GF80.50-P-2004Q Anti-Theft Alarm System Trigger, Function

GF80.50-P-2004Q Anti-Theft Alarm System Trigger, Function
- with CODE (551) Anti-theft alarm system (ATA [EDW])

Component Identification:

Function requirements:
^ Anti-theft alarm system (ATA) is activated.

Alarm actuation via contact switch

If the
^ Left door contact switch (S17/3)
^ Right door contact switch (S17/4)
^ Engine hood ATA switch (S62)
^ Lock pawl rotary tumbler switch (S88/4)
exits its non-actuated state for longer than 0.5 s, an alarm is triggered.

The rear SAM control unit with fuse and relay module (N10/2) initiates an acoustic and a visual alarm.

Alarm actuation with alarm signal siren (H3/1)
The alarm signal siren (H3/1) is actuated cyclically by the rear SAM control unit with fuse and relay module (N10/2). If the alarm signal siren (H3/1) does not respond within 1 s, the rear SAM control unit with fuse and relay module (N10/2) outputs a visual alarm.

Vehicles except United States Of America and Japan, as of 1.9.06:
If the alarm signal siren (H3/1) detects loss of the supply voltage or the communication itself, it automatically outputs an acoustic alarm.

Alarm actuation by tow-away protection (as of 1.6.06 not United States of America and Japan)
The rear SAM control unit with fuse and relay module (N10/2) checks the input of the ATA inclination sensor (B33) several times per second. If the ATA inclination sensor (B33) detects a position change of the vehicle, an alarm is triggered.
The tow-away protection function can trigger a maximum of three alarms in sequence. Then the ATA must be reactivated for realizing this function.

Alarm triggered by interior protection (with code (882) Interior monitoring (with ATA only))
The rear SAM control unit with fuse and relay module (N10/2) checks the input of the ATA inclination sensor (B33) several times per second. If the ATA inclination sensor (B33) detects a position change of the vehicle, an alarm is triggered.
The tow-away protection function can trigger a maximum of three alarms in sequence. Then the ATA must be reactivated for realizing this function.

Alarm triggered by interior protection with code (882) Interior monitoring (with ATA only))
The alarm decision is accomplished by considering the duration and the speed of the motion in the interior compartment. If the interior protection transmitter and receiver (A26/14) recognizes a break-in into the vehicle, the rear SAM control unit with fuse and relay module (N10/2) activates an acoustic and visual alarm.

On vehicles as of 1.6.03 with code (414) Power glass tilting/ sliding roof (not United States of America), the interior protection is deactivated during rain closing (an open sliding roof is moved to the tilt position). After the actuation is completed, the interior protection is activated again.
The interior protection function can trigger a maximum of three alarms in sequence. Then the ATA must be reactivated for realizing this function.

Alarm actuation by trailer monitor (with code (550) Trailer hitch)
The lines are monitored for discontinuity by applying a control voltage from the trailer recognition control unit (N28/1) to trailer loads.
If a line interruption is detected, the status "Trailer not recognized" is transmitted to the rear SAM control unit with fuse and relay module (N10/2) via CAN B (CAN).
It then starts an acoustic and a visual alarm.

Acoustic alarm
The acoustic alarm is output via the alarm signal siren (H3/1).

Alarm duration
All countries: approx. 30 s

Visual alarm
The alarm output is actuated by the rear SAM control unit with fuse and relay module (N10/2). The type of alarm and alarm duration are stored in the rear SAM control unit with fuse and relay module (N10/2).

Alarm duration
Vehicles with United States of America version: approx. 150 s
Other countries: approx. 300 s

Interior illumination actuation
The interior illumination is switched on by the overhead control panel control unit (N70), without dimming, for the duration of the visual alarm.

Actuation of exterior lights (not United States of America)
The visual alarm is accomplished when the
^ left turn signal lamp and right turn signal lamp are actuated by the front SAM control unit with fuse and relay module,
^ left turn signal lamp and right turn signal lamp are actuated by the rear SAM control unit with fuse and relay module (N10/2),
^ left outside mirror turn signal lamp is actuated by the left door control unit,
^ the right outside mirror turn signal lamp is actuated by the right door control unit
for the duration of a visual alarm.

Actuation of exterior lights ( United States of America)
The visual alarm is accomplished when the
^ the left taillamp and parking lamp and the right taillamp and parking lamp are actuated by the rear SAM control unit with fuse and relay module (N10/2),
^ left front fog lamp and right front fog lamp are actuated by the front SAM control unit with fuse and relay module
for the duration of a visual alarm.

Alarm interruption
The alarm can be interrupted by actuating the "Lock" or "Unlock" buttons on the transmitter key.
When interrupted by actuation of the "Lock" button the ATA remains active.