Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Continuity 
Unplug connector X14 from the PCB
Unplug the connector from the spark generator
Unplug the connector from the spark generator
Measurement:
Measure for continuity (zero resistance) between the ends of each of the wires, in turn, of the harness (pins 3 and 4) running between X14 at the PCB and the spark generator.
Inspect the harness for good overall condition.
Inspect the harness for good overall condition.
Isolate as per TOPs P4
and refit as necessary