Lexus NX: Parts Location
Lexus NX Service Manual / Vehicle Exterior / Window / Glass / Window Defogger System / Parts Location
PARTS LOCATION
ILLUSTRATION
| *1 | AIR CONDITIONING CONTROL ASSEMBLY - REAR WINDOW DEFOGGER SWITCH | *2 | INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-IG NO.1 FUSE - ECU-IG NO.3 FUSE |
| *3 | DLC3 | - | - |
ILLUSTRATION
| *1 | DEFOGGER RELAY | *2 | AIR CONDITIONING AMPLIFIER ASSEMBLY |
| *3 | BACK DOOR GLASS - DEFOGGER WIRE | *4 | NO. 2 ENGINE ROOM RELAY BLOCK |
| *5 | DEF FUSE | *6 | ECU-B NO.2 FUSE |
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System Diagram
SYSTEM DIAGRAM Communication Table Transmitter Receiver Signal Communication Method Air Conditioning Control Assembly Air Conditioning Amplifier Assembly Rear window defogger switch
System Description
SYSTEM DESCRIPTION GENERAL (a) The rear window defogger wires are attached to the inside of the back door glass and defog the window surface quickly when the rear window defogger switch on the air con
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
Use the following procedure to troubleshoot the window defogger system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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IG Signal Circuit
DESCRIPTION This circuit detects whether the power switch is on (IG) or off, and sends this information to the main body ECU (multiplex network body ECU). WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedur
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
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