Forcing Low Beams On With High?

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JohnR
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Posts: 24
Joined: Wed Apr 29, 2015 9:17 am
Year and Trim: 1997 Bonneville SE 40th Anniverary

Forcing Low Beams On With High?

Post by JohnR »

Seems like this is a popular modification on the GM trucks but my search here didn't get me anything specific. I know it can be done with a relay under the hood and I know how to do it that way. I've read several mentions of using a diode under the dash to allow the high beam signal wire to back feed the low beam signal wire so the lows stay illuminated with the highs. Anyone done this on the 99 and down Bonneville?

Thanks.

John
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JohnR
SE Member
SE Member
Posts: 24
Joined: Wed Apr 29, 2015 9:17 am
Year and Trim: 1997 Bonneville SE 40th Anniverary

Re: Forcing Low Beams On With High?

Post by JohnR »

Searched again using the keyword "diode" and found it. :D

John
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