Set Appliance State:

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

Measurement:

Measure the resistance between the two furthest right terminals on the display PCB.
Expect a resistance of approximately 200 - 300 ohms.
Is the resistance measured as expected?