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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Lost Communication with Main Body ECU (U0140,U0142,U0155,U0293,U1117)
DESCRIPTION These DTCs are stored when there is a CAN communication error between the hybrid vehicle control ECU, certification ECU (smart key ECU assembly), ECM, main body ECU (multiplex network body ECU) or combination meter assembly, and data from the option connector (bus buffer ECU) cannot be r
Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE:
Do not replace the spiral with sensor cable sub-assembly with the battery connected and the engine switch on (IG).
Do not rotate the spiral with sensor cable sub-assembly when the following conditions are met: 1) The steering wheel is removed, 2) the
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