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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Purge Valve
ComponentsCOMPONENTS ILLUSTRATION *1 PURGE VSV *2 FUEL VAPOR FEED HOSE *3 NO. 2 FUEL VAPOR FEED HOSE - - RemovalREMOVAL PROCEDURE 1. REMOVE PURGE VSV (a) Disconnect the wire harness clamp and connector from the purge VSV. (b) Slide the 2 clamps and disconnect
Components
COMPONENTS ILLUSTRATION *A for Single Beam Headlight - - *1 HEADLIGHT ASSEMBLY LH *2 HEADLIGHT ECU SUB-ASSEMBLY LH *3 HEADLIGHT GASKET - - ● Non-reusable part - - ILLUSTRATION *A for Triple Beam Headlight - - *1 HEADLIGHT ASSEMBLY LH *2
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