Lexus NX: System Description
SYSTEM DESCRIPTION
FRONT SEAT HEATER
(a) By operating the seat heater switch on the air conditioning control assembly, the temperature can be controlled within the range of 32 to 43°C (89 to 109°F).
(b) The seat heater switch indicator lights indicate seat heater operating status.
(c) The seat heaters of both seats are controlled by the seat heater control sub-assemblies.
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure to troubleshoot the seat heater system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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Operation Check
OPERATION CHECK CHECK SEAT HEATER (for Front) (a) Turn the power switch on (IG). (b) Check that the indicator illuminates and the surface of the front seat warms up, when the seat heater switch on the
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE:
If the auxiliary battery voltage is low, the seat heater system may not operate. When "High Power Consumption / Partial Limit On AC/Heater Operation" is displayed on
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Installation
INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The following procedure is for the LH side.
NOTICE:
Because the RH side flexible hose and LH side flexible hose are not interchangeable, verify the part number when installing the rear flexible hose
Inspection
INSPECTION PROCEDURE 1. INSPECT ELECTRICAL KEY TRANSMITTER SUB-ASSEMBLY NOTICE: When replacing the transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key transmitter sub-assembly from bein
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