AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL SYSTEM, Diagnostic DTC:B2415

DTC Code DTC Name
B2415 Vehicle Speed Sensor Malfunction

DESCRIPTION

The headlight light control ECU sub-assembly receives wheel speed signals from the brake booster with master cylinder assembly.

The headlight light control ECU sub-assembly LH outputs DTC B2415.

DTC No. Detection Item DTC Detection Condition Trouble Area
B2415 Vehicle Speed Sensor Malfunction Malfunction in vehicle speed signal

  • Headlight light control ECU sub-assembly LH

  • Electronically controlled brake system

WIRING DIAGRAM

A01MK21E16
*1 Headlight Light Control ECU Sub-assembly LH
*2 Brake Booster with Master Cylinder Assembly
*3 CAN Communication Line

CAUTION / NOTICE / HINT

Note


  • First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this DTC.

    Click here

  • After the headlight light control ECU sub-assembly LH is replaced, vehicle information registration and initialization are necessary.

    Click here

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > HL AutoLeveling > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs.

      Click here


      Body Electrical > HL AutoLeveling > Trouble Codes
      Result
      Result Proceed to
      DTC B2415 output does not occur A
      DTC B2415 output occurs B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

  3. CHECK FOR DTC (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)


    1. Check for DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      OK
      Electronically controlled system DTCs are not output.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY LH Click here

    NG

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM Click here