| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VKI4 |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 11/2017] |
| Title: LIGHTING (EXT): LIGHTING SYSTEM: B124A; Automatic High Beam Mirror; 2016 - 2017 MY Sienna [12/2015 - 11/2017] | ||
|
DTC |
B124A |
Automatic High Beam Mirror |
DESCRIPTION
The DTC is stored when the main body ECU 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
![2016 - 2020 MY Sienna [12/2015 - ]; LIGHTING (EXT): LIGHTING SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
).
(b) Check for DTCs (See page
).
OK:
DTC B124A is not output.
| OK |
|
USE SIMULATION METHOD TO CHECK (See page
|
| NG |
|
|
|