Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove both ends of the Spark Generator harness from the PCB X2B (5 way connector 6th from the left) and from the Spark Generator
Measurement:
Measure the resistance of each wire and fully inspect the harness for general condition.
Isolate as per TOPs P4
and refit as necessary