Lexus NX: System Diagram
SYSTEM DIAGRAM

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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 determi
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 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
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DESCRIPTION The blower with fan motor sub-assembly is operated by signals from the air conditioning amplifier assembly. Blower motor speed signals are transmitted in accordance with changes in the duty ratio. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
Inspect the fuses for circuits related t
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Radar Cruise1*1 or Radar Cruise2*2 / Trouble Codes. Powertrain > Radar Cruise1 > Trouble Codes Powertrain > Radar Cr