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Thread: AEM Can Pass-Through Disappears When Scanning Starts

  1. #1
    Tuner in Training
    Join Date
    Mar 2023
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    11

    AEM Can Pass-Through Disappears When Scanning Starts

    I have my AEM connected through the OBDII pass through (MPVI3) and the correct PID selected in the channels list. I decided to test it on my daily (2013 Accord Sport) before an appointment this weekend and I had some quirks.

    Either VCM Scanner does not connect properly and cannot recognize the car at all then all I get is the WB readout on the channels list, or when I do get it to recognize the car the WB says it isn't connected when scanning starts.

    Attached is the list when I get the vehicle to connect properly. All the normal PIDs are there except my AEM readout. Is this a vehicle specific issue?

    Thanks in advance,

    -John
    Attached Images Attached Images

  2. #2
    Tuner in Training
    Join Date
    Mar 2023
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    11
    Now when I attempt to connect while I have the AEM pass-through connected, a loss of communication with instrument cluster code is thrown and at times the gauge cluster flat lines entirely. Without the-pass through I am able to connect normally without issue.

  3. #3
    Advanced Tuner
    Join Date
    Dec 2005
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    604
    Try doing an info log to see what all is in there.