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Thread: Tow Bar Electrics 7way bypass relay what colours

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    Regular Member chuckleuk's Avatar
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    Default Tow Bar Electrics 7way bypass relay what colours

    i will be installing a 7way bypass relay at the weekend can anybody help me with what colour wires in the rear light clusters control which light, car is a sri hatch facelift i know that the white and black is reverse and brown is the earth but need to know what colour for break light, indicator etc cheers Lee

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    Brake Light = Black/Yellow
    LH Side Light = Grey/Black
    RH Side Light = Grey/Red
    Fog Light = Black/Blue
    LH Indi = Black/White
    RH Indi = black/Green

    And ya Bypass colours are
    1. Yellow = Lh indi
    2. Blue = Fog
    3. White = Earth
    4. Green = Rh Indi
    5. Brown = Rh Side
    6. Red = Brake
    7. Black = Lh Side

    P.s. If ya using a smart 7 bypass then you shouldn't need to connect anything to the sidelight feeds of the car as the unit will detect the voltage differences from the brake feed wire and supply the outputs accordingly.
    Also depending where you connect at the rear, there is more than 1 black/yellow wire. One of which is for the filler flap lock!!!

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    Regular Member chuckleuk's Avatar
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    You are an absolute star thank you so much cheers Lee

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    Quote Originally Posted by chuckleuk View Post
    You are an absolute star thank you so much cheers Lee

    Thats ok mate no probs. Used to fit towbars and done hundreds of veccy's including mine. Give me a shout if ya wanna know anything else.


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    Hi Johno8222

    This is perfect. I'm doing the job this weekend so you've just saved me lots of tracing wires through the boot!

    Any advice on where to bring the main cable for the 12n and 12s in from the outside - The instructions tell me where to drill for the actual towbar but not for the electrics!

    Cheers

    Ben

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    Ex-Staff Full Member John LE's Avatar
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    Vehicle : Facelift Insignia/Corsa D

    Trim : LE/VXR

    Engine : 2.0 cdti/1.6 Turbo

    Year : 13/07

    Default

    The genuine vx towbar wiring comes through next to the number plate light wires....that's where i'd bring them in

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