Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001QF90
Model Year Start: 2021 Model: RAV4 HV Prod Date Range: [08/2020 - 12/2021]
Title: A25A-FXS (ENGINE MECHANICAL): CYLINDER HEAD GASKET: REMOVAL; 2021 MY RAV4 HV [08/2020 - 12/2021]

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

*: When performing learning using the Techstream.

Click here 2019 - 2022 MY RAV4 HV [02/2019 - 10/2022]; PARK ASSIST / MONITORING: PARKING SUPPORT BRAKE SYSTEM (for HV Model): CALIBRATION

Auxiliary battery terminal is disconnected/reconnected

Perform steering sensor zero point calibration

Lane control system

2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]; PRE-COLLISION: PRE-COLLISION SYSTEM: INITIALIZATION

Parking support brake system (for HV model)*

Pre-collision system

Lighting system (EXT) (w/ AFS)

Memorize steering angle neutral point

Parking assist monitor system

2019 - 2022 MY RAV4 RAV4 HV [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: INITIALIZATION

Panoramic view monitor system (for HV model)

2019 - 2022 MY RAV4 HV [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for HV Model): INITIALIZATION

Reset back door close position

Power back door system (for HV model)

2019 - 2023 MY RAV4 HV [11/2018 - 10/2023]; DOOR / HATCH: POWER BACK DOOR SYSTEM (for HV Model): INITIALIZATION

Back door lock initialization

Power door lock control system

2019 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: INITIALIZATION

Replacement of ECM

Perform Vehicle Identification Number (VIN) registration

DTC P063051 is output

2021 - 2024 MY RAV4 RAV4 HV [08/2020 -        ]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

Grille shutter switch specification infomation

Vehicle control history (RoB) [X260E] is stored

2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

  • Gas leak from exhaust system is repaired
  • Replacement of throttle body with motor 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 spark plug
  • Replacement of ignition coil assembly
  • Replacement of EGR valve assembly
  • Replacement of knock control sensor
  • Replacement of air fuel ratio sensor (sensor 2)

Inspection after repair

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

2021 MY RAV4 RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

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

2019 - 2024 MY RAV4 HV [02/2019 -        ]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for AWD with NICKEL METAL HYDRIDE BATTERY): UTILITY

Replacement of hybrid vehicle transaxle assembly

  • Resolver learning
  • Initialize resolver

Suspension, tires, etc.

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

Television camera assembly optical axis (Back camera position setting)

Parking assist monitor system

2019 - 2022 MY RAV4 RAV4 HV [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM: CALIBRATION

  • Parking assist ECU initialization
  • Adjust steering angle

Panoramic view monitor system (for HV model)

2019 - 2022 MY RAV4 HV [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for HV Model): CALIBRATION

Replacement of headlight ECU sub-assembly LH

  • Synchronize the vehicle information
  • Perform headlight ECU sub-assembly LH initialization

Lighting system (EXT)(w/ Headlight ECU)

2019 - 2021 MY RAV4 RAV4 HV [11/2018 - 12/2021]; LIGHTING (EXT): LIGHTING SYSTEM (w/ Headlight ECU without AFS): INITIALIZATION

Suspension, tires, etc.

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

Perform headlight ECU sub-assembly LH initialization

Front wheel alignment adjustment

  1. Clear zero point calibration data and stored linear solenoid valve calibration data
  2. Initialization and calibration of the linear solenoid valve
  3. Yaw rate and acceleration sensor zero point calibration

VSC malfunction

2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): UTILITY

Front bumper assembly (Including removal and installation)

Front television camera view adjustment

Panoramic view monitor system (for HV model)

2019 - 2022 MY RAV4 HV [11/2018 - 10/2022]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for HV Model): CALIBRATION

NOTICE:

  • After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, be sure to wait for the time specified in the following table before disconnecting the cable from the negative (-) auxiliary battery terminal.

    Waiting Time before Disconnecting Cable from Negative (-) Auxiliary Battery Terminal

    System Name

    See Procedure

    Vehicle enrolled in Toyota Audio Multimedia system or safety connect system

    6 minutes

    Vehicle not enrolled in Toyota Audio Multimedia system and safety connect system

    1 minute

  • 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 - 2024 MY RAV4 RAV4 HV [11/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

PROCEDURE

1. INSTALL ENGINE ASSEMBLY TO ENGINE STAND

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL

2. REMOVE ENGINE HANGERS

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL+

3. REMOVE COMPRESSOR ASSEMBLY WITH PULLEY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

4. REMOVE NO. 2 WATER BY-PASS PIPE SUB-ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

5. REMOVE FLOW SHUTTING VALVE (WATER BY-PASS HOSE ASSEMBLY)

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

6. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

7. REMOVE MANIFOLD STAY

Click here 2021 - 2024 MY RAV4 HV [08/2020 -        ]; A25A-FXS (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

8. REMOVE EXHAUST MANIFOLD

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

9. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY

Click here 2021 - 2024 MY RAV4 HV [08/2020 -        ]; A25A-FXS (ENGINE CONTROL): THROTTLE BODY: REMOVAL+

10. REMOVE EGR COOLER ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

11. REMOVE NO. 1 EGR PIPE SUB-ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (EMISSION CONTROL): EGR VALVE: REMOVAL+

12. REMOVE NO. 4 WATER BY-PASS HOSE

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

13. REMOVE EGR VALVE ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

14. REMOVE NO. 3 WATER BY-PASS PIPE

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

15. REMOVE NO. 2 WATER BY-PASS PIPE

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

16. REMOVE INTAKE MANIFOLD

Click here 2021 - 2024 MY RAV4 HV [08/2020 -        ]; A25A-FXS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

17. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET

Click here 2021 - 2024 MY RAV4 HV [08/2020 -        ]; A25A-FXS (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

18. DISCONNECT FUEL TUBE SUB-ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL PUMP (for High Pressure): REMOVAL+

19. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

20. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY (for High Pressure)

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL PUMP (for High Pressure): REMOVAL+

21. REMOVE NO. 7 WATER BY-PASS HOSE

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

22. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL INJECTOR (for Port Injection): REMOVAL+

23. REMOVE NO. 1 DELIVERY PIPE SPACER

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL INJECTOR (for Port Injection): REMOVAL+

24. REMOVE INJECTOR VIBRATION INSULATOR

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL INJECTOR (for Port Injection): REMOVAL+

25. REMOVE NO. 5 ENGINE WIRE

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL INJECTOR (for Port Injection): REMOVAL+

26. REMOVE PORT FUEL INJECTOR ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL INJECTOR (for Port Injection): REMOVAL+

27. REMOVE FUEL DELIVERY PIPE

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL INJECTOR (for Direct Injection): REMOVAL+

28. REMOVE DIRECT FUEL INJECTOR ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL INJECTOR (for Direct Injection): REMOVAL+

29. REMOVE FUEL INJECTOR SEAL

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (FUEL): FUEL INJECTOR (for Direct Injection): REMOVAL+

30. REMOVE IGNITION COIL ASSEMBLY

Click here 2021 - 2024 MY RAV4 HV [08/2020 -        ]; A25A-FXS (ENGINE CONTROL): IGNITION COIL AND SPARK PLUG: INSTALLATION+

31. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL+

32. REMOVE OIL PRESSURE CONTROL VALVE ASSEMBLY

Click here 2019 - 2024 MY RAV4 HV [11/2018 -        ]; A25A-FXS (LUBRICATION): OIL PRESSURE SWITCHING VALVE: REMOVAL+

33. REMOVE CAMSHAFT POSITION SENSOR (for Intake Side)

Click here 2019 - 2024 MY RAV4 HV [11/2018 -        ]; A25A-FXS (ENGINE CONTROL): CAMSHAFT POSITION SENSOR: REMOVAL+

34. REMOVE CAMSHAFT POSITION SENSOR (for Exhaust Side)

Click here 2019 - 2024 MY RAV4 HV [11/2018 -        ]; A25A-FXS (ENGINE CONTROL): CAMSHAFT POSITION SENSOR: REMOVAL+

35. REMOVE CAM TIMING OIL CONTROL SOLENOID ASSEMBLY

Click here 2019 - 2024 MY RAV4 HV [11/2018 -        ]; A25A-FXS (ENGINE CONTROL): CAMSHAFT OIL CONTROL SOLENOID: REMOVAL+

36. REMOVE CAM TIMING CONTROL MOTOR WITH EDU ASSEMBLY

Click here 2021 MY RAV4 HV [08/2020 - 12/2021]; A25A-FXS (ENGINE CONTROL): CAMSHAFT TIMING CONTROL MOTOR: REMOVAL+

37. DISCONNECT NO. 1 WATER BY-PASS HOSE

(a) Slide the clip and disconnect the No. 1 water by-pass hose from the cylinder block sub-assembly.

38. DISCONNECT NO. 2 WATER BY-PASS HOSE

(a) Slide the clip and disconnect the No. 2 water by-pass hose from the No. 1 water by-pass pipe sub-assembly.

39. REMOVE CRANKSHAFT PULLEY ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

40. REMOVE WATER OUTLET

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

41. REMOVE OUTLET WATER BY-PASS SUB-ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

42. REMOVE CYLINDER HEAD COVER SUB-ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

43. REMOVE SPARK PLUG TUBE GASKET

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

44. REMOVE ENGINE MOUNTING BRACKET RH

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

45. REMOVE NO. 2 TIMING CHAIN COVER ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

46. REMOVE TIMING CHAIN COVER OIL SEAL

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

47. SET NO. 1 CYLINDER TO TDC (COMPRESSION)

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

48. REMOVE OIL PUMP DRIVE CHAIN SUB-ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

49. REMOVE CAMSHAFT TIMING GEAR ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

50. REMOVE CHAIN SUB-ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

51. REMOVE NO. 1 CHAIN TENSIONER ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

52. REMOVE CHAIN TENSIONER SLIPPER

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

53. REMOVE NO. 1 CHAIN VIBRATION DAMPER

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

54. REMOVE CAMSHAFT TIMING EXHAUST GEAR ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

55. REMOVE TIMING CHAIN COVER ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

56. REMOVE FUEL PUMP LIFTER GUIDE

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

57. REMOVE CAMSHAFT HOUSING SUB-ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

58. REMOVE CAMSHAFT BEARING CAP

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

59. REMOVE CAMSHAFT

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

60. REMOVE NO. 2 CAMSHAFT

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

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

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

62. REMOVE VALVE LASH ADJUSTER ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

63. REMOVE VALVE STEM CAP

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

64. REMOVE CYLINDER HEAD SUB-ASSEMBLY

Click here 2020 - 2024 MY RAV4 HV [06/2020 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: DISASSEMBLY+

65. REMOVE CYLINDER HEAD GASKET

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

66. INSPECT CYLINDER HEAD SET BOLT

Click here 2019 - 2024 MY RAV4 HV [11/2018 -        ]; A25A-FXS (ENGINE MECHANICAL): ENGINE UNIT: INSPECTION+

67. INSPECT CYLINDER HEAD SUB-ASSEMBLY

Click here 2019 - 2024 MY RAV4 HV [11/2018 -        ]; A25A-FXS (ENGINE MECHANICAL): CYLINDER HEAD: INSPECTION+