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Thread: Day time running light fault. Shows only 1V getting to light.

  1. #1
    Join Date
    Feb 2017
    Location
    San Diego, CA
    Posts
    12
    My Cars
    2001 Z3 Coupe

    Day time running light fault. Shows only 1V getting to light.

    2001 Z3 Coupe.

    Right front daytime running light not working. Checked bulb and replaced. i dont see any obvious wiring issue. Ground wire shows connectivity. When runnging lights are on meter only shows 1 volt getting to light. I am clueless. Does this sound like a bad DRL relay?

  2. #2
    Join Date
    Feb 2017
    Location
    San Diego, CA
    Posts
    12
    My Cars
    2001 Z3 Coupe
    I found the problem after considering another problem, ambient temp sensor not working. Recently had bumper replaced and body shop guys reversed the plugs. Thanks BMW for making all of your plugs exactly the same... Silly error and pretty rookie...

  3. #3
    Join Date
    Apr 2017
    Location
    Wroclaw
    Posts
    1
    My Cars
    Mercedes w210
    Translate a similar problem. She helped to change the temperature sensor


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