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 symptom 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.
Headup Display System

Symptom

Suspected Area

Link

Headup display is not displayed.

Proceed to "Main Switch Circuit"

Fuse (ECU-B NO.1)

-

Wire harness or connector

-

Meter mirror sub-assembly

Brightness of the headup display does not change.

Perform Active Test (Display Brightness)

Read the Data List (Brightness Up Switch (Meter)), Brightness Down Switch (Meter))

Meter mirror sub-assembly

Headup display is not displayed in the correct position.

Perform Active Test (Display Position)

Read the Data List (Projection Position Up Switch (Meter), Projection Position Down Switch (Meter))

Meter mirror sub-assembly

Other headup display malfunction (Other systems are normal)

Meter mirror sub-assembly

READ NEXT:

 Terminals Of Ecu

TERMINALS OF ECU HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) (a) Measure the voltage and resistance according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Des

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (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 / Head Up Display / Tr

 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 SLIDING ROOF SYSTEM DESCRIPTION (a) The sliding roof system controls the sliding roof operation using the sliding roof drive gear sub-assembly (sliding roof ECU). Operating the map light assembly sliding (slide roof switch) results in electrical power being transmitted to the slid

 Removal

REMOVAL PROCEDURE 1. REMOVE NO. 3 DECK BOARD SUB-ASSEMBLY Click here 2. REMOVE REAR DECK FLOOR BOX Click here 3. REMOVE DECK FLOOR BOX LH Click here 4. PRECAUTION CAUTION: Be sure to read Precaution thoroughly before servicing. Click here NOTICE: After the power switch is turned off, there m

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