Attempting to program TCM with Tech2. Calibrations out of date

06DDLBZ

New member
Mar 13, 2017
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Hello

I apologize if this is in the wrong section.

I am attempting to program and new TCM off rock auto on my 06 LBZ. I ordered a tech2 clone and cracked it. When trying to program the TCM I get this error message

“E2906: calibrations marked with an asterisk are not recognized by this tis2000 release. They are either new than what is available on this TIS2000 release or they are non GM calibrations.”

The current calibration says *24256865 in the right upper box in the SPS window.


The options I am given are: 15832780 and 15938639 both has red circles and I cannot click in them. Below them are 25809621 and 25774904. When I check either of these boxes and click next that’s when I get the error message.


The only thing I can think is that I need go ahead and get GlobalTIS because I need calibration files that are up to date?

I sure thought with it being a 2006 that tis2000 would have worked.
 

TheBac

Why do I keep doing this?
Staff member
Apr 19, 2008
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Moved over to Tuning section. Im not sure Mike is really into the tuning side of things.
 

DAVe3283

Heavy & Slow
Sep 3, 2009
3,727
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Boise, ID, USA
It sounds like your cracked version of TIS2000 has problems. You can download and try a copy from a different location, or you can use the real TIS2Web in passthrough mode. It's $40 per VIN to flash any/all modules for 2 years.

I have a clone Tech 2, and it seems to work fine with TIS2Web.
 

rcr1978

Active member
Apr 1, 2007
790
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Spring Creek, NV
I'm pretty sure any newer A46, T14A TCM has to be done with TIS pass through on the Tech2 since all the old cals are for the A40 witch will leave you with a dead TCM.
 

2004LB7

Well-known member
Dec 15, 2010
6,987
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Norcal
From this thread: https://forum.efilive.com/showthread.php?27523-A50-T14-confusion

(Rcr you may have seen this one before as you are part of that thread)

"A41 is not for GM pickups or MD trucks, forget it.

T14A (GM serv #24256864 on sticker, part #24256671 and T14A on the case) is Delco branded version of Allison A46 (part # 29546675 and ATA4601 on case). they are the same hardware.

T14 (GM serv #24256861 on sticker, part #24256670 and T14 on case) is Delco version of Allison A50 (serv #25978353, part #29545535).

T14 is to A50 what T14A is to A40 -- sort of. there are some differences that are part of the boot level. SPS does not write to that, it only writes the OS and trans cal segments.

when you flash an 06-08 GM pickup with SPS you must select the TCM type (list of part/service #s that just determine if it's T14A/A46 HW or A40). the cal segment for 08 will be the same 24257976. the OS will be different 29541751 (A40), 24256580 (A46). cross flashing will brick. you will find similar pattern when selecting A50 vs T14 for 09-10 pickup -- same trans cal, different OS.

you cannot SPS an A50 selection into a T14, it will brick. generally you cannot flash a file you read out of an A50 with EFIlive into a T14, it will brick. just as flashing A40 OS and cal into an A46 will brick. in some cases i can recover them.

for some strange reason for 2011+ GM pickups the same GM flash works in A50 and T14 (at least that used to be case, they may have made some "improvements"). i haven't figured out yet why that is, i don't have any A50s left to test stuff on and generally have no reason to use them.

there are a couple of problems specific to SPS and MD trucks. GM never updated their MD Allison A40 and A50 software for T14A and T14. there IS no MD calibration in SPS for the new controllers. and there is no TCM hardware selection screen. so people install a new T14A in their 08 MD trucks figuring GM says it's a replacement for an A40 and flash it for an 08 MD VIN... brick. SPS a T14 in 09 MD truck... brick.

what's worse, SPS also bricks an A50 when flashing for an 09 MD truck (that's an error with SPS, it's not a problem with the controller). A40s flash OK for 06-08 MD VINs. but as far as EFIlive is concerned, as long as one flashes only what was read out of a TCM with the same HW, there is no problem. there is no fundamental flaw in the T14 or T14A TCMs. the fundamental flaw is GM's support and documentation"

Hope this helps
 

rcr1978

Active member
Apr 1, 2007
790
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28
Spring Creek, NV
Yup I've had my go with the T14A's :D I've been trying to flash a new T14A with SPS using pass through on a Tech2 but AcDelco's server has been a real joke lately it has some issues.
 

06DDLBZ

New member
Mar 13, 2017
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Thanks for your responses. I think I am understanding this correctly. My
Only route is to return the TCM to rock auto and find a used a40?
 

rcr1978

Active member
Apr 1, 2007
790
26
28
Spring Creek, NV
I tried to flash a new T14A today with a Tech2 using SPS pass through, it said it was 30+ min flash well it made it 15min into it and failed now have another doorstop. Might have to get a MDI to try maybe it’s faster this shit is rediculous :mad:
 

06DDLBZ

New member
Mar 13, 2017
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I can’t find an A40 anywhere. This son of a bitch on eBay sold me an A40 and it was a T14a. He took eight days to ship then send that. Highly frustrated. Truck is just sitting. I guess I’ll call the dealer tommrow and see if they sell the A40.
 

06DDLBZ

New member
Mar 13, 2017
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Is it possible for the dealer to program a t14a for an LBZ? Or do I have to find an old A40?
 

juddski88

Freedom Diesel
Jul 1, 2008
4,656
120
63
Chesterfield, Mass.
Decided to resurface this thread to ask if anyone has tried and had good or bad experiences with the Cardone Reman service for the 6-speed TCMs. (a50/t14) Through RockAuto the service lists for $254.79 and is warrantied. I've had a few bad experiences with different types of non-reman control modules though them, but the recent shortage of these TCMs has me looking for a decent alternative to get people back on the road quickly.