Symptom Related Diagnostic Procedures

NETWORKING: CAN COMMUNICATION SYSTEM: PROBLEM SYMPTOMS TABLE; 2013 MY FR-S [03/2012 -]

HINT
* Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
* Inspect the fuses and relays related to this system before inspecting the suspected areas below.
* Because the order of diagnosis is important to allow a correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output How to Proceed With Troubleshooting.

Result List of How to Proceed with Troubleshooting





HINT
Refer to How to Proceed with Troubleshooting for the V Bus Check procedure.

Communication Stop Mode Table

The suspected communication stop area can be determined based on the ECU or sensor that was not displayed in CAN Bus Check and by referring to the table below.





DTC Combination Table