DESCRIPTION
The DTC is stored when the main body ECU (driver side junction block assembly) detects malfunctions in the camera (inner rear view mirror assembly).
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B124C |
Malfunction in camera (inner rear view mirror assembly) |
Inner rear view mirror assembly |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
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.
PROCEDURE
1. |
CHECK FOR DTC |
(a) Clear the DTCs (See page ).
(b) Check for DTCs (See page ).
OK:
DTC B124C is not output.
OK | ![]() |
USE SIMULATION METHOD TO CHECK |
NG | ![]() |
REPLACE INNER REAR VIEW MIRROR ASSEMBLY |
Driver Side Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
When the entry lock and unlock functions do not operate only for the driver door,
an error in output request codes from the driver door or malfunction in the front
door outside handle assembly is suspected. If the entry functions for the other ...
Display does not Dim when Light Control Switch is Turned ON
PROCEDURE
1.
CHECK IMAGE QUALITY SETTING
(a) Turn the light control switch to the tail or head position.
(b) Check that the daytime screen setting on the display adjustment screen is
set to on.
Result
...
No Answer-Back
DESCRIPTION
In some cases, wireless door lock control functions are normal but the hazard
warning light and/or wireless door lock buzzer answer-back function(s) does not
operate. In such cases, the main body ECU (driver side junction block assembly)
haz ...