Peugeot 405 Manual

Anti-theft alarm system - general information
Body electrical system / Anti-theft alarm system - general information


Note: This information is applicable only to the anti-theft alarm system fitted by Peugeot as standard equipment.

General
1 Some models in the range are fitted with an anti-theft alarm system as standard equipment.

The alarm is automatically armed and disarmed using the remote central locking transmitter (where applicable). When the system is activated, the alarm indicator light, located on the facia, will flash continuously. In addition to the alarm function, the system also incorporates an engine immobiliser.

2 Additionally, certain petrol engine models are fitted with a coded engine immobiliser device, operated by a key pad in the centre console.

Anti-theft alarm system
Early models
3 Note that if the doors are operated using the key, the alarm will not be armed or disarmed (as applicable). Locking the doors with the central locking remote transmitter is the only means of activating the alarm system.

4 The alarm system protects the doors and boot or tailgate, as applicable.

5 Should the alarm system become faulty, the vehicle should be taken to a Peugeot dealer for examination.

Later models
6 Note that if the doors are operated using the key, the alarm will not be armed or disarmed (as applicable). If for some reason the remote central locking transmitter fails whilst the alarm is armed, the vehicle must be unlocked using the key. In this case, the alarm system will activate, and must be disarmed using the master switch (see paragraph 8).

7 The alarm system has switches on the bonnet, tailgate and each of the doors. It also has ultrasonic sensing, which detects movement inside the vehicle, via sensors mounted on either side of the vehicle interior. If required, the ultrasonic sensing facility can be switched off, whilst retaining the switched side of the system. To switch off the ultrasonic sensing, with the ignition switch off, depress the alarm switch (mounted on the right of the steering column) until the alarm indicator light on the facia is continuously lit. Now, when the doors are locked using the remote central locking transmitter, and the alarm is armed, only the switched side of the alarm system is operational (and the alarm indicator light will revert to its flashing mode). This facility is useful, as it allows you to leave the windows/sunroof open, and still arm the alarm.

If the windows/sunroof are left open with the ultrasonic sensing not switched off, the alarm may be falsely triggered by a gust of wind.

8 To deactivate the complete alarm system, a master switch is provided in the engine compartment, behind the left-hand headlight.

The switch is operated by a dedicated key, and is protected by a plastic cover.

9 Should the alarm system become faulty, the vehicle should be taken to a Peugeot dealer for examination.

Coded engine immobiliser Warning: Do not forget the immobiliser code - if the correct code cannot be entered, the engine management electronic control unit must be renewed.

10 This device cuts out the engine management system, and prevents the engine from being started unless a confidential code is keyed into the pad located in the centre console.

11 The code can be chosen by the owner, and full details are given in the vehicle handbook.

12 When the ignition is turned on, if the green light on the key pad is illuminated, the system is not working, and the engine can be started normally. If the red light is illuminated, the system is working (the engine cannot be started, and the alarm will sound if starting is attempted).

13 To de-activate the system, enter the correct code, which should be confirmed by four flashes from the green light, and four beeps. The red light should go out, and the engine can them be started.

14 If the wrong code is entered, the red light will stay on, and the engine cannot be started.

Disconnecting the battery Early models
15 If the battery has been disconnected, when it is reconnected, the alarm will be activated.

16 The alarm must be de-activated using the remote central locking transmitter.

Later models
17 The following precautions should be observed when disconnecting and reconnecting the battery leads on a vehicle equipped with an alarm system.

18 Before disconnecting the battery, deactivate the alarm siren, using the dedicated key.

19 When reconnecting the battery, as soon as the battery is connected, the alarm is automatically activated. Use the remote transmitter to turn off the alarm, then activate the alarm siren using the dedicated key.


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