© 2012 Viking Preferred Service
34
Service Diagnostics and Procedures
Relay Board Diagnosis
Checking the door lock position switches
With the door in the unlocked position, the S1 switch
(N.O.) is being activated by the motor cam. Shown
below are the switch positions and wire colors. To
test, ohm out the wires between blue and brown.
The reading should be zero (0) Ω. The S2 switch is
N.O. and will read infinite ohms (∞) when the door is
unlocked.
Shown below is the closed circuit in red.
When the door locks, the S1 switch (N.O.) is no
longer in contact with the motor cam and will read
infinite ohms (∞).The S2 switch is N.O. and should
close when the door is locked. To test, ohm out the
orange and brown. The reading should read zero (0)
Ω when the door is locked.
Shown below is the closed circuit in red.
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