How To Proceed With Troubleshooting
- VEHICLE BROUGHT TO WORKSHOP
NEXT: Go to next step
- PROBLEM SYMPTOM CONFIRMATION
NEXT: Go to next step
- CHECK MULTIPLEX COMMUNICATION SYSTEM
Refer to HOW TO PROCEED WITH TROUBLESHOOTING .
- Check for output DTCs.
Result
Result Proceed to MPX DTC is not output A MPX DTC is output B HINT:
The ECM of this system is connected to the multiplex communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the multiplex communication system.
B → PROCEED TO "MULTIPLEX COMMUNICATION SYSTEM"
A: Go to next step
- Check for output DTCs.
- CHECK CAN COMMUNICATION SYSTEM
Refer to PRECAUTION .
- Check for output DTCs.
Result
Result Proceed to CAN DTC is not output A CAN DTC is output B HINT:
The ECM of this system is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.
B → PROCEED TO " CAN COMMUNICATION SYSTEM "
A: Go to next step
- Check for output DTCs.
- DTC CHECK AND CLEAR
Refer to DTC CHECK / CLEAR .
NEXT: Go to next step
- DTC CHECK (OTHER THAN MPX AND CAN SYSTEM DTC)
Refer to DTC CHECK / CLEAR .
Result
Result Proceed to DTC is not output A DTC is output B A → GO TO STEP 8
B: Go to next step
- DTC CHART
Refer to DIAGNOSTIC TROUBLE CODE CHART .
NEXT → GO TO STEP 11
- PROBLEM SYMPTOM SIMULATION
Result
Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B → GO TO STEP 10
A: Go to next step
- SYMPTOM SIMULATION
Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE .
NEXT: Go to next step
- PROBLEM SYMPTOMS TABLE
Refer to PROBLEM SYMPTOMS TABLE .
NEXT: Go to next step
- CIRCUIT INSPECTION
NEXT: Go to next step
- TERMINALS OF ECU
Refer to TERMINALS OF ECU .
NEXT: Go to next step
- IDENTIFICATION OF PROBLEM
NEXT: Go to next step
- REPAIR OR REPLACE
NEXT: Go to next step
- CONFIRMATION TEST
NEXT → END