Lexus ES manuals

Lexus ES: System Description

Lexus ES (XZ10) Service Manual / Vehicle Interior / Window / Glass / Windshield Deicer System (for Hv Model) / 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 (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 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).

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 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

SEE MORE:

 Initialization

INITIALIZATION NOTICE: The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during headlight ECU sub-assembly LH removal/installation are shown below. for LED Type Turn Signal Light Replaced

 System Description

SYSTEM DESCRIPTION POWER MIRROR CONTROL SYSTEM (w/o Memory) DESCRIPTION (a) This system has the following functions: electrical remote control mirror function, power retract mirror function, mirror heater function and automatic glare-resistant EC mirror function. FUNCTION OF MAIN COMPONENT Compon

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