Alarm signal horn, function - GF80.50-P-4110-04A

The alarm signal horn with additional battery (H3/1) is connected with the master control module of the anti-theft alarm system (ATA) via a direct line.

Master control module for anti-theft alarm system (ATA) is:

• the combination relay (turn signal indicator with trailer hitch, heated rear window, wiper motor, ATA) (N10/2) on model 129,
• the pneumatic control unit with combined functions (A37) on model 170, 202, 208, 210 or
• the left front SAM control module (N10/6) on model 215, 220.

Activation or deactivation 

The alarm signal horn with additional battery (H3/1) is "activated" by the locking the central locking (CL) of the vehicle.

The alarm signal horn with additional battery (H3/1) is "deactivated" by unlocking or locking the central locking (CL) and on model 215, 220 by inserting the transmitter key (A8/1) into the EIS control module (N73).

Only model 215, 220 with code (763)Radio remote control with panic switch:

The panic alarm can also be triggered when the anti-theft alarm system (ATA) is deactivated.

Self-trigger 

If the alarm signal horn with additional battery (H3/1) detects loss of the power supply or the communication, it outputs an acoustic alarm automatically.

The alarm is not triggered in the event of a "normal" voltage drop by the vehicle battery (e.g. exterior illumination remained switched on).

The connection to the alarm signal horn with additional battery (H3/1) can be interrupted without alarm actuation only in the deactivated state.

Acoustic feedback  (only) 

The alarm signal horn with additional battery (H3/1) outputs a feedback for activation by buzzing three times, deactivation by buzzing once.

Battery charging condition 

The additional battery installed is charged as long as "c. 15 ON" and the anti-theft alarm system (ATA) is deactivated.

The charging state of the battery can be called via the STAR DIAGNOSIS.