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Home >> Lexus >> 2015 >> RC 350 Base, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Lighting System (Ext) - Diagnostics - Introduction) >> Lighting System >> Diagnostic Trouble Code Chart [10/2018 - ] >> Diagnostic Trouble Code Chart [10/2018 - ]
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Diagnostic Trouble Code Chart [10/2018 - ]

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

DTC No. Detection Item DTC Output from Link
B1244 Light Sensor Circuit Main Body Refer to DTC B1244: Light Sensor Circuit [10/2018 - ]
B2414 Steering Position Sensor HL AutoLeveling Refer to DTC B2414: Steering Position Sensor [10/2018 - ]
B242C Right Headlight ECU Malfunction HL AutoLeveling Refer to DTC B242C: Right Headlight ECU Malfunction; DTC B242D: Left Headlight ECU Malfunction [10/2018 - ]
B242D Left Headlight ECU Malfunction HL AutoLeveling Refer to DTC B242C: Right Headlight ECU Malfunction; DTC B242D: Left Headlight ECU Malfunction [10/2018 - ]
B242E Open in IG Circuit HL AutoLeveling Refer to DTC B242E: Open in IG Circuit [10/2018 - ]
B2439 Headlight LH Circuit HL AutoLeveling Refer to DTC B2439: Headlight LH Circuit; DTC B243A: Headlight RH Circuit [10/2018 - ]
B243A Headlight RH Circuit HL AutoLeveling Refer to DTC B2439: Headlight LH Circuit; DTC B243A: Headlight RH Circuit [10/2018 - ]
B243D Left Low Beam Fan Malfunction HL AutoLeveling Refer to DTC B243D: Left Low Beam Fan Malfunction; DTC B243E: Right Low Beam Fan Malfunction [10/2018 - ]
B243E Right Low Beam Fan Malfunction HL AutoLeveling Refer to DTC B243D: Left Low Beam Fan Malfunction; DTC B243E: Right Low Beam Fan Malfunction [10/2018 - ]
U0073 Control Module Communication Bus Off HL AutoLeveling Refer to 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 - ]
U0100 Lost Communication with ECM / PCM "A" HL AutoLeveling Refer to 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 - ]
U0101 Lost Communication with TCM HL AutoLeveling Refer to 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 - ]
U0126 Lost Communication with Steering Angle Sensor Module HL AutoLeveling Refer to 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 - ]
U0129 Lost Communication with Brake System Control Module HL AutoLeveling Refer to 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 - ]
U0142 Lost Communication with Body Control Module "B" HL AutoLeveling Refer to 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 - ]
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module HL AutoLeveling Refer to 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 - ]
U0242 Lost Communication With Headlamp Control Module "B" HL AutoLeveling Refer to DTC U0242: Lost Communication With Headlamp Control Module "B" [10/2018 - ]
U1000 CAN Communication Failure (Message Registry) HL AutoLeveling Refer to DTC U1000: CAN Communication Failure (Message Registry) [10/2018 - ]
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