Activate anti-theft alarm system, function - GF80.50-P-2002TA

MODEL 211.0/2 with code (551a) Anti-theft alarm system (ATA) with code (513) Belgium 

Self-activation ATA 

Fig 1: Activate Anti-Theft Alarm System Function Diagram

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Data flow self-activation 

Function prerequisites: 

• Transmitter key (A8/1) removed (circuit 15c OFF).

Activation 

When the transmitter key is removed and the driver's door is open and closed again, the anti-theft alarm (ATA) is activated after approx. 90 s after the last the door is closed, the vehicle is still unlocked.

Self-arming controls a timer in the rear SAM control module with fuse and relay module (N10/2), which starts when the last door, the tailgate (model 211.0) or the rear door (model 211.2) is closed. If a door, the tailgate (model 211.0) or the rear door (model 211.2) is opened during the timer period, the timer stops and restarts when the door, the tailgate (model 211.0) or the rear door (model 211.2) are relocked.

The anti-theft alarm (ATA) is completely ready for alarm after 120 s, the vehicle remains unlocked.