Turn Signal issue

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  • sajone
    Noobie
    • Mar 2023
    • 1

    #1

    Turn Signal issue

    Hello everyone,

    I realise this is a relatively common issue however I cant seem to find a post with similar faults to mine on here. I have no lights on the dash or any bulbs going when i use the stalk or try hazard switch, but when i use my central locking (aftermarket alarm) the 4 corner amber lights still work.

    Currently i have gone through the following to try and diagnose:

    Fuses - fine
    Relay.- fine

    Next step was to try and remove the hazard switch to have a look at that. Can anybody else offer any other guidance?
  • Vincenze
    E30 Modder
    • Apr 2019
    • 915

    #2
    What about the flasher relay?

    There are videos on YouTube.

    Comment

    • Panici
      Moderator
      • Dec 2009
      • 2318

      #3
      Start with the hazard switch. Going from memory, but I believe all the turn signal wiring is fed through there.

      Next I would suspect the aftermarket alarm system. How did it tap into the original turn signal wiring?
      If there are vampire / quick / T-Taps on there, the factory wiring may be damaged.


      Wiring diagrams for your year can be found here:

      '87 BMW E30 325is Turbo

      '99 BMW E36 M3 - - - '98 BMW E36 328i

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