Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Remove high voltage connector to pump, With the aid of a screwdriver carefully remove the cover (as illustrated)
Measurement:
Measure the resistance (continuity) across the pump harness leads.
Connections are;
CN2 pins 1 & 4 to the corresponding connection at the pump wiring.
Expected resistance is continuity (zero resistance) across each wire of the harness.
Connections are;
CN2 pins 1 & 4 to the corresponding connection at the pump wiring.
Expected resistance is continuity (zero resistance) across each wire of the harness.
Isolate as per TOPs P4
and refit as necessary