Trip computer (TRIP), networking of components - GF54.50-P-0001-02P

Function overview 

The trip computer (TRIP) is integrated in the instrument cluster (A1).

The instrument cluster (A1) is connected to the following data bus systems:

• Controller Area Network bus class B (interior) (CAN-B)
• Controller Area Network bus class C (engine compartment) (CAN-C)

Data is exchanged with almost all control units over the two data bus systems.

The instrument cluster (A1) does not serve as an interface between CAN-B and CAN-C. This is the function of the EIS [EZS] control unit (N73).

Basically it concerns the following information:

• The kilometers driven
• The fuel consumption signal
• The time information
• The current quantity of fuel available

Received messages for the multifunction display (A1p13) 

All signals for the messages on the multifunction display (A1p13) are received via CAN-B or CAN-C.

Information about the signal paths and other details about the different messages can be found in the function descriptions for the relevant systems.