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Thread: can't write X7F Negative Response Code

  1. #1
    Tuner in Training
    Join Date
    Feb 2020
    Posts
    38

    can't write X7F Negative Response Code

    hi
    2010 charger
    i'm getting this error Controller Locker : Undefined X7F Negative Response Code
    while writing 30 seconds later of writing has stopped and error shows up (TIME OUT) after that i tried flash it again still the same error Time out
    now i'm getting X7F Negative Response Code
    TCM writes fine i tired couple times works fine but PCM is not
    i tried remove battery terminals and hook jumper nothing help
    the car is dead now no crack
    PCM is bricked?

    x7f.jpg
    Last edited by 3.6P; 08-17-2021 at 07:34 PM.

  2. #2
    Tuner in Training
    Join Date
    May 2006
    Posts
    19
    did you log a ticket, i have the same issue with 2010 NGC4 from Ram 1500. Seems that the new release had a bug.

  3. #3
    Potential Tuner
    Join Date
    Oct 2021
    Location
    Trinidad,CO
    Posts
    1
    I previously reported this error request ticket #25512.

    I am not to pleased with the answer. I have contacted the previous owner regarding the problem, unable to use the Tuner. He in his turn is getting a hold of his brother, whom is currently in possession of the old Tuner.

    I feel like I am left out to dry, as per packet " if opened can not be returned". Prior to purchasing the device I did some research on it and nowhere does it say if your vehicle has been previously tuned using HP tuner. You have to contact previous owner and try to figure it out on your own.

    Hope you understand my dissatisfaction purchasing a $360 device that can not be used.