Possible a bad turn signal flasher
You more than likely have a blown bulb. if the flasher was bad the left side indicator on the dash would not blink. do a quick inspection around the car with the left side on and then the right, you will notice which bulb is blown.
Hope this helps.
"85MGM"
How do you turn on dash lights 1993 mercury grand marquis
where is the fuse for tail lights in 1988 mercury grand marquis
The button for the hazard lights is on top of the steering wheel column , the switch is part of the multi-function switch inside the steering column cover
Turn on headlights/parking lights and adjust dimmer control
where you turn on the headlights ... push the button
It is a module under the dash.
dash lights and tail lights cut out
There is a lights control box under your steering wheel.
94 mercury grand marque dashboard, hazard, and tail lights do not work?
behind the steering wheel on the top or bottom, not sure, there is a little tab you pull out
Mercury Grand Marquis for one and I am sure there are others that I am not familiar with
change the brake lights check the fuse check the brake light swtch