Lexus NX: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. 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.
Vehicle Proximity Notification System

Symptom

Suspected Area

Link

Sound is not produced

Refer to "There is No Sound Made"

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 Terminals Of Ecu

TERMINALS OF ECU CHECK VEHICLE APPROACHING SPEAKER CONTROLLER (a) Disconnect the A80 vehicle approaching speaker controller connector. (b) Measure the voltage and resistance according to the value(s)

 Dtc Check / Clear

DTC CHECK / CLEAR DTC CHECK (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Vehicle Proximity No

 Data List / Active Test

DATA LIST / ACTIVE TEST 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 a pa

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 System Description

SYSTEM DESCRIPTION GENERAL (a) Deceleration sensors used for the airbag system are installed on various parts of the vehicle and calculate the deceleration rate of each part during a collision. (b) Depending on the situation, the airbag ECU assembly sends a deployment signal to each airbag based on

 Ignition Hold Monitor Malfunction (B2271)

DESCRIPTION This DTC is stored when a malfunction in the IG circuit and IG hold circuit in the certification ECU (smart key ECU assembly) is detected. DTC No. Detection Item DTC Detection Condition Trouble Area Note B2271 Ignition Hold Monitor Malfunction When either of the follow

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