a flat blade screwdriver.
Pry off the two trim covers on the pull handle.
Ford crown victoria mercury grand marquis.
How to replace inside door handle 98 02 mercury grand marquis.
You may have to solder off old wiring.
Then take large flat tip screwdriver and gently pry directly next to plastic studs holding panel on to door.
Lift door panel off.
Remove all screws to door panel.
Remove the phillips head screws from the window switch harness.
Door panel removal.
Seen only 3 screws removed them also i poped out answered by a verified mercury mechanic.
You may have to solder off old wiring.
2004 mercury grand marquis the interior lights are staying on and the auto door locks do not engage when putting the car in gear.
Click show more below for the tools used to make this video here we show you how to remove the grand marquis and crown vic rear passenger door door panel.
Pry out on the switch with a flat blade screwdriver.
You will now have access to window motor.
Remove the lock and window controls.
How to remove door panel driver side front on a 06 grand marquis.
Removing the door panel 1 03 pry up the switch panel with a flat blade screwdriver.
Remove the lock and window controls.
Lift door panel off.
Remove plastic out of the way.
Then take large flat tip screwdriver and gently pry directly next to plastic studs holding panel on to door.