AFS (ADAPTIVE FRONT-LIGHTING SYSTEM), Diagnostic DTC:B2420

DTC Code DTC Name
B2420 AFS ECU Malfunction

DESCRIPTION

When the AFS ECU (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 AFS ECU (headlight swivel ECU assembly)

AFS ECU (headlight swivel ECU assembly)

CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE

  1. CHECK FOR DTC

    1. Clear the DTCs.

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      Body Electrical > AFS > Clear DTCs

    2. Check for DTCs.

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      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 AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)

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