Description & Operation: Notes

WARNING: Vehicles are equipped with air bag supplemental restraint system. Before attempting any repairs involving steering column, instrument panel or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in appropriate AIR BAG RESTRAINT SYSTEMS article.

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

Power door locks are controlled by the Body Control Module (BCM). The BCM contains a Retained Accessory Power (RAP) subsystem. The RAP subsystem allows the door locks to operate for 10 minutes after the ignition is turned off and both of the doors remain closed. The RAP subsystem also allows the door locks to operate for 35 seconds after exiting the vehicle and closing the doors. The door locks are enabled whenever either door is open unless the ignition key is in the ignition and the lockout prevention feature is enabled.

Both door lock actuators lock or unlock when either door lock switch is pressed. The locks are operated by reversible actuators. The door lock switches operate the actuators by applying a ground input signal to the BCM. The BCM then commands the actuators to lock or unlock. When the right door lock switch or the left door lock switch is moved to the lock position, the BCM apples battery voltage to both actuators through circuit 295. See WIRING DIAGRAMS . The actuators are grounded by the BCM through circuit 694 and circuit 1663. When the right door lock switch or the left door lock switch is moved to the unlock position, the BCM applies battery voltage to the actuators through circuit 694 and circuit 1663. Both of the actuators are grounded by the BCM through circuit 295. The ground is supplied to the BCM by G200 through circuit 650.