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  02.Dezember 2022 19:46:55

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 Thema: Headlight problem  (Gelesen 765 mal)
Mo

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Headlight problem
« am: 02.Februar 2022 12:38:44 »
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I can't turn on my headlights via the blue switch.

I can turn on low beam using the auto dip switch (if the engine is running) and I can switch to high beam temporarily by pulling the turn signal lever under the steering wheel.

(Tail lights activate via the blue switch as normal).

Any suggestions?
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tegebe

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Re:Headlight problem
« am: 02.Februar 2022 17:14:42 »
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Hi, there are several "scenarios".


  • Automatic light switch is off, blue switch is off: all lights are off

  • Automatic light switch is on, blue switch is off: 
    • when motor is running (more accurate: when alternator is generating charging current), low beam is on
    • high beam works only as flasher
    • when motor is off, all lights are off

  • Automatic light switch is on, blue switch is in mid position:
    • when motor is running, low beam is on
    • high beam works only as flasher
    • when motor is off, parking lighs are on

  • Automatic light switch is on, blue switch is fully on:
    • when motor is running, low beam is on
    • high beam works permanent (on/off triggered by lever); switching state keeps saved, that means if e.g. your headlight is on and you switch the blue switch off, high beam goes off but on again as soon as the vlue swutch is fully on again
    • when motor is off, parking lights are on

  • Automatic light switch is off, blue switch is in mid position:
    • parking lights are always on
    • high beam works only as flasher

  • Automatic light switch is off, blue switch is fully on:
    • when motor is running, low beam is on (eventually high beam is on due to recently activated high beam, as switching state keeps saved)
    • high beam works permanent (on/off triggered by lever); switching state keeps saved
    • when motor is off, parking lights are on

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Mo

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Re:Headlight problem
« am: 03.Februar 2022 12:53:41 »
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Many thanks for clarifying the different possibilities. I hopt this will allow us to determine the root cause. Here are the test results:

  • Automatic light switch is off, blue switch is off: all lights are off

    PASS

  • Automatic light switch is on, blue switch is off:

    • when motor is running (more accurate: when alternator is generating charging current), low beam is on
    • high beam works only as flasher
    • when motor is off, all lights are off

    PASS

  • Automatic light switch is on, blue switch is in mid position:

    • when motor is running, low beam is on
    • high beam works only as flasher
    • when motor is off, parking lighs are on

    PASS

  • Automatic light switch is on, blue switch is fully on:

    • when motor is running, low beam is on
    • high beam works permanent (on/off triggered by lever); switching state keeps saved, that means if e.g. your headlight is on and you switch the blue switch off, high beam goes off but on again as soon as the vlue swutch is fully on again
    • when motor is off, parking lights are on

    FAIL When motor is running, low beam is on but cannot switch to high beam, can only flash.

  • Automatic light switch is off, blue switch is in mid position:
    • parking lights are always on
    • high beam works only as flasher

    PASS

  • Automatic light switch is off, blue switch is fully on:
    • when motor is running, low beam is on (eventually high beam is on due to recently activated high beam, as switching state keeps saved)
    • high beam works permanent (on/off triggered by lever); switching state keeps saved
    • when motor is off, parking lights are on

    FAIL When motor is running, low beam is off and cannot switch to high beam, can only flash.

This suggests a problem with the blue switch (unlikely) or the "step relay" (stegrelä). Do you agree?

Maurice
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tegebe

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Re:Headlight problem
« am: 03.Februar 2022 13:38:03 »
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Agree. You could change the switch or short cut it to eliminate the switch.
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