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    maril51's Avatar
    maril51 Posts: 5, Reputation: 1
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    #1

    Sep 27, 2006, 11:29 AM
    Mazda 626 '99, brake lights out
    All my brake lights including the one in the rear window won't light. All other lights work. I checked all fuses. Does one bulb cause them all to be out?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #2

    Sep 27, 2006, 11:35 AM
    Check your brake light switch for continuity, if you are positive you have tested all under-dash and under-hood fuses. Spray the brake light switch with WD-40.
    maril51's Avatar
    maril51 Posts: 5, Reputation: 1
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    #3

    Sep 27, 2006, 11:39 AM
    What do you mean? Is there a brake light switch?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #4

    Sep 27, 2006, 11:45 AM
    It's connected to the brake pedal, usually under the dash.
    maril51's Avatar
    maril51 Posts: 5, Reputation: 1
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    #5

    Sep 27, 2006, 11:58 AM
    I located what might be the switch, but I'm afraid to spray it, there are a lot of wires around it and it might not be the right thing.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #6

    Sep 27, 2006, 12:04 PM
    Proper procedure would be to take a test light or multimeter and test for power coming into the brake light switch and then test the switch itself. You may want to take it to a mechanic and have him check it out, if you are not comfortable doing it. Buy a Haynes Manual for your vehicle and it will help you with these common problems.
    maril51's Avatar
    maril51 Posts: 5, Reputation: 1
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    #7

    Sep 27, 2006, 12:05 PM
    Okay, you talked me into it. Thanks
    TURKEY-POINT's Avatar
    TURKEY-POINT Posts: 18, Reputation: 1
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    #8

    Sep 29, 2006, 06:44 PM
    Ive Seen Those Kicked Off Too. Do You Have Trailer Lights?
    maril51's Avatar
    maril51 Posts: 5, Reputation: 1
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    #9

    Oct 4, 2006, 11:48 PM
    I took my Mazda to a mechanic and he put in a new brake light switch. It didn't fix the lights. So he took it out and I'm going to get my money back. He didn't have time to look for broken wires. Can anyone think of anythng else to try? It's really scary driving with no brake lights.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #10

    Oct 5, 2006, 12:12 PM
    Flow is usually from the battery, to the under-hood fuse/relay box, to the brake switch, to the brake lights (which are wired in parallel), to ground. With a test light, or DMM, verify power to:
    . Under-hood brake fuse,
    . Brake switch connector and switch (check power into and out of)--also adjust pedal height*, and
    . Brake light sockets.

    Finally, check for a poor ground (normally BLK wire) or an open in the wiring. If you methodically do this, you will locate the problem.

    *Wouldn't surprise me, if this is all that is wrong!
    memechanic01's Avatar
    memechanic01 Posts: 1, Reputation: 1
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    #11

    Oct 21, 2012, 06:49 PM
    I have performed all the tests you listed but still no lights .I have power out of the brake switch.is it possible for the brake check unit to fail and cause no lights
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