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 |
Operation Check
OPERATION CHECK
1. CHECK NAVIGATION SYSTEM NORMAL CONDITION
(a) If the symptom is applicable to any of the following, it is intended behavior,
and not a malfunction.
Symptom
Answer
A longer route than expected is cho ...
Automatic High Beam Mirror (B124A)
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
...
Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL FRONT DIFFERENTIAL CASE REAR TAPERED ROLLER BEARING
(a) Using SST and a press, install a new front differential case rear
tapered roller bearing (inner race) to the front differential case.
SST: 09726-36010
...