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AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM, Diagnostic DTC:B2420

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DTC Code DTC Name
B2420 HL AutoLeveling ECU Failure
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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
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CAUTION / NOTICE / HINT

Note:

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

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PROCEDURE


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    CHECK FOR DTC


    1. Clear the DTCs (Click here).

    2. Check for DTCs (Click here).

      OK
      DTC B2420 is not output.

    • OK

      USE SIMULATION METHOD TO CHECK (Click here)

    • NG

      REPLACE HEADLIGHT LEVELING ECU ASSEMBLY (Click here)