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Home >> Lexus >> 2019 >> RX 350L FWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Navigation System - Service Information >> Navigation Ecu >> Removal [08/2019 - ] >> Procedure

Removal [08/2019 - ]: Procedure

  1. PRECAUTION 
    NOTE:

    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.

    Refer to PRECAUTION [08/2019 - ]

    1. for Audio and Visual System:
      NOTE:
      • 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.

      Refer to PRECAUTION [08/2019 - ]

    2. for Navigation System:
      NOTE:
      • 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.

      Refer to PRECAUTION [08/2019 - ]

  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

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

    Refer to INITIALIZATION [08/2019 - ]

  3. REMOVE LOWER NO. 2 INSTRUMENT PANEL FINISH PANEL 

    Refer to PROCEDURE - Step 2

  4. REMOVE LOWER NO. 1 INSTRUMENT PANEL FINISH PANEL 

    Refer to PROCEDURE - Step 3

  5. REMOVE INSTRUMENT CLUSTER FINISH PANEL ORNAMENT 

    Refer to PROCEDURE - Step 5

  6. REMOVE LOWER INSTRUMENT FINISH PANEL SUB 

    Refer to PROCEDURE - Step 10

  7. REMOVE RADIO RECEIVER ASSEMBLY WITH REGISTER 

    Refer to PROCEDURE - Step 7

  8. REMOVE NO. 1 NAVIGATION WIRE 
    1. Disconnect the 2 connectors to remove the No. 1 navigation wire.
      GTY963066Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE NO. 1 RADIO BRACKET 

    Refer to PROCEDURE - Step 12

  10. REMOVE NO. 2 RADIO BRACKET 

    Refer to PROCEDURE - Step 13

  11. REMOVE NAVIGATION ECU