CYLINDER HEAD 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 engine unit 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 Memorize steering angle neutral point LKA/LDA System

Click here

Pre-crash safety system

Lighting system (EXT)


  • Cornering lights

Adaptive high beam system
Drive the vehicle until stop and start control is permitted (approximately 15 to 60 minutes) Stop and start system

Click here

Memorize steering angle neutral point Parking Assist Monitor System (w/ Parallel Parking Assist Function)

Click here

Parking Assist Monitor System (w/o Parallel Parking Assist Function)

Click here

Panoramic view monitor system

Click here

Initialize back door lock Power door lock control system

Click here

Reset back door close position Power back door system

Click here

Replacement of ECM Perform Vehicle Identification Number (VIN) or frame number registration
  • MIL illuminates / -

  • DTC P063051 is stored

Click here

ECU Communication ID Registration (Immobiliser system) Engine start function See Service Bulletin for the registration method.

  • Replacement of cylinder head sub-assembly

  • Replacement of camshaft (for intake or exhaust camshaft)

  • Replacement of camshaft timing gear assembly

  • 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

  • Gas leak from exhaust system is repaired

  • Replacement of knock control sensor

Inspection After Repair
  • Poor idle, etc.

  • Engine start function, etc.

Click here

Replacement of starter assembly*1

Note

When the starter assembly is replaced, "ST relay" and "ST NO. 2 relay" must be also replaced.

Clear Number of Starter Operations Stop and start system

Click here

Replacement of battery*1
  • Integrated Current Value Initialization

  • Switch Battery Type


  • Replacement of automatic transaxle assembly*1

  • Replacement of automatic transaxle fluid*1

Bleed the oil pump assembly with motor (continuously variable transaxle assembly)
Replacement of automatic transaxle assembly

Perform the following procedures in the order shown:


  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

Click here for Initialization (U661E)

Click here for Registration (U661E)

Click here for Initialization (U661F)

Click here for Registration (U661F)

Replacement of ECM

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

Possible to read transaxle compensation code

Perform the following procedures in the order shown:


  1. Reset Memory

  2. Transfer Transaxle Compensation Code

  3. Perform Road Test to Allow ECM to Learn

Impossible to read transaxle compensation code

Perform the following procedures in the order shown:


  1. Reset Memory

  2. Reset Transaxle Compensation Code

  3. Perform Road Test to Allow ECM to Learn

Suspension, tires, etc.*2 Rear television camera assembly optical axis (Back camera position setting) Parking assist monitor system (w/ Parallel Parking Assist Function)

Click here for Initialization

Click here for Calibration

Parking assist monitor system (w/o parallel parking assist function)

Click here for Initialization

Click here for Calibration


  • Parking assist ECU initialization

  • Adjust steering angle

Panoramic view monitor system

Click here for Initialization

Click here for Calibration

Initialize headlight ECU sub-assembly LH
  • Adaptive high beam system

  • Automatic headlight beam level control system

Click here

Front wheel alignment adjustment
  1. Clearing zero point calibration data and system information.

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


  • VSC disabled or malfunctions

  • DTCs are stored

  • Slip indicator light illuminates

  • ABS warning light illuminates

  • Theft deterrent system (tilt sensor)*3

Click here

*1: w/ Stop and Start System
*2: The vehicle height changes because of suspension or tire replacement
*3: w/ TFT Meter Type

PROCEDURE


  1. REMOVE INTAKE VALVE


    1. B005MNCN01

      Using SST, compress the 8 compression springs and remove the 8 valve spring retainer locks.

      SST
      09202-70020   ( 09202-00010, 09202-01010 )
      09202-00021
    2. Remove the 8 valve spring retainers, 8 compression springs and 8 intake valves from the cylinder head sub-assembly.

      Tech Tips

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

  2. REMOVE EXHAUST VALVE

    CAUTION:


    • The exhaust valve is filled with sodium. Sodium is a strong alkali which can produce a dangerous chemical reaction. Be very careful when handling and disposing of it.

    • Do not intentionally expose the sodium in exhaust valve. If sodium enters your eyes, vision loss may occur. If sodium contacts your skin, burns may occur. If a fire occurs due to a chemical reaction with sodium, burns may occur.

    • If the sodium in the exhaust valve is exposed, perform all necessary preparations to safely remove and dispose of the sodium.

    • When removing a damaged exhaust valve, always wear rubber gloves and safety glasses.

    • Do not intentionality cut or break open the exhaust valve to remove the sodium.

    Tech Tips


    • The sodium inside the exhaust valve is safe as long as it remains sealed inside the exhaust valve.

    • Exhaust valves filled with sodium can be identified by their "NA" identification mark.


    1. B005LE9N01

      Using SST, compress the 8 compression springs and remove the 8 valve spring retainer locks.

      SST
      09202-70020   ( 09202-00010, 09202-01010 )
      09202-00021
    2. Remove the 8 valve spring retainers, 8 compression springs and 8 exhaust valves from the cylinder head sub-assembly.

      Tech Tips

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

  3. REMOVE VALVE STEM OIL SEAL


    1. B005M7U

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

  4. REMOVE VALVE SPRING SEAT


    1. B005PUH

      Using compressed air and a Magnet Hand, remove the 16 valve spring seats by blowing air onto them.

  5. REMOVE NO. 1 STRAIGHT SCREW PLUG

    Note

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


    1. B005MIF

      Using a 14 mm hexagon socket wrench, remove the 6 No. 1 straight screw plugs and 6 gaskets.

  6. REMOVE STUD BOLT

    Note

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


    1. B005M8P

      Using E8 and E10 "TORX" socket wrenches, remove the 9 stud bolts.

  7. DISPOSE OF EXHAUST VALVE

    CAUTION:


    • The exhaust valve is filled with sodium. Sodium is a strong alkali which can produce a dangerous chemical reaction. Be very careful when handling and disposing of it.

    • Do not intentionally expose the sodium in exhaust valve. If sodium enters your eyes, vision loss may occur. If sodium contacts your skin, burns may occur. If a fire occurs due to a chemical reaction with sodium, burns may occur.

    • If the sodium in the exhaust valve is exposed, perform all necessary preparations to safely remove and dispose of the sodium.

    • When removing a damaged exhaust valve, always wear rubber gloves and safety glasses.

    • Do not intentionality cut or break open the exhaust valve to remove the sodium.

    Tech Tips


    • The sodium inside the exhaust valve is safe as long as it remains sealed inside the exhaust valve.

    • Exhaust valves filled with sodium can be identified by their "NA" identification mark.


    1. Waste disposal preparation

      CAUTION:

      Observe the following precautions when performing the disposal procedure.


      1. Have a suitable fire extinguisher close by.

      2. Wear safety glasses.

      3. Wear rubber gloves.

    2. Waste disposal


      1. Remove the damaged exhaust valve from the cylinder head sub-assembly.

      2. Prepare a large container, such as a bucket or oil can, filled with 10 liter (10.6 US qts, 8.8 Imp. qts) or more of water and place it in a well ventilated area.

      3. Using pliers or a large pair of tweezers, hold the damaged exhaust valve upright and submerge it into the water.

        CAUTION:


        • Make sure to fully submerge the damaged exhaust valve in water.

        • Do not allow any sparks or other flames near the container as hydrogen gas is generated by the chemical reaction.

        • Stay at least 2 m away from the receptacle as a strong chemical reaction occurs.