Originally Posted by RolesvilleMarina
Check trans light did a KOST (Key on self test)
But then you tried again and it now does NOT do a KOST?
that is odd
and this TCM is just one that you randomly grabbed and slapped in? Or was it programmed for the bus and it's engine?
I'm no guru, but is it possible if you just simply slapped in a random TCM that you have a programming issue?
This is the **** I basically did when I did my transmission swap, but my donor bus was same engine so I got away with it.
Thanks for asking...
My helper incorrectly told me the Check Trans light did come on, it doesn't.
The replacement TCM did come from a 2002 DT466E, the tcm is also labeld for a dt466. The bus is a 2000.
The good thing is that the fuse does not pop anymore but I'm afraid we will have to check the wiring next.
It would be great if I could find someone with a kent-moore breakout box so I can test both TCM's... but I guess I'll just buy lotto tickets instead.
I'm new to all this tranny troubleshooting....
I was at first thinking maybe the NSBU switch might be bad, but then I was thinking the check trans light should come on.... and it does not.