Lexus NX: System Diagram
Lexus NX Service Manual / Vehicle Exterior / Window / Glass / Window Defogger System / System Diagram
SYSTEM DIAGRAM
Communication Table | Transmitter | Receiver | Signal | Communication Method |
|---|---|---|---|
| Air Conditioning Control Assembly | Air Conditioning Amplifier Assembly | Rear window defogger switch signal | LIN |
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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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Operation Check
OPERATION CHECK CHECK WINDOW DEFOGGER SYSTEM (a) Turn the power switch on (IG). (b) Check that the rear window defogger becomes warm by operating the rear window defogger switch of the air conditionin
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PTC Heater Circuit
DESCRIPTION The air conditioning amplifier assembly sends operation signals to the PTC heater relays when quick heater assembly operation conditions are met. Based on the signals from the air conditioning amplifier assembly, the PTC heater relays turn on, and power is supplied to the quick heater as
Data List / Active Test
DATA LIST / ACTIVE TEST READ DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may b
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