Thanks for the reply, I'm not 100% on your question "did your readings change to the case after the harness". Unfortunately I didn't think (bad on my part) to test inside the trans after I replaced the harness. The resistance tests were at the plug to the tranny (but on the outside). I did get a "many" ready when going from pin A to the case as you had mentioned I should. It was the A to E test that came back with just a 1. Which if I understand correctly means that it is a higher ohm than my 200k setting or something of the sort. I wasn't using a wire probe or anything of the more accurate nature either, just the 7 Function Digital Multimeter
pins. Hope that makes sense.
I guess some of my confusion (if I wasn't confused before I am now with the diagram). The first one you sent me MegaShift 4L60E
, didn't seem to match up (Under the GPIO/4L60E External Wiring Diagram) to any of the plugs that I could see going from the trans harness to the ECM. Now in the most recent diagram I don't see if this is the Red, White, Black or Blue plug from the ECM? I was looking at this pin out
which shows the 1-2 shift solenoid (which I believe is solenoid A) at pin 6 of the red ecm plug. Just not sure if that is accurate based on the other images sent. Thanks again, your help is greatly appreciated!