Door Lock/Unlock Switch Function
WARNING: This page is about a different car, the 2000 GMC Yukon, 2000 Chevrolet Tahoe, 2000 Chevrolet Pickup, and 2000 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Driver's and passenger's door lock/unlock switches are inputs to BCM. BCM will command door lock relay to unlock driver's door according to state of driver's or passenger's door lock switch.