Electrical Pin 17 voltage with EEC removed and Key On/Engine Off.

[Lunysgwen]

Stangnet,

I have voltage at pin 17 with the EEC removed, key on, engine off and I'm unsure as to why. Is this a normal state for the car? I can't seem to find where this pin should be getting voltage from in the veryuseful.com diagram, and my 1992 shop manual doesn't even indicate that it splices into any of the sensors that veryuseful indicates. Should this wire be getting 12v while the EEC is removed with Key On Engine Off?

 

[Blown88GT]

It's supposed to have voltage on that pin with ignition on. Pin-17 goes to the self test connector which he does not show on the '91-'93.
Look at the VeryUseful for '88-'91