Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Disconnect the pump connector
Ensure pump speed selector is set to position 3

Measurement:

Measure the resistance across the pump connector as illustrated below.
LeadsApproximate resistance in Ohms
(Test 1) Brown - Blue 160 Ohms
(Test 2) Brown - Earth Open Circuit