DESCRIPTION
The DTC is stored when the main body ECU (driver side junction block assembly) detects malfunctions in the inner rear view mirror assembly.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B124A |
Malfunction in 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 B124A is not output.
OK |
USE SIMULATION METHOD TO CHECK |
NG |
REPLACE INNER REAR VIEW MIRROR ASSEMBLY |
Light bulbs
You may replace the following bulbs yourself. The difficulty level of replacement
varies depending on the bulb. If necessary bulb replacement seems difficult to perform,
contact your Toyota dealer.
For more information about replacing other light bulbs, c ...
Illumination Circuit
DESCRIPTION
Power is supplied to the radio and display receiver assembly and steering pad
switch assembly illumination when the light control switch is in the tail or head
position.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
The vehicle ...
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR SEAT HEADREST ASSEMBLY
(a) Press the headrest support button and pull up the rear seat headrest
assembly as shown in the illustration.
2. REMOVE REAR SEAT CENTER ...