cant read 2006 lbz allison tcm

[mrrattle]

I have had two occurences now of not being able to read the lbz/lmm allison tcm. one unit is a medium duty the other a regular silverado.

Check status returns normal information.

when try to read the tcm efilive gets stuck at
initializing tcm,

status bar never moves, two leds on right of v2 interface a blinking

I have let sit for just over 5 minutes, hit the stop button
and get the normal message of data transfer interupted.

after several attempts the tcm data corrupts and efilive reports missing calibration. (have to reload using tech2)

I have the december 31 bbl updates installed.

any ideas?

[Cougar281]

I just discovered the same thing (Except I didn't corrupt the TCM.... I don't think). Neither the Dec 19 or 31 FW works with the 06+ TCM, and the Dec 31 does not work with the 01-05 TCM. Kept bombing out in the middle of the read (usually between 1 and 2 minutes).

[GMPX]

I'll check this when I get back on Monday, I don't think Paul has a 6spd Alli TCM to test with.

Cheers,
Ross

[M_Minnick]

Any update on this? I am still unable to read my LMM TCM even after the latest firmware update.

Mike

[Brayden]

Need one? Email me and I'll get it going your way.. Or I can try to test this to see what's going on.

Brayden

[mrrattle]

latest firmware now works for 2005 and older but still no go with lbz/lmm tcm.

07:51:28.421: Request GM VIN...
07:51:28.625: VIN: if you need the vin let me know
07:51:29.640: Preparing TCM for reading flash...
07:51:29.687: TCM not secured
07:51:29.703: Initializing TCM...
07:52:03.812: Stopping, please wait...
07:52:06.906: Total time: 00:35
07:52:06.906: Rebooting TCM... (please wait up to 8 seconds)
07:52:08.078: TCM has booted successfully...
07:52:09.093: Clear emisison related DTCs...
07:52:09.140: Clear DTCs for all modules...
07:52:11.312: CAN-VPW Bridge Actived
07:52:11.359: Current protocol set to: "ISO 15765 CAN"
07:52:11.453: Interface firmware version: 2.5.15
07:52:12.843: Disconnecting ...
07:52:12.906: CAN-VPW Bridge Deactived
07:52:12.921: Disconnected
07:52:17.375: Done!

at 07:51:29.703: Initializing TCM flashscan will sit there until i hit stop button.

[mrrattle]

any update on this? still cant access any of the 6 speed allison trans controllers 2006 through 2008. everything elses seems ok.

[jay p]

update on this???

[GMPX]

Very sorry guys, I currently don't have a V2 with BBL installed here, it is working ok with the older non BBL firmware. I'll get Paul to get one to me ASAP.
Again, sorry I let this slip by.

Cheers,
Ross

[GMPX]

quick update, found another V2, upgraded it to BBL, and I have the exact same TCM read issue as you guys are having.
I'll send the details to Paul.

Cheers,
Ross

[Blacky]

I have reproduced the problem here and a fix has been made to the beta firmware. It is being tested now...

Regards
Paul

[bobo]

Awesome. I had this issue the other day while trying to read a 07 classic TCM at the dyno.

[mrrattle]

any update on how the firmware update went? is it available for download?

I need to adjust a couple units for larger tires and it appears i have to adjust both trans and engine controllers.

[GMPX]

Unfortunately Paul does not have a TCM in NZ, I will need to send mine over to him to work the issue out. We tried over the last few days to do it via Email etc but it's just not happening, sorry.

Cheers,
Ross

[mrrattle]

if in the future you need test modules let me know, i can get fully functional used units for very low cost