Interior Door Lock Switches
In the LOCK position cavity A of the switch should have continuity to cavity B and to ground.
In the UNLOCK position cavity A of the switch should be open to cavity B and to ground.
In the UNLOCK position cavity C of the switch should have continuity to cavity B and to ground.
In the LOCK position cavity C of the switch should be open to cavity B and to ground.
Cavity B of the switch should have continuity to ground at all times.