Note
When replacing the main body ECU (multiplex network body ECU), make sure to replace it with a new one.
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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Key Reminder Buzzer does not Sound | Combination meter assembly | |
| Main body ECU (multiplex network body ECU) | - | |
| Front door courtesy light switch assembly (for driver door) | - | |
| Unlock warning switch assembly | - | |
| Harness or connector | - |