Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
Set Multimeter to Resistance Set meter to measure resistance
Connect the APS testing kit and FGA to the APS
(positive connections)

Measurement:

Steadily increase the pressure using the syringe to that shown on the APS.
Measure the resistance between pins 6 and 7 on the ignition control box connector.
Continuity / zero resistance should be measured.
Notes:
1. If continuity is not obtained it is permissible to increase the pressure by 50%.
2. 100 Pascals = 1mb / 50 Pascals = 0.5mb.
3. If resistance is as expected note the pressure when this occurred and do not remove kit from APS.