This procedure can be found on the OpenBuilds Documentation, for further information click here.

Set your multimeter to Continuity / Diode Test mode.

Start with any random wire, and touch that to the Black/Negative probe on your multimeter.

Select any remaining wire and touch it with the Red/Positive probe of your multimeter:

If the multimeter shows [1 or 0L] it means “no connection” - indicating we did not find a coil between these two wires. Some multimeters also “beep” when it does find a connection, so if there is no beep noise, it also could indicate the coil is not between these two wires.

If you see a reading on the multimeter. The actual number does not matter too much, it's more important that it has some low value reading, and that the multimeter no longer displays [1] on the display. Some multimeters may “beep” when you have continuity between the wires (circuit completed by the coil in between).

Segment off these two wires and label them as belonging to a coil. It's important to not lose track of the coil pairs.