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Old 09-20-2012, 07:05 PM
vanceBMW vanceBMW is offline
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Location: Indiana
 
Join Date: Dec 2009
Posts: 40
Mein Auto: 2003 530i
Edjack, to measure zero or a voltage I need a reference to ground. I see the green wire on the fan side which lines up with the black wire coming from the controller. Is the black wire a ground or neutral? Thanks,
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