Set Appliance State:

Mains Power Off
Set Multimeter to DC Volts Set meter to measure DC Volts
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Measure for DC volts across pins 3 (pink lead) and pin 1 (red lead) of connector CN203.
Expected voltage approximately 12 Vdc.
Is voltage measured as expected?