Identification
Identification
The part numbers and the system designation (I32/I48) can be read out under the Identification menu item.
Activating interior lights
The interior lights are not controlled directly by the door contacts. The interior lights are switched on.
- When the central locking system is unlocked with a key or via radio transmitter.
- When the doors are opened.
- When pin 86 S is switched off.
The interior lights are switched off (doors closed).
- 30 seconds after the central locking system is unlocked with a key or via radio transmitter.
- 30 seconds after the last open door has been closed with pin 15 and pin 86 S switched off.
- If both doors are closed with pin 15 and pin 86 S switched on.
- After the last open door has been closed with pin 15 and pin 86 S switched on.
- When the central locking system is actuated to Locked or Safe via hand-held transmitter or door lock barrel and with both doors closed.
- When the last door has been closed, if one door was still open when the central locking system was actuated to Locked or Safe via hand-held transmitter or door lock barrel.
The interior lights switch on and off dimmed.
Passenger compartment monitor
The function of the passenger compartment monitoring sensor can be checked under the "Passenger compartment monitor" menu item. When movement is detected in the passenger compartment, the alarm horn is activated briefly while the interior lighting and direction indicator lights go on continuously.
Tilt sensor (country version)
The external tilt sensor is active along with the Control of External Electronics output. During this time, a change in the vehicle tilt triggers an alarm. The current tilt of the vehicle is stored as a reference value during a calibration phase defined for the tilt sensor. The system has an alarm siren with a rechargeable battery supply which can emit an alarm if the vehicle battery is removed.
Power-on behaviour
After the operating voltage is switched on, the system is set to the operating state which it was in before the supply voltage was switched off.
For this purpose, all necessary operating parameters are stored in a permanent memory. If the system was disconnected from the supply in the armed state, this is entered as a fault in the status memory. The same applies if the system is disconnected from the supply voltage during an alarm output. The alarm output is continued as soon as the necessary supply voltage is available.
Activation status memory
The alarm-triggering components that are in the non-active state during alarm system activation and that are therefore blocked for alarm triggering are stored in the activation status memory. The activation type is also saved. If the vehicle is secured, e.g. by remote control, and the oddments tray is open, this is indicated by a brief horn signal from the alarm system control module. This status is stored in the activation status memory under Oddments tray activation type: - by remote control-. This function can be used in troubleshooting, in so far as a faulty micro switch or faulty wire can cause the horn signal. Reading out the activation status memory can help to track down the faulty alarm-triggering component, e.g. front lid, rear lid, oddments tray, etc.
Play prevention
If the central locking system is actuated 11 times in less than 5 seconds, further operation is blocked for 30 seconds. If the last command before play prevention activation was a command to open the central locking system, then it is possible to give a further command which is independent from play prevention to close the system. For every further time that play prevention is activated, the blocking time is doubled, up to a maximum of 240 seconds. The blocking time is cleared when a door is opened, and if play prevention is activated again, blocking time starts at 30 seconds.
System description
The following functions are integrated in the alarm system control module:
- Alarm system
- Immobilizer
- Radio receiver
- Central locking
- Comfort control
- Passenger compartment monitoring
Versions of the control module
Functions of the alarm system
- Monitoring of the outer shell of the vehicle via contact switches.
- Attempted break-ins are detected and indicated by audible and visual signals.
- The alarm horn, alarm siren (country regulations) and interior lights are activated for alarm output. The system can be enhanced by connecting additional sensors (glass breakage sensor, tilt sensor).
Functions of the central locking system
Unlike previous systems, a two-motor lock is used here.
- Locked motor
- Safe motor
The locked motor switches the central locking system from unlocked to locked and vice versa.
The safe motor switches the central locking system from locked to safe and vice versa.
The central locking system has three different locking conditions.
- Action 1. If the lock is actuated once, the so-called Safe locking - door secured function is activated. The doors can be opened only with the key, but not with the inside door handles.
- Action 2. If the door lock is actuated twice within 1 second, the vehicle is not accessible from the outside, but can be unlocked using the inside door handles.
- Emergency locking. Emergency locking is triggered by actuating the door lock three times and represents an emergency function. If the functional capability of the overall system is impaired because, for example, one door cannot be closed, it is still possible in this way to activate the other security functions. Point 1 is activated when the system is operated via the hand-held transmitter. The position of the doors is checked by limit switches in the lock.
The conditions for a locking process from Unlocked to Locked are listed in the following table.
Unlocked -> Locked
Triggering condition Requirements
Door lock barrel:2 - Driver's door closed.
Central locking action 2 - Pin 86 S off.
- Pin 15 off.
- No valid transponder (no ignition key inserted).
Radio transmitter: - Driver's door closed.
Central locking action 2 - Pin 86 S off.
- Pin 15 off.
- No valid transponder (no ignition key inserted).
Door lock barrel: - Possible at any time.
Emergency locking
Central locking switch: - Driver's and passenger's door closed.
Actuated to Closed. - Pins 86 S and 15 were deactivated for at least 2 seconds after crash unlocking.
Speed > Vgr (version coding). Driver's and passenger's door closed.
- Pin 15.
- Pin 86 S.
- Pins 86 S and 15 were deactivated for at least 2 seconds after crash unlocking.
Pin 15 on (version coding). - Driver's and passenger's door closed.
- Pins 86 S and 15 were deactivated for at least 2 seconds after crash unlocking.
The conditions for a locking process from Unlocked to Safe are listed in the following table.
Unlocked -> Safe
Triggering conditions Requirements
For all triggering conditions from See Unlocked -> Safe
Unlocked -> Safe for central
locking system elements without
Safe position (country version).
twv1 following central locking Following radio actuation.
system radio unlocking. - No door was opened.
- No pin 86 S was recognized.
- No pin 15 was recognized.
- No other central locking system actions were performed. Central locking system was set to Safe or Locked position before radio unlocking.
Door lock barrel: - Driver's door closed.
Central locking action 1
- Pin 86 S off.
- Pin 15 off.
- No valid transponder (no key inserted).
- Not possible when coding central locking system elements without Safe position.
Radio transmitter: - Driver's door closed.
Central locking action 1 - Pin 86 S off (for at least 2 seconds).
- Pin 15 off, not possible when coding central locking system elements without Safe position.
- No valid transponder (no key inserted).
- Not possible when coding central locking system elements without Safe position.
twv1 = re-locking time, can be coded.
The conditions for a locking process from Locked to Safe are listed in the following table.
Locked -> Safe
Triggering condition Requirements
Door lock barrel: - Driver's door closed.
Central locking action 1 - Pin 86 S off.
- Pin 15 off.
- No valid transponder, not possible when coding central locking system elements without Safe position.
The conditions for a locking process from Safe to Locked are listed in the following table.
Safe -> Locked
Triggering condition Requirements
Central locking system was As for Unlocked -> Safe
unlocked, door lock barrel
or radio transmitter actuated
twice in 1 second, the central
locking system lock is already
in Safe position after the first
actuation and before the second
actuation is detected.
Central locking system is already As for Unlocked -> Safe
in Safe position and door lock
barrel is actuated to Closed
twice in 1 second.
Safe position of a door is - Pin 15.
detected while pin 15 is on.
- At least one door in Safe position.
- Alarm system is not activated.
Pin 86 S on. Within 10 seconds or in the inactive period after the locking command is given once.
Pin 15 on or valid transponder.
A valid transponder is detected. Alarm system is activated.
- One door was unlocked mechanically.
- Other door is in Safe position.
IR sensor detects movement. - System is in time window for movement detection.
The conditions for a locking process from Locked to Unlocked are listed in the following table.
Locked -> Unlocked
Triggering condition Requirements
Door lock barrel: Not for coding variant deactivate only via radio, if alarm system is activated.
Actuated to Open.
Radio transmitter: - Pin 86 S off (for at least 2 seconds).
Actuated once.
Central locking switch: - Both doors closed and
Actuated to Open. - Locking was also performed using central locking switch or
- After locking with pin 15 on or
- After locking via speed signal.
A door is unlocked using inner - Locking was performed either with
actuating mechanism. central locking switch or
- Pin 15 After a valid transponder is detected or
- After locking with pin 15 on or
- After locking via speed signal.
Crash signal - Pin 86 S or
- Pin 15
Desired locked position Not possible with emergency function or if central locking switch is actuated.
is not achieved.
The conditions for a locking process from Safe to Unlocked are listed in the following table.
Safe -> Unlocked
Triggering condition Requirements
Door lock barrel: Not for coding variant deactivate only via radio, if alarm system is activated.
Actuated to Open.
Radio transmitter: - Pin 86 S off (for at least 2 seconds).
- Actuated once.Pin 15 off.
- No valid transponder.
System test
All components of the alarm system (except for terminal 15) can be checked for operation under the System test menu item. During the system test, a bar runs across the screen, and if, for example, the oddments tray is opened, an alarm is triggered. This alarm output differs from the usual alarm output in that the alarm horn is activated only for a short time. The alarm output is accompanied by interior lighting and direction indicator lights.
NOTE: The function of the passenger compartment monitoring sensor can be checked under the "Passenger compartment monitor" menu item. When movement is detected in the passenger compartment, the alarm horn is activated briefly while the interior lighting and direction indicator lights go on continuously.
Undervoltage
If the battery voltage falls below 8.5 V, an undervoltage occurs. If the battery voltage exceeds 9 V, the undervoltage is no longer present. If an undervoltage occurs, the inputs Door lock barrel open and Door lock barrel closed are evaluated as inactive irrespective of their state. It is not possible to activate the central locking system via the door lock barrel when an undervoltage occurs. The alarm system cannot be activated in the event of an undervoltage.
Load disconnection
If the vehicle is locked up, some loads are disconnected from the supply voltage in order to conserve the battery. Load deactivation is activated if at least one of the following requirements is fulfilled:
- 10 minutes after locking up the vehicle via hand-held transmitter or door lock as well as after re-locking.
- 2 hours after pin 86 S is switched off.
- 2 hours after the central locking system is unlocked via door lock or hand-held transmitter.
- 2 hours after alarm output.
Load disconnection is deactivated if at least one of the following requirements is fulfilled:
- Pin 86 S is switched on.
- Pin 15 is switched on.
- A valid transponder is detected.
- The vehicle is unlocked or locked via hand-held transmitter or door lock.
- A door is opened.
- Alarm output.
Behaviour in the case of servicing
When removing:
- vehicle battery
- alarm siren
- alarm control centre
an activated tilt sensor will trigger an alarm. In order to carry out servicing work, the alarm siren must be switched off before starting the work. To switch it off, insert the vehicle key with valid transponder into the ignition lock and rotate to actuate the buzzer contact. Components can be removed without triggering the alarm as long as the vehicle key remains inserted.
Lid release locking
Electric locking is carried out by the alarm system control module and is valid for the following country codings:
- USA
- England
- Belgium
Functioning can be checked under Tank locking in the Drive links menu item. This locks not only the tank cap but also the front and rear lid release.