Section 11 (Lighting System (Ext) - Diagnostic Codes & Circuit Tests)
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2024 Lexus RC 350, 2024 Lexus RC 300, 2023 Lexus RC 350, 2023 Lexus RC 300, and 2022 Lexus RC 350. However, it is still accessible from the selected car via links, so may be relevant.
- Lighting System
- VEHICLE CONTROL HISTORY (RoB) [10/2022 - ]
- DTC B1244: Light Sensor Circuit [10/2018 - ]
- DTC B2414: Steering Position Sensor [10/2018 - ]
- DTC B242C: Right Headlight ECU Malfunction; DTC B242D: Left Headlight ECU Malfunction [10/2018 - ]
- DTC B242E: Open in IG Circuit [10/2018 - ]
- DTC B2439: Headlight LH Circuit; DTC B243A: Headlight RH Circuit [10/2018 - ]
- DTC B243D: Left Low Beam Fan Malfunction; DTC B243E: Right Low Beam Fan Malfunction [10/2018 - ]
- DTC U0073: Control Module Communication Bus Off; DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0101: Lost Communication with TCM; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B"; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module [10/2018 - ]
- DTC U0242: Lost Communication With Headlamp Control Module "B" [10/2018 - ]
- DTC U1000: CAN Communication Failure (Message Registry) [10/2018 - ]
- Turn Signal Switch Circuit [10/2018 - ]
- Headlight Dimmer Switch Circuit [10/2018 - 11/2021]
- Headlight Dimmer Switch Circuit [11/2021 - ]
- Parking Light/Daytime Running Light Circuit [10/2018 - ]
- Hazard Warning Switch Circuit [10/2018 - ]
- Outside Handle Foot Light Circuit [10/2018 - ]
- Parking Brake Switch Circuit [10/2018 - 09/2020]
- Taillight Relay Circuit [10/2018 - ]
- Power Source Circuit [10/2018 - ]
- Cornering Light Circuit [10/2018 - ]
- High Beam Headlight Circuit [10/2018 - ]