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Thread: Detect protocol failed

  1. #1
    Tuner in Training
    Join Date
    Aug 2016
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    15

    Detect protocol failed

    Getting detect protocol failed when trying to read this computer
    when i unplug power then it says power not detected, tried two diffter suites and 3 different computers

    any idea what to try next? not getting the right volts or amps effect it?
    suppose to be a 12v 1 amp supply im using to power the pcm with

  2. #2
    Advanced Tuner 15PSI's Avatar
    Join Date
    Feb 2016
    Location
    East Coast Somewhere
    Posts
    458
    Can you provide more information? Car type, VCM Suite version? Is the battery fully charged in the car? 12.8-12.9 volts resting with surface charge removed?
    2012 Mustang GT with S/C
    4Runner with S/C
    Turbo/NOS Hayabusa - 320RWHP

  3. #3
    Tuner in Training
    Join Date
    Aug 2016
    Posts
    15
    the pcm is inside on my table, its an 0411 from a silverado. using a 12v 1 amp power adapter. i know its powering he pcm because obd2 port works for other stuff, but editor wont read... i am going to get a battery and bring it inside it nmight be my power adapter