Access/Start Authorization

Access/Start Authorization

The KESSY system (Keyless Entry Start Stop System) regulates keyless opening, locking and vehicle start-up.

Opening:

The ID sensor in ignition key must be located within reception range of lock location (approximately 1.5 meters). Grasping the door handle activates the proximity sensor on the inside of the door handle, ID sensor in ignition key is triggered and the door is unlocked immediately upon valid identification. Pulling door handle opens the vehicle.

Starting:

The ID sensor in ignition key must be located in the vehicle interior. When sliding in the start button to the second engaged position of electronic ignition switch, the ID sensor in ignition key is triggered and steering is unlocked and start authorization is achieved upon valid identification.

It is only possible to start engine with ignition/starter switch in electronic ignition switch when a valid ID sensor is located in the vehicle interior.

Locking:

The ID sensor in ignition key must be located within reception range of lock location (approximately 1.5 meters). Touching the lock sensor on the outside of the door handle activates the lock sensor, the ID sensor in ignition key is triggered and the vehicle locks upon valid identification.

Ignition key:

The ignition key is designed without a key bit since the vehicle is started for the first time with a sliding motion and not a rotary motion. On vehicles with KESSY equipment, switch procedures in ignition lock are performed by a ignition/starter switch button. This ignition/starter switch button remains in the ignition lock and functions only in conjunction with a valid ID sensor in the remote control ignition key. Switch-on of the various terminal voltages (terminal S, terminal 15) and the start procedure are performed by a sliding motion of the ignition/starter switch button in the Electronic Ignition Switch (D9). The following switch positions are possible via sliding motions of the ignition/starter switch button:

• P0 - Off (preliminary engaged position)

• P1 - S-terminal on

• P2 - terminal 15 on

• P3 - terminal 15 drive (in this position, ignition key springs back automatically after the start procedure)

• P4 - terminal 50 on

All access/start authorization functions are actuated via the Comfort System Central Control Module (J393), refer to => [ Comfort System Central Control Module ] Description and Operation.