Lexus ES manuals

Lexus ES: 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 timing chain cover assembly 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

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 throttle body with motor assembly
  • Cleaning the deposits from the throttle body with motor assembly
  • Replacement of fuel injector assembly (for port injection)
  • Replacement of fuel injector assembly (for direct injection)
  • Replacement of fuel pump assembly (for high pressure side)
  • Replacement of ignition coil assembly
  • Air leaks from intake system
  • Gas leak from exhaust system is repaired
  • Replacement of knock control sensor

Inspection after repair

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

Replacement of automatic transaxle assembly

  • Perform reset memory
  • Input transaxle compensation code into ECM
  • 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)

  • Perform reset memory*2
  • Transfer transaxle compensation code
  • Perform road test to allow ECM to learn

Replacement of ECM

(If transaxle compensation code not read from ECM)

  • Perform reset memory*2
  • Reset transaxle compensation code
  • 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

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

  • Replacement of front television camera assembly
  • Replacement of front bumper assembly
  • Replacement of radiator grille

Front television camera view adjustment

Panoramic View Monitor System

for Initialization

for Calibration

Replacement of front bumper assembly

  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Parking Support Alert System
  • Parking Support Brake System

  • *1: When performing learning using the Techstream.

    Click here

  • *2: Not necessary when ECM replaced with new one

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. REMOVE OIL PAN SUB-ASSEMBLY

Click here

2. REMOVE TIMING CHAIN CASE OIL SEAL

Click here

3. REMOVE TIMING CHAIN COVER ASSEMBLY

(a) w/ Stud Bolt:

(1) Remove the 23 bolts and 2 nuts shown in the illustration.

*a

Nut

(b) w/o Stud Bolt:

(1) Remove the 25 bolts shown in the illustration.

(c) Remove the timing chain cover assembly by prying between the timing chain cover assembly and cylinder head sub-assembly or cylinder block sub-assembly with a screwdriver with its tip wrapped with protective tape.

NOTICE:

Be careful not to damage the contact surfaces of the cylinder head sub-assembly, cylinder block sub-assembly and timing chain cover assembly.

*a

Protective Tape

(d) Remove the oil pump gasket from the cylinder block sub-assembly.

READ NEXT:

 Disassembly

DISASSEMBLY PROCEDURE 1. REMOVE OIL PUMP RELIEF VALVE (a) Using a 27 mm socket wrench, remove the oil pump relief valve plug from the oil pump cover. (b) Remove the oil pump relief valv

 Inspection

INSPECTION PROCEDURE 1. INSPECT OIL PUMP RELIEF VALVE (a) Coat the oil pump relief valve with engine oil and check that it falls smoothly into the valve hole by its own weight. HINT: If the oil pum

 Reassembly

REASSEMBLY PROCEDURE 1. INSTALL OIL PUMP ROTOR SET (a) Coat the drive rotor and driven rotor with engine oil and place them into the timing chain cover assembly with the rotor marks facing up. Chec

SEE MORE:

 Inspection

INSPECTION PROCEDURE 1. INSPECT AIR FUEL RATIO SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Condition 1 (HA1A) - 2 (+B) 20°C (68°F) 1.6 to 3.2 Ω 1 (HA1A) - 4 (A1A-) Always 10 k

 Components

COMPONENTS ILLUSTRATION *1 ENGINE WATER PUMP ASSEMBLY *2 NO. 2 IDLER PULLEY SUB-ASSEMBLY *3 WATER PUMP PULLEY *4 WATER PUMP GASKET *5 V-RIBBED BELT - - N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part Do not apply lubricants to the threade

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