LIGHTING SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC Code	Description
B1244	Light Sensor Circuit Malfunction
B2410	Headlight Swivel Motor LH Communication Malfunction
B2411	Headlight Swivel Motor RH Communication Malfunction
B2412	Headlight Swivel Motor LH Malfunction
B2413	Headlight Swivel Motor RH Malfunction
B2414	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	VGRS ECU
B241D	DRS System
B2420	AFS ECU Malfunction
B2424	Headlight Leveling Motor LH Communication Malfunction
B2425	Headlight Leveling Motor RH Communication 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)

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Lighting System