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10-29-2006, 02:16 AM
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Hummer Authority
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Join Date: Sep 2003
Location: Canada
Posts: 1,251
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Re: OEM LIGHT BAR?.WIRING hook up
If your truck was not originally equipped with A light bar the harness will not be there. The harness can be purchased seperatly from GM. You need to ask for the harness for the roof mounted off road lamps(same harness except it does not have the inline fuses) I've installed several this way and they work just fine. Theres 2 harness' that you will need, the body harness and the roof harness I can try and get part #'s on monday.
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10-29-2006, 02:34 AM
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Hummer Professional
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Join Date: Nov 2005
Location: N.H. SEACOAST
Posts: 289
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Re: OEM LIGHT BAR?.WIRING hook up
If you would do that it will be great.thanks
Quote:
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Originally Posted by HUMTECH
If your truck was not originally equipped with A light bar the harness will not be there. The harness can be purchased seperatly from GM. You need to ask for the harness for the roof mounted off road lamps(same harness except it does not have the inline fuses) I've installed several this way and they work just fine. Theres 2 harness' that you will need, the body harness and the roof harness I can try and get part #'s on monday.
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10-29-2006, 03:51 AM
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Hummer Guru
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Join Date: Oct 2005
Location: Charlotte, NC
Posts: 2,767
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Re: OEM LIGHT BAR?.WIRING hook up
Quote:
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Originally Posted by HUMTECH
If your truck was not originally equipped with A light bar the harness will not be there. The harness can be purchased seperatly from GM. You need to ask for the harness for the roof mounted off road lamps(same harness except it does not have the inline fuses) I've installed several this way and they work just fine. Theres 2 harness' that you will need, the body harness and the roof harness I can try and get part #'s on monday.
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Humtech,
Does the rule about the H2 needing to be an '06 still apply in order to plug in the new harnesses?
I ask because mine is an '03 and when I went to the dealer, they told me that the harness you plug the little harnesses into only came on the 06's....
Thanks,
Mark |
10-30-2006, 08:03 PM
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Hummer Professional
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Join Date: Nov 2005
Location: N.H. SEACOAST
Posts: 289
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Re: OEM LIGHT BAR?.WIRING hook up
UPDATE, Over the weekend looked for plug/wires to plug the lightbar into....nothing, so i PM Partsguy and he was nice enough to get me the part #er's (2). to make a long story short the 2 harness cost more then a payed for the lightbar? so i'm going to make my own, i have 3 wires coming out of the light bar, red power, black ground and purple? does anyone know what that is for?
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11-01-2006, 07:08 AM
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Hummer Authority
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Join Date: Nov 2004
Location: Little Rock, Arkansas
Posts: 1,784
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Re: OEM LIGHT BAR?.WIRING hook up
Do a wiring search and You will find allot of help. But, 3 wires has to do with power, grd., and switch to control relays that turn the actual power on to lamps, I think. It has been a long time since I looked and lost allot of brains cells over last year or actually My girls tell me it is since i turned 50 in October.
__________________
05 H2 SUV cus. paint, Magnuson SC 6/12lb boost, cowl hood scoop, 12" dash touchscreen, GM elec. fans, HPTuners.com tuning soft., Dynatech headers dual catback exhaust Jet Hot chrome front to back Flowmaster Super 40's, Diamo 8 Karat rims & 325X60-20" Toyo, 4 OEM Captain seats Katzkins leather, rear console computer inside running all AV/NAV etc., Infinity component system 3 amps Tsunami Caps, rear flip down 12" monitor, headrest monitors, overhead console boost, fuel pressure, & A/F ratio gauges
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11-01-2006, 03:30 PM
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Hummer Professional
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Join Date: Nov 2005
Location: N.H. SEACOAST
Posts: 289
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Re: OEM LIGHT BAR?.WIRING hook up
Trust me i have been searching, I found out red powers 2 of the lights and purple powers the other 2? dont know why? maybe they draw to much for 1 circuit? I have been reading people adding relays, I dont know what they do and if i need 1?
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11-03-2006, 04:46 AM
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Hummer Authority
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Join Date: Sep 2003
Location: Canada
Posts: 1,251
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Re: OEM LIGHT BAR?.WIRING hook up
Definatly run A relay, It takes the load off the switch. A relay is used to power the circuit, the switch just has to turn on the relay therefore taking the load off the switch. Heres the oem diagram.
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11-03-2006, 07:16 PM
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Hummer Professional
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Join Date: Nov 2005
Location: N.H. SEACOAST
Posts: 289
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Re: OEM LIGHT BAR?.WIRING hook up
HUMTECH, thats what im looking for.....thank you.....does anyone know the watts of the bulbs in the oem bar?
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