Lexus ES manuals

Lexus ES: Removal

Lexus ES (XZ10) Service Manual / Steering / Steering Gear / Linkage / Steering Gear / 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 rack and pinion power steering gear assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced (for HV Model:)

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

*2: for LED type turn signal light

Auxiliary battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane control system

Pre-collision system

Parking support brake system*1

Lighting System

Memorize steering angle neutral point

Parking assist monitor system

Panoramic view monitor system

Initialize power trunk lid system

Power trunk lid system

Replacement of ECM

Perform Vehicle Identification Number (VIN) registration

MIL illuminates

  • Replacement of engine assembly
  • Gas leak from exhaust system is repaired
  • Replacement of engine coolant temperature sensor

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

Replacement of inverter with converter assembly

Resolver learning
  • DTCs are stored
  • Slight vibration at a vehicle speed of 5 km/h (3 mph) or less
  • Shock or vibration during acceleration

Replacement of hybrid vehicle transaxle assembly
  • Resolver learning
  • Initialize resolver
  • Suspension, tires, etc.

    (The vehicle height changes because of suspension or tire replacement)

  • Replacement of front bumper assembly
  • Measurement of ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Parking support alert system
  • Parking support brake system

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)

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

Parking assist monitor system

for Initialization:

for Calibration:

Replacement of front bumper assembly

Front television camera view adjustment

Panoramic view monitor system

for Initialization:

for Calibration:

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)
  • Parking assist ECU initialization
  • Adjust steering angle
  • Rear television camera assembly optical axis (Back camera position setting)

Replacement of headlight ECU sub-assembly LH
  • Synchronize the vehicle information
  • Perform headlight ECU sub-assembly LH initialization*2

Lighting system

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)

Perform headlight ECU sub-assembly LH initialization*2

Front wheel alignment adjustment
  1. Clear zero point calibration data.
  2. Perform yaw rate and acceleration sensor zero point calibration.
  • DTCs are stored
  • ABS warning light illuminates
  • Brake warning light / yellow (minor malfunction) illuminates
  • Slip indicator light illuminates
  • VSC disabled or malfunctions

Rack and pinion power steering gear assembly
  • Perform torque sensor zero point calibration
  • Assist map writing
  • DTCs are output
  • Steering effort different between turning steering wheel left and right
  • EPS warning light illuminates

NOTICE:

  • After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System)
  • After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Navigation System)

CAUTION / NOTICE / HINT

Necessary Procedure After Parts Removed/Installed/Replaced (for Gasoline Model:)

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

*2: When the ECM is replaced with a new one, reset memory is unnecessary.

Battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane Control System

Pre-collision System

Parking Support Brake System*1

Lighting System

Memorize steering angle neutral point

Parking Assist Monitor System

Panoramic View Monitor System

Initialize power trunk lid system

Power Trunk Lid System

Replacement of ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU communication ID registration (Immobiliser system)

Engine start function

  • Replacement of engine assembly
  • Gas leak from exhaust system is repaired

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

Replacement of automatic transaxle assembly
  1. Reset Memory
  2. Input transaxle compensation code into ECM
  3. Perform road test to allow ECM to learn
  • Large shift shock
  • Deterioration of fuel efficiency

for Initialization:

for Registration:

Replacement of ECM

(If transaxle compensation code read from ECM)
  1. Reset memory*2
  2. Transfer transaxle compensation code
  3. Perform road test to allow ECM to learn

Replacement of ECM

(If transaxle compensation code not read from ECM)
  1. Reset memory*2
  2. Reset transaxle compensation code
  3. Perform road test to allow ECM to learn

Replacement of ECM

Code registration (Smart access system with push-button start (for Start Function, Gasoline Model)
  • Wireless Door Lock Control System
  • Smart Access System with Push-button Start (for Entry Function, Gasoline Model)
  • Smart Access System with Push-button Start (for Start Function, Gasoline Model)
  • Steering lock function
  • Telematics System

Replacement of automatic transaxle fluid

ATF thermal degradation estimate reset

The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)

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

Parking Assist Monitor System

for Initialization:

for Calibration:

Perform headlight ECU sub-assembly LH initialization

Lighting system

Replacement of front bumper assembly

Front television camera view adjustment

Panoramic View Monitor System

for Initialization:

for Calibration:

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)
  • Parking assist ECU initialization
  • Adjust steering angle
  • Rear television camera assembly optical axis (Back camera position setting)

Front wheel alignment adjustment
  1. Perform "Reset Memory".
  2. Perform acceleration sensor zero point calibration and store system information memorization.
  • VSC is disabled or malfunctions
  • DTCs are output
  • Slip indicator light illuminates
  • ABS warning light illuminates

Rack and pinion power steering gear assembly
  • Perform torque sensor zero point calibration
  • Assist map writing
  • DTCs are output
  • Steering effort different between turning steering wheel left and right
  • EPS warning light illuminates

NOTICE:

  • After the engine switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Audio and Visual System)
  • After the engine switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System)

PROCEDURE

1. PRECAUTION

(a) When handling the rack and pinion power steering gear assembly:

(1) Do not subject the rack and pinion power steering gear assembly (especially the motor and torque sensor) to any impact. Replace the rack and pinion power steering gear assembly with a new one if subjected to a strong impact.

(2) Do not pull the wire harness when moving the rack and pinion power steering gear assembly.

(3) When the rack and pinion power steering gear assembly has been replaced, perform torque sensor zero point calibration.

for A25A-FXS: Click here

for 2GR-FKS: Click here

(b) When disconnecting or reconnecting the connectors:

(1) Before disconnecting connectors related to the power steering system, turn the ignition switch to ON, center the steering wheel, turn the ignition switch off, and then disconnect the connectors.

(2) Before reconnecting connectors related to the power steering system, ensure that the ignition switch is off. Then center the steering wheel and turn the ignition switch to ON.

NOTICE:

Do not turn the ignition switch to ON when the steering wheel is not centered.

(3) If the above operations are not carried out properly, the steering center point (zero point) will deviate, which may lead to a difference in steering effort between turning right and left.

HINT:

If there is a difference in steering effort between turning right and left, perform torque sensor zero point calibration.

for A25A-FXS: Click here

for 2GR-FKS: Click here

2. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

3. SECURE STEERING WHEEL

(a) Secure the steering wheel with the seat belt in order to prevent rotation.

HINT:

This operation is useful to prevent damage to the spiral cable.

4. REMOVE FRONT WHEELS

Click here

5. REMOVE FRONT WHEEL OPENING EXTENSION PAD LH

for A25A-FXS: Click here

for 2GR-FKS: Click here

6. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH

for A25A-FXS: Click here

for 2GR-FKS: Click here

7. REMOVE NO. 1 ENGINE UNDER COVER

for A25A-FXS: Click here

for 2GR-FKS: Click here

8. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY (for A25A-FXS)

Click here

9. REMOVE NO. 2 ENGINE UNDER COVER (for 2GR-FKS)

Click here

10. REMOVE NO. 3 ENGINE UNDER COVER (for 2GR-FKS)

Click here

11. SEPARATE STEERING INTERMEDIATE SHAFT ASSEMBLY

(a) Remove the bolt and slide the steering intermediate shaft assembly.

NOTICE:

Do not separate the steering intermediate shaft assembly from the rack and pinion power steering gear assembly.

*a

Matchmark

(b) Put matchmarks on the rack and pinion power steering gear assembly and steering intermediate shaft assembly.

(c) Separate the steering intermediate shaft assembly from the rack and pinion power steering gear assembly.

12. SEPARATE TIE ROD ASSEMBLY LH

(a) Remove the cotter pin and nut.

(b) Install SST to the tie rod assembly LH as shown in the illustration.

SST: 09960-20010

09961-02060

NOTICE:

Make sure that the upper ends of the tie rod assembly LH and SST are aligned.

(c) Using SST, separate the tie rod assembly LH from the steering knuckle LH as shown in the illustration.

SST: 09960-20010

09961-02010

*a

String

*b

Molybdenum Grease Application Area

*c

Place wrench here

*d

Center Nut

Turn

-

-

CAUTION:

Apply molybdenum grease to the threads and end of the SST bolt.

NOTICE:

  • Be sure to tighten the string firmly to secure SST to the steering knuckle LH to prevent SST from falling off.
  • Install SST with the center nut so that (A) and (B) shown in the illustration are parallel. Otherwise, the ball joint dust cover may be damaged.
  • Be sure to place the wrench on the part shown in the illustration.
  • Do not damage the front disc brake dust cover.
  • Do not damage the ball joint dust cover.
  • Do not damage the steering knuckle LH.

13. SEPARATE TIE ROD ASSEMBLY RH

HINT:

Perform the same procedure as for the LH side.

14. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE

for A25A-FXS: Click here

for 2GR-FKS: Click here

15. REMOVE STEERING GEAR HEAT INSULATOR (for A25A-FXS)

(a) Remove the 2 bolts and steering gear heat insulator from the rack and pinion power steering gear assembly.

16. DISCONNECT WIRE HARNESS

(a) Disconnect the wire harness connector from the rack and pinion power steering gear assembly.

HINT:

Release the lock before rotating the lock lever.

(b) Remove the 2 bolts and separate the wire harness from the rack and pinion power steering gear assembly.

17. REMOVE FUEL DELIVERY GUARD (for A25A-FXS)

Click here

18. INSTALL ENGINE HANGERS

for A25A-FKS: Click here

for 2GR-FKS: Click here

19. REMOVE FRONT FRAME ASSEMBLY

Click here

20. REMOVE FRONT STABILIZER BAR WITH BRACKET

(a) Remove the 2 bolts and separate the front No. 1 stabilizer bracket LH from the front frame assembly.

(b) Remove the 2 bolts and separate the front No. 1 stabilizer bracket RH from the front frame assembly.

HINT:

Perform the same procedure as for the LH side.

(c) Remove the front stabilizer bar with the 2 front stabilizer links, front No. 1 stabilizer bracket LH, front No. 1 stabilizer bracket RH and 2 front No. 1 stabilizer bar bushings from the front frame assembly.

21. REMOVE RACK AND PINION POWER STEERING GEAR ASSEMBLY

(a) Remove the 4 bolts, 4 nuts and rack and pinion power steering gear assembly from the front frame assembly.

NOTICE:

Because the nut has its own stopper, do not turn the nut. Loosen the bolt with the nut secured.

22. SECURE RACK AND PINION POWER STEERING GEAR ASSEMBLY

(a) Using SST, secure the rack and pinion power steering gear assembly in a vise.

SST: 09612-00012

HINT:

Wrap SST with protective tape before use.

*a

Protective Tape

23. REMOVE TIE ROD ASSEMBLY LH

(a) Put matchmarks on the tie rod assembly LH and rack and pinion power steering gear assembly.

*a

Matchmark

(b) Remove the tie rod assembly LH and lock nut.

24. REMOVE TIE ROD ASSEMBLY RH

HINT:

Perform the same procedure as for the LH side.

25. REMOVE STEERING GEAR HEAT INSULATOR (for 2GR-FKS)

(a) Remove the 2 bolts and steering gear heat insulator from the rack and pinion power steering gear assembly.

READ NEXT:

 Disassembly

DISASSEMBLY PROCEDURE 1. REMOVE STEERING RACK BOOT CLIP (for LH Side) (a) Using pliers, remove the steering rack boot clip. 2. REMOVE STEERING RACK BOOT CLIP (for RH Side) HINT: Perform the same proce

 Inspection

INSPECTION PROCEDURE 1. INSPECT TIE ROD ASSEMBLY LH (a) Secure the tie rod assembly LH in a vise between aluminum plates. NOTICE: Do not overtighten the vise. (b) Install the nut to the

 Reassembly

REASSEMBLY PROCEDURE 1. INSTALL NO. 2 STEERING RACK BOOT (a) Apply lithium soap base glycol grease to the inside of the small opening of a new No. 2 steering rack boot. Lithium Soap Base Glycol

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