Alarm System Diagnosis

Component Arrangement







Function of individual components

1. Control module
Processes the incoming signals and, if necessary, triggers an alarm.

2. Alarm readiness light

Function 1
Display of the locking state.

Function 2
Display of the operating state of the alarm system.

Six display types are possible:
- Normal flashing (0.5 Hz)
- Double flashing (0.5 Hz)
- Rapid flashing (2.0 Hz)
- Rapid flashing (10.0 Hz)
- On
- Off

3. Central locking button
The doors can be locked and unlocked with the central locking button.

4. Door lock module
The door lock modules (driver's/passenger's door) each contain 5 micro switches:
- 1 switch for priming the system (ground pulse).
- 1 switch for deactivating the system (ground pulse).
- 1 switch for recognising door closed.
- 1 switch for recognising door locked.
- 1 switch for recognising door secured.

5. Switch, luggage compartment lid, rear
The switch connects ground to the control module.

6. Switch, luggage compartment lid, front
The switch connects ground to the control module.

7. Switch, oddments tray
The switch connects ground to the control module when the oddments tray is opened.

8. Passenger compartment monitoring sensor
The passenger compartment monitoring sensor connects ground to the control module when movement is detected in the vehicle.

9. Radio alarm contact
The alarm contact on the radio mounting frame connects ground to the control module when the radio is removed from the frame.

10. Switch, convertible top compartment cover
The switch connects ground to the control module.

11. Switch, convertible top closed
The switch connects ground to the control module.

12. Alarm horn
In the event of an alarm, the horn is supplied with positive potential by the control module.

NOTE: If the positive supply for the alarm horn is interrupted, the visual alarm is triggered via the direction indicator lights and the interior lights.

13. Signal converter
The signal converter obtains the transponder code from the signals sent by the transponder, and then sends this code on to the alarm control module.

14. Transponder coil
The transponder coil reads the transponder code out of the transponder.