Jump to content

Need a VIN number for BCM flash

Fixxer Automotive
 Share

Recommended Posts

Fixxer Automotive New Member

Fixxer Automotive

Posted
Posted (edited)

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).

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • 2017Z
      2020 Trailboss 6.2 replacement

      By 2017Z · Posted

      Looking for advice from this group. Took my flawless 2020 6.2 TB to an unnamed shop for routine rear brakes and oil change. Tech forgot to put oil back in after the full service and needles to say, destroyed my engine.  It’s all on their shop video so they are responsible.   I had my Chevy dealer do the analysis and they confirmed its compromised and said engine replacement. The manager said they only get GM reman engines from GM with full 3 yr warranty and the one they would put in is not same as what’s they are swapping out on 21-25 for recall.    I am looking for advice why that would be a different engine because obviously I had the good 6.2 year and replacing it has my concerns with that recall for 21-15   Also what’s the pros and cons of accepting the engine swap vs telling the shop that bricked the truck to pay up so I buy a new truck. I’m concerned about stigma resale eventually if I just decide to get rid of it after the swap or other issues showing up after the swap out.  
    • GN2018
      AFM Disabler Question

      By GN2018 · Posted

      Just looked up my records.  I've never gone over 5000 miles between oil changes.  At 46K miles, I have 10 oil changes.  I hope that will help.  I also installed the disabler last year.  I've still had a few times when it didn't seem to engage (which I can tell because the start stop feature kicks in), but for the most part, I think it's working.  For some reason, GM did not include the number of cylinders running in the information screen like I had on other models.  In my Cadillac, it shows me when it's running on 4 cylinders on the fuel milage screen.  I can't find that on my '21 Denali.
    • davester
      Wiring Help, Please

      By davester · Posted

      you might read through the info on gmupfitter.com for your truck, to find a good power source.
    • Grumpy Bear
      AFM Disabler Question

      By Grumpy Bear · Posted

      Melling I believe is/was the OEM on the lifters who explored this problem some years ago. The white paper they generated on the topic indicated two items of note when I read it. 1.) They only fail on the switch. Prevent the switch, prevent the failure. 2.) The majority fail due to deposits messing up the timing of that switch. Anyway that's what I got from it.    Mine have always been active, 195K+ now, and my oil maintenance is surgically clean.    Of course this assumes good parts. That is no heat treat issue or machining flaws. I get comfortable that these issues are in the rearview mirror by about 30K. IMHO naturally. 
    • Chuck FB
      2 speed transfer case optional now?

      By Chuck FB · Posted

      Yes, the key seems to be with the half tons that if it has the Z71, then it definitely has the two speed. What got me was that the two speed AND the lower geared towing package option could not be chosen together the last few years unless it was mated up to the 6.2. Want the 3.0 duramax and 3.73 tow gears ... nope, can't get the two speed transfer case ( neighbor son realized that after he had bought his used 3.0 half ton .. where the frick is the low range ? ! ).    I am still unsure which truck series, the half ton or the HD truck that the original poster is referring to for sure other than yes his question is in the HD section of this forum but that doesn't guarantee the question got asked in the right section.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...