The lock and unlock switch for the doors unlocks the trunk too.Push the switch to the left and hold it.
flip the lock switch to unlock....
I had the same problem... I had to replace the battery in my remote at the dealer... hope this helps
The best two possibilities I can give you is the push buttons on the switch assembly are dirty or corroded. Doesn't take much to keep them from working. Get another switch from a salvage and try it. Other than that, the door lock motors are probably bad.
If you can not unlock them with a key, you will have to call a locksmith.
There could be many reasons why the 1993 Grand Marquis make noises when the doors lock. The wiring could be off, or the motor could be going out.
For ALL doors - you'll find the relay inside of the driver's door - it should be under the controls. Each door also has one that controls only that particular door. Hope this helps.
Have you replaced the battery in the fob?
Turn the ignition switch off and on off and on until the doors lock.Press the lock button on your entry switch then press the unlock button.If the doors unlock, it is programed.If not do the process over It will finally work
Yes, IMMEDIATELY within 3 seconds after punching in your code, hit the 5 on your pad and your trunk will pop open. also if you immediately hit the 4 the other three doors will unlock.
Press the " U " on the lock/unlock switch located on either the driver or passenger door.
if some doors are not unlocking, i would test the door lock master switch you migh also check that the master switch is not locked fords have a lock/unlock swith on the switch panel to stop all other doors working easy way to test master control switch is to remove switch from door,and disconect the wire plug in. use a jumber wire to cross the terminals to each door from power supply if the switch is bad,each door will unlock when crossed. so if doors will unlock this way, replace switch other than that the only other problem i have found is the actuators inside the doords. these are a pain to replace and are not cheap as each door has one. try the switch first