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Home >> Lexus >> 2017 >> RX 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Exterior Lights >> Lighting System (W/ Automatic Headlight Beam Level Control System) - Diagnostics - Introduction (2 Of 2) >> LIGHTING SYSTEM (w/ Automatic Headlight Beam Level Control System) >> Diagnostic Trouble Code Chart [09/2015 - 08/2019] >> Diagnostic Trouble Code Chart [09/2015 - 08/2019]
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Diagnostic Trouble Code Chart [09/2015 - 08/2019]

LIGHTING SYSTEM

DTC No. Detection Item Note Link
B1244 Light Sensor Circuit Malfunction - Refer to DTC B1244: Light Sensor Circuit Malfunction [09/2015 - 08/2019]
B2414 Steering Position Sensor Malfunction - Refer to DTC B2414: Steering Position Sensor Malfunction [09/2015 - 08/2019]
B242C Right Headlight ECU Malfunction - Refer to DTC B242C: Right Headlight ECU Malfunction; DTC B242D: Left Headlight ECU Malfunction [09/2015 - 08/2019]
B242D Left Headlight ECU Malfunction - Refer to DTC B242C: Right Headlight ECU Malfunction; DTC B242D: Left Headlight ECU Malfunction [09/2015 - 08/2019]
B242E Open in IG Circuit - Refer to DTC B242E: Open in IG Circuit [09/2015 - 08/2019]
B2439 Headlamp LH Circuit - Refer to DTC B2439: Headlamp LH Circuit; DTC B243A: Headlamp RH Circuit [09/2015 - 08/2019]
B243A Headlamp RH Circuit - Refer to DTC B2439: Headlamp LH Circuit; DTC B243A: Headlamp RH Circuit [09/2015 - 08/2019]
B243B LED Wiring for High Beam LH Circuit for Triple Beam Headlight Refer to DTC B243B: LED Wiring for High Beam LH Circuit; DTC B243C: LED Wiring for High Beam RH Circuit [09/2015 - 08/2019]
B243C LED Wiring for High Beam RH Circuit for Triple Beam Headlight Refer to DTC B243B: LED Wiring for High Beam LH Circuit; DTC B243C: LED Wiring for High Beam RH Circuit [09/2015 - 08/2019]
B243D Left Low Beam Fan Malfunction - Refer to DTC B243D: Left Low Beam Fan Malfunction; DTC B243E: Right Low Beam Fan Malfunction [09/2015 - 08/2019]
B243E Right Low Beam Fan Malfunction - Refer to DTC B243D: Left Low Beam Fan Malfunction; DTC B243E: Right Low Beam Fan Malfunction [09/2015 - 08/2019]
U0073 Control Module Communication Bus OFF - 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 [09/2015 - 08/2019]
U0100 Lost Communication with ECM / PCM "A" - 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 [09/2015 - 08/2019]
U0101 Lost Communication with TCM - 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 [09/2015 - 08/2019]
U0126 Lost Communication with Steering Angle Sensor Module - 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 [09/2015 - 08/2019]
U0129 Lost Communication with Brake System Control Module - 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 [09/2015 - 08/2019]
U0142 Lost Communication with Body Control Module "B" - 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 [09/2015 - 08/2019]
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module - 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 [09/2015 - 08/2019]
U0242 Lost Communication With Headlamp Control Module "B" - Refer to DTC U0242: Lost Communication With Headlamp Control Module "B" [09/2015 - 08/2019]
U1000 CAN Communication Failure (Message Registry) - Refer to DTC U1000: CAN Communication Failure (Message Registry) [09/2015 - 08/2019]
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