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. Detection Item DTC Detection Condition Trouble Area
B2420 HL AutoLeveling ECU Failure Malfunction of headlight leveling ECU assembly Headlight leveling ECU assembly

CAUTION / NOTICE / HINT

Note

If the headlight leveling ECU assembly has been replaced, it is necessary to synchronize the vehicle information and initialize the headlight leveling ECU assembly.

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PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

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      Body Electrical > HL AutoLeveling > Clear DTCs

    2. Check for DTCs.

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      Body Electrical > HL AutoLeveling > Trouble Codes
      OK
      DTC B2420 is not output.
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE HEADLIGHT LEVELING ECU ASSEMBLY Click here