SMART Series 451 Service Manual page 98

SN_Typ 451_us.book Seite 97 Freitag, 30. November 2007 1:56 13
PANIC alarm
Pressing the PANIC button for at least 1 s triggers an
acoustic alarm. The turn signal indicators also flash.
The alarm is deactivated when
• Circuit 15 is switched ON or
• The PANIC button is pressed
Unlocking and locking from the inside via the
switches in the cockpit switch group
When the side doors and the rear-end door are
closed, pressing the "Lock or unlock" switch in the
cockpit switch group causes a signal to be sent
straight to the SAM control unit. This actuates the
central locking motors. The vehicle doors and the fuel
filler flap are either locked or unlocked accordingly
and the rear-end door handle switch is either enabled
or disabled.
Special function:
If the vehicle cannot be locked using the transmitter
key due to a flat battery in the key, proceed as follows:
• Open driver door
• Switch circuit 15 ON
• Actuate inside CL [ZV] switch
• Within 5 s, switch circuit 15 OFF and remove
transmitter key
• Close driver door, vehicle is locked.
Manual unlocking of the driver door with the trans-
mitter key at the door lock
When the door lock on the driver door is operated with
the transmitter key, the driver door and (if the on-
board power supply voltage is sufficient) the fuel
filler flap are unlocked.
If the antitheft alarm system on the vehicle is armed,
an alarm is triggered.
Speed-dependent locking
The vehicle is automatically locked if circuit 15 is ON
and the vehicle speed exceeds 8 mph (14 km/h).
Speed-dependent locking can be activated or deacti-
vated as required.
Relocking
This function relocks the vehicle automatically if none
of the doors is opened 60 s after unlocking.
Emergency opening after crash recognition
This functions unlocks the doors after an accident
that triggers a crash signal.
Remote rear-end door opening (smart fortwo coupé
only)
When the "Open rear-end door" button on the trans-
mitter key is pressed, it sends a radio signal to the
SAM control unit. This checks the access authorization
of the transmitter key. If the access authorization is
valid, the SAM control unit actuates the trunk lid CL
[ZV] motor directly.
Remote folding top opening (smart fortwo cabrio
only)
When the "Open folding top" button on the transmitter
key is pressed, it sends a radio signal to the SAM
control unit. This checks the access authorization of
the transmitter key. If the access authorization is
valid, the SAM control unit actuates the electric soft
top motor directly.
i Note
The radio signal for unlocking the door is picked
up by an antenna integrated in the SAM control
unit. There is no external antenna for the central
locking.
Introduction of the smart fortwo, Model Series 451
Central locking
97