I need to know,
How do I disable the TCC and have All gears.
Any ideas.

What wire controls the TCC?
Pin # on ECM?
A-f on auto tran sol?
This is for Diagnostic testing only.

Well here'* the description & purpose of the TCC for starters.
http://www.bonnevilleattitude.com/fo...e184b482b2045b

With the 4T60-E I heard that ya dont want to unplug the TCC because it will cause it to only shift into first and reverse. Just what I heard

Thanks Death Rat that is good info.
After reading it looks to me that the TCC will not engage
In D but only in OD. Is this true?

I finely got a 39 code after a year of my car missing
under load.

If the TCC is not engaged in D and my car is missing
(which it does) I am assuming the TCC is not at fault.
Unless the TCC is not disengaging or is engaging in D.
I don’t think this is the case.

A scan tool showed it was working about a half a year ago.
To bad I don’t have one know.
I guess I could look at pin f ALDL

Well anyway.
Wouldn’t this cause a lot of problems (stress) with the TCC engaged in OD?
I have done a lot of cruising and when in OD
The missing was bad enough (I think) it messed up the TCC lock.
ECM transaxle abuse.
Also I am trying to find out more about the PWM.
Oh well I still working on this.
This is a good site to look at
http://autorepair.about.com/library/.../aa061701l.htm