Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Disconnect connector J3 from the ignition PCB
Observation:
Test 1:
Measure the resistance between the brown and blue wires on J3.
Resistance should be approximately 1.56kOhms.
Test 2:
Measure the resistance between the black and blue wires on J3.
Resistance should be approximately 6.32kOhms
Measure the resistance between the brown and blue wires on J3.
Resistance should be approximately 1.56kOhms.
Test 2:
Measure the resistance between the black and blue wires on J3.
Resistance should be approximately 6.32kOhms
Isolate as per TOPs P4
and refit as necessary