Operation CHARM: Car repair manuals for everyone.

Circuit Description

IMPORTANT: The power door locks are controlled by the Body Control Module (BCM). The BCM allows the door locks to operate for 10 minutes after the ignition is turned off and both of the doors remain closed. The BCM 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. Refer to Retained Accessory Power (RAP) Circuit Description in Retained Accessory Power for a complete understanding of RAP operation.

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, ground is applied to the BCM lock input through circuit 780. The BCM then applies battery voltage to both actuators through circuit 295.The actuators are grounded by the BCM through circuit 694 and through circuit 1663.When the right door lock switch or the left door lock switch is moved to the unlock position, ground is applied to the BCM unlock input through circuit 781.The BCM applies battery voltage to the actuators through circuit 694 and through 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.