CAS Authentication to Prevent Tampering

CAS Authentication to Prevent Tampering
To prevent the DWA from being easily disarmed by the central locking and tailgate status message Central locking control using a CAN tool, the CAS authenticates itself with the DWA.
Each time an unlocked vehicle is locked for the first time, the CAS sends an authentication to the DWA. Any further locking signals are then no longer accepted.
When the system is disarmed, the DWA expects the CAS to again send authentication with the first locking operation.
The system permits two disarming attempts with the wrong authentication, after which an alarm is issued.