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rear marker lamps/license plate lamps help

774 views 0 replies 1 participant last post by  hockeyGTP 
#1 ·
I have a 2004.5 Chevrolet 3500 DRW. The marker lamps on the dually fenders do not light. The rear lamp assembly under the tailgate works. The license plate lamps do not light either. Light bulbs have been replaced. If anybody has any idea of where to start that would be greatly appreciated. Even a wiring schematic would help.
 
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