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Thread: Wording diagram for trailer towing

  1. #1
    Join Date
    Feb 2010
    Location
    Memphis Tn
    Posts
    206
    My Cars
    2006 330ic, 2 e36 before

    Wireing diagram for trailer towing

    I sold my e36 and purchased a 06 330ic with the led tail lights.
    So now I am trying to install the trailer wireing harness and the plug on each side has so many tinny wires. I have not bought the new Bentley manual and need the wireing diagram. Could someone post that page?
    Thanks in advance. Mike
    Last edited by mike318; 06-14-2019 at 11:25 AM.
    1998 328ic

  2. #2
    Join Date
    Mar 2011
    Location
    PNW
    Posts
    935
    My Cars
    LS E46
    Why do you need a diagram? Just find which wires go to which bulbs.

  3. #3
    Join Date
    Feb 2010
    Location
    Memphis Tn
    Posts
    206
    My Cars
    2006 330ic, 2 e36 before
    On each side going to the tail lights leds there is plug with seven wires. My testing of that plug gives me always hot on the red and sporadic voltage on two other wires. Crazy. I have not guessed what I need as yet. It was easy on my e36 bulbs. Do you have a diagram?
    1998 328ic

  4. #4
    Join Date
    Jan 2015
    Location
    Timaru, New Zealand
    Posts
    1,132
    My Cars
    Two Z3 Roadsters
    Here is a link to the wiring diagrams. start your search there.
    https://www.newtis.info/tisv2/a/en/e...body/lighting/
    1999 2.8L Z3 Roadster,
    2000 3.0L Z3 Roadster,

    There is only one thing more pleasurable than working on a Z3, that's driving it top down on a fine day.

  5. #5
    Join Date
    Feb 2010
    Location
    Memphis Tn
    Posts
    206
    My Cars
    2006 330ic, 2 e36 before
    Quote Originally Posted by Liquidity View Post
    Why do you need a diagram? Just find which wires go to which bulbs.
    Thank you and Muzz258
    Yes, I got my simple probe 12v tester out and used it to light up the plug. I had over annualized the wiring. My multimeter couldn't read fast enough to register. Just have to straighten and fill the trunk again. Done
    1998 328ic

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