TCM dead after flash

[minytrker]

On a 2009 G8, I flashed the TCM and it failed when finished. I tried several times to flash it and it would always fail. The car was undrivable and in the middle of no where. I unhooked the batt for a few mins and was able to reflash it. Im scared to reflash it again, what happen?

[joecar]

Were you able to get vehicle driving again...?

[GMPX]

Lorenz, are you using the latest release? We've had another complaint of this happening just recently.

[Black02SS]

Subscribing....

[Black02SS]

What did you change in the TCM file? Anything out of the ordinary?

[minytrker]

Were you able to get vehicle driving again...?


yes only after unhooking the batt and reflashing the TCM



Lorenz, are you using the latest release? We've had another complaint of this happening just recently.


Yes, the latest. This is also the same G8 that says contact dealer when I plug into with it runing.

[minytrker]

What did you change in the TCM file? Anything out of the ordinary?

No, just your normal basic trans tune without tq management. I was actually putting back my old tune I had in for the last couple thousand miles.

[ringram]

Upgrade your firmware as well mate. I think that issue was resolved in newer firmware. Though maybe you have done that already..

[minytrker]

Upgrade your firmware as well mate. I think that issue was resolved in newer firmware. Though maybe you have done that already..

Have the latest..........usually I update within a day or two of something new coming out.

[Chuck CoW]

So far, Ross seems to be the only person to have killed a T43 in the name of EFI LIve Tuning!:angel_innocent:

I've done evil things to T43s even including accidentally yanking the usb from the laptop in the middle of a TIS flash!

While I had a few scares, I've NEVER had one go south.

Shutting the battery off or grounding the positive bat cable (WITH THE POSITIVE CABLE DISCONNECTED FROM THE BATTERY) to the negative is all I've ever had to do.

Proceed as usual...It was likely a fluke and I wouldn't sweat it.

Chuck CoW

[minytrker]

So far, Ross seems to be the only person to have killed a T43 in the name of EFI LIve Tuning!:angel_innocent:

I've done evil things to T43s even including accidentally yanking the usb from the laptop in the middle of a TIS flash!

While I had a few scares, I've NEVER had one go south.

Shutting the battery off or grounding the positive bat cable (WITH THE POSITIVE CABLE DISCONNECTED FROM THE BATTERY) to the negative is all I've ever had to do.

Proceed as usual...It was likely a fluke and I wouldn't sweat it.

Chuck CoW

I agree, probably just a fluke. I have since flashed it several times and a few others with no problems. Still get a little nervous when doing it at the track though.

[GMPX]

So far, Ross seems to be the only person to have killed a T43 in the name of EFI LIve Tuning!:angel_innocent:
This is true Chuck, in the name of full flash them, my bootloader code was wrong, it wiped the flash 100% then crashed.......doorstop.

We had a car over here in Australia recently refuse to be flashed, we got some before and after .tun files and it looks like the write simply missed a block of data. Seems very odd that it only happens on some cars every now and then. We are still looking in to it.

Cheers,
Ross

[doubledip]

Ross, When writing to these do you remove the comms fuse in the front left hand kick panel at all?

[Blacky]

Ross, When writing to these do you remove the comms fuse in the front left hand kick panel at all?

I've never removed any fuses on a Holden when flashing the ECM (E38) or TCM (T43) and have never had a reflash problem.

I've tried hard to reproduce the T43 flashing problems that have been reported but cannot.

Regards
Paul

[doubledip]

Ok Thanks for that... I know that Holden recommend you pull the 10A fuse for the SDM so it reduces the chatter on the line before flashing.

[Blacky]

T43 reflash problem solved:
http://forum.efilive.com/showthread.php?p=110114#post110114

Regards
Paul

[ScarabEpic22]

Great to hear, know its been bugging a few people!

[joecar]

:cheers: