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Thread: R90/6 Headlight Switch

  1. #1
    CAPITOLATIM
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    R90/6 Headlight Switch

    Hi, my newly acquired 75 R90 has a non working headlight. A get a highbeam on the flash/pass button but that's it, besides the parking light. A BMWMOA send me two used switches , I install on today but getting the same result and no horn.

    The good news is I got the clock and voltmeter hooked up and working...

    So two switches, both bad, is there something on the circuit board I should be chasing?

    Cheers

    Tim in Capitola, CA

  2. #2
    Liaison 20774's Avatar
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    Sep 2005
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    What about your headlight relay? Seems to me that when this sort of thing happens, the relay is the problem.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
    Registered User skiteach's Avatar
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    Easy enough to test switches with VOM/ continuity tester.
    '73 R75/5
    Never had a bad day skiing!

  4. #4
    CAPITOLATIM
    Guest

    Switch Tested OK

    I did test the switch with my meter, it was good. How do I test the relay?
    Cheers
    Tim

  5. #5
    Registered User skiteach's Avatar
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    Most likely by replacing. I seem to remember a thread about headlight relays recently.
    '73 R75/5
    Never had a bad day skiing!

  6. #6
    CAPITOLATIM
    Guest

    Relay was stuck?

    I dismounted the headlight relay and removed the hot lead(red) to make sure it was powered, It was when I plugged in back in, viola, the headlights work on both hi and low beams...maybe the relay was stuck. Now Im chasing the horn problem, I tested the horn switch before I installed it and it was working, I notice in the schematics that there a different colored wires for the horn...this is getting to be fun.

    Cheers
    Tim

  7. #7
    Registered User gertiektn's Avatar
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    Aug 2009
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    Ketchikan, Alaska
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    Horn switch is green/black. To the board..

    jim
    I like good stuff. No Chains here!
    1960 R50 -"Hanz"
    1977 R75/7 -"Gertie"
    2004 R1100s -"RFAR1"

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