Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1
    Join Date
    Mar 2014
    Location
    Sacramento, CA
    Posts
    7

    Driver Side Headlight (low beam) not working; factory bi-xenons

    Hi All,

    I've been trying to troubleshoot this problem and have been checking this forum as well as others to find a solution. So far no luck.

    Symptoms: Driver Side Headlight Low Beams not working, but passenger side works.

    Troubleshooting:
    1. Swapped bulbs with other side (confirmed working)
    2. Swapped ignitor with other side (confirmed working)
    3. Swapped ballast with other side (confirmed working)
    4. Checked battery voltage w/ OBC menu on dash. ~124 w/ car off and ~147 w/ car on

    ** Crazy thing that happens is if I completely Disconnect the passenger side power connections to the bulbs, the driver side will come on after a second when I turn the headlights on.

    Should I reseat the battery power connections, even though the voltage is reading right?
    Do the Bi-Xenon's have a fuse? (I read somewhere it doesn't)
    Is there a Relay somewhere that I can't find?

    Anyhelp would be appreciated.

    Thanks!

  2. #2
    Join Date
    Mar 2014
    Location
    Sacramento, CA
    Posts
    7
    Actually just found a thread about similar issues. not sure why i didn't see it before.
    Will update status later.

    http://www.zhpmafia.com/forums/showt...nna-work/page5

  3. #3
    Join Date
    Dec 2012
    Location
    Salt Lake City, UT
    Posts
    6,871
    Sounds like the LCM might be tripping.

    Sent from my SM-N900T using Tapatalk
    In the market for an E90 M3

  4. #4
    Join Date
    Mar 2014
    Location
    Sacramento, CA
    Posts
    7
    Battery Reset fixed it, not sure why though.

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