Toyota CH-R Service Manual: System Description



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.


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

Click here




Air Conditioning Control Assembly

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

Air Conditioning Amplifier Assembly

Sends windshield deicer activation request signals to the DEICER relay.


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

Windshield Glass (Windshield Deicer)

Receives power from the DEICER relay and heats the windshield glass (windshield deicer).

    System Diagram

    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 BROU ...

    Other materials:

    Toyota CH-R Service Manual > Lin Communication System: Data List / Active Test
    DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may ...

    Toyota CH-R Service Manual > Tire Pressure Warning System: Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTC (for TIRE PRESSURE WARNING ECU AND RECEIVER) (USING Techstream) (a) Turn the ignition switch off. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Enter the following menus: Chassis / Tire Pressure Monitor / ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2022 Copyright