CAN-BUS TERMINAL RESISTANCE, Transmission Control Module - J217 - TO Engine Control Module - J623-, CHECKING: Function
The Engine Control Module -J623- communicates with the Transmission Control Module -J217-.
The control modules are connected by two Data Bus wires which are twisted together (CAN High and CAN Low), and exchange information (messages). Missing information on the CAN-Bus is recognized as a malfunction by the Engine 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 resistance is located in the Engine Control Module -J623-.