I have the AB set from about 1996, USA made. When going into reverse, powered A goes into reverse, non powered B lights the backup light.
But pressing again, the B non powered reverse light stays on, and stays on again pressing again, and goes out pressing again.
While doing these three presses, powered A goes forward, then reverse, then forward.
And we are back at the beginning...A forward, B light off.
Very repeatable.
Any ideas?
Other than that, everything is perfect and the non powered A unit I also have with electro coupler works well.
They are all programmed to the same address.