DTC B2451: Variation Code not Written [09/2020 - ]: Description

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2024 Lexus IS 500, 2024 Lexus IS 350, 2024 Lexus IS 300, 2023 Lexus IS 500, and 2023 Lexus IS 350. However, it is still accessible from the selected car via links, so may be relevant.

The headlight ECU sub-assembly LH stores this DTC if the vehicle specifications have not been stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from
B2451	Variation Code not Written	Detection condition: The engine switch is on (IG). Malfunction status: Vehicle specifications have not been stored Malfunction duration: -	Headlight ECU sub-assembly LH	HL AutoLeveling

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

DTC Output from

B2451

Variation Code not Written

Detection condition:

The engine switch is on (IG).

Malfunction status:

Vehicle specifications have not been stored

Malfunction duration:

Headlight ECU sub-assembly LH

HL AutoLeveling