H3 2007 Tail Lights diagram

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03-12-2013, 05:11 PM

Jay035

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Join Date: Mar 2011

Posts: 6

H3 2007 Tail Lights diagram

hello Im trying to figure out the tail light wiring... which wires are positive (+) and Negative (-) i see 4 wires for the break lights and for the reverse light 2 wires PLEASE Help!

03-12-2013, 06:46 PM

hummerz

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All wiring diagrams included in link below, you will find what you are looking for in figures 18-21...

http://schwarttzy.com/wp-content/upl...iring-2007.pdf

03-13-2013, 07:38 AM

hummerz

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Light green (LT GRN) shown on page 36 (fig.18 backup lamps circuit) & 42 (fig. 21 exterior lamps circuit 3 of 3) (to the trailer connector) is your positive for the reverse lights.

07-01-2017, 02:15 PM

hayitstyler

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Posts: 8

Which wires do you splice to in order to hook up rear roof markers. I want them to come on when my normal lights at night come on. Like jay035 I see 4 going to the taillight. But which color turns what on?

07-05-2017, 10:34 AM

Doc Olds

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Quote:

Originally Posted by hayitstyler

Instead of tacking your question on the end of a 4 Year OLD+ thread, ask a NEW question, link to the old if you believe it to be appropriate for your discussion.

READ: Old Threads/'Necro-Bumping' https://www.hummerforums.com/forum/n...bumping-23220/