Note
If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.
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 | See page |
|---|---|---|
| Automatic high beam indicator on the combination meter assembly does not illuminate | Check operating conditions | |
| Check meter / gauge system | ||
| Forward recognition camera | ||
| Main body ECU (multiplex network body ECU) | ||
| Automatic high beam system does not operate | Check Data List (Auto H Beam STS) | |
| Automatic high beam switch circuit | ||
| Low beam headlight circuit | ||
| High beam headlight circuit | ||
| Headlight dimmer switch circuit | ||
| Check automatic light control system operation | ||
| Forward recognition camera power source circuit | ||
| Forward recognition camera | ||
| Main body ECU (multiplex network body ECU) |