Set Appliance State:

Set Multimeter to Resistance Set meter to measure resistance
Isolate Mains Power to appliance as per TOPs P4
Remove connector plug from PL2 on PCB

Measurement:

Measure resistance between connection 4 (Yellow wire) and connection 8 (Yellow wire) at disconnected plug.
Note:
Measurement taken at disconnected plug not PCB.
Replace connector plug after test.