Steering Column Lock: Notes

The BCM controls the voltage provided to the steering column lock module using a relay and communicates with it over a LIN. The BCM monitors input from various systems to determine when to send a command to lock or unlock the steering column. The steering column lock module locks and unlocks the steering column as directed by commands received from the BCM.

If the BCM detects a fault from the steering column lock module or the LIN, the BCM prevents the vehicle from starting.

The BCM does not provide power to the steering column lock module when the vehicle is moving or the engine is running.