Lexus NX: System Description
Lexus NX Service Manual / Vehicle Interior / Seat / Climate Control Seat System / System Description
SYSTEM DESCRIPTION
GENERAL
(a) The seat blower has 3 levels, controlled by operating the climate control switch on air conditioning control assembly.
(b) Whether the blower is on or off can be determined by checking if the climate control switch indicator light is on or off.
(c) The blowers of both seats are controlled by the air conditioning amplifier assembly.
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use this procedure to troubleshoot the climate control seat system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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Operation Check
OPERATION CHECK CHECK AIR DUST (a) Check that there are no cracks or damage on the air ducts of the seat climate control blower and seatback climate control blower, and that the air ducts are installe
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
If the auxiliary battery voltage is low, the climate control seat system may not operate. When "High Power Consumption Partial Limit On AC/Heater Operation." is displ
SEE MORE:
Air Conditioning Control Panel does not Operate
DESCRIPTION A malfunction occurs in LIN communication of the components related to the air conditioning between the air conditioning amplifier and air conditioning control. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
When using the Techstream with the power switch off to troubleshoot:
Connect
System Diagram
SYSTEM DIAGRAM Sender Receiver Signal Line
*: w/ Blind Spot Monitor System
Parking Assist ECU Multi-display Assembly Display GVIF cable Radio Receiver Assembly Multi-display Assembly Display GVIF cable Steering Sensor Parking Assist ECU
Data continuity
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