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High beams help

Discussion in '2nd Gen. Tacomas (2005-2015)' started by hygene74, Jan 3, 2022.

  1. Jan 3, 2022 at 2:16 PM
    #1
    hygene74

    hygene74 [OP] Member

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    Snug Top
    Hello. I turn on my lights and after driving for a few seconds, the high beams kick on. Also, if I flick on the high beams, they won't flick off. I'm permanently high beams.
     
  2. Jan 3, 2022 at 2:20 PM
    #2
    Geeves77

    Geeves77 Well-Known Member

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  3. Jan 3, 2022 at 3:20 PM
    #3
    hygene74

    hygene74 [OP] Member

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    Snug Top
    Thanks. That thread was a bit of a worm hole. Many of the descriptions sounded exactly like what I got going on. Including inclement weather. I also have a water that collects under my left foot. Hopefully it's the relays after 178k.
     
  4. Jan 3, 2022 at 6:55 PM
    #4
    Dm93

    Dm93 Test Don't Guess

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    If you have water intrusion in the drivers side I'd check if the Body ECU (on the back of the interior fuse box) is getting wet, if it is that's most likely your issue.
    The high beam control circuit is relatively simple, the dimmer switch grounds Pin 11 (Red/Green) to signal the Body ECU to turn on the high beams, the Body ECU then grounds Pin 2 (Yellow/Black) of the DIM Relay to turn on the high beams.
     

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