If all the door locks are not working it is very possible it is just a fuse.
1999 ford explorer electric door locks not working.
This allows you to lock and unlock your vehicle doors without actually inserting the key into the door handle.
Average repair cost is 120 at 119 400 miles.
Have a ford explorer 1999 the power door lock are not working for the driver side the passenger only locks and the back answered by a verified ford mechanic.
I really doubt all power door lock actuators would go bad at the same time.
The fuse is.
I have a 1999 ford explorer the high beams do not work and the dirvers side lock button does not work.
I have swapped the switch with the passenger side and still nothing.
18 drivers unlock relay all unlock relay all lock relay 25amp fuse color is natural located in the central junction fuse box on the drivers side your dash.
The power locks work good.
However you can still set off the alarm while attempting to open the power.
The 1999 ford explorer has 13 problems reported for door locks do not work.
Many ford vehicles also provide an open trunk feature.