300SE (140.032) L6-3.2L (104.990) (1992)
/l6-3.2l_(104.990)/Page-1226007.png)
The new control unit must be coded again when exchanging a control unit. The control unit can be coded via a menu in the handheld tester (up to 07/99)
or via STAR DIAGNOSIS.
GF54.00-P-0004-03A Data Bus System, Block Diagram
GF54.00-P-0004-03A Data Bus System, Block Diagram
All control units are interlinked through the CAN data bus.
A control unit receives a measured value from a sensor, prepares a data telegram from this and places it on the CAN data bus.
All other control units can then read and process this data packet.
GF54.00-P-0004-04A Data Bus System, Advantages
GF54.00-P-0004-04A Data Bus System, Advantages
With the former wiring of the individual electrical and electronic components (standard wiring) each control unit is directly connected to all sensors and
actuators, from which it obtains measured values or which it actuates.
In some cases, this can result in long or redundant cable runs. The data bus system affords the following advantages relative to conventional wiring:
