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Need a VIN number for BCM flash

Fixxer Automotive
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Fixxer Automotive New Member

Fixxer Automotive

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So long story short, I have a 2007.5 2500hd truck that used to be a 6.0 LY6 truck and is now a 6.6 LMM truck. After i completed the swap everything works except the cruise control due to the donor truck had a Trailer Brake Module and now that module is missing. After trying everything i can thing of to change the configuration in the BCM, I came up with the idea that if i had a VIN number that was compatible with my trucks new configuration, i could use Techline Connect to reflash my BCM and correct the configuration, then do a security relearn. Is there anyone who has a LT Extended Cab 2500hd LMM truck that doesn't have the TBCM? If so could you share your RPO sticker with me so i can use it to fix my problem? JL1 is the one that i dont want.

THanks!

IMG_20250922_184906~2.jpg

Edited by Fixxer Automotive
davester Senior Enthusiast

davester

Posted
Posted

I can't help you w that, but why not wire up the itbc stuff?

 

I expect you can get it wired up and installed faster before you find someone with all the same components as your truck EXCEPT for that one option.  And the ITBC works pretty good.

 

And from having two '12 3500's with some shared options and some different ones, just because you have the same rpo codes, does not necessarily mean you have the same components and/or code running things.  For example, my trucks have different abs controllers (made by different manufacturers w different plugs, even though they have the same rpo codes).

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