Note
When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
Tech Tips
If any of the following symptoms exist despite the normal system code being output when checking for CAN communication and lane control system DTCs, check the suspected areas in the order they are listed.
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.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Lane control system does not operate | Steering pad switch circuit | |
| The LTA indicator does not illuminate even when the LTA main switch (steering pad switch assembly) is operated. | Indicator circuit | |
| Steering pad switch circuit | ||
| CAN communication system | ||
| Combination meter assembly | ||
| Driving support ECU assembly | Click here | |
| The LTA indicator does not turn off even when the LTA main switch (steering pad switch assembly) is operated. | Indicator circuit | |
| Steering pad switch circuit | ||
| CAN communication system | ||
| Combination meter assembly | ||
| Driving support ECU assembly | ||
| Increase in cases that driver can see line markers but system cannot detect lane markers | Active/non-active conditions | |
| Vehicle control history | ||
| Adjust object recognition camera | ||
| Driving support ECU assembly |