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Thread: 2014 Infiniti Q60 VQ37VHR write X7F NEGATIVE RESPONSE CODE

  1. #1
    Potential Tuner
    Join Date
    Jul 2018
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    2

    2014 Infiniti Q60 VQ37VHR write X7F NEGATIVE RESPONSE CODE

    Tried to write transfer an edited tune for my Infiniti Q60 VQ37VHR but keep receiving a failed X7F negative response code.
    I tried seeing if there were any updates but i'm using the latest software. The car reads perfectly fine but uploading tune to the car is a headache . The car was never tuned in the past.

    HELP PLEASE. Much appreciated

  2. #2
    99% of the time that error is thrown because the battery load is too high. Make sure that everything is turned off (i.e. headlights, radio, A/C, etc.) and then try again.

  3. #3
    Potential Tuner
    Join Date
    Jul 2018
    Posts
    2
    Thanks i'll try to turn everything off