Ec-at

Here's one for you guys, hopefully. I've got a 90 MX-6, and want to fix it up. There's trouble with the tranny (G4A-EL). I have a EC-AT tester, but I don't have the owners manual or the cable interface for it. I'm hoping there's someone out there that either has this tester or has the manual for it. And a wiring diagram for the tester would be great. An answer as asap would be greatly appreciated.
Thanks: