1 Series E81 118i (N46T) 3-door
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Waking of the MOST via the K CAN for a telematics service
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Centralised data source for the vehicle order and redundant data storage for vehicle data
Terminal control
The CAS controls the following terminals via the ignition lock or START/STOP button and slot as follows:
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Terminal R
To maintain the starting capability of the vehicle, the CAS shuts down terminal R automatically. if the
driver's door is opened and closed and no seat occupancy is detected, terminal R will be switched off after
16 minutes.
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Terminal 15
The CAS controls terminal 15 (= active positive) for all electrical systems.
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Terminal 15 wake-up wire
When terminal 15 is switched on, the control unit on the PT-CAN are activated by the wake-up wire.
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Terminal 50L and 50L_RS
During the starting operation, terminal 50L is connected to the starter. Terminal 50R_LS is connected to
the SMG control unit for clutch control.
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Switched terminal 30g
Some consumers (e.g. SZM, CVM) are now on terminal 30g rather than directly on terminal 30.
Terminal 30g is switched by the CAS. Shutting down the consumers on terminal 30g reduces the off-load
current.
Convenient-start system
> E60, E61, E63, E64 up to 09/2005
The starter is only activated until the engine is running.
If the engine does not start, the starting procedure is aborted after approximately 30 seconds. When the engine
is already running, the starter motor is prevented from starting up again (if the ignition key is turned again).
The CAS holds the rolling code for the electronic immobiliser (EWS). This rolling code is transferred between the
CAS and the DME control unit or DDE control unit. The DME control unit or DDE control unit does not enable the
ignition or fuel injection until a valid rolling code (authorised ignition key) is detected.
> E70, E81, E87, E90, E91, E92, E93 and E60, E61, E63, E64 from 09/2005
The starting procedure begins when the START/STOP button is pressed. The starter is only activated until the
engine is running. If the engine does not start, the starting procedure is aborted after approximately
60 seconds.
Only the driver's commands are picked up by the START/STOP button. The starting procedure is controlled by
the CAS control unit.
The CAS will only carry out an engine start if all start conditions have been met. If a condition ceases to be met
during the starting procedure, the starting procedure will be aborted.
Control of the electronic steering lock
> E81, E87, E90, E91, E92, E93 and E60, E61, E63, E64 from 09/2005
After authentication by the CAS, current is applied to the electronic steering lock. Only at this point can the lock
be unlocked or locked.
The engine may only be started if the electronic steering lock has been unlocked and secured.
The electronic steering lock can only be locked when the vehicle is stationary and the engine has been stopped.
If no unlocking procedure or locking procedure is carried out, the electronic steering lock is rendered free of
SBT Car Access System E60, E61, E63, E64, E70, E81, E87, E90, E91, E92, E93
BMW AG - TIS
19.01.2013 06:28
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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