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International Automotive Technicians Network
Re: 2009 Hummer H3
Posted to Technical Discussion Forum on 2/13/2018

Hi Y'all

Well I got this truck back in hear and the problem showed up. I was loosing good battery voltage to the ignition switch, so the voltage coming out of the switch to the bcm was changed from the registered value.

The fix was a new negative battery c... Login to read more.