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 | DTC Output from |
---|---|---|---|---|
B124C | Automatic High Beam Camera | Malfunction in forward recognition camera | Front camera system | Main body ECU (multiplex network body ECU) |
WIRING DIAGRAM
PROCEDURE
1. | CHECK FRONT CAMERA SYSTEM |
(a) Check front camera system.
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Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Fuel Tank: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during fuel pump removal/installation are shown below. Necessary Procedures After Parts Removed/Installed/Repla ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 12.3 Inch Display): GVIF Disconnected (from Park Assist/Monitoring ECU to EMV/MM Integrated Device) (B1574)
DESCRIPTION The multi-display assembly and parking assist ECU are connected via video signal (digital) lines. This DTC is stored when a video signal (digital) line is disconnected. DTC No. Detection Item DTC Detection Condition Trouble Area B1574 GVIF Disconnected (from Park Assist/Mo ...