Anti-theft alarm system (ATA [EDW]), function - GF80.50-P-0001LE

MODEL 221.0 /1, 216.3 as of model year 09 /YoM 08 with CODE (551) Anti-theft alarm system (ATA [EDW]) 

Antitheft alarm system (ATA) general 

The anti-theft alarm system (ATA) monitors all relevant inputs for their non-actuated state If it detects a change of state in one of the monitored inputs, it triggers a country-specific acoustic and visual alarm.

The acoustic signals are output by the alarm signal siren (H3/1). The visual signals are output country-specific by means of the exterior lights. In addition, the interior illumination (front and rear) is switched on via the overhead control panel control unit (N70). When the panic alarm is activated (with code (763) Radio remote control with panic alarm), the interior illumination is not activated in contrast to the ATA. The rear SAM control unit with rear fuse and relay module (N10/2) has the master function for the ATA.

The ATA, when armed, monitors:

• Doors
• Trunk lid
• Engine hood
• Position change of vehicle (tow-away protection) (except on:
  • Code (494) USA version
  • Code (460) Canada version
  • Code (498) Japan version)
• Voltage supply and data line for alarm signal horn
• Motion in interior compartment (interior protection) (with code (882) Interior monitoring (only with ATA))

The ATA comprises the following partial functions described in separate documents:

• Activate anti-theft alarm system, function
• Anti-theft alarm system trigger, function
• Alarm actuation by panic switch, function (with code (763) Radio remote control with panic switch)