AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL 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, this DTC is stored.

DTC No. DTC Detection Condition Trouble Area
B2420 Malfunction of headlight leveling ECU assembly Headlight leveling ECU assembly

INSPECTION PROCEDURE

Note

If the headlight leveling ECU assembly has been replaced, initialization of the headlight leveling ECU assembly is necessary Click here.

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B2420 is not output.

    NG

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here