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2003 GMC Sierra BCM replacement

AIphabet
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AIphabet New Member

AIphabet

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Ok, so I want to replace my bcm because it's been messing with my electricals. The door chimes have been coming on randomly and i have dash lights and headlights on after key is off. I am pretty sure it's the bcm. Would it be ok if I were to swap a used one? I know it has to be flashed. What kind of things would I need to look for in a used one? Does the colored block on the part matter? 

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