A faulty the door lock sensor will cause the door locks to lock and unlock repeatedly. The door lock sensor is located below the dashboard on the drivers side.
Then you have to lock and unlock the doors by hand.
replace master switch for door locks
the door lock actuator is bad. it is located in the drivers door panel
why dont my 2001 windstar van lx door locks wont lock
Your 1998 F150 has 3 relays for your power door locks : an all unlock relay / a driver unlock relay / and an ALL LOCK RELAY I'm guessing that the ALL LOCK RELAY has failed I'm sorry but I haven't found the location of the power lock/unlock relays on your F150 yet ( does anyone know the location of the power door lock / unlock relays on a 1998 F150 ? )
check fuses........ rosdale joe Better ANSWER Door lock solenoid, it is what activates the levers to lock and unlock the door. You will need to remove door handle and interior door panel to get to it.
Umm, there are still manual locks. Take your finger and push the lock over and unlock the door. Good Luck!!!!
Follow in order: -remove key from steering column -close all doors -open driver door -insert key in steering lock -repeat the following 3 times in 24 secs: -turn key to on then back to lock -push driver side door switch 3 times -check that door lock and unlocks-if not wait 40 secs -if lock and unlock-push any button twice -check that door locks and unlocks-if not push driver side door switch -if lock and unlock-push any button twice -check that door locks and unlocks-if not push driver side door switch -if lock and unlock-push any button twice -check that door locks and unlocks-if not push driver switch -if lock and unlock-the end. -remote should work after this.
If it came equipped with power locks, it's possible the lock actuators seized up and it's impossible to lock/unlock them depending on which they were before they seized. My drivers rear door lock actuator seized up in my '92 Tempo GL and it was impossible to unlock, I had to remove the door panel with the door closed and just cut off the actuator stem (the part that actually makes the door lock/unlock) and then it's possible to lock/unlock the door.
2005 yukon BACK DOOR CATCH LOCK
It depends on the access technique used for the door lock - if it is a cipher lock then you need the unlock code or the magnetic card. For preset locks, you need a key.For biometric locks, you need the appropriate biometric answer, a retinal scan, fingerprint, or palm print, etc. to unlock the door.