How To Proceed With Troubleshooting

NOTE:

DTCs for the CAN communication system are as follows: U0073/42, U0100/65
Refer to troubleshooting of each system if DTCs regarding the CAN communication system are not output.

VEHICLE BROUGHT TO WORKSHOP
INSPECT BATTERY VOLTAGE
Standard voltage: 11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding.
CHECK AND CLEAR DTC
CHECK CAN BUS LINE
1. Check CAN BUS LINE .

CHECK INTELLIGENT TESTER VIA CAN VIM

Result

PROBLEM SYMPTOMS CHART

Result	Proceed
All ECUs connected to CAN communication system are displayed.	A
An ECU not connected to CAN communication system is displayed.	B

NOTE: Non-installed ECUs are not displayed. Do not mistaken the ECU to be having a communication stop malfunction.

B: COMMUNICATION STOP MODE TABLE

A: Go To Next Step

DTC COMBINATION TABLE
1. Confirm trouble according to the combination of output DTCs regarding the CAN communication system.
  HINT:
  
  Previous CAN communication system DTCs may be the cause if CAN communication system DTCs are output and all ECUs connected to the CAN communication system are displayed on the intelligent tester's "BUS CHECK" screen via CAN VIM.
CIRCUIT INSPECTION
IDENTIFICATION OF PROBLEM
REPAIR OR REPLACE
CONFIRMATION TEST
NEXT: END