Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Remove diverter valve motor from manifold (see note1.)
Remove electrical connector from diverter valve motor
Note 1.
Caution, due to the closeness of the PRV securing clip, do not unclip the PRV by mistake

Measurement:

Measure for resistance across diverter valve motor connections as per table below;