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.

Symptom

Suspected Area

Link

The front passenger seat condition differs from the indication by the passenger airbag ON/OFF indicator (DTC is not output).

Trouble in Passenger Airbag ON/OFF Indicator

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 Terminals Of Ecu

TERMINALS OF ECU OCCUPANT DETECTION ECU HINT: Since the occupant detection ECU uses waterproof connectors, the voltage and waveform cannot be inspected directly. Standard voltage and waveforms are in

 Diagnosis System

DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here FUNCTION OF PASSENGER AIRBAG ON/OFF INDICATOR (a) Initial check (1) Turn the power switch on (IG). (2) The passenger airbag ON/OFF indicat

 Dtc Check / Clear

DTC CHECK / CLEAR DTC CHECK (a) Turn the power switch off. (b) Connect the Techstream to the DLC3. (c) Turn the power switch on (IG). (d) Turn the Techstream on. (e) Enter the following menus: Body El

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 System Description

SYSTEM DESCRIPTION BACK DOOR CLOSER SYSTEM DESCRIPTION (a) Operating any back door opener switch assembly when the back door is fully closed inputs a request signal to the multiplex network door ECU. The multiplex network door ECU outputs a "latch release" command to the back door lock assembly in r

 Front Airbag Sensor (LH) (B1615)

DESCRIPTION The front airbag sensor LH consists of a diagnostic circuit and frontal deceleration sensor, etc. If the airbag ECU assembly receives signals from the frontal deceleration sensor, it determines whether the SRS should be activated. DTC B1615 is stored when a malfunction is detected in the

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