Lexus RX (RX 350L, RX450h) 2016-2026 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 ignition coil assembly or spark plug removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

Battery terminal is disconnected/reconnected

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)

  • Replacement of throttle body with motor assembly
  • Cleaning the deposits from the throttle body with motor assembly
  • Replacement of ignition coil assembly
  • Replacement of spark plug

Inspection After Repair

  • Poor idle, etc.
  • Engine start function, etc.

*1: When performing learning using the Techstream.

Click here

PROCEDURE

1. REMOVE INTAKE AIR SURGE TANK ASSEMBLY

Click here

2. REMOVE IGNITION COIL ASSEMBLY

(a) Disconnect the 6 ignition coil assembly connectors.

(b) Remove the 6 bolts and 6 ignition coil assemblies from the cylinder head cover sub-assembly and cylinder head cover sub-assembly LH.

NOTICE:

If an ignition coil assembly has been struck or dropped, replace it.

HINT:

Arrange the removed parts in the correct order.

3. REMOVE SPARK PLUG

(a) Remove the 6 spark plugs from the cylinder head sub-assembly and cylinder head LH.

NOTICE:

If a spark plug has been struck or dropped, replace it.

HINT:

Arrange the removed parts in the correct order.

    Components
    COMPONENTS ILLUSTRATION *1 IGNITION COIL ASSEMBLY *2 SPARK PLUG N*m (kgf*cm, ft.*lbf): Specified torque - - ...

    Installation
    INSTALLATION PROCEDURE 1. INSTALL SPARK PLUG HINT: Perform "Inspection After Repair" after replacing a spark plug. Click here (a) Install the 6 spark plugs to the cylinder head sub-assembly and cyl ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Stop Light Switch: Installation
    INSTALLATION PROCEDURE 1. INSTALL STOP LIGHT SWITCH ASSEMBLY (a) Temporarily install the stop light switch assembly with stop light switch lock nut as shown in the illustration. *a Stop Light Switch Lock Nut Install in this Direction (b) Turn the stop light switch assembly so that ...

    Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): Initialization
    INITIALIZATION INITIALIZE MULTIPLEX NETWORK DOOR ECU NOTICE: Initialization of the multiplex network door ECU (back door initial position learning) is necessary if any of the following have been performed with the back door open. The cable is disconnected from the negative (-) battery terminal. ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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