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 Click here

    NG

    REPLACE AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Click here