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Dash Lights Flashing 4Lo 4Hi Pre-Collision

Discussion in 'Sequoia 2nd Gen (2008-2022)' started by jafo99, Sep 6, 2025 at 10:06 AM.

  1. Sep 6, 2025 at 10:06 AM
    #1
    jafo99

    jafo99 [OP] New Member

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    2019 Sequoia Limited
    PIMG_9603.jpg Posted on Sequoia Forums as well:

    2019 Sequoia Limited
    Miles: 100k

    The last two weeks I’ve been trying to figure out why the dash lights are flashing:
    4Lo/4Hi, Pre-Collision, menu cycles through Pre-Collision System Malfunction - Blind Spot Monitor Malfunction - Rear Cross Traffic Alert Malfunction- Drive-Start Control Malfunction

    Lights ON & NOT flashing: ABS, Brake, Traction control, RCTA, BSM, Seatbelt and Master warning Triangle w/Exclamation Mark.

    I have a new battery, fuses intact, clean wires/no rips tears, checked all wiring down to wheel sensors, no damage noted and connections look/feel great. Drives like normal.

    Took to Autozone and NO CODES found. WTF?

    Any ideas Toyota fam? Attached Picture.
     
    Last edited: Sep 7, 2025 at 11:30 AM
  2. Sep 8, 2025 at 4:00 PM
    #2
    Rodtheviking

    Rodtheviking New Member

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    Vancouver, WA
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    2015 Sequoia Platinum, Eibach Pro, Bilstein, Tandem Off Road, 12Deg Rock Sliders, RCI, Sherpa Rack
    Was the code reader able to read ABS codes? They are separate from OBD codes.
     
  3. Sep 8, 2025 at 5:33 PM
    #3
    jafo99

    jafo99 [OP] New Member

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    No Codes at all. No ABS code for either Autozone or O’Reillys scanner.
     
  4. Sep 8, 2025 at 7:11 PM
    #4
    jafo99

    jafo99 [OP] New Member

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    Toyota Tech says it’s the Right Rear ABS wiring from rats chewing at it. I had looked at it prior and the wires go up into an area I could not see, so I’m sure that’s it. Not sure why no codes though?

    Skid Control wire at $81 plus $65 to install. Plus the $129 diagnostics. Need to wait for part to arrive Wednesday, then install. I’m just going to pay for them to install, I’m sure it will take me a couple of hours plus frustration.
     

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