Explanation About The Scan Tool (M.U.T.-IIISE) Can Bus Diagnostics: Notes

The CAN bus is diagnosed by using "Read all DTCs" function on the scan tool (M.U.T.-IIISE). "Read all DTCs" automatically reads the diagnostic trouble code from all the ECUs selected in the system list, and displays the diagnostic results in the result field on the left side of the screen and the status of the diagnostic trouble code on the right side of the screen as the respective results. In the CAN bus diagnostics using "Read all DTCs" of the scan tool (M.U.T.-IIISE), it is judged whether there is an abnormality in the CAN bus line based on the diagnostic results displayed in the result field on the left side of the screen.

Screen image of the scan tool (M.U.T.-IIISE) (Read all DTCs)	Result field (Left side of the screen)	Action
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.	"OK" or "-" is displayed for all the systems.	Perform normal failure phenomenon diagnosis.
	"TC" is displayed for one or more systems and "NC" is not displayed at all.	After reading the diagnostic trouble code, pinpoint the trouble spot according to the diagnostic trouble code or perform normal failure phenomenon diagnosis.
	"NC" is displayed for one or more systems.	Write down all the systems for which "NC" is displayed, and proceed to CAN Bus Diagnostics Table.