1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

LED Wiring relay problem - 04 Tacoma

Discussion in '1st Gen. Tacomas (1995-2004)' started by SGF, Mar 25, 2015.

  1. Mar 25, 2015 at 7:12 PM
    #1
    SGF

    SGF [OP] Member

    Joined:
    Mar 25, 2015
    Member:
    #151778
    Messages:
    6
    Gender:
    Male
    Hi Folks - newbie looking for advice - 2004 Tacoma. So I'm trying to wire my LED light bar to go on/off with the reg hi beams. I am using a standard 4 prong relay. I have 86 as 12v dc power in, 85 as 12v dc power to lights. 30 is ground to lights/frame and 87 goes back to a dash mounted on/off toggle that is supplied from an "add a circuit" in the small 10amp fuse box beside the battery for the LH Hi beam. When I turn on the dash mounted lights to low beam, now problems, low beam. When I turn on the high beams with the reg hi beam switch, the LED go on, but when I turn the switch off, the LED stay on. The reg hi beams works fine. (the dash mounted toggle is only there as a primary shutoff to disable the system)
    Anything I'm missing, perhaps the relay is fried in that it goes on but not off? However, I tryed the Add a circuit in the low beam fuse to check, and it goes on/off no problem. Any feedback appreciated.
    Thx
     
  2. Mar 25, 2015 at 7:36 PM
    #2
    SGF

    SGF [OP] Member

    Joined:
    Mar 25, 2015
    Member:
    #151778
    Messages:
    6
    Gender:
    Male
    correction:
    30: 12 v DC from Battery
    87: + power to LED
    85: GROUND to frame
    86: Switched power from hi beam fuse in engine fuse box
     
  3. Mar 25, 2015 at 10:02 PM
    #3
    NightProwler

    NightProwler Well-Known Member

    Joined:
    Nov 12, 2013
    Member:
    #116470
    Messages:
    3,499
    Gender:
    Male
    First Name:
    Harlan
    Maricopa, Az
    Vehicle:
    '01 Prerunner, '16 trd4x4, '03 cbr954rr, '03 rc51
    Yeah our lights are a little tricky. They are negatively switched. Meaning:

    9d272b50-b17d-4b6a-9e91-d2166b8f264a_zps_c8238233133db62e489e6d791c70c56e527cbfd0.jpg

    And here's how I wired mine:
    2_zpsf428cc06_57fead816612d231ea101712be9108a7bb40dd5f.jpg


    pin 30 goes to battery.
    Pin 87 goes to led bar.

    Edit: my passenger H4 is blank due to the retrofit. So that's why I used those pins. But you can use whatever method, such as wire taps/splice connectors, you wish if you have stock headlights.

    And in my pic I think I have the wire colors swapped. 85 i shoukdve made black and 86 red. But it doesn't matter at all on the color.
     
    Last edited: Mar 25, 2015

Products Discussed in

To Top