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Thread: Headlight issues

  1. #1
    Registered Member

    Protege5

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    Utah
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    Headlight issues

    About three(ish) weeks ago my drivers side low beam started acting up. The high beams are dimly on for both sides and the inside high beam indicator is dimly on, the drivers side low beam is very dim. The HID bulbs I had in it were not working at all so I tried switching out all of the HID components. Later I resorted to just putting the regular halogen bulbs back in and now it works but is very dim and nearly useless. Then just today I tried a different dimmer switch on the car and still no beans. Does anyone have any ideas about how to fix my problem?
    Last edited by Maohe8910; 03-13-2019 at 07:27 PM.

  2. #2
    Registered Member

    protege5

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    Sounds like a loose ground somewhere or corroded connection. I'd check resistance to ground on the ground wire at the headlight connector first and see what that says.

    when a ground is either weak (high resistance) or not present, the current back feeds through other circuits trying to find a ground. This can cause all sorts of other things to sort of go haywire

  3. #3
    Registered Member Corphish's Avatar

    83 RX-7 Gsl, 2000 Mazda Protege LX, 2011 Mazda3 Sport i

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    Baldwin, WI
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    I had the same issue island I solved mine by doing the Big 3 mod.

  4. #4
    Registered Member

    protege5

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    Quote Originally Posted by Corphish View Post
    I had the same issue island I solved mine by doing the Big 3 mod.
    Wouldn't hurt to try. I know on my car the ground strap that went to the driver's strut area was barely hanging on by a thread so I added a 4AWG cable on top of it

  5. #5
    The Diagram Dude pcb's Avatar

    2002 mazda protege 5

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    Jun 2011
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    ontario, canada
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    4,980
    Here's a link for the Big 3 ground wire mod.

    There used to be a lot of good pictures but they're gone now.

    https://www.mazdas247.com/forum/show...st%20grounding
    The Diagram Dude

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