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International Automotive Technicians Network
Re: 03 GMC Savanna B2957
Posted to Technical Discussion Forum on 4/14/2006

Hi Kerry,

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orn/wht should be 12V, yel should be 5 volts or less with key ON. Should be a steady value between .5 to 4.5 volts, approx. That's your passlock code. Check connector C200 at the base of s... Login to read more.