Lexus NX: Automatic High Beam System

Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Automatic High Beam System

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 Precaution

PRECAUTION HANDLING PRECAUTIONS FOR FORWARD RECOGNITION CAMERA (a) The automatic high beam system uses the forward recognition camera. For precautions related to the forward recognition camera, refer

 Parts Location

PARTS LOCATION ILLUSTRATION *1 FORWARD RECOGNITION CAMERA *2 BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (SKID CONTROL ECU) *3 HEADLIGHT ASSEMBLY LH *4 HEADLIGHT ASSEMBLY RH *5

 System Diagram

SYSTEM DIAGRAM

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 Terminals Of Ecu

TERMINALS OF ECU CHECK WINDSHIELD WIPER RELAY ASSEMBLY (w/ Rain Sensor) (a) Disconnect the I56 windshield wiper relay assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table below. HINT: Measure the values on the wire harness side with the connector disconn

 Left Headlight ECU Variation Error (B2456)

DESCRIPTION This DTC is output when a headlight ECU sub-assembly LH that is incompatible with the vehicle is installed. The headlight ECU sub-assembly LH outputs DTC B2456. DTC No. Detection Item DTC Detection Condition Trouble Area B2456 Left Headlight ECU Variation Error Headlight

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