Trans not talking

[4g63swap]

that just it the TCU isn't talking to the trans, I tryed to manual pull codes and it has work before for me but all of a sudden it doesn't. if a fuse was tripped which one would it be? also anyother insit would be helpful.

Thanks
Chris

 

[Sbeing1]

Make sure everything is plugged in. How did you come to the conclusion that the TCU isnt communicating with the trans?

 

[4g63swap]

the tcu wont even flash a steady signal when I try to pull codes. thats my first clue.

 

[Sbeing1]

Im having the exact same problem. Any insight from anyone would be appreciated. I put a new tcu in mine and that wasnt the problem.

 

[4g63swap]

I found out that the tcu isnt getting pwr now I just have to trace the stupid # 12 pin on the tcu and find out why. and I think that something in my ecm is toast. poop


later
Chris

 

[mac 108]

Have you checked the fuse in the box under the steering wheel on the left side?