Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during navigation ECU removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

*1: When performing learning using the Techstream.

Click here

Disconnect cable from negative battery terminal

Memorize steering angle neutral point

Lane Control System

Pre-collision System

Intelligent Clearance Sonar System*1

Parking Assist Monitor System

Panoramic View Monitor System

Lighting System (w/ Automatic Headlight Beam Level Control System)

Initialize back door lock

Power Door Lock Control System

Reset back door close position

Power Back Door System (w/ Outside Door Control Switch)

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

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(a) for Audio and Visual System:

NOTICE:

  • When performing the following work, the audio and visual system may restart when turning the engine switch on (ACC) (due to radio receiver assembly and navigation ECU certification).
    • Repair or replace the negative (-) battery terminal due to it being disconnected or depleted.
    • The radio receiver assembly or navigation ECU replacement or removal and installation.
  • After replacing the navigation ECU, if the "New software is not compatible with the system. Contact your dealer." on-screen message is displayed on the multi-display, update the software of the radio receiver assembly.

NOTICE:

Click here

(b) for Navigation System:

NOTICE:

  • When performing the following work, the navigation system may restart when turning the engine switch on (ACC) (due to radio receiver assembly and navigation ECU certification).
    • Repair or replace the negative (-) battery terminal due to it being disconnected or depleted.
    • The radio receiver assembly or navigation ECU replacement or removal and installation.
  • After replacing the navigation ECU, if the "New software is not compatible with the system. Contact your dealer." on-screen message is displayed on the multi-display assembly, update the software of the radio receiver assembly.

NOTICE:

Click here

2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

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3. REMOVE LOWER NO. 2 INSTRUMENT PANEL FINISH PANEL

Click here

4. REMOVE LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL

Click here

5. REMOVE INSTRUMENT CLUSTER FINISH PANEL ORNAMENT

Click here

6. REMOVE LOWER INSTRUMENT FINISH PANEL SUB

Click here

7. REMOVE RADIO RECEIVER ASSEMBLY WITH REGISTER

Click here

8. REMOVE NO. 1 NAVIGATION WIRE

(a) Disconnect the 2 connectors to remove the No. 1 navigation wire.

9. REMOVE NO. 1 RADIO BRACKET

Click here

10. REMOVE NO. 2 RADIO BRACKET

Click here

11. REMOVE NAVIGATION ECU

    Components
    COMPONENTS ILLUSTRATION *1 INSTRUMENT CLUSTER FINISH PANEL ORNAMENT *2 LOWER INSTRUMENT FINISH PANEL SUB *3 LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL *4 LOWER NO. 2 INSTRUMENT PANE ...

    Navigation System
    ...

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