Terminal Selection

Terminal Selection

The terminal statuses are selected when the brakes are not actuated by touching the start/stop button. A valid key must be locked in place. The terminal statuses are run through as follows:

Ignition "off"(terminal 30) -> terminal R -> terminal 15 -> terminal R -> ignition "off"




Starting the Engine

The vehicle engine can be started from all terminal statuses when

- A valid remote control is inserted and locked in the ignition switch
- The brake pedal is actuated.

If the brake-light switch is defective or disconnected, an actuation of the brakes is detected by the DSC control unit via the brake pressure sensor.

- The P or N position of the transmission is detected via the EGS (TCM).

Switching off the Engine

The vehicle engine is switched off when the vehicle is stopped and the start/stop button is pressed.

If the start/stop button is pressed for longer than 2 seconds, the vehicle engine is switched off and then the key is automatically released and pushed out with spring pressure ("convenience off").

After the vehicle engine is switched off, the CAS is in KL "R"(operational readiness for windscreen wipe, radio, airbag).

Incorrect Operation and "Emergency On"

To ensure the safety of the vehicle in the case of an accidental engine shutdown during driving, the "Emergency On" function is available.

An engine shutdown during driving can be caused by accidentally pressing the start/stop button (the start/stop button must be pressed for at least 1 second or 3 times consecutively).

The "Emergency On" function enables the starter to be actuated again without brake operation at a vehicle speed above 5 km/h (3mph). The "Emergency On" function also prevents terminal R from being switched off during driving.

Automatic Release with Missing Transponder

To protect against damage, tampering or incorrect operation, the remote control in the ignition switch is automatically released when:

- The transponder is no longer detected with terminal R "on"
- The vehicle is stopped
- The transmission is in the park position.

The authentication (validity test) of the transponder is carried out every 500 milliseconds within the first 10 seconds. Then the authentication takes place every 3 seconds.