Central locking system
| Central locking system |
Locking/unlocking
Saab 9-3 is standard equipped with central locking system for all markets.In each door there is a lock unit, which in the driver's door comprises a lock cylinder, microswitch, electric motor and lock. In the other doors, there is only the electric motor and lock. The central locking function is controlled by the TWICE control module. The central locking system can be locked/unlocked using the key, remote control or the button on the centre console. Convertibles do not have the button on the centre console and the central locking system is instead operated from the lock buttons in the doors. The central locking system cannot be operated with the remote control when the key is sitting in the ignition.
The central locking system can be operated with the key in the driver's door.
The lock has a rotating lock cylinder, which means that it will rotate freely if the wrong key is used or if a forced entry is attempted.
The central locking system cannot be unlocked from the inside with the lock button in the driver's door, but only with the button on the centre console. The lock buttons in the doors only lock or unlock each respective door.
The rear doors are provided with child safety catches that are activated with a small handle by the door lock. When the child safety catch is activated, the door can only be opened from the outside, provided the lock button is not pushed down.
The central locking system motors are supplied with power via fuse 25 to pin 47 on the TWICE control module, and when activated, TWICE will check the power flowing through the motors.
Mechanical opening of the central locking system
In cases when the lock motor is de-energized, the lock must be “emergency opened“ mechanically. Turn the key past the normal unlocking angle and the lock motor will unlock at the same time as the door. In cases when the power supply has been cut abruptly, the alarm will be activated (if the car is fitted with alarm).Emergency opening from central locking mode can be done from the driver's door.
Separate unlocking
For the US and CA markets, the cars are standard equipped with separate unlocking of the driver's door. Separate unlocking means that the door is first unlocked separately. The remaining doors are unlocked when the key is turned a second time, when the button on the remote control is activated a second time as well as when the button on the centre console is pushed a second time. In case of key opening from the passenger door, the passenger door is separately unlocked first.The cars for these markets are equipped with a lock motor that cannot be provided with TSL (Theft Security Lock), that is, the end position of the motor cannot be blocked.
TSL-locking
All markets except US/CA is equipped with TSL-locking (Theft Security Lock). When the theft prevention lock (TSL) is activated, all locks are blocked and the doors cannot be unlocked by the lock button in the door or on the centre console. TSL cannot be activated when a door is ajar.If the car is locked TSL-locked using remote control or key, “locked from the outside“, the central locking system will unlock the car when the key is turned ignition position ON. This is a safety feature to prevent someone from driving off in a TSL-locked car.
The cars on the US and CA markets are equipped with a lock motor that cannot be locked with TSL, that is, the end position of the motor cannot be blocked.
If the power supply to the lock motors should be interrupted, the door can be opened in a secondary way. By turning the key past the normal unlocking angle, the powerless motor can be bypassed. The motor remains locked and in cases where the power has been suddenly interrupted, the alarm will be activated (if the car is equipped with an alarm).
Emergency opening from the TSL-locked position is only possible from the driver's door.
Overheating protection
In case of repeated locking and unlocking, an overheating protection is activated and prevents locking, however, the car can be unlocked. The overheating protection is activated after approximately 5 new lock/unlocking actions. After that, 30 seconds must elapse before 2-3 lock/unlocking actions are allowed. After approximately 2 minutes, the overheating protection is reset and 5 new lock/unlocking actions are possible. The limits of the overheating protection vary somewhat, depending on the body type (3/5D and convertible).Keys and remote controls
The car is delivered with two keys/remote controls but another two can be programmed. This means that the maximum number of keys/remote controls for each car is four. In addition to these keys, the car is also delivered with a key blank for emergency opening of the central locking system. This key does not have a transponder and cannot be used to start the car.In order to check the number of remote controls/transponders that are programmed, press the boot lid opening button on the remote control with the ignition ON. The number of programmed remote controls/transponders will then be displayed on SID.
| Programming |
Certain central locking functions are programmed according to market specifications. For others, there can be legal stipulations governing them and they must not be re-programmed. Functions can also be programmed to customer requirements. See the following table.
Market programmed central locking system functions
| Function/Market | EU | GB | LA | ME | AU | US | CA | PA (LHD) | PA (RHD) | Re-programming permitted |
|
RHD
|
No
|
Yes
|
No
|
No
|
Yes
|
No
|
No
|
No
|
Yes
|
No
|
|
Separate unlocking, key, driver's door
|
No
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
No
|
No
|
Yes
|
|
Separate unlocking, remote control
|
No
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
No
|
No
|
Yes
|
|
Separate unlocking, lock button, centre console
|
No
|
No
|
No
|
No
|
No
|
Yes
|
Yes
|
No
|
No
|
Yes
|
|
TSL, key, driver's door
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
No
|
No
|
Yes
|
Yes
|
Yes/ not US/CA
|
|
TSL, remote control
|
Yes
|
Yes
|
No
|
No
|
No
|
No
|
No
|
No
|
No
|
Yes/ not US/CA
|
|
Acoustic confirmation of TSL
|
0 ms
|
0 ms
|
0 ms
|
0 ms
|
0 ms
|
-
|
-
|
0 ms
|
0 ms
|
Yes
|
|
Direction indicator flashes when tailgate is opened with remote control, 3 light flashes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
| The central locking system uses the following information: |
| Information | Sensor system | |
|
+50 voltage
|
DICE
|
Receives information that the starter motor is cranking. The central locking system uses the information to prevent locking while the starter motor is cranking.
|
| The central locking system outputs the following information: |
| Information | Used by | |
|
Horn
|
SID
|
SID receives information to activate the horn when TSL lock is engaged.
|
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