Lexus ES manuals

Lexus ES: Disassembly

DISASSEMBLY

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during cylinder head 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

Auxiliary battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane control system (for HV Model)

Pre-collision system (for HV Model)

Parking support brake system (for HV Model)*

Lighting system (for HV Model)

Memorize steering angle neutral point

Parking assist monitor system (for HV Model)

Panoramic view monitor system (for HV Model)

Initialize power trunk lid system

Power trunk lid system (for HV Model)

Replacement of ECM

Perform Vehicle Identification Number (VIN) registration

MIL illuminates

  • Replacement of engine assembly
  • Gas leak from exhaust system is repaired
  • Replacement of throttle body with motor assembly
  • Cleaning the deposits from the throttle body assembly
  • Replacement of cam timing control motor with EDU assembly
  • Removal and installation of a cam timing control motor with EDU assembly
  • Replacement of camshaft timing gear assembly
  • Removal and installation of a camshaft timing gear assembly
  • Replacement of cylinder head sub-assembly
  • Replacement of camshaft (for intake or exhaust camshaft)
  • Replacement of camshaft timing exhaust gear assembly
  • Replacement of port fuel injector assembly
  • Replacement of direct fuel injector assembly
  • Replacement of fuel pump assembly (for high pressure side)
  • Replacement of engine coolant temperature sensor
  • Replacement of spark plug
  • Replacement of ignition coil assembly
  • Replacement of EGR valve assembly
  • Replacement of knock control 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

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

  • Suspension, tires, etc.*1
  • Replacement of front bumper assembly
  • Measurement of ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Parking support alert system (for HV Model)
  • Parking support brake system (for HV Model)

Suspension, tires, etc.*1

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

Parking assist monitor system (for HV Model)

for Initialization

for Calibration

Replacement of front bumper assembly

Front television camera view adjustment

Panoramic view monitor system (for HV Model)

for Initialization

for Calibration

Suspension, tires, etc.*1

  • 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 (for HV Model)

Suspension, tires, etc.*1

Perform headlight ECU sub-assembly LH initialization*2

  • *: When performing learning using the Techstream.

    Click here

  • *1: If the vehicle height has changed due to suspension or tire replacement.
  • *2: for LED type turn signal light

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)

PROCEDURE

1. REMOVE INTAKE VALVE

(a) Using SST, compress each intake valve compression spring and remove the 8 valve spring retainer locks.

SST: 09202-70020

09202-01010

09202-01020

SST: 09202-00021

HINT:

Arrange the removed parts in such a way that they can be reinstalled to their original locations.

(b) Remove the 8 valve spring retainers, 8 intake valve compression springs and 8 intake valves from the cylinder head sub-assembly.

HINT:

Arrange the removed parts in such a way that they can be reinstalled to their original locations.

2. REMOVE EXHAUST VALVE

(a) Using SST, compress each exhaust valve compression spring and remove the 8 valve spring retainer locks.

SST: 09202-70020

09202-01010

09202-01020

SST: 09202-00021

HINT:

Arrange the removed parts in such a way that they can be reinstalled to their original locations.

(b) Remove the 8 valve spring retainers, 8 exhaust valve compression springs and 8 exhaust valves from the cylinder head sub-assembly.

HINT:

Arrange the removed parts in such a way that they can be reinstalled to their original locations.

3. REMOVE VALVE STEM OIL SEAL

(a) Using needle-nose pliers, remove the 16 valve stem oil seals.

4. REMOVE INTAKE VALVE SPRING SEAT

(a) Using compressed air and a Magnet Hand, remove the 8 intake valve spring seats from the cylinder head sub-assembly by blowing air onto them.

5. REMOVE EXHAUST VALVE SPRING SEAT

(a) Using compressed air and a Magnet Hand, remove the 8 exhaust valve spring seats from the cylinder head sub-assembly by blowing air onto them.

6. REMOVE NO. 1 STRAIGHT SCREW PLUG

NOTICE:

If coolant leaks from a No. 1 straight screw plug or a plug is corroded, replace it.

(a) Using a 6 mm hexagon socket wrench, remove the 4 No. 1 straight screw plugs from the cylinder head sub-assembly.

7. REMOVE STUD BOLT

NOTICE:

If a stud bolt is deformed or its threads are damaged, replace it.

(a) Using an E8 "TORX" socket wrench, remove the 7 stud bolts.

READ NEXT:

 Inspection

INSPECTION PROCEDURE 1. INSPECT CYLINDER HEAD SUB-ASSEMBLY (a) Using a precision straightedge and feeler gauge, measure the warpage of the contact surfaces where the cylinder head sub-assembly contact

 Replacement

REPLACEMENT PROCEDURE 1. REPLACE INTAKE VALVE GUIDE BUSH (a) Heat the cylinder head sub-assembly to between 80 and 100°C (176 and 212°F). (b) Place the cylinder head sub-assembly on wooden blocks. C

 Reassembly

REASSEMBLY PROCEDURE 1. INSTALL SPARK PLUG TUBE HINT: When using a new cylinder head sub-assembly, the spark plug tubes must be replaced. (a) Apply adhesive to a new spark plug tube as shown in the

SEE MORE:

 Front Camera Response Malfunction (C2A6D)

DESCRIPTION During self diagnosis of the parking assist ECU, the parking assist ECU sends display mode ID signals to the front television camera assembly. This DTC is stored when the output of the front television camera assembly does not match the expected output. DTC No. Detection Item DTC

 Sliding Roof Switch Assembly

ComponentsCOMPONENTS ILLUSTRATION *1 MAP LIGHT ASSEMBLY *2 MAP LIGHT SUB-ASSEMBLY *3 ROOF CONSOLE BOX INNER COVER - - ● Non-reusable part - - InspectionINSPECTION PROCEDURE 1. INSPECT MAP LIGHT SUB-ASSEMBLY (PANORAMIC MOON ROOF SWITCH) (for Panoramic Moon Roof)

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