How To Proceed With Troubleshooting
- VEHICLE BROUGHT TO WORKSHOP
NEXT
- PROBLEM SYMPTOM CONFIRMATION
NEXT
- CHECK MULTIPLEX COMMUNICATION SYSTEM
Refer to the how to proceed with troubleshooting (See HOW TO PROCEED WITH TROUBLESHOOTING ).
- Check for output DTCs.
Result
RESULT CHARTResult 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
A: Go to Next Step
- CHECK CAN COMMUNICATION SYSTEM
Refer to the precaution (See PRECAUTION ).
- Check for output DTCs.
Result
RESULT CHARTResult 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
A: Go to Next Step
- DTC CHECK AND CLEAR
Refer to the DTC CHECK / CLEAR .
NEXT
- DTC CHECK (OTHER THAN MPX AND CAN SYSTEM DTC)
Refer to the DTC CHECK / CLEAR .
Result
RESULT CHARTResult 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 the DIAGNOSTIC TROUBLE CODE CHART .
NEXT
GO TO STEP 11
- PROBLEM SYMPTOM SIMULATION
Result
RESULT CHARTResult 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 the electronic circuit inspection procedure (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
NEXT
- PROBLEM SYMPTOMS TABLE
Refer to the PROBLEM SYMPTOMS TABLE .
NEXT
- CIRCUIT INSPECTION
NEXT
- TERMINALS OF ECU
Refer to the TERMINALS OF ECU .
NEXT
- IDENTIFICATION OF PROBLEM
NEXT
- REPAIR OR REPLACE
NEXT
- CONFIRMATION TEST
NEXT: END