LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2017 >> GS 350 Base, AWD >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Lighting (Exterior) DTCS >> Lighting System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Lighting System

LIGHTING SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [09/2014 - 10/2015]

DTC Code Description
B1244 Light Sensor Circuit Malfunction
B2410*1 Headlight Swivel Motor LH Communication Malfunction
B2411*1 Headlight Swivel Motor RH Communication Malfunction
B2412*1 Headlight Swivel Motor LH Malfunction
B2413*1 Headlight Swivel Motor RH Malfunction
B2414*1 Steering Position Sensor Malfunction
B2415 Vehicle Speed Sensor Malfunction
B2416 Height Control Sensor Malfunction
B2417 Headlight Beam Level Control Motor LH Malfunction
B2418 Headlight Beam Level Control Motor RH Malfunction
B241A Rear Height Control Sensor
B241C*1, *2 VGRS ECU
B241D*1, *2 DRS System
B2420 AFS ECU Malfunction
B2424 Headlight Leveling Motor LH Communication Malfunction
B2425 Headlight Leveling Motor RH Communication Malfunction
B2430*3 LED Headlight LH Circuit Malfunction
B2431*3 LED Headlight RH Circuit Malfunction
B2450 Initialization has not been Performed
B2451 Vehicle Specifications have not been Stored
B2452 Height Control Sensor Data Out of Range When Initializing
B2453 Variation Error
U0073 Control Module Communication Bus Off
U0100 Lost Communication with ECM / PCM "A"
U0101 Lost Communication with TCM
U0126 Lost Communication with Steering Angle Sensor Module
U0129 Lost Communication with Skid Control ECU
U0130 Lost Communication with VGRS
U0134 Lost Communication with DRS Module
U0142 Lost Communication with Main Body ECU
U1000 CAN Communication Failure (No CAN Message)
LIGHTING SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION [10/2015 - ]

DTC Code Description
B1244 Light Sensor Circuit Malfunction
B2414 Steering Position Sensor Malfunction
B2415 Vehicle Speed Sensor Malfunction
B241A Rear Height Control Sensor
B241C VGRS ECU
B242C Right Headlight ECU Malfunction
B242D Left Headlight ECU Malfunction
B242E Open in IG Circuit
B2439 Headlamp LH Circuit
B243A Headlamp RH Circuit
B243B LED Wiring for High Beam LH Circuit
B243C LED Wiring for High Beam RH Circuit
B243D Left Low Beam Fan Malfunction
B243E Right Low Beam Fan Malfunction
B2450 Initialization has not been Performed
B2451 Vehicle Specifications have not been Stored
B2452 Height Control Sensor Data Out of Range When Initializing
B2456 Left Headlight ECU Variation Error
U0073 Control Module Communication Bus OFF
U0100 Lost Communication with ECM / PCM "A"
U0101 Lost Communication with TCM
U0126 Lost Communication with Steering Angle Sensor Module
U0129 Lost Communication with Brake System Control Module
U0130 Lost Communication with Steering Effort Control Module
U0134 Lost Communication with DRS Module
U0142 Lost Communication with Body Control Module "B"
U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module
U0242 Lost Communication With Headlamp Control Module "B"
U1000 CAN Communication Failure (Message Registry)