Circuit/System Description: Unlock
When the ignition button is pressed, the steering column lock (SCL) unlocks if the transponder is approved. If the car has been parked so that the steering column is straining hard on the lock bolt, it may be that the SCL is unable to unlock. The SCL will then send a message on the bus and the Instrument Cluster will instruct the driver via its display to turn the steering wheel and try again.