One way would be to take the VIN number to a Ford dealer, they would be able to tell.
Keyless entry will have a keypad built into the driver's door handle.
On a 1996 Mercury Villager, the keyless entry code is typically found on a small sticker located inside the driver's side door frame. You may need to open the driver's side door and look for the sticker on the B-pillar or near the latch area. If the code is not there, it may also be found in the owner's manual or by contacting a Ford dealership for assistance.
Villagers can have keyless entry, either from the wireless fob, or a 5 key entry pad on the driver's side door. Both require programing from inside the car by following the owners manual, as it requires several steps requiring the ignition key and other operations to involved to list here.
the keyless entry code is inside the cover in the back where the rear windshield washer container is
its on a little card in the glove box
Each vehicle with keyless entry has its own factory code
the batterys in your keyless remote may need to be changed
The programming button for the 1997 Mercury Villager is typically located on the driver's side, near the driver's door or under the dashboard. It may also be found on the keyless entry module, which can be accessed by removing a panel near the steering column or the driver's side footwell. If you have the owner’s manual, it can provide specific details on its exact location.
Ford / Lincoln / Mercury vehicles and some older Nissans.
its in the trunk on a sticker or under the hood or inside the door
thats my question to you