Depending on your meter. Set it to volts ac or Vac or Vac 50 volts or anything higher than 24 volts AC. You want to test for 24 volts or near enough. To keep things simple put one probe on the black wire of the Bonus RE "coil" which probably loops from coil to coil. It may be easier to wrap a bit of scrap wire around the meter probe and tape it up then wrap the other around the black of the Bonus RE coil. This will save having to grow a third arm and a lot of swearing! Now test your meter is working. Touch the other probe on a solid yellow wire which you should see at most relays. This is the main feed and should be powered up all the time. If the meter is working you should get 24 volts or close to on the meter. You will then need to set the game in motion as you have been and after the bonus unit has stepped up put the other probe on the green wire at the out hole switch. You can check both wires at the out hole switch if you want. If you have power on one leg of the switch press the switch an see if you have power one the other side. If you have no power at the switch at all you need to test both sides of the bonus unit zero position make break switch (green and red-black wires.)
