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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Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Safety Connect System DTC No. Detection Item Link B153711 Telephone Sub Antenna Circuit Short to Ground B153713 Telephone Sub Antenna Circuit Open B157011 Indicator (Red) Circuit Short to Ground B157013 Indicator (Red) Circu
Precaution
PRECAUTION ADAPTIVE VARIABLE SUSPENSION SYSTEM PRECAUTION NOTICE:
Performing work after replacing the absorber control ECU with a normally functioning one from another vehicle may result in DTCs being stored, or have a negative effect on other systems. When replacing the absorber control ECU, be
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