Using Identification Transmitter
The identification transmitter sends out a coded signal as soon as the unlock or lock button is pressed.
The signal from the identification transmitter is demodulated and conditioned in the remote control receiver. This signal is then made available to the car access system 2.
All central locking drive units assume the "lock" position during the vehicle locking procedure. The central locking drive units in the doors additionally assume the "central arrest" position.
On conclusion of the central arrest procedure, the locking buttons in the doors are mechanically separated from the central locking drive system. The vehicle can then no longer be unlocked using the locking buttons in the doors.
The trunk lid can also be opened separately with the identification transmitter.
The vehicle can be locked/unlocked with the center-lock button. The CAS 2 receives a high signal (battery voltage approx. 12 V) when the center-lock button is not pressed. The high signal changes to a low signal (approx. 0 V) as soon as the center-lock button is pressed.
The CAS 2 evaluates the change from the high signal to the low signal and locks/unlocks the vehicle. The signal from the center-lock button is looped through the Junction Box Electronics Control Module.
Opening With Remote Control/Identification Transmitter
The trunk lid is opened with the remote control/identification transmitter by pressing on the trunk lid symbol. The trunk lid opens irrespective of whether the vehicle is locked or not.
The motor in the lock of the trunk lid is activated via a power output stage in the JBE in order to open the trunk lid.
Identification Transmitter
The identification transmitter for Comfort Access must be actuated by means of a coded 125 kHz radio signal that is transmitted from the Electronic Outer Door Handle Module or exterior antenna. The coded 125 kHz radio signal enables the ID transmitter to transmits a coded 315 MHz high frequency validation signal that is received by the remote control receiver and forwarded to the CAS2, which determines if the ID Transmitter as valid and belongs to the vehicle.
The ID transmitter is exclusively responsible for use/operation of the Comfort Access System.
The ID transmitter does not need to be operated to enable access to the vehicle, it simply needs be carried on the person that is accessing/operating the vehicle.
The ID transmitter for Comfort Access utilizes a replaceable battery, which is the identifiable difference when compared to the regular remote control that has an integrated rechargeable battery. The ID transmitter for Comfort Access does not need to be inserted in the holder in order to start the vehicle it just needs to be located in the interior of the vehicle in order to start the engine.
The service life of the battery in the ID Transmitter is about 2 years.
Scheme 213
Operation
The slide/tilt sunroof can be operated using the following controls
- Slide/tilt sunroof button
- Remote control/identification transmitter
- Driver's door lock barrel
- Driver's/passenger's outer door handle with comfort access
No Crosswise Operation
If crosswise operation is not implemented (coded - vehicle profile), an alarm is triggered when the anti-theft alarm system is armed or disarmed. This applies to arming with the remote control and disarming via the lock barrel in the driver's door.
The CAS2 detects the unlock status via the driver's door lock barrel, however, it does not unlock the vehicle. The anti-theft alarm system remains armed and triggers the alarm when the driver's door is opened.
This function is coded in the CAS2.
Principles Of Operation
The wipe/wash system is switched on and off with the wiper switch. The wiper switch is an integral part of the steering column switch cluster (SZL).
The rear sun shade can be raised and lowered with the button in the center console. The control button needs only to be pressed briefly. The rear sun shade will move in the opposite direction if the control button is pressed again.