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When I plug my RV (tent trailer) into my factory installed electrical receiver on my 2007 Tahoe, only one side works. When I plug it into other vehicles in works perfectly. I took it to the Chevy dealer and they say everyting on the vehicle is fine. Anyone have any ideas???
You have a trailer problem. Start at the plug and work back or open the tail light and check ground and power there. Either way just work your way through the unit. Will need to check the wiring pattern on the trailer plug etc.Good luck