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

Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual / Drivetrain / Mf1a (transfer / 4wd / Awd) / Transfer Assembly / 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 transfer assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replacement 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

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

Parking assist monitor system

Panoramic view monitor 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 automatic transaxle assembly

Perform the following procedures in the order shown:

  1. Input transaxle compensation code into ECM
  2. Perform road test to allow ECM to learn
  • Large shift shock
  • Deterioration of fuel efficiency

for Initialization:

for Registration:

Replacement of ECM

(If possible, read the transaxle compensation code from the previous ECM)

Perform the following procedures in the order shown:

  1. Transfer transaxle compensation code
  2. Perform road test to allow ECM to learn

Replacement of ECM

(If impossible, read the transaxle compensation code from the previous ECM)

Perform the following procedures in the order shown:

  1. Reset transaxle compensation code
  2. Perform road test to allow ECM to learn

Front wheel alignment adjustment

Calibration
  • VSC disabled or malfunctions
  • DTCs are stored
  • Slip indicator light illuminates
  • ABS warning light illuminates

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)
  • Ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent clearance sonar system
  • Intuitive parking assist system (w/ Intelligent Clearance Sonar System)

Rear television camera assembly optical axis (Back camera position setting)

Parking assist monitor system

for Initialization:

for Calibration:
  • Parking assist ECU initialization
  • Adjust steering angle

Panoramic view monitor system

for Initialization:

for Calibration:

Initialize No. 1 headlight ECU sub-assembly LH

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

Replacement of throttle body with motor assembly

Inspection After Repair
  • Poor idle, etc.
  • Engine start function, etc.

Cleaning the deposits from the throttle body with motor assembly

Air leaks from intake system is repaired

Gas leak from exhaust system is repaired

Replacement of ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU communication ID registration (Immobiliser system)

Engine start function

Perform code registration (Immobiliser system)
  • Wireless door lock control system
  • Smart access system with push-button start
  • Engine start function
  • Steering lock system
  • Telematics system

*1: When performing learning using the Techstream.

Click here

CAUTION:

The automatic transaxle assembly is very heavy. Be sure to follow the procedure described in the repair manual, or the transmission jack may suddenly drop.

*a

Object Exceeding Weight Limit of Transmission Jack

NOTICE:

If automatic transaxle parts are replaced, refer to Parts Replacement Compensation Table to determine if any additional operations are necessary.

Click here

PROCEDURE

1. REMOVE AUTOMATIC TRANSAXLE ASSEMBLY

Click here

2. REMOVE TRANSFER ASSEMBLY

(a) Remove the 8 nuts.

(b) Using a plastic hammer, remove the transfer assembly from the automatic transaxle assembly.

NOTICE:

  • Remove the transfer assembly from the automatic transaxle assembly without tilting it.
  • During removal, do not hold the transfer assembly by the oil seals on either side of the transfer assembly.

(c) Remove the 4 transfer and transaxle setting stud bolts from the automatic transaxle assembly.

HINT:

Perform this procedure only when replacement of the transfer and transaxle setting stud bolt is necessary.
    Components
    COMPONENTS ILLUSTRATION *1 AUTOMATIC TRANSMISSION ASSEMBLY *2 TRANSFER AND TRANSAXLE SETTING STUD BOLT *3 TRANSFER ASSEMBLY - - N*m (kgf*cm, ft.*lbf): Specified torque ● ...

    Inspection
    INSPECTION PROCEDURE 1. INSPECT PRELOAD (a) Inspect Driven Pinion Preload: (1) Using SST and a torque wrench, measure the preload of the backlash between the driven pinion and ring gear. SST: 09326 ...

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