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Need Help: HID retrofit - High beam works, but low beam doesn't

Discussion in 'Lighting' started by MupxMup, Jul 20, 2011.

  1. Jul 20, 2011 at 11:54 AM
    #1
    MupxMup

    MupxMup [OP] Well-Known Member

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    Just install some some retrofit projector headlight, but it doesn't work. It does light up when I put it in high beam.

    I have the retrofit source relay harness, the denso ballasts and fx projector.


    Any clue why it doesn't work?
     
  2. Jul 20, 2011 at 11:57 AM
    #2
    horwitzs

    horwitzs Well-Known Member

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    I don't know much about HIDs so I might be talking out of my ass here; sorry in advance, somebody can correct me.

    HIDs are a gas filled bulb, with no filament, basically like a very tiny neon sign tube that is filled with Xenon gas. Therefore there is no such thing as a dual filament HID bulb that works for both high and low beam; it's either one or the other.
    Don't you need a headlight setup with separate bulbs to run both high and low HIDs, and of course separate ballasts and stuff for each pair?

    EDIT: Ah, shit. I didn't notice at first that you did switch to a projector setup. Is that the retrofit that still uses a single projector in place of the stock light, or does it have dual projectors?
     
  3. Jul 20, 2011 at 11:59 AM
    #3
    PLC721

    PLC721 Well-Known Member

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    its a projector retro fit, all the high beam is is a different cutoff that rotates into position
     
  4. Jul 20, 2011 at 12:00 PM
    #4
    Burgman

    Burgman I KEEEEEL YOU

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    the retrofits have a metal tab that moves up and down to allow a low beam and high beam... there should be two wires coming out of the back of the projectors that need to be wired in doesnt matter which one is hot and which one is ground

    check those wire first if the lights are coming on
     
  5. Jul 20, 2011 at 12:00 PM
    #5
    AsianAnts

    AsianAnts just an AnT

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    switch the wires.. low to hi, hi to low... The harness had markings on them to identify which wires go for what, try it out... TRS also had a little paper note. i followed the paper instruction and came across the smae situation as you... Just switch the wiring and test..
     
  6. Jul 20, 2011 at 12:04 PM
    #6
    MupxMup

    MupxMup [OP] Well-Known Member

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    called MAtt at retrofit.


    Apparently the little sheet they sent out with the relay harness is wrong. Going to which the wiring up
     
  7. Jul 20, 2011 at 12:10 PM
    #7
    horwitzs

    horwitzs Well-Known Member

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    Supercharger, OME lift w/ LR UCAs, running boards, toolbox, extinguisher mount, skidplate, N-Fab light bar, 40" R.I. LED bar, WO seat covers, TRD intake, Weathertech mats and visors, stubby antenna, hood struts, LED interior lighting, Hella Supertones, and other stuff I'm forgetting.
    I'm glad you guys are familiar with the retrofit... Obviously I should have kept my mouth shut!
     
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