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Random VCS, Trac Off, and Check Engine Lights

Discussion in '3rd Gen 4Runners (1996-2002)' started by DALLAS, Jun 13, 2015.

  1. Jun 13, 2015 at 6:02 PM
    #1
    DALLAS

    DALLAS [OP] New Member

    Joined:
    Jun 13, 2015
    Member:
    #704
    Messages:
    4
    Gender:
    Male
    First Name:
    Dallas
    Vehicle:
    2002 Toyota 4-Runner Limited
    The VCS, Trac Off, and Check Engine lights come on and go off randomly. All three light up and all three go off at the same time, but does not affect performance at all. Has anyone had this issue before?
     
  2. Jul 11, 2015 at 7:02 PM
    #2
    sntandrew

    sntandrew New Member

    Joined:
    Jul 11, 2015
    Member:
    #760
    Messages:
    5
    Gender:
    Male
    South Carolina
    Vehicle:
    2002 Black 4Runner 4x4 SR5
    3" Rough Country Suspension Lift Rola Roof Rack 31.5 BFG AT KOs 2 Goal Zero Solar Panels
    An air fuel ratio sensor can cause all thee lights to come on. Not sure if this is your problem or not however that is what was causing the issue on my 2002 4 runner 4x4 SR5. The charcoal canister vent solenoid can cause this problem as well however it is usually accompanied by a P0440 not a P0420. I hope this helps.
     
    Last edited: Jul 12, 2015
    Bob likes this.

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