A short circuit. Look through your connections to your 'lights' and make sure there are no short circuits. If you want to know about short circuits see related links below.
A bad ground wire will cause dim headlights, or will cause lights not to work.
yes
If they both have the same engine.
Faulty ground to the dash.
it will fit properly if you sawp out the headlights and front bumper from a 87-89
fddd
Yes
Answer On the passenger side behind the kick panel....
Electronics FailureMost likely you have a short somewhere in the dashboard electronics and the bad part is you will probably never find it.
try checking the gasket around the intake that should fix it
Curse of the Blue Lights - 1988 is rated/received certificates of: USA:R
where is the fuse for tail lights in 1988 mercury grand marquis