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Headlights wiring help?

Discussion in '1st Gen Tundras (2000-2006)' started by snapbakk802, May 16, 2025.

  1. May 16, 2025 at 11:08 AM
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    snapbakk802

    snapbakk802 [OP] New Member

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    So I have an 03 tundra SR5 V8 and I’m trying to figure out what wires are for the highbeams low beams and the common but all the wires are red and have a line on them. There’s two yellow two greens and there’s one white and blue I was curious if anyone knew what lights went to what color? Picture below
     
  2. May 16, 2025 at 11:10 AM
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    snapbakk802

    snapbakk802 [OP] New Member

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  3. May 16, 2025 at 11:11 AM
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    snapbakk802

    snapbakk802 [OP] New Member

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  4. May 16, 2025 at 11:11 AM
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    The Black Mamba

    The Black Mamba A pure specimen of TX Black Snek

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    snapbakk802[OP] likes this.
  5. May 16, 2025 at 11:13 AM
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    snapbakk802

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  6. May 16, 2025 at 11:31 AM
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    BubbaW

    BubbaW Blessed 2 B above Ground

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    You'll find it under the System Circuits section of the Table of Contents. In case you don't know, they'll be a drawing for Head Lgts with Daytime Running Lights(DRL) and one without DRL.
    Given those colors, I'll assume you have no DRL.

    03 SR5 HL.jpg
     
    TX-TRD1stGEN likes this.
  7. May 16, 2025 at 11:50 AM
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    1lowlife

    1lowlife Toxic prick and pavement princess..

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    Here are the wiring diagrams for all Tundras
    Ultimate TUNDRA Wiring Diagrams Collection | Toyota Tundra Forum

    You technically have 2 grounds, the ground is what turns on the circuit.

    upload_2025-5-16_13-45-41.png

    H1 - L/H
    Pin 1 Red/green low beam ground
    Pin 2 Red/yellow high beam ground
    Pin 3 Red/lilac power

    H2 - R/H
    Pin 1 Red/green low beam ground
    Pin 2 Red/yellow high beam ground
    Pin 3 Red/white power

    upload_2025-5-16_13-49-4.pngupload_2025-5-16_13-49-50.png
     

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