LIGHTING SYSTEM, Diagnostic DTC:B2420

DTC Code DTC Name
B2420 AFS ECU Malfunction

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
B2420 A malfunction in the headlight swivel ECU. Headlight swivel ECU assembly

INSPECTION PROCEDURE

Note

After replacing the headlight swivel ECU, perform initialization and registration of vehicle information Click here.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B2420 output does not occur.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    C

    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY Click here

    A

    USE SIMULATION METHOD TO CHECK Click here