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Can-Bus Terminal Resistance, Checking: General Description

The Engine/Motor Control Module -J623- communicates with all databus capable control modules via a CAN databus.

These databus capable control modules are connected via two data bus wires which are twisted together (CAN_High and CAN_Low), and exchange information (messages). Missing information on the databus (CAN-bus) is recognized as a malfunction and may be stored by the Engine/Motor Control Module -J623- and the other control modules connected to the CAN-bus.

Trouble-free operation of the CAN-bus requires that it have a terminal resistance. This central terminal resistor is located in the Engine/Motor Control Module -J623-.

Special tools and workshop equipment required 

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