Crash unlocking
A crash is detected by the passive safety system ASE (= Advanced Safety Electronics). The crash signal is reported by the safety and gateway module (SGM) to the CAS control unit. The message is sent on the KCAN. The CAS control unit unlocks the vehicle.
All operating points are disabled when there is a crash signal. This prevents unintentional actions of the central locking system from occurring due to short circuits caused by the accident.
The central locking system can only be reactivated after a crash once terminal R has been switched off for at least 3 seconds.