OK, so we switch to another decoder.
I replicated exactly this same setup.
I VERIFY that the decoder runs a bulb on address 3
I connect the red and black to the track
I connect the orange and gray to the solder pads on the engineer side of the bottom board in the tender near the front. They are labled MOTOR + and -
I REMOVE THE DUMMY BOARD FROM THE BOTTOM BOARD.
I select loco 3 and the loco motor runs, both directions, all speeds.
I go to ops mode and change the address to 4
I select loco 4 and the motor runs, both directions, all speeds.
NOTES:
In this configuration, the positions of the motor switch, or for that matter any switch in the loco are a moot point.
If you fail to remove dummy plug the loco will not run.
I replicated exactly this same setup.
I VERIFY that the decoder runs a bulb on address 3
I connect the red and black to the track
I connect the orange and gray to the solder pads on the engineer side of the bottom board in the tender near the front. They are labled MOTOR + and -
I REMOVE THE DUMMY BOARD FROM THE BOTTOM BOARD.
I select loco 3 and the loco motor runs, both directions, all speeds.
I go to ops mode and change the address to 4
I select loco 4 and the motor runs, both directions, all speeds.
NOTES:
In this configuration, the positions of the motor switch, or for that matter any switch in the loco are a moot point.
If you fail to remove dummy plug the loco will not run.