@dc42 Thank you.
If I understand you correctly, the actual stepper motor wire colors should then match the connector color codes on the Duet WIFI wiring diagram?
https://duet3d.dozuki.com/Wiki/Duet_Wiring_Diagrams
The connections would then look like this:
Stepper Motor / Duet WIFI:
B+ (red) / 2B (red)
B- (blue) / 2A (blue)
A- (green) / 1A (green)
A+ (black) / 1B (black)