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 NEXT

 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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 IG Power Supply Voltage (C1551)

DESCRIPTION The power steering ECU assembly distinguishes the power switch status as on (IG) or off through the IG power source circuit. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition C1551 IG Power Supply Voltage IG power

 Moon roof

For comfortable cabin experience, the ceiling (moon roof) can be opened or tilted up. WARNING ■Opening the moon roof Observe the following precautions. Failure to do so may cause death or serious injury. Do not allow any passengers to put their hands or heads outside the vehicle w

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