Note
If the headlight control computer assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight control computer 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 |
|---|---|---|
| Automatic headlight beam level control system does not operate (Left Headlight) | Power source circuit | |
| Headlight beam level control actuator circuit | ||
| Headlight control computer assembly LH | ||
| Automatic headlight beam level control system does not operate (Right Headlight) | Power source circuit | |
| Headlight beam level control actuator circuit | ||
| Headlight control computer assembly RH | ||
| Initialization cannot be performed | Check DTCs | |
| CAN communication system (for LHD) | ||
| CAN communication system (for RHD) | ||
| Headlight control computer assembly LH | ||
| Headlight leveling warning light does not come on when turning the engine switch on (IG) | Headlight control computer assembly LH | |
| Combination meter assembly |