Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Disconnect CN1 from the display PCB

Measurement:

Measure the resistance between pins 4 and 5 of CN1 connector.
Resistance should be short circuit (zero resistance).
Note:
This connector will just be a link if no integral timer is fitted.