Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000028LKO
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [11/2022 -           ]
Title: G16E-GTS (ENGINE MECHANICAL): CYLINDER HEAD GASKET: REMOVAL; 2023 - 2025 MY GR Corolla [11/2022 -        ]

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 cylinder head gasket 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

*1:w/ Steering Lock Function

Replacement of ECM

Perform Vehicle Identification Number (VIN) or frame number registration

MIL illuminates

2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

ECU configuration

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2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: ECU CONFIGURATION

Update ECU security key

Vehicle Control History (RoB) are stored

2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: UPDATE ECU SECURITY KEY

Heavy Knock History

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2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

ECU communication ID registration (Immobiliser system)

Engine start function

2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

Code registration (Smart Key System (for Gasoline Model, Start Function))

  • Wireless Door Lock Control System (for Gasoline Model with Smart Key System)
  • Smart Key System (for Gasoline Model, Entry Function)
  • Smart Key System (for Gasoline Model, Start Function)
  • Steering lock function*1

2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

  • Replacement of throttle body with motor assembly
  • Cleaning the deposits from the throttle body with motor assembly
  • Replacement of engine assembly
  • 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 fuel pump assembly (for high pressure side)
  • Replacement of fuel pressure sensor (for high pressure side)
  • Replacement of air fuel ratio sensor
  • Replacement of engine coolant temperature sensor
  • Replacement of spark plug
  • Replacement of ignition coil assembly
  • Replacement of knock control sensor
  • Replacement of turbocharger sub-assembly
  • Gas leaks from exhaust system is repaired

Inspection After Repair

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

2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

Front wheel alignment adjustment

  • Perform "Reset Memory"
  • Perform "Calibration"
  • VSC is disabled or malfunctions
  • DTCs are output
  • Slip indicator light illuminates
  • ABS warning light illuminates

2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): UTILITY

Tire

ECU Data Initialization (When performing tire replacement after RoB code X2104 is output)

Active Torque Split AWD System

2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]; GF1A (TRANSFER / 4WD / AWD): ACTIVE TORQUE SPLIT AWD SYSTEM: CALIBRATION

NOTICE:

This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

HINT:

When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

  • Learning completes when vehicle is driven

    Effect/Inoperative Function When Necessary Procedures are not Performed

    Necessary Procedures

    Link

    Front Camera System

    Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.

    2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; ADVANCED DRIVER ASSISTANCE SYSTEM: FRONT CAMERA SYSTEM: INITIALIZATION

  • Learning completes when vehicle is operated normally

    Effect/Inoperative Function When Necessary Procedures are not Performed

    Necessary Procedures

    Link

    Power door lock control system

    • Back door opener

    Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.

    2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 -        ]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: INITIALIZATION

PROCEDURE

1. REMOVE INTAKE CAMSHAFT SUB-ASSEMBLY

Click here 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): CAMSHAFT: REMOVAL+

2. REMOVE NO. 1 CAMSHAFT BEARING CAP

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

3. REMOVE NO. 5 CAMSHAFT BEARING CAP

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

4. REMOVE NO. 1 VALVE ROCKER ARM SUB-ASSEMBLY

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

5. REMOVE VALVE LASH ADJUSTER ASSEMBLY

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

6. REMOVE VALVE STEM CAP

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

7. REMOVE CYLINDER HEAD SUB-ASSEMBLY

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

8. REMOVE CYLINDER HEAD GASKET

(a) Remove the cylinder head gasket from the cylinder block sub-assembly.

9. INSPECT CYLINDER HEAD SET BOLT

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE UNIT: INSPECTION+

10. INSPECT CYLINDER HEAD SUB-ASSEMBLY

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): CYLINDER HEAD: INSPECTION+