Problem Symptoms Table [11/2017 - 10/2018]
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Lexus RC 350, 2018 Lexus RC 300, 2017 Lexus RC 350, 2017 Lexus RC 300, and 2017 Lexus RC 200t. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
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.
AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| Automatic headlight beam level control system does not operate | Check DTCs | Refer to DTC CHECK / CLEAR [09/2014 - 10/2018] |
| Check fail-safe function | Refer to FAIL-SAFE CHART [11/2017 - 10/2018] | |
| Headlight leveling ECU power source circuit | Refer to Headlight Leveling ECU Power Source Circuit [09/2014 - 10/2018] | |
| Headlight beam level control actuator circuit | Refer to Headlight Beam Level Control Actuator Circuit [09/2014 - 10/2018] | |
| Headlight leveling ECU assembly | Refer to REMOVAL [09/2014 - 10/2018] | |
| Initialization cannot be performed | Check DTCs | Refer to DTC CHECK / CLEAR [09/2014 - 10/2018] |
| CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 10/2018] | |
| Headlight leveling ECU assembly | Refer to REMOVAL [09/2014 - 10/2018] |