Quoted from Premier:Hey to all
I have no lights on on the left 2 bumpers i change the bulbs only the bottom bumper light is working any ides whats the problem?
First thing I'd look at are the wires on the lamp sockets on the pop bumpers, these can come loose or break. If it's not that do an all lamp test to see if there are other lights out, without looking at my schematics I'm certain those lights are on another string of lights so check fuses and probably molex connector j112.