Lexus RX (RX 350L, RX450h) 2016-2024 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 camshaft timing gear bolt 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

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 ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU communication ID registration (Immobiliser system)

Engine start function

Perform the following procedures in the order shown (If possible, read the transaxle compensation code from the previous ECM):

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

for U881E Initialization

U881E Registration

U881F Initialization

U881F Registration

Perform the following procedures in the order shown (If impossible, read the transaxle compensation code from the previous ECM):

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

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

  • Replacement of throttle body with motor assembly
  • Cleaning the deposits from the throttle body with motor assembly

Inspection after repair

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

Replacement of brake actuator assembly

Operate the electric parking brake switch assembly

Parking brake indicator light (red) blinks when the engine switch is first turned on (IG)

Perform yaw rate and acceleration sensor zero point calibration and store system information.

  • VSC disabled or malfunctioning
  • DTCs are output
  • Slip indicator light illuminated
  • ABS warning light illuminated

*1: When performing learning using the Techstream.

Click here

PROCEDURE

1. REMOVE FRONT WHEEL RH

Click here

2. REMOVE FRONT FENDER APRON SEAL RH

Click here

3. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 2)

Click here

4. SET NO. 1 CYLINDER TO TDC/COMPRESSION

(a) Turn the crankshaft pulley clockwise until its timing mark (cutout) is aligned with the timing mark on the timing chain cover assembly as shown in the illustration.

*a

Timing Mark

*b

Timing Mark (Cutout)

(b) Check that the cutout of the camshaft timing gear assembly is at the top.

HINT:

If the cutout of the camshaft timing gear assembly (for exhaust side) is not at the top, turn the crankshaft 360° clockwise and align the timing mark (cutout) of the crankshaft pulley with the timing mark on the timing chain cover assembly again.

*a

Correct

*b

Incorrect

*c

Cutout

*d

Up

5. REMOVE CAMSHAFT TIMING GEAR BOLT (for Exhaust Side of Bank 2)

(a) While holding the crankshaft pulley, remove the camshaft timing gear bolt.

NOTICE:

  • If the camshaft timing gear bolt has been struck or dropped, replace it.
  • Do not turn the crankshaft pulley after removing the camshaft timing gear bolt.

6. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

Click here

7. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

Click here

8. REMOVE NO. 2 ENGINE UNDER COVER

Click here

9. REMOVE ECM

Click here

10. REMOVE INTAKE AIR SURGE TANK ASSEMBLY

Click here

11. REMOVE INLET AIR CLEANER ASSEMBLY

Click here

12. REMOVE BATTERY

for 2WD: Click here

for AWD: Click here

13. REMOVE BATTERY CARRIER SUB-ASSEMBLY

for 2WD: Click here

for AWD: Click here

14. REMOVE BATTERY BRACKET REINFORCEMENT

for 2WD: Click here

for AWD: Click here

15. REMOVE FUEL PUMP PROTECTOR

Click here

16. REMOVE WIRE HARNESS CLAMP BRACKET

for 2WD: Click here

for AWD: Click here

17. REMOVE BRAKE ACTUATOR ASSEMBLY

Click here

18. DISCONNECT NO. 1 RADIATOR HOSE

Click here

19. INSTALL ENGINE SUPPORT BRIDGE

for 2WD: Click here

for AWD: Click here

20. REMOVE NO. 2 ENGINE MOUNTING STAY RH

Click here

21. REMOVE ENGINE MOUNTING INSULATOR SUB-ASSEMBLY RH

Click here

22. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 2)

Click here

23. REMOVE CAMSHAFT TIMING GEAR BOLT (for Intake Side of Bank 2)

(a) Using an 8 mm socket wrench, remove the stud bolt.

(b) Make sure that the No. 1 cylinder is at TDC/compression.

HINT:

Check that the cutout of the camshaft timing gear assembly is at the top and align the timing mark (cutout) of the crankshaft pulley with the timing mark on the timing chain cover assembly.

(c) While holding the crankshaft pulley, remove the camshaft timing gear bolt.

NOTICE:

  • If the camshaft timing gear bolt has been struck or dropped, replace it.
  • Do not turn the crankshaft pulley after removing the camshaft timing gear bolt.
    On-vehicle Inspection
    ON-VEHICLE INSPECTION PROCEDURE 1. REMOVE CAMSHAFT TIMING GEAR BOLT Click here 2. INSPECT CAMSHAFT TIMING GEAR BOLT (a) for intake side: (1) Check the stroke of the plunger in the center of the ...

    Installation
    INSTALLATION PROCEDURE 1. INSTALL CAMSHAFT TIMING GEAR BOLT (for Intake Side of Bank 2) NOTICE: There are different types of camshaft timing gear bolts. Make sure to check the identification mark to d ...

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

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

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