Triggering alarm with panic switch, function (MODEL 204.0 with CODE 551, MODEL 204.3/204.9 with CODE 763) - GF80.50-P-3014CEU
MODEL 204.0 with CODE (551) Anti-theft alarm system (ATA [EDW])
with CODE (763) Radio remote control with panic switch as of model year 2009/YoM 08
MODEL 204.3 with CODE (763) Radio remote control with panic switch
with CODE (551) Anti-theft alarm system (ATA [EDW])
MODEL 204.9 with CODE (763) Radio remote control with panic switch
with CODE (551) Anti-theft alarm system (ATA [EDW])
Function requirements, general
- Circuit 15C OFF
Alarm triggered by panic switch, general
With the panic alarm button it is possible to trigger the visual and acoustic antitheft alarm (ATA [EDW]) with the transmitter key (A8/1) (e.g. in an emergency).
Function sequence when panic alarm and ATA alarm are triggered simultaneously:
The panic alarm has priority over the ATA alarm.
If both alarms are triggered, the panic alarm is output due to its higher priority. The ATA alarm is suppressed, however, is still present in the background. If an alarm is finished or interrupted, the other alarm continues.
The alarm actuation function with the panic switch comprises the following partial functions:
- Function sequence for actuating panic alarm
- Function sequence for panic alarm output
- Interrupting function sequence for panic alarm
Function sequence for actuating panic alarm
When panic alarm button the transmitter key is actuated for t ≥ 2 s, it transmits a radio signal via the FM, AM and CL antenna amplifier (A2/18) (on model 204.0/3) or rear window 1 antenna amplifier (A2/71) (on model 204.9) to the rear SAM control unit with fuse and relay module (N10/2). It transmits the signal to the electronic ignition lock control unit (N73) via the interior CAN (CAN B).
Parallel to the radio signal, an infrared signal is transmitted to the driver front door infrared remote control receiver (A26/1) (precise aiming required). The left front door control unit (N69/1) reads in this signal and sends it to the electronic ignition lock control unit via the interior CAN.
In both cases the electronic ignition lock control unit checks the access authorization of the transmitter key.
If the access authorization is valid, the electronic ignition lock control unit transmits the command "Panic alarm" via the interior CAN to the rear SAM control unit which activates the ATA.
Additional function requirements for panic alarm output
- Panic alarm triggered
Function sequence for panic alarm output
The alarm output takes place via the exterior lights, the interior illumination as well as up to 31.5.10 via the alarm siren (H3/1) and as of 1.6.10 via the left horn (H2) and the right horn (H2/1).
The alarm siren is actuated by the rear SAM control unit via the rear SAM-LIN (LIN B4).
The horns are actuated by the front SAM control unit with fuse and relay module (N10/1) via the horn relay (N10/1kO).
The interior illumination is switched on by the front SAM control unit.
The following components of the exterior lights are actuated:
- by the front SAM control unit:
- Left front turn signal lamp (E1e5)
- Right front turn signal lamp (E2e5)
- by the rear SAM control unit:
- Left rear turn signal lamp (E3e1)
- Right rear turn signal lamp (E4e1)
The duration of the visual and acoustic panic alarm is the same, however, stored separated in the alarm siren (up to 31.5.10) and rear SAM control unit.
Interrupting function sequence for panic alarm
The panic alarm is interrupted when the panic alarm button on the transmitter key is actuated briefly.
The function sequence for interrupting the panic alarm is the same as for actuating the panic alarm.
| Electrical function schematic for anti-theft alarm system, alarm actuation by panic switch | PE80.50-P-2054-97FAB | |
| Overview of system components for theft protection and locking | GF80.00-P-9999CE |