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