Not entirely sure why, but 1995 was ODB1 and 1996-on is ODB 2. Different Engine management systems entirely. OD on the ODB2 is handled by the engine computer. It may be that the 1995 computer doesn't work with the newer style (electronically at least) transmission.

My name is Richard. I was a Contouraholic. NOW: '02 Mazda B3000 Dual Sport, Black BEFORE: '99 Contour SE Sport Duratec ATX Spruce Green PIAA 510's, Foglight MOD, K&N Drop-in