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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.

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Does the dummy have a LCRX in the B unit?  If so it is operating in conventional mode.  Is the antenna connected?  Try resetting it.  Otherwise I have seen the LCRX have poor sensitivity and you need to replace it.

 

Also, how the harness is connected controls how the lights work on the older LCRX.  Similar to the wiring used on early LCRU with the pins.  G

Last edited by GGG

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