Flasher/signal weirdness

By screwing with controls settings as you described, you are sending yourself down the wrong path. First, there are TWO flashers. One for signals, one for hazards. You need to find the hazard flasher. It should have power at all times, and you can swap the turn and hazard flashers to test.

Circuit works like this. You have a toggle on the dash, with four terminals. When off all for are isolated. When energized, all 4 are connected. One is the output from the hazard flasher, another goes to left front, yet another goes to right front, and the last goes to the brake switch common line. The turn switch MUST be centered for the hazards to work, as the TS switch routes brake power to the two rears. Your foot MUST be OFF the brake switch, or the hazard flasher output will be in paralled with brake switch power, and all four lamps will come on and stay, as long as the pedal is depressed.

DO YOU HAVE a factory service manual and or wiring diagram? You can download them, free, from MyMopar.com