R50 Data For Reference

Antitheft alarm system (DWA) (R50)


Function
Arming the alarm system
The alarm system is armed by locking the driver's door or the passenger's door or by pressing the locking button on the remote control. This activates all the alarm system sensors.
Turning the driver's door lock or the passenger's door lock switch to 'lock' twice within 1 second will arm the alarm system. The interior and inclination sensors are disarmed. This disarming avoids false alarms when the car is parked, for example, in a garage on an inclined surface or is being transported.

Disarming The Alarm System
Pressing the unlock button on the remote control disarms the alarm system.
Unlocking the driver's door or the passenger's door disarms the alarm system.

Triggering The Alarm System
The alarm system is triggered when any of the following states are detected:
- Ignition ON (when alarm system is not disarmed)
- Engine hood OPEN
- Trunk lid OPEN
- Driver's door OPEN
- Passenger's door OPEN
- Inclination sensor triggered (when armed)
- Interior protection triggered (when armed)
The anti-theft alarm horn is sounded and the warning lights flash. The hazard warning lights flash for 30 seconds after the triggering or until the alarm system is disarmed or re-armed.

Inputs and Outputs
The inputs and outputs for the anti-theft alarm function are listed below:
Inputs
Remote locking
Remote unlocking
Driver's door lock switch, lock
Driver's door lock switch, unlock
Passenger's door lock switch, lock
Passenger's door lock switch, unlock
Ignition switch
Central locking code
Engine hood contact
Trunk lid contact
Driver's door contact
Passenger's door contact
Switch for sliding roof locked
Master locking switch
Master unlocking switch
Engine running signal
Triggering inclination sensor
Triggering interior protection

Outputs
Horn or alarm system horn
Horn status
Hazard warning lights
Central locking LED
Voltage supply of the sensors