Lexus NX: 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 air conditioning control assembly is turned on.
(c) Check that the front seat surface temperature changes according to the operation of the seat heater switch on the air conditioning control assembly as follows: HI → MID → LO.
CHECK SEAT HEATER (for Rear) (w/ Rear Seat Heater)
(a) Turn the power switch on (IG).
(b) Check that the indicator illuminates and the surface of the rear seat warms up, when the refreshing seat switch turned on.
(c) Check that the rear seat surface temperature changes according to the operation of the seat heater switch on the air conditioning control assembly as follows: HI → MID → LO.
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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
Terminals Of Ecu
TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY (a) Disconnect the I50 air conditioning amplifier assembly connector. (b) Measure the voltage and resistance according to the value(s) in th
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Seat heater system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctio
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Lost Communication with ECM / PCM "A" (U0100,U0142,U023A)
DESCRIPTION
U0100: The meter mirror sub-assembly receives signals from the ECM via CAN communication.
U0142: The meter mirror sub-assembly receives signals from the main body ECU (multiplex network body ECU) via CAN communication.
U023A: The meter mirror sub-assembly receives signals from the
Rain Sensor LIN Communication Malfunction
DESCRIPTION A malfunction occurs in LIN communication of the components related to the rain sensor between the rain sensor and windshield wiper relay assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
When using the Techstream with the power switch off to troubleshoot:
Connect the Techstre
