kick on your hazards & see if they flash on the pass side & if so the prob is highly likely in the TS sw as the turn signals/hazards/brake lights use the same large filaments in the 1157 2 filament bulbs. if NO flash seperate the electrical pull apart connector behind the dr kick panel & jump fire to the 1 wire that goes to the pass large filament in the rear bulb. www.mymopar.com will have the colors 4 you. Couldn't tell from your decrip but if the RF turn signal also does not light then there'll b a seperate color wire for it also & ohm it or jump fire to it