Toyota Corolla Cross: 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 auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the windshield deicer system may not operate.
FUNCTION OF MAIN COMPONENT
|
Component | Outline |
|---|---|
|
Front Wiper Deicer Switch | Sends signals to the air conditioning control assembly to operate the windshield deicer system. |
|
Air Conditioning Control Assembly | Sends windshield deicer activation request signals to the air conditioning amplifier assembly. |
|
Air Conditioning Amplifier Assembly |
Sends windshield deicer activation request signals to the DEICER relay. |
|
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 Deicer Wire (Windshield Glass) |
Receives power from the DEICER relay and heats the windshield deicer wire (windshield glass). |
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the windshield deicer system.
*: Use the GTS.
PROCEDURE
1. VEHICLE BROUGHT TO WORKSHOP
NEXT
Operation Check
OPERATION CHECK CHECK WINDSHIELD DEICER SYSTEM
(a) Turn the ignition switch to ON. (b) Check that the windshield deicer wire (windshield glass) becomes warm by operating the front wiper deicer switch
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: If the auxiliary battery voltage becomes low, auxiliary battery load control will operate in order to ensure sufficient power is supplied to the power steering system. I
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How To Proceed With Troubleshooting
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2.
CONFIRM PROBLEM SYMPTOMS
NEXT
3.
Headlight ECU LH Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
Headlight ECU LH Communication Stop Mode
Communication stop for "Headlight Control" is indicated on the "Communication
Bus Check" screen of the GTS.
Click here
