Thumper

Voltmeter ! That is, Maybe the best next step would be to see if you can get a voltage reading with polarity for each function to identify which is which... I think also that ground should all be common (connected, showing continuity on the ohmeter. If the rest of the wiring is connected right up forward, you should be able to see voltages on individual wires when you turn on that circuit (constant 12v for running/ light circuit, transient flashing voltage for each turn signal, etc. Label them as you get them identified.

Hey Thumper, I am greatly in need of some help or pointed in the right direction. I changed out my rear turn signals and have been unable to get the wiring right. Now I have everything unplugged including the tail light because when I went to plug in the final 2 wires on the right rear signal, the whole turn signal system (back and front included) went kinda haywire now none of the signals are turning on so I just went ahead and disconnected the whole rear light panel...