2007 hummer h3 vss hookup

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Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=92987
Printed Date: May 01, 2025 at 10:05 PM

Topic: 2007 hummer h3 vss hookup

Posted By: qmechanic
Subject: 2007 hummer h3 vss hookup
Date Posted: April 15, 2007 at 11:54 PM

I'm trying to install an AVIC-D3 head unit (DVD/Nav) and the last connection I need is the VSS. I've read several posts regarding the VSS wiring for an '06 H3, but none of the connectors I have seem to match the colors/descriptions for that year. Would GM change the wiring colors and locations for 2007? I've tried the BCM (passenger kick panel), 2nd radio connector, and instrument cluster plug...but each time I either don't have a wire in the location specified for 2006, or there is no wire that color (GREEN / WHITE). Can someone help to verify where I can connect to the VSS for an '07 model?

Thanks

Replies:

Posted By: qmechanic
Date Posted: May 14, 2007 at 10:15 AM

Has anyone done an aftermarket NAV install on a 2007 H3? Just to add more details to my original post:

Connector C2 (12-pin) at the back of the radio does not have any wires in terminals A-E, although the factory radio I pulled out does have auto volume control (The only option I had for sound was the XM tuner, other than that it is a base radio setup).

I looked at the back of the instrument cluster, and there is an 18pin connector there. but no dark grn/wht wire.

What kind of signal does the VSS carry (DC, AC, resistance)?

I'd really like to get this thing completely hooked up, so any help would be greatly appreciated.

Posted By: mikvot
Date Posted: May 16, 2007 at 10:09 PM

Speed Sense

HUMMER, H3, 2006, Speed Sense
The PCM (Powertrain Control Module) is on the passenger side firewall under the hood.

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