Tech Tips
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.
| Symptom | Suspected Area | Link |
|---|---|---|
| Sound is not produced. | ECU-IG NO.3 fuse | |
| Power source circuit | ||
| Permission signal circuit | ||
| Stop light switch circuit | ||
| Speaker circuit | ||
| Speed signal circuit | ||
| Vehicle approaching speaker controller | ||
| Harness or connector | ||
| Even when the engine is started or the shift lever is in P, sound does not stop. | Permission signal circuit | |
| Vehicle approaching speaker controller | ||
| Harness or connector | ||
| Even when the No. 2 combination switch assembly (vehicle approaching speaker switch) is pressed, sound is not produced or stopped. | Vehicle approaching speaker switch circuit | |
| Vehicle approaching speaker controller | ||
| No. 2 combination switch assembly (vehicle approaching speaker switch) | ||
| Harness or connector | ||
| The No. 2 combination switch assembly (vehicle approaching speaker switch) indicator does not illuminate or turn off. | Vehicle approaching speaker switch indicator circuit | |
| Vehicle approaching speaker controller | ||
| No. 2 combination switch assembly (vehicle approaching speaker switch) | ||
| Harness or connector | ||
| Communication between the vehicle proximity notification system (vehicle approaching speaker controller) and the GTS is not possible. | ECU-IG NO.3 fuse | |
| Power source circuit | ||
| DLC3 circuit | ||
| Vehicle approaching speaker controller | ||
| Harness or connector | ||
| The No. 2 combination switch assembly (vehicle approaching speaker switch) does not dim. | Main body ECU (multiplex network body ECU) | |
| Vehicle approaching speaker controller | ||
| Harness or connector | - |