Qdm????
deerscoop
12-14-2004, 10:26 PM
Have a 94 Regal, 3.8, four sensor codes, and voltage hi/lo. No prob, find alternator is putting out quite a wide range of amperage, up and down like a yo-yo. Though i believe a new alternator will solve the problem, i don't like not knowing what one of the codes refers to - quad driver module (QDM) what is that???? Thanks for any help.
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