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Parasitic Draw from ECU-B no 3 issue

Discussion in '3rd Gen. Tacomas (2016-2023)' started by apexed, May 6, 2025 at 5:32 PM.

  1. May 6, 2025 at 5:32 PM
    #1
    apexed

    #1
    apexed [OP] Well-Known Member

    Joined:
    Jan 24, 2022
    Member:
    #388262
    Messages:
    63
    I have a parasitic draw on my 2016 and I’ve got it narrowed down to the the ECU-B no 3 fuse, and have further found removing the harness behind the instrument cluster to likely be the cause. I’m struggling to find what systems are linked within this harness to try and narrow it down further, can anyone help out?

    IMG_9851.jpg
     
    apexed, May 6, 2025 at 5:32 PM
    #1
  2. May 6, 2025 at 7:24 PM
    #2
    Vlady

    #2
    Vlady Well-Known Member

    Joined:
    Dec 20, 2017
    Member:
    #238986
    Messages:
    4,444
    Gender:
    Male
    Issy, WA
    Vehicle:
    2017 White SR5 DCSB V6 4x4
    see attached
    c9 is the connector pinout
     

    Attached Files:

    Last edited: May 6, 2025 at 7:46 PM
    Vlady, May 6, 2025 at 7:24 PM
    #2
    apexed[QUOTED][OP] likes this.
  3. May 6, 2025 at 11:05 PM
    #3
    apexed

    #3
    apexed [OP] Well-Known Member

    Joined:
    Jan 24, 2022
    Member:
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    Messages:
    63
    Thank you!
     
    apexed, May 6, 2025 at 11:05 PM
    #3

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