Lexus NX: 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 NEXT

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 Freeze Frame Data

FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever an automatic headlight beam level control system DTC is stored, the headlight ECU subassembly LH stores the current vehicle state as freeze frame data. CHECK FREEZE FRAME DATA (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG).

 Replacement

REPLACEMENT PROCEDURE 1. REPLACE INTAKE VALVE GUIDE BUSH (a) Heat the cylinder head sub-assembly to approximately 80 to 100°C (176 to 212°F). (b) Place the cylinder head sub-assembly on wooden blocks. (c) Using SST and a hammer, tap out the intake valve guide bush. SST: 09201-01055 SST: 09950-7

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