The 1996 Mercury Sable the OBD 2 connector is under drivers dash next to kick panel
( fuse # 21 ) is a 20 amp fuse for the cigarette lighter on a 1996 Mercury Sable
It was the starter
Check the fuse
On a Mercury Sable : firewall 1-----2-----3 4-----5-----6 front of vehicle > driver
The most common cause for a 1996 Mercury Sable not starting is a dead battery. The second most common cause for the automobile not to start is a lack of fuel.
It is printed on the computer which is normally under the kick panel or mounted against the rear seat in the trunk.
The engine computer is the ignition module.