Has anyone here ever used one of those adapters for connecting the bus signals and brake lights together? How do the lights flash when you step on the brake and at the same time have either the left or right signal on?
My thoughts are it would alternate bus on trailer off and then bus off trailer on and so on.
And then with the brakes released the signals would flash at the same time. Can someone confirm this is the way those work or not. If it is the way it works I just came up with a way to duplicate that using three 5 position relays, which would be useful since there are a good number of buses that had these for the 8 way lamps.
Here is my cheesy diagram. I hope it is understandable.The two wire from the left are, the red is a constant power and the black is ground.
edit: I had a couple wires wrong on the picture so I changed it.