Door Lock Switches - 2001 Chevy Venture

There was a post in the automotive forums recently saying that the Door Lock Switches in the driver and passenger doors did not operate properly (wound not unlock).
 
Here is some information I gathered from a couple of repair manuals for my own van.

The door locks are controlled by the Body Control Module (BCM).  They will lock or unlock when a few things happen, such as the door lock switch is pressed on either the driver or passenger door (see schematic below).

Here is the schematic for the door lock switches.  Click on it for a larger view.
 Door Lock Switch Schematic

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