Lexus NX: Automatic High Beam Camera (B124C)
Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Automatic High Beam System / Automatic High Beam Camera (B124C)
DESCRIPTION
The main body ECU (multiplex network body ECU) detects a high beam headlight illumination request signal of the automatic high beam system from the forward recognition camera.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B124C | Automatic High Beam Camera | Malfunction in forward recognition camera | Front camera system |
WIRING DIAGRAM
PROCEDURE
| 1. | CHECK FRONT CAMERA SYSTEM |
(a) Check the front camera system.
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Lost Communication with Front Camera Module (U023A)
DESCRIPTION These DTCs are stored when the CAN communication system is malfunctioning. DTC No. Detection Item DTC Detection Condition Trouble Area U023A Lost Communication with Front Ca
Automatic High Beam System does not Operate or Operation Indicator does not Illuminate
DESCRIPTION The main body ECU (multiplex network body ECU) controls the automatic high beam system based on signals received from the forward recognition camera. WIRING DIAGRAM CAUTION / NOTICE / HIN
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Speedometer Malfunction
DESCRIPTION The combination meter assembly receives vehicle speed signals from the brake booster with master cylinder assembly (skid control ECU) via the CAN communication line. The wheel speed sensors output voltages that vary according to the vehicle speed. The brake booster with master cylinder a
Installation
INSTALLATION PROCEDURE 1. INSTALL NO. 1 COOLER THERMISTOR (a) Install the No. 1 cooler thermistor as shown in the illustration. NOTICE:
Be sure to insert the thermistor only once because reinserting it into the same position will not allow it to be firmly secured.
After inserting the therm
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