Dtc B124B Automatic High Beam System

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - LIGHTING EXT

DESCRIPTION

INSPECTION PROCEDURE

CHECK FOR DTC

DTC B124B Automatic High Beam System

DESCRIPTION

This DTC is stored when the main body ECU detects malfunctions in the automatic high beam system.

DTC CodeDTC Detection ConditionTrouble Area
B124BMalfunction in automatic high beam system
CAN communication system
Inner rear view mirror assembly

INSPECTION PROCEDURE

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

Check for DTCs ().

Result
ResultProceed to
DTC B2415 is outputA
DTC B2427 is outputB
DTC B124B is outputC
B
GO TO B2427 ()
C
REPLACE INNER REAR VIEW MIRROR ASSEMBLY ()
A
GO TO B2415 ()