LIGHTING SYSTEM, Diagnostic DTC:B124C
| DTC Code | DTC Name |
|---|---|
| B124C | Automatic High Beam Camera |
DESCRIPTION
This DTC is stored when the main body ECU detects malfunctions in the camera (inner rear view mirror assembly [automatic high beam sensor]).
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| B124C | Malfunction in camera (inner rear view mirror assembly [automatic high beam sensor]) | Inner rear view mirror assembly (automatic high beam sensor) |
WIRING DIAGRAM
| *a | Inner Rear View Mirror Assembly (Automatic High Beam Sensor) |
| *b | Main Body ECU |
| *c | LIN Communication Line |
| *d | CAN Communication Line |
CAUTION / NOTICE / HINT
Note
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
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CHECK FOR DTC
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Clear the DTC Click here.
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Check for DTC Click here.
OK DTC B124C is not output
OK 
USE SIMULATION METHOD TO CHECK Click here
NG
REPLACE INNER REAR VIEW MIRROR ASSEMBLY (AUTOMATIC HIGH BEAM SENSOR) Click here
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