I'd seperate the TS/brake dangling pull apart connector under the steering column and (1) working with the column half of the connector with the stalk in nuetral there should be continuity between the white wire (which is the power in from the brake pedal switch) and 2 of the colored wires (A B) which are the L/R rear brake lights. raise the stalk & one of those 2 colored wires (A or B) must go dead and another (C) is now hot. move the stalk down and the other one (B or A) of those 2 colored wires goes dead & the original one that went dead is now hot again & (C) (out to the flasher) is still hot. (2) Working with the body half of the connector jump fire to the wire for (A) the left brake light (B) the pass brake light (C) the tail/lic plate lights (all on 1 wire). This'll tell you if the problem is in the TS switch/harness or rearward in the body wiring. www.mymopar.com will have the colors for you. You can also seperate the harness behind the drivers kick panel to narrow it down if it is a body harness problem