AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM, Diagnostic DTC:B2420

DTC Code DTC Name
B2420 AFS ECU Malfunction

DESCRIPTION

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

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

CAUTION / NOTICE / HINT

Note

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

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE HEADLIGHT LEVELING ECU (HEADLIGHT SWIVEL ECU ASSEMBLY) Click here