Could be the electric lock solenoid, or the electric lock mechanism itself.
On a 1998 Ford Explorer , fuse # 18 , 25 amp , is for the drivers unlock relay , all unlock relay , and all lock relay
It is the 30amp circut breaker on the right side of the fuse box under the steering column
need to know if vehicle is all electric , if so try replacing the fuse that opereates the locking mechanism
Door lock fuse is the same as the interior light fuse its a 10amp fuse
The power lock fuse for your Town and Country Van can be found in the fuse box. The power lock fuse will be in the second column, fourth from the top.
The power lock fuse for a Ford F150 is number 19. This fuse is located in the central junction fuse box.
The power door lock fuse can be found in the fuse box. The fuse box is in the engine compartment behind the battery box. The location of the power door lock fuse will be listed on the inside cover of the fuse box.
The Kia electric door mirror fuse can be found in the fuse box. The electric door mirror fuse will be at the bottom of the first column.
Check the fuse, if power lock fuse is burnt, replace it.
The 2005 Ford Focus power lock fuse can be found in the fuse box. The fuse box is located in the engine compartment. The location of the fuse will be listed on the inside cover of the fuse box.
The door lock fuse on a 1997 Toyota Rav4 is located in the cabin fuse box. The fuse is rated at 30 AMPS and is labeled as PWR.