Lexus NX: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of the problem symptom. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
LIN Communication System

Symptom

Suspected Area

Link

Rain sensor LIN communication malfunction*

Rain sensor Lin communication malfunction

Wiper and washer system

Air conditioning LIN communication malfunction

Air conditioning control panel does not operate

Air conditioning system

  • *: w/ Rain Sensor

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 Terminals Of Ecu

TERMINALS OF ECU CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove the main body ECU (multiplex network body ECU). Click here *1 Main Bo

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Check main body ECU (multiplex network body ECU) (1) Connect the Techstream to the DLC3. (2) Turn the power switch on (IG). (3) Turn the Techstream on. (4) Enter the fo

 Data List / Active Test

DATA LIST / ACTIVE TEST READ DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether

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 Pointer Displayed/not Displayed Repeatedly

WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. When replacing the radio receiver assembly, always replace it with a new one. If a radio receiver assembly which was installed to another vehicle is u

 Installation

INSTALLATION PROCEDURE 1. INSTALL WINDSHIELD WIPER RELAY ASSEMBLY (a) Attach the 2 claws to install the windshield wiper relay assembly. 2. INSTALL ECU INTEGRATION BOX RH Click here 3. INSTALL NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Click here 4. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY C

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