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Automatically controlled
starting
The automatic start control is integrated into
the engine control unit.
A new feature is that starter control is no
longer implemented by way of the ignition/
starter switch D (switching of terminal 50),
but rather it is performed automatically by
the engine control unit.
Release for starter actuation is always
transmitted by the entry and start
authorisation control unit J518 to the engine
control unit J623.
In addition to general release by the
immobilizer, the following start release
conditions also have to be satisfied:
– Start signal from entry and start
authorisation switch E415 or entry and
start authorisation button E408
– Clutch pedal pressed, signal from clutch
pedal switch F194 (manual gearbox only)
– Selector lever position P or N (automatic
gearbox control unit J217)
– In the event of start signal via entry and
start authorisation button E408, brake
must be pressed (signal from brake light
switch F via separate interface)
As a safeguard, P/N signal or signal from
clutch pedal switch F194 must be applied
to the separate interfaces of the two
control units (J623 and J518).
Additional safeguard, as entry and start
authorisation button E408 can be
actuated by front passenger.
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