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99 silverado head ligh mod

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Old 11-03-2005, 09:57 PM
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Default 99 silverado head ligh mod

How do i do this? Something about a yellow wire to ground? Let me know,I want all four bulbs on even on lowbeam. Is this even possible? TIA
Old 11-04-2005, 01:03 AM
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er... I wouldn't think you would want all four beams on all the time... those high's will blind people... The way it usually goes is either lows or all four
Old 11-04-2005, 01:06 AM
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Agreed. Could be ticket city.
Old 11-04-2005, 01:11 AM
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oops rather all four on on high, i was forgetting the highs are a seperate bulb and cannot be on while on low.
Old 11-04-2005, 01:47 AM
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Take the yellow wire coming out of the low beam bulb cut it a couple inches away form teh plug then splice a wire into the bulb side of the wire and ground it repeat for the other side. Your low beams will be on like normal then when you turn the highs on all four will be one.
Old 11-04-2005, 02:58 AM
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Has anyone had any trouble with overheating and burning wiring with this setup?
Old 11-04-2005, 07:02 AM
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Originally Posted by 1slow01Z71
Take the yellow wire coming out of the low beam bulb cut it a couple inches away form teh plug then splice a wire into the bulb side of the wire and ground it repeat for the other side. Your low beams will be on like normal then when you turn the highs on all four will be one.
So just tape up the wire that goes back to the PCM? And will this work on the 01 trucks as well? Just trying to figure out if I could just use a tap for another piece of wire versus having to cut it.
Old 11-04-2005, 09:18 AM
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does this also work for the 04 models.
Old 11-04-2005, 10:08 AM
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Hmm I tried that, and the lows cut off compleatly.? and highs stayed the same.
Old 11-04-2005, 10:28 AM
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https://www.performancetrucks.net/fo...d.php?t=245919


A little ways down they say how to do it on 99-02.


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