ECC display flashes (Update 3/31/08) - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

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Old 04-03-2008, 11:07 AM   #21
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The HVAC system most likely gets its ground from the ground bus on the passenger side (I would need to look it up to make sure) and if that ground was an issue, tehn I would expect a few other things to be acting up as that is a shared ground for many components. Is there anything else on the car, electrically, doing strange things?
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