Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: System Description

SYSTEM DESCRIPTION

GENERAL

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

NOTICE:

If the battery voltage is low, the windshield deicer system may not operate. When "Operation of Electrical Items Restricted." is not displayed on the multi-information display in the combination meter assembly, check the Data List item "Battery Control Count (Body ECU)".

Click here

FUNCTION OF MAIN COMPONENT

Component

Outline

Front Wiper Deicer Switch (Multi Display Assembly)

Sends signals to the air conditioning amplifier assembly to operate the windshield deicer system.

Air Conditioning Amplifier Assembly

Sends windshield deicer activation request signals to the semiconductor pwr integration ECU.

Semiconductor Pwr Integration ECU

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

Windshield Deicer Wire (Windshield Glass)

Receives power from the semiconductor pwr integration ECU and heats the windshield deicer wire (windshield glass).

    System Diagram
    SYSTEM DIAGRAM Sender Receiver Signal Communication Method Radio Receiver Assembly Air Conditioning Amplifier Assembly Front wiper deicer switch signal CAN ...

    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 ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Camshaft Oil Control Valve (for Bank 1): On-vehicle Inspection
    ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY Click here 2. INSPECT CAMSHAFT TIMING GEAR BOLT (a) for intake side: (1) Check the stroke of the plunger in the center of the camshaft timing gear bolt. Standard Stroke: 4.5 mm (0.177 in.) or more HINT: W ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Lin Communication System: LIN Communication Bus Malfunction (B2325)
    DESCRIPTION If the main body ECU (multiplex network body ECU) detects a communication error with an ECU connected to the door bus lines for 7 seconds or more, DTC B2325 will be stored. DTC No. Detection Item DTC Detection Condition Trouble Area B2325 LIN Communication Bus Malfunction ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2025 Copyright www.lexusrx.net
    0.0144