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 .gif)
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
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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:
Inspection
INSPECTION PROCEDURE 1. CHECK BRAKE CYLINDER AND PISTON (a) Check the cylinder bore and piston for rust or scoring. If necessary, replace the brake cylinder and piston. 2. CHECK PAD LINING THICKNESS (a) Using a ruler, measure the pad lining thickness. Standard thickness: 12.0 mm (0.472 in.) Minimum
Installation
INSTALLATION PROCEDURE 1. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY (a) Apply a light coat of engine oil to a new O-ring and install the O-ring to the camshaft timing oil control valve assembly. NOTICE: Do not damage the O-ring when installing. HINT: An O-ring is already installed in a new
