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
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Removal
REMOVAL PROCEDURE 1. PRECAUTION CAUTION: Be sure to read Precoution thoroughly before serving. Click here NOTICE: After the power switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal. Click here 2. REMOVE NO. 3 DECK BOARD SUB-ASSEMBLY
Drive Motor "A" Inverter Performance (P0A78-284)
DTC SUMMARY MALFUNCTION DESCRIPTION This DTC indicates when the temperature of the inverter for the motor has become abnormal. The cause of this malfunction may be one of the following: Area Main Malfunction Description Step Inverter low-voltage circuit The connectors are not connected
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