60
Additional signals/interface
The engine speed signal...
... is a square-wave signal which is conditioned
by the engine control unit and whose
frequency is synchronous with engine speed.
The duty factor is approx. 50%.
Three signals are transferred per revolution of
the engine.
... is required by the following system
components:
- Dash panel insert
- Automatic gearbox
- Air conditioner
The CAN-high/CAN-low interfaces ...
... serve to transfer data between the control
units.
The CAN data bus (Controller Area Network) is
a serial data transfer system.
You can find detailed information
regarding the CAN databus in SSP
186.
12
20 40 60
3
SSP 198/61
1 revolution of engine
Segments of the sender wheel
3 signals
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