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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INSPECTION PROCEDURE 1. INSPECT FOG LIGHT ASSEMBLY LH (a) Apply battery voltage to the connector and check the light illumination condition. OK: Condition Specified Condition Battery positive (+) → 2 (B) Battery negative (-) → 1 (E) Illuminates If the result is not as specified
DIAGNOSTIC TROUBLE CODE CHART Automatic High Beam System DTC No. Detection Item Link B124B Automatic High Beam System B124C Automatic High Beam Camera U023A Lost Communication with Front Camera Module