How To Proceed With Troubleshooting
- VEHICLE BROUGHT TO WORKSHOP
- PROBLEM SYMPTOM CONFIRMATION
- CHECK MULTIPLEX COMMUNICATION SYSTEM
Refer to the how to proceed with troubleshooting (See HOW TO PROCEED WITH TROUBLESHOOTING ).
- Check for output DTCs.
Result
DTC OUTPUT RESULT TABLEResult 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 the precaution (See PRECAUTION ).
- Check for output DTCs.
Result
DTC OUTPUT RESULT TABLEResult 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
- Check for output DTCs.
- DTC CHECK AND CLEAR
Refer to the DTC CHECK/CLEAR (See ).
- DTC CHECK (OTHER THAN MPX AND CAN SYSTEM DTC)
Refer to the DTC CHECK/CLEAR (See ).
Result
DTC OUTPUT RESULT TABLEResult 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 (See ).
GO TO STEP 11
- PROBLEM SYMPTOM SIMULATION
Result
RESULT TABLEResult 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 HOW TO PROCEED WITH TROUBLESHOOTING ).
- Refer to the PROBLEM SYMPTOMS TABLE ).
- CIRCUIT INSPECTION
- TERMINALS OF ECU
Refer to TERMINALS OF ECU .
- IDENTIFICATION OF PROBLEM
- REPAIR OR REPLACE
- CONFIRMATION TEST
END