LIGHTING SYSTEM, Diagnostic DTC:B124C

DTC Code DTC Name
B124C Automatic High Beam Camera

DESCRIPTION

This DTC is stored when the main body ECU (multiplex network body ECU) detects a malfunction in the lane departure warning camera.

DTC No. DTC Detection Condition Trouble Area
B124C Malfunction in lane departure warning camera (automatic high beam camera)

  • Lane departure warning camera

  • Main body ECU (multiplex network body ECU)

WIRING DIAGRAM

A005E99E13
*1 Lane Departure Warning Camera
*2 Main Body ECU (Multiplex Network Body ECU)
*3 CAN Communication Line

CAUTION / NOTICE / HINT

Note

Confirm that the CAN communication system is not malfunctioning before performing the following inspection Click here.

PROCEDURE


  1. CHECK FOR DTC (AUTOMATIC HIGH BEAM SYSTEM)


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      OK
      DTC B124C is not output.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

  2. CHECK FOR DTC (LANE DEPARTURE ALERT SYSTEM)


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      Lane departure alert system DTCs are not output A
      Lane departure alert system DTCs are output B
      CAN communication system DTCs are output C

    B

    GO TO LANE DEPARTURE ALERT SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  3. INSPECT LANE DEPARTURE ALERT WARNING


    1. Check if a lane departure alert system warning message is displayed on the multi-information display.

      OK
      No lane departure alert system warning message are displayed.

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPLACE LANE DEPARTURE WARNING CAMERA Click here