Lexus NX: System Description

SYSTEM DESCRIPTION

GENERAL

The windshield deicer thin heater wires are attached to the inside of the windshield glass to help deice the window surface more quickly. The indicator light illuminates while the system is operating. The system automatically turns off after approximately 15 minutes.

NOTICE:

If the auxiliary battery voltage becomes low, windshield deicer operation is canceled to prioritize supplying power to the power steering system.

for Power Tilt and Power Telescopic Steering Column: Click here

for Manual Tilt and Manual Telescopic Steering Column: Click here

FUNCTION OF MAIN COMPONENT

Component

Outline

Multi-display Assembly

Sends signals to the radio receiver assembly to operate the windshield deicer.

Air Conditioning Amplifier Assembly

Sends windshield deicer activation request signals to the front wiper deicer relay.

Front Wiper Deicer Relay

Receives windshield deicer activation request signals from the air conditioning amplifier assembly and supplies power to the windshield deicer wire (windshield glass).

Windshield Glass (Windshield Deicer Wire)

Receives power from the front wiper deicer relay and heats the windshield deicer.

READ NEXT:

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the windshield deicer system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT

 Operation Check

OPERATION CHECK CHECK WINDSHIELD DEICER SYSTEM (a) Turn the power switch on (IG). (b) Check that the windshield deicer becomes warm by operating the windshield deicer switch of the multi-display assem

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE NOTICE: If the auxiliary battery voltage becomes low, windshield deicer operation is canceled to prioritize supplying power to the power steering system. for Power Tilt and Powe

SEE MORE:

 Calibration

CALIBRATION SELECT COMPASS DISPLAY MODE (w/ Compass) (a) The compass switch allows selection of the compass display. *1 Compass Display *2 Compass Switch PERFORM CALIBRATION (w/ Compass) (a) The compass indicates the direction that the vehicle is heading by detecting the direction and

 Parts Location

PARTS LOCATION ILLUSTRATION *1 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH *2 SHIFT LEVER POSITION SENSOR *3 SIDE TURN SIGNAL LIGHT ASSEMBLY LH *4 SIDE TURN SIGNAL LIGHT ASSEMBLY RH *5 OUTER REAR VIEW MIRROR ASSEMBLY LH *6 OUTER REAR VIEW MIRROR ASSEMBLY RH *7 HE

© 2016-2025 Copyright www.lexunx.com