LIGHTING SYSTEM, Diagnostic DTC:B242A

DTC Code DTC Name
B242A Variation Information Error

DESCRIPTION

This DTC is output when a main body ECU or AFS ECU which is not matched to the vehicle is installed.

DTC Code DTC Detection Condition Trouble Area
B242A Main body ECU or AFS ECU is not matched to the vehicle

  • AFS ECU

  • Main body ECU (driver side junction block assembly)

INSPECTION PROCEDURE

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTC Click here.


    NEXT

  2. CHECK FOR DTC


    1. Check for DTC Click here.

      OK
      DTC B242A output does not occur

    NG

    CHECK AFS ECU AND MAIN BODY ECU Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  3. CHECK AFS ECU AND MAIN BODY ECU


    1. Check that the AFS ECU and main body ECU are matched to the vehicle.

      OK
      The parts are matched to the vehicle.
      Result
      Result Proceed to
      Main body ECU is not matched to the vehicle A
      AFS ECU is not matched to the vehicle B

    B

    REPLACE AFS ECU Click here

    A

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)