The power door lock system consists of the following components:

The DOOR LKS fuse supplies battery positive voltage to the body control module (BCM) for the power door lock system. The power door locks are controlled by the Keyless Entry Transmitter only. There are no separate driver or passenger door lock switches.

The BCM, upon receipt of a lock or unlock signal from the remote control door lock receiver (RCDLR), will switch the appropriate door lock/unlock relay coil control circuit to ground causing the appropriate door lock/unlock relay to energize. With the relay energized, voltage is applied to the door lock actuator control circuit causing the door to either lock, or unlock depending on what command was received from the RCDLR. When a power door lock/unlock relay is not energized, the switch contacts are normally grounded through the BCM which provides ground to the appropriate door lock actuator for the lock/unlock function being performed. The power door lock/unlock functions are performed by reversing the flow of voltage through the door lock actuator control circuits. The BCM has three internal drivers for the power door lock system. Driver door unlock, passenger door unlock and all door lock. This is done to isolate the driver door lock actuator so it can be unlocked separately from the passenger door. For additional information concerning keyless entry, refer to Keyless Entry System Description and Operation .

This BCM controlled feature can be personalized to driver preference. For more detailed information concerning personalization, refer to Personalization Description and Operation in Personalization.

The BCM will automatically lock the vehicle doors if the following conditions exist:

The BCM will then unlock the doors when the ignition is placed in the OFF position.

This feature will unlock all of the vehicle doors 15 seconds after an air bag deployment.