DTC    B2420    HL AutoLeveling ECU Failure

for Preparation Click here


DESCRIPTION

When the headlight leveling ECU assembly detects a malfunction in itself, the DTC is stored.

DTC No.
DTC Detection Condition
Trouble Area
B2420
Malfunction of headlight leveling ECU assembly
Headlight leveling ECU assembly

INSPECTION PROCEDURE

1.CHECK FOR DTC

  1. Clear the DTCs (Click here).

  1. Check for DTCs (Click here).

    Result:
    Result
    		Proceed to
    DTC B2420 is not output.
    		A
    DTC B2420 is output (for LHD)
    		B
    DTC B2420 is output (for RHD)
    		C



B
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)

C
REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)
A

USE SIMULATION METHOD TO CHECK (Click here)