Drivers door window motor is definitly good. All switches on the master switch assy work except the drivers door switch. Replaced master door switch assy with one from a salvage yard. Worked about 12 times and quit. Can't find a schematic diagram to include the master switch assy. Is there a module somewhere other than the master sw assy.
How long has your 2007 Buick Lucerne had this problem?
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