Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Disconnect the plug from the diverter motor
Remove connector LV2 from the PCB

Measurement:

Measure for continuity (zero resistance) on each wire of the diverter valve harness.
Check the resistance between:
Blue to Blue (pin 14 on LV2)
Black to Black (pin 15 on LV2)
Red to Red (pin 16 on LV2)
Green to Green (pin 17 on LV2)
Inspect harness and connector for good overall condition.
Is the harness satisfactory?