Lexus NX: 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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END

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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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 On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. CHECK FUEL PUMP OPERATION AND INSPECT FOR FUEL LEAK (a) Check fuel pump operation. (1) Connect the Techstream to the DLC3. (2) Turn the power switch on (IG). NOTICE: Do not start the engine. (3) Turn the Techstream on. (4) Enter the following menus: Powertrain / En

 Parts Location

PARTS LOCATION ILLUSTRATION *1 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH *2 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH *3 FRONT DOOR LOCK ASSEMBLY LH *4 POWER WINDOW REGULATOR SWITCH ASSEMBLY *5 MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY *6 FRONT POWER WINDOW REGULAT

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