AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM(except Sedan), Diagnostic DTC:B2420

DTC Code DTC Name
B2420 HL AutoLeveling ECU Failure

DESCRIPTION

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

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B2420

AFS ECU Malfunction

Malfunction of headlight swivel ECU assembly

Headlight swivel ECU assembly

CAUTION / NOTICE / HINT

Note:

If the headlight swivel ECU assembly has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight swivel ECU assembly.

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PROCEDURE

  1. CHECK FOR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > AFS > Clear DTCs

    2. Check for DTCs.

      Click here

      Body Electrical > AFS > Trouble Codes

      OK

      DTC B2420 is not output.

    Result

    Proceed to

    OK

    NG
    OK

    USE SIMULATION METHOD TO CHECK

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    NG

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY

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