Symptom Table
WARNING: This page is about a different car, the 2014 Subaru BRZ. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Use the following table to identify the cause of the symptom. If multiple items are listed as causes, they are listed in the [Possible causes] column in descending order of probability. Check each symptom by inspecting the possible causes in the order listed in the table. Replace the parts as required.
- Check fuse and relay before inspecting the possible causes listed in the following table.
ANTI-THEFT SYSTEM
| Symptoms | Possible cause | Reference |
|---|---|---|
| The anti-theft system cannot be set. | Refer to "Security indicator light does not flash" | INSPECTION STEPS |
| Refer to "ECM POWER SUPPLY CIRCUIT " | ||
| Door courtesy switch circuit | ||
| Refer to "Trunk courtesy switch circuit" | ||
| Front door lock assembly LH/RH | ||
| Trunk lock assembly | ||
| Collation ECM (smart key ECM assembly) | - | |
| If the trouble is not solved even after checking the above items and confirming all parts are operating normally, replace the main body ECM (multiplex network body ECM). | - | |
| Security indicator light does not flash while the anti-theft system is set. | Refer to "Security indicator light does not flash" | INSPECTION STEPS |
| Alarm sounding state cannot be cancelled even after starting the engine. | Entry & start system (start function) | HOW TO PROCEED WITH TROUBLESHOOTING |
| Collation ECM (smart key ECM assembly) | - | |
| If the trouble is not solved even after checking the above items and confirming all parts are operating normally, replace the main body ECM (multiplex network body ECM). | - | |
| The anti-theft system can be set even though the door is open. | Door courtesy switch circuit | |
| Trunk courtesy switch circuit | ||
| If the trouble is not solved even after checking the above items and confirming all parts are operating normally, replace the main body ECM (multiplex network body ECM). | - | |
| Vehicle horn does not operate while the anti-theft system is activated. | Refer to "HORN CIRCUIT " | HORN CIRCUIT |
| Hazard warning light does not flash while the anti-theft system is activated. | Wiring harness or connector | - |
| Combination meter assembly | - | |
| If the trouble is not solved even after checking the above items and confirming all parts are operating normally, replace the main body ECM (multiplex network body ECM). | - | |
| Hazard warning light flashes while the anti-theft system is not activated. | Wiring harness or connector | - |
| Combination meter assembly | - | |
| If the trouble is not solved even after checking the above items and confirming all parts are operating normally, replace the main body ECM (multiplex network body ECM). | - | |
| Vehicle interior light does not illuminate while the anti-theft system is activated. | Vehicle interior light circuit | |
| If the trouble is not solved even after checking the above items and confirming all parts are operating normally, replace the main body ECM (multiplex network body ECM). | - | |
| Vehicle interior light illuminates while the anti-theft system is not activated. | Vehicle interior light circuit | |
| If the trouble is not solved even after checking the above items and confirming all parts are operating normally, replace the main body ECM (multiplex network body ECM). | - |