LIGHTING SYSTEM, Diagnostic DTC:B2420

DTC Code DTC Name
B2420 HL AutoLeveling ECU Failure

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

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. 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 (for LHD) Click here

    C

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (for RHD) Click here

    A

    USE SIMULATION METHOD TO CHECK Click here