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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On-vehicle Inspection
ON-VEHICLE INSPECTION CAUTION / NOTICE / HINT HINT:
Water Pump Construction Evaporation Port and Drain Plug: *1 Evaporation Port *2 Mechanical Seal *3 Fluid Catch Pocket *4 Drain Plug *a Typical Water Pump Assembly - -
Water Pump Mechanical Seal
The water pum
Short in Knee Airbag (D Side) Squib Circuit (B1860-B1863)
DESCRIPTION The driver side knee squib circuit consists of the airbag ECU assembly and lower No. 1 instrument panel airbag assembly. This circuit instructs the SRS to deploy when deployment conditions are met. These DTCs are stored when a malfunction is detected in the driver side knee squib circuit
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