Diesel Data: Automotive Repair

Check CAN Bus Line

CHECK CAN BUS LINE

CIRCUIT DESCRIPTION
When any DTC for the CAN communication system is output, first measure the resistance between the terminals of DLC3 to specify the trouble area, and check that there is no short in the CAN main bus line, between the CAN bus lines, to +B, or to GND.

Wiring Diagram:






Step 1 - 2:




Step 3:




INSPECTION PROCEDURE