terminate can bus without an e38/ecm present

[GMPX]

I think I read correctly that for a period of time EFI Live was not allowing full OS flashes on the 6l80/T43 but that with the latest versions of 7.5 that is now possible again?

v7.5 does not do full TCM flashes, however you can do full TCM flashes for the T43 in version 8.

Cheers,
Ross

[whypave]

Thank you. I have 8.0 installed as well and just updated it to the latest patch on the EFILive site a few days ago. So what would I use as the base tune to get over to a Corvette t43 OS so I can do TUTD without a BCM? Would the 2008 corvette stock tune from here work?
http://www.holdencrazy.com/EFILive/stockTunes.php

Thanks!

v7.5 does not do full TCM flashes, however you can do full TCM flashes for the T43 in version 8.

Cheers,
Ross

[whypave]

So as best as I can tell here is how to create a bench harness that consists of just an OBD II connector and a T43 connector

Pin 4 and 5 on the OBD II go to ground and pin 2 and 5 on the T43
Pin 16 on the OBD II and 4, 9 and 12 on the T43 should be a plus 12 volt signal. this "starts" the trans so make it switchable
Pin 6 on the OBD II is Can Hi so that goes to Pin 14 on the T43
Pin 14 on the OBD II is Can Low so that goes to pin 13 on the T43
pin 10 and 11 on the T43 need a 120ohm 1/2 watt resistor wired across them

I would have loved to have this information when working on this issue so I figured I would share it.