Уважаемый Саша ( не знаю вашего настоящего имени ) Вы сколько лет занимаетесь ремонтом автомобилей ?
Альберт Дзундза
All of the doors, the trunk lid and fuel tank flap can be locked and If the LED does not come on momentarily, replace the batteries.
unlocked centrally with the radio frequency remote control. An
opening signal is transmitted to the IMM + DAS control module i
(A25) by the transmitter integrated into the key (1) when it is folded Battery replacement should not take longer than approx.
out. This signal activates the central locking and unlocks the doors. 1 minute.
Folding in the key transmits a locking signal to the control module
(A25), which activates the central locking and locks the doors.
When the key is folded in and out a LED in the transmitter comes i
on momentarily. This flashing serves as a confirmation signal and Convenience locking cannot be accomplished with the radio
provides information on the state of the transmitter batteries. frequency remote control (not legally permissible).
The radio frequency remote control can only be operated with the If the remote control is actuated outside of the reception area, the
transmitter belonging to the vehicle, because the transmitter and current remote control signal changes in the remote control,
the radio frequency remote control immobilizer and drive however, not in the control module. When the remote control is
authorization system control module (IMM + DAS, A25) are used again within the reception area, the remote control signal in
matched to one another. the remote control no longer coincides with the signal expected by
When the key is folded in or out the remote control sends a signal the control module. However, since the control module can
to lock or unlock the vehicle. The IMM + DAS control module (A25) calculate the next 255 codes, it automatically synchronizes to the
checks this signal. If it is valid, a signal is relayed to the central current remote control signal.
locking/extended central locking control module (A8/A19) to lock or If the remote control is actuated more than 255 times outside of the
unlock the doors. reception range, the receiver can be resynchronized to the remote
The remote control signal consists of a fixed code which is also control by actuating the remote control twice within 7 sec.
coded by a processor. This additional coding changes each time
the system is operated. This makes it impossible to decode the
remote control signal. The control module (A25) decodes the
remote control signal and, if the fixed code is valid, actuates the
control module (A8/A19), the immobilizer and the ATA.
Simultaneously the control module switches to the next remote
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control signal and writes over the previous remote control signal.
Signals from a remote control are evaluated by the control module
only when the ignition is switched off.
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Immobilizing and releasing keys
A system consists of one control module and two keys. If a key is 3 Using the same key a further 3 times within 6 seconds.
lost (loss/theft), this key can be immobilized by means of a specific 4 Waiting for 10 seconds.
procedure for the radio remote control and the immobilizer: 5 Using the existing key at least once within 20 seconds.
1 Switching the ignition on and off twice within 6 seconds. A key which has been immobilized can be released again by
2 Operating a released key within 3 seconds from "ignition off". following the same procedure where it is used in phase 5.
Radio frequency remote control transmitter Function diagram on example of
vehicle unlocking by radio
Press transmitter frequency remote control
button
Radio signal
Antenna
Electronic control Radio frequency remote control +
decodes signal immobilizer control module
Actuators unlock Locks
Bidirectional line
Electronics controls Relay in pole reversal
circuit
CL control module/extended central locking system
Mechanical function
Electrical function Tank flap actuator unlocks Tank flap