Note
When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Learning.
If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.
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 |
|---|---|---|
| Adaptive high beam indicator on the combination meter assembly does not illuminate | Check operating conditions | |
| Meter / gauge system | ||
| Adaptive high beam switch circuit | ||
| Headlight dimmer switch circuit | ||
| Combination meter assembly (Meter circuit plate) | ||
| Forward recognition camera | ||
| No. 1 headlight ECU sub-assembly LH | ||
| Adaptive high beam system does not operate | Customize settings | |
| Check operating conditions | ||
| Check that the low beams and high beams operate manually | - | |
| Check automatic light control system operation | ||
| Adaptive high beam switch circuit | ||
| Headlight dimmer switch circuit | ||
| Headlight unit | ||
| Headlight unit assembly | ||
| Forward recognition camera | ||
| Headlight light control ECU sub-assembly | ||
| No. 1 headlight ECU sub-assembly LH |