New CAN Bus Topology (ME 7.2 & M5.2.1)

ME 7.2 & M5.2.1 CAN BUS TOPOLOGY











The CAN bus consists entirely of a twisted pair wire set. This configuration eliminates the need for a ground shield.

The Engine Control Modules (ME7.2 & M5.2.1) have two CAN bus communication ports, one dedicated to AGS (and DME I of the 75OiL to EML) and the other for the balance of the vehicle's CAN bus control modules.

This configuration improves the reliability of CAN bus signalling. It an open occurs in one area, the other control systems can still communicate on either side of the open.

However, signals not reaching their intended recipients will cause CAN bus faults to be stored in the affected systems.