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BRINGING IT ALL TOGETHER.... A's, G's & E's


3 posters

    Brake lights not working

    Linoman
    Linoman


    Number of posts : 329
    Location : Holland, MI
    Registration date : 2010-06-14

    Brake lights not working Empty Brake lights not working

    Post by Linoman Wed Jun 01, 2011 2:35 am

    This past weekend while on a trip to my mother-in-law's I happened to check the vans rear lights; I've got lights, blinkers, & flashers, but no brake lights. I haven't had a chance to look at it yet, & thought I would get advice from the experts first to narrow down the search process. As always everyone's help is appreciated. ~Tim
    donivan65
    donivan65
    Governor
    Governor


    Number of posts : 12244
    Location : San Diego, California
    Registration date : 2008-05-12

    Brake lights not working Empty Re: Brake lights not working

    Post by donivan65 Wed Jun 01, 2011 8:44 am

    1st thing is to go to the brake light switch and see the 2 wires on it, you need 12 volts on one of the wires and when you step on the pedal, that power should come out the other wire. So use a test light or voltmeter to check for power, hook the 2 wires together to bypass the switch and see if the brake lights come on, (that would be a bad switch). So thats where to start,,,,then you can check for bad connections/fuse or other problems once you do that basic test.
    donivan65
    donivan65
    Governor
    Governor


    Number of posts : 12244
    Location : San Diego, California
    Registration date : 2008-05-12

    Brake lights not working Empty Re: Brake lights not working

    Post by donivan65 Wed Jun 01, 2011 10:52 am

    ,,,,,,,,and while we are talking about brake light switches,,,,,where are they mounted? On the master Cylinder??? In a junction block in the brake line? And what about that mechanical one,,,,,probably for a dual line master cylinder and goes on the brake pedal???? Looks like there is a repair connector on a newer switch to replace worn out original connectors or they just changed the switch to a different one. And what do you use on a Front Disk Conversion?





    Brake lights not working Ford_b13


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    Brake lights not working Ford_b14
    sasktrini
    sasktrini


    Number of posts : 2067
    Location : Saskatoon, SK, Canada
    Registration date : 2008-05-20

    Brake lights not working Empty Re: Brake lights not working

    Post by sasktrini Wed Jun 01, 2011 11:19 am

    Last image is similar to 1967 MC. Others are 61-66, mounted on MC. This switch may be okay, but one complication is that all tail light wiring passes through the turn signal switch wiring. If there is a short there, it can cause all kinds of funny behaviors.

    Look for 12V on both sides of MC switch like Donivan said. If good, next stop is turn signal wiring... look for visible shorts. Bulb sockets may be suspiciously dirty as well...

    Good luck.
    Linoman
    Linoman


    Number of posts : 329
    Location : Holland, MI
    Registration date : 2010-06-14

    Brake lights not working Empty Re: Brake lights not working

    Post by Linoman Wed Jun 01, 2011 2:55 pm

    Thanks guys ~ I'll start at the MC brake switch, and hopefully not need to go any further than that. ~ Tim
    Linoman
    Linoman


    Number of posts : 329
    Location : Holland, MI
    Registration date : 2010-06-14

    Brake lights not working Empty Re: Brake lights not working

    Post by Linoman Fri Jun 03, 2011 3:16 am

    I'm happy to report that I have brake lights again! It was indeed the MC stoplight switch. Thanks for pointing me in the right direction.
    While i was at it I replaced all the bulbs & put gaskets behind the tail lights,hopefully another spot water was getting in is now fixed.
    Also discovered the right rear running light isn't working, although I do have blinker,brake & flasher. The voltmeter tells me no power back there, so the issue must be in that tangle of wires up under the dash. This outta be fun, but another day. ~ Tim
    donivan65
    donivan65
    Governor
    Governor


    Number of posts : 12244
    Location : San Diego, California
    Registration date : 2008-05-12

    Brake lights not working Empty Re: Brake lights not working

    Post by donivan65 Fri Jun 03, 2011 9:05 am

    The juice goes to the left rear tail light, license plate light and right rear tail light,,,,probably a brown wire,,,,,,problem could be the wire that connects the license plate light to the right rear light,,,,,,

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    Brake lights not working Empty Re: Brake lights not working

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