Dtc B124A Automatic High Beam Mirror

Vehicle Exterior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Lighting (Ext). Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

DTC B124A Automatic High Beam Mirror

DTC B124C Automatic High Beam Camera


DESCRIPTION

This DTC is stored when the main body ECU detects malfunctions in the inner rear view mirror assembly.

DTC Code
DTC Detection Condition
Trouble Area
B124A
Malfunction in inner rear view mirror
Inner rear view mirror assembly
B124C
Malfunction in inner rear view mirror camera portion
Inner rear view mirror assembly

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Lighting (Ext).Lighting System. Dtc B124A Automatic High Beam Mirror


INSPECTION PROCEDURE

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

  1. Clear the DTCs (Click here).

  1. Check for DTCs (Click here).

    OK:
    DTC B124A or B124C is not output.


NG
REPLACE INNER REAR VIEW MIRROR ASSEMBLY (Click here)
OK

USE SIMULATION METHOD TO CHECK (Click here)