Pre-Drive Check

When KL R is switched on, a self-diagnosis of the overall systems is carried out. During this period the system cannot be triggered.

This is indicated by activation of the airbag warning lamp AWL. The total duration of a fault-free pre-drive check is less than five seconds.

The pre-drive check is divided into two phases.

The pre-drive check only starts when the SIM has received the first control unit status messages from all of the satellites known by coding and no fault has been communicated.

If the status message of a module is not received or if a fault has been communicated, the power supply of the satellite module is switched off.