Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Remove connector CN7 from the PCB
Remove the connector from the diverter motor

Measurement:

Measure the resistance between each of the pins on CN7
and the diverter motor connector as listed below:
Connector CN7Diverter valve Connector
Pin 46 (Brown) Pin 1
Pin 47 (Blue) Pin 2
Pin 45 (Black)Pin 3

Expect continuity on each test.
Also inspect the condition of the harness, visually checking
for any damaged insulation.