Lexus NX: System Diagram
SYSTEM DIAGRAM

Communication Table
| Transmitter | Receiver | Signal | Communication Method |
| Multi-display Assembly | Radio Receiver Assembly | Windshield deicer switch signal | GVIF |
| Radio Receiver Assembly | Air Conditioning Amplifier Assembly | Windshield deicer switch signal | CAN |
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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 whi
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 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
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On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. INSPECT LIGHT CUT RELAY (a) Remove the upper instrument panel sub-assembly. Click here (b) Remove the light cut relay. (c) Check the resistance. (1) Measure the resistance according to the value(s) in the table below. Sta
INSPECTION PROCEDURE 1. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY (a) w/o Auto Wiper System: (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Front Wiper Switch Tester Connection Condition Specified Condition I125-2 (+B) - I125-3 (+1) MIST