Scan tool won't connect to Town Car PCM

[95Vert383AOD]

I have a 1998 Towncar and am trying to connect a Innova 3140 Scan Tool.

It wont connect with an Autozone scanner either.

I've also checked all fuses under the dash and hood.

Whats wrong guys?

Thanks in advance
Chris

 

[85ragtop]

My little mac scanner won't connect with my dodge ram or ford vans. I have to use my big snap on scanner. I have no idea why it won't talk to them but it has done this since day one. Get a differant scanner and see if it works.