Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Disconnect connectors on the spark generator

Measurement:

Test 1:
Measure the resistance between the spades
marked 1 and 2 on the spark generator
Resistance should be greater than 1M Ohm.
Test 2:
Measure the resistance between the spades
marked 1 and 4 on the spark generator.
Resistance should be approximately 0.9M Ohms or greater.
Test 3:
Measure the resistance between the spades
marked 2 and 4 on the spark generator.
Resistance should be greater than 1M Ohm.