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06-30-2008, 01:47 PM
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Elcova Rookie
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Join Date: Jun 2008
Location: CT
Posts: 7
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Re: 2008 H2 OPD Port Location?
Oh, Taz, one more thing...no mention of the port in the manual. I think they don't want anyone messing with it! Ted
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07-01-2008, 07:00 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: 2008 H2 OPD Port Location?
Hey Ted,
I'm really surprised there is no mention of OBD port. Sometimes I have seen pics of underside of dash left of steering wheel talking about something else and you could see port. Port should not be blocked behind a kick panel. It is used almost number 1 by Tech to plug diagnostic up to, so it would not be made hard.
Ted it may be under the hood near the fuse box on fender on drivers side.
Well hope you get it worked out. I do not know where else to advise.
TAZ
__________________
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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07-01-2008, 11:21 AM
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Hummer Authority
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Join Date: Oct 2003
Posts: 1,118
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Re: 2008 H2 OPD Port Location?
On the 2003 it is attached right above where the wires are hanging down. (guess I need to move the wires back up) There is a plastic cover that just pulls off and that is where you plug a programmer in or where the dealership hooks into.
P.S. Moved the wires already 
Last edited by Easy Ed : 07-01-2008 at 11:26 AM.
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07-02-2008, 08:15 PM
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Elcova Rookie
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Join Date: Jun 2008
Location: CT
Posts: 7
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Re: 2008 H2 OPD Port Location?
Taz/Ed, thanks foryour help. Ultimately found it....The truck only has about 12,000 miles on it and has not been serviced yet. Finally found the OBD, it was not mounted to anything and apparently when it left the factory all they did was tuck it up above the steering column so you couldn't see the actual connector. My mechanic found it in 10 secs simply becaus he recognized the cable! BEst, Ted
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07-02-2008, 09:27 PM
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Hummer Authority
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Join Date: Oct 2003
Posts: 1,118
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Re: 2008 H2 OPD Port Location?
"it was not mounted to anything and apparently when it left the factory all they did was tuck it up above the steering column so you couldn't see the actual connector"
WTF ???? Did he mount it to where you/he can get to it easier next time ? Ya never know, ya might wany to get a programmer and it would be nice if it was "bolted" down for ease of access.
Ed
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07-04-2008, 10:57 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: 2008 H2 OPD Port Location?
Ted that is a first for me and I hear many wierd things off and on about what people, well mechanics find about new vehicles.
Glad it worked out and tell the Tech to mount it like it should be in case you need to connect. It is easier, I think than with cable port laying around to fall under foot or whatever.
TAZ
__________________
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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