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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Lost Communication with Brake System Control Module (U0129,U0140,U0293)
DESCRIPTION These DTCs are stored when the CAN communication system is malfunctioning. DTC No. Detection Item DTC Detection Condition Trouble Area U0129 Lost Communication with Brake System Control Module The vehicle approaching speaker controller does not receive data from the skid
Removal
REMOVAL PROCEDURE 1. REMOVE HYBRID VEHICLE TRANSAXLE ASSEMBLY Click here 2. REMOVE TRANSMISSION INPUT DAMPER ASSEMBLY (a) Using SST, hold the crankshaft pulley assembly. SST: 09213-54015 SST: 09330-00021 HINT: Part number of installation bolt for SST (crankshaft pulley holding tool): 91551-806
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