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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Components
COMPONENTS ILLUSTRATION *1 CANISTER PUMP MODULE *2 CHARCOAL CANISTER ASSEMBLY *3 FRONT FLOOR COVER CENTER LH *4 VENT LINE HOSE *5 AIR INLET LINE HOSE *6 PURGE LINE HOSE Specified torque: N*m (kgf*cm, ft.*lbf) ● Non-reusable part
Low Output Signal of Rear Speed Sensor RH (C1273,C1274,C1466,C1467)
DESCRIPTION Each speed sensor detects the wheel speed and sends the signals to the skid control ECU (brake booster with master cylinder assembly). These signals are used for ABS control. DTCs C1273 and C1274 are cleared when the speed sensor sends a wheel speed signal or when Test Mode ends. DTCs C1
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