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Thread: 2003 Auto Truck OS: 05073543AK

  1. #1

    2003 Auto Truck OS: 05073543AK

    First time looking at an 03 auto file and there is nothing under transmission or transmission diagnostics. Is this correct for this year to not have any transmission parameters? Thank you

  2. #2
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    Been covered a few times on this forum, not available for the 03. Some 04?s will have it available.

  3. #3
    Thank you Jim.

  4. #4
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    The 2003 and some 04?s the transmission controllers are separate from the ecm and are JTEC. If you got the tools and knowledge to figure it out it would be possible to do some transmission tuning on them, likely very limited tuning though.

  5. #5
    Quote Originally Posted by Sschulte16! View Post
    Thank you Jim.
    If you look on the passenger side of the firewall you'll see where the JTEC is mounted. It can be tuned, the tables are there and are the same on the viper trucks (They run a 48re behind the V10), but HPT refuses to add support for tuning them.