Lexus ES manuals

Lexus ES: 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

DTC Output from

B124C

Automatic High Beam Camera

Malfunction in forward recognition camera

Front camera system

Main Body

WIRING DIAGRAM

PROCEDURE

1.

CHECK FRONT CAMERA SYSTEM

(a) Check front camera system.

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 Headlight Swivel ECU LH Communication (B2410,B2411)

DESCRIPTION Each headlight ECU sub-assembly and headlight swivel motor communicate via LIN communication. The headlight swivel motor operates according to power supplied and automatic headlight beam l

 Headlight Swivel Motor LH (B2412,B2413,B2417,B2418)

DESCRIPTION The headlight ECU sub-assembly LH sends automatic headlight beam level control signals to each headlight swivel motor and headlight leveling motor via LIN communication. Each headlight ECU

 Steering Position Sensor (B2414)

DESCRIPTION The headlight ECU sub-assembly LH receives steering angle signals from the steering sensor via CAN communication and performs light control. for LED Type Turn Signal Light DTC No. Det

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 Terminals Of Ecu

TERMINALS OF ECU CHECK WINDSHIELD WIPER MOTOR ASSEMBLY (a) Disconnect the A38 windshield wiper motor assembly connector. (b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Descrip

 System Diagram

SYSTEM DIAGRAM Communication Table Transmitter Receiver Signal Communication Method Rear Window Defogger Switch (Air Conditioning Control Assembly) Air Conditioning Amplifier Assembly Rear Window Defogger Switch Signal LIN

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