Circuit/System Description: Lock

In order to lock the steering column, the ignition must be in the OFF position. Vehicles with automatic transmission: the gear selector lever must be in the P position to be able to turn OFF the ignition. The Body Control Module (BCM) will then check that the vehicle is stationary and one of the front doors is open. Once these conditions have been met, BCM will send signal to the Steering Column Lock (SCL) to lock.