[bmwx1p]

Hey,

Heed some help please!

I have a 2020 X1 and trying to figure out the wiring for the rear tail lights. For some reason my 2020 has only have 3 wires to each plug attached to eachtail light; Black/Yellow Gray/Purple and Solid Brown - same for the both left and right rear lights. I am also installing a Tekonsha Part #: 119190 to wiring protection but is need 4 wires, stop, running, left and right but this x1 has only 3 wires on each side vs 4 light most videos I have seen. BMW have done something different that the 2017 video I seen by using one less wire.

Here want the x1 has: starting from left side on the suv.
1 wire. Gray/Purple - looks like the tail light circuit / running lights.
2 wire. Black/Yellow - looks like the stop BUT I can also left signal and the hazards show voltage on the same wire. is it possible bNW is using the same wire to 2 functions? stop and signal?
3 wire. Solid Brown - I have no idea what that one is for out of the 3.

As this point I want to I need running, stop, left and right final from 3 wires.

Anyone have any suggestions please.