A wiring Question for the older Atwood Electric Jacks

Put an ohm meter on one pair of wires while pressing the drivers side jack switch. If you have the main power wires, you should see some resistance (A few ohms) through the motor coil between the pair of wires.

The passenger side wires will only connect the main wires when the passenger side switch is activated so ohming that wire pair should not “see” the motor coil and will look open circuit no matter which way the passenger switch is moved.