Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001N6AZ
Model Year Start: 2021 Model: Corolla Prod Date Range: [04/2020 - 09/2022]
Title: 2ZR-FXE (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]

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 engine 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

Disconnect cable from negative auxiliary battery terminal

Perform steering sensor zero point calibration

Lane Control System

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; PRE-COLLISION: PRE-COLLISION SYSTEM (for HV Model): INITIALIZATION

Pre-collision System

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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): UTILITY for 2ZR-FXE (for Nickel Metal Hydride Battery)

2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY with P610): UTILITY for 2ZR-FXE (for Lithium-ion Battery)

Replacement of hybrid vehicle transaxle assembly

  • Resolver learning
  • Initialize resolver

Replacement of ECM

Vehicle Identification Number (VIN) registration

MIL comes on

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

  • Replacement of throttle body assembly
  • Replacement of engine assembly
  • Gas leak from exhaust system is repaired

Inspection After Repair

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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): CALIBRATION

CAUTION:

  • The engine assembly with transaxle is very heavy. Be sure to follow the procedure described in the repair manual, or the engine lifter may suddenly drop or the engine assembly with transaxle may fall off the engine lifter.

    *a

    An Object Exceeding Weight Limit of Engine Lifter

  • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

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, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for HV Model))

PROCEDURE

1. PRECAUTION

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

2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

  • for HFO-1234yf(R1234yf):

    Click here 2020 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 06/2020]; HEATING / AIR CONDITIONING: REFRIGERANT (for HFO-1234yf(R1234yf)): REPLACEMENT+ 2021 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2020 -        ]; HEATING / AIR CONDITIONING: REFRIGERANT (for HFO-1234yf(R1234yf)): REPLACEMENT+

  • for HFC-134a(R134a):

    Click here 2020 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 -        ]; HEATING / AIR CONDITIONING: REFRIGERANT (for HFC-134a(R134a)): REPLACEMENT+

3. DISCHARGE FUEL SYSTEM PRESSURE

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; 2ZR-FXE (FUEL): FUEL SYSTEM: PRECAUTION

4. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

5. SECURE STEERING WHEEL

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL+

6. REMOVE FRONT WHEELS

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; MAINTENANCE: TIRE AND WHEEL: REMOVAL

7. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

(a) Remove the 4 bolts.

(b) Remove the 10 clips and No. 1 engine under cover assembly from the vehicle.

8. REMOVE REAR ENGINE UNDER COVER LH

(a) Type A:

(1) Remove the screw.

(2) Remove the 4 clips and rear engine under cover LH from the vehicle.

(b) Type B:

(1) Remove the screw.

(2) Remove the 5 clips and rear engine under cover LH from the vehicle.

9. REMOVE REAR ENGINE UNDER COVER RH

(a) Type A:

(1) Remove the screw.

(2) Remove the 4 clips and rear engine under cover RH from the vehicle.

(b) Type B:

(1) Remove the screw.

(2) Remove the 5 clips and rear engine under cover RH from the vehicle.

10. DRAIN ENGINE OIL

Click here 2020 - 2021 MY Corolla Corolla HV [01/2019 - 06/2021]; MAINTENANCE: 2ZR-FXE OIL AND OIL FILTER: REPLACEMENT+ 2022 MY Corolla Corolla HV [06/2021 - 09/2022]; MAINTENANCE: 2ZR-FXE OIL AND OIL FILTER: REPLACEMENT+

11. DRAIN ENGINE COOLANT (for Engine)

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; MAINTENANCE: 2ZR-FXE COOLANT (for Engine Coolant): REPLACEMENT+

12. DRAIN HYBRID TRANSAXLE FLUID

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; P610 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID TRANSAXLE FLUID: ADJUSTMENT+

13. DISCONNECT NO. 8 WATER BY-PASS HOSE

(a) Slide the clip and disconnect the No. 8 water by-pass hose from the No. 4 water by-pass hose.

14. REMOVE RADIATOR SUPPORT OPENING COVER

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; EXTERIOR PANELS / TRIM: FRONT BUMPER (for Sedan without Illumination): REMOVAL+

15. REMOVE INLET NO. 2 AIR CLEANER

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

16. REMOVE THROTTLE BODY ASSEMBLY

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): THROTTLE BODY: REMOVAL

17. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

18. REMOVE AIR CLEANER CASE SUB-ASSEMBLY

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

19. REMOVE AIR CLEANER BRACKET

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

20. REMOVE INLET NO. 1 AIR CLEANER

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE MANIFOLD: REMOVAL+

21. REMOVE INVERTER WITH CONVERTER ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER: REMOVAL

22. DISCONNECT FLOOR SHIFT TRANSMISSION CONTROL SELECT CABLE

(a) Remove the nut and disconnect the floor shift transmission control select cable from the control shaft lever.

(b) Remove the clip and disconnect the floor shift transmission control select cable from the No. 1 transmission control cable bracket.

(c) Remove the bolt to disconnect the floor shift transmission control select cable from the cylinder head cover sub-assembly.

23. DISCONNECT NO. 3 RADIATOR HOSE

(a) Remove the 2 bolts from the hybrid vehicle transaxle assembly.

(b) Slide the clip and disconnect the No. 3 radiator hose from the water outlet.

24. DISCONNECT NO. 2 RADIATOR HOSE

(a) Slide the clip and disconnect the No. 2 radiator hose from the water inlet sub-assembly.

25. DISCONNECT INLET HEATER WATER HOSE

(a) Slide the clip and disconnect the inlet heater water hose.

26. DISCONNECT OUTLET HEATER WATER HOSE

(a) Slide the clip and disconnect the outlet heater water hose.

27. DISCONNECT FUEL VAPOR FEED HOSE

(a) Slide the clip and disconnect the fuel vapor feed hose from the fuel vapor feed pipe.

28. DISCONNECT FUEL TUBE SUB-ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; 2ZR-FXE (FUEL): FUEL INJECTOR: REMOVAL+

29. DISCONNECT INLET HYBRID RADIATOR HOSE

(a) Slide the clip and disconnect the inlet hybrid radiator hose from the motor cooling cooler.

NOTICE:

  • Do not pull the inlet hybrid radiator hose with excessive force to deform the motor cooling cooler pipe.
  • If the motor cooling cooler pipe is deformed replace it because using a deformed pipe can cause coolant leakage.

30. DISCONNECT OUTLET NO. 1 HYBRID WATER PUMP HOSE

(a) Slide the clip and disconnect the outlet No. 1 hybrid water pump hose from the motor cooling cooler.

NOTICE:

  • Do not pull the outlet No. 1 hybrid water pump hose with excessive force to deform the motor cooling cooler pipe.
  • If the motor cooling cooler pipe is deformed replace it because using a deformed pipe can cause coolant leakage.

31. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HEATING / AIR CONDITIONING: COMPRESSOR (for 2ZR-FXE): REMOVAL+

32. DISCONNECT SUCTION HOSE SUB-ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HEATING / AIR CONDITIONING: COMPRESSOR (for 2ZR-FXE): REMOVAL+

33. DISCONNECT NO. 3 ENGINE WIRE

(a) Remove the 3 bolts.

(b) Disengage the clamp and disconnect the No. 3 engine wire from the hybrid vehicle transaxle assembly.

34. REMOVE COLUMN HOLE COVER SILENCER SHEET

Click here 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; STEERING COLUMN: STEERING COLUMN ASSEMBLY: REMOVAL+

35. SEPARATE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; STEERING COLUMN: STEERING COLUMN ASSEMBLY: REMOVAL+

36. SEPARATE NO. 1 STEERING COLUMN HOLE COVER SUB-ASSEMBLY

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; STEERING GEAR / LINKAGE: STEERING GEAR: REMOVAL+

37. REMOVE FRONT FLOOR COVER LH

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

38. REMOVE FRONT FLOOR COVER RH

HINT:

Use the same procedure as for the LH side.

39. REMOVE FRONT FLOOR CENTER BRACE

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

40. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst)

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): EXHAUST MANIFOLD: REMOVAL+

41. REMOVE FRONT DRIVE SHAFT ASSEMBLY

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; DRIVE SHAFT / PROPELLER SHAFT: FRONT DRIVE SHAFT ASSEMBLY (for 2ZR-FXE): REMOVAL

42. REMOVE REAR SIDE RAIL REINFORCEMENT SUB-ASSEMBLY LH

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [01/2019 - 09/2022]; FRONT SUSPENSION: FRONT SUSPENSION MEMBER: REMOVAL+

43. REMOVE REAR SIDE RAIL REINFORCEMENT SUB-ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.

44. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE

(a) Set the engine assembly with transaxle on an engine lifter.

NOTICE:

  • Using height adjustment attachments and plate lift attachments, keep the engine assembly with transaxle and front suspension crossmember sub-assembly level.
  • Do not perform any procedures while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.
  • To prevent the engine assembly from unexpectedly moving, securely support the engine assembly until it is secured to an engine stand.
  • To prevent the oil pan sub-assembly from deforming, do not place any attachments under the oil pan sub-assembly of the engine assembly with transaxle.

(b) Remove the 2 bolts and nut and separate the engine mounting insulator sub-assembly RH from the engine mounting bracket RH.

(c) Remove the 3 bolts and nut and separate the engine mounting insulator LH from the hybrid vehicle transaxle assembly.

(d) Remove the bolt and No. 2 engine mounting stay LH.

(e) Remove the 4 bolts to separate the front suspension crossmember sub-assembly from the vehicle.

(f) Operate the engine lifter and remove the engine assembly with transaxle from the vehicle.

NOTICE:

  • Make sure that the engine assembly with transaxle is clear of all wiring and hoses.
  • While lowering the engine assembly with transaxle from the vehicle, do not allow it to contact the vehicle.

45. REMOVE WIRE HARNESS CLAMP BRACKET

(a) Disengage the 3 clamps.

(b) Remove the bolt and wire harness clamp bracket from the cylinder head sub-assembly.

46. INSTALL ENGINE HANGERS

(a) Install the No. 1 engine hanger and No. 2 engine hanger with the 2 bolts.

Torque:

43 N·m {438 kgf·cm, 32 ft·lbf}

No. 1 Engine Hanger

12281-37070

No. 2 Engine Hanger

12282-37060

Bolt

91552-81050

*1

No. 1 Engine Hanger

*2

No. 2 Engine Hanger

*a

Bolt

(b) Using an engine sling device and engine lifter, secure the engine assembly with transaxle.

NOTICE:

  • Adjust the angle of the sling device carefully to prevent damage or deformation to the engine hangers or engine assembly.
  • Do not perform any procedures while the engine assembly is suspended because doing so may cause the engine assembly to drop, resulting in injury. However, the engine assembly needs to be suspended when it is installed to or removed from an engine stand.

47. REMOVE ENGINE MOUNTING INSULATOR LH

HINT:

Perform this procedure only when replacement of the engine mounting insulator LH is necessary.

(a) Remove the 4 bolts, nut and engine mounting insulator LH from the vehicle.

48. REMOVE ENGINE MOUNTING INSULATOR SUB-ASSEMBLY RH

HINT:

Perform this procedure only when replacement of the engine mounting insulator sub-assembly RH is necessary.

(a) Remove the 2 bolts and No. 2 earth wire from the engine mounting insulator sub-assembly RH and vehicle.

(b) Remove the bolt, nut and disconnect the air conditioner tube and accessory assembly.

(c) Remove the 2 bolts, nut and engine mounting insulator sub-assembly RH from the vehicle.

49. REMOVE COMPRESSOR WITH MOTOR ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; HEATING / AIR CONDITIONING: COMPRESSOR (for 2ZR-FXE): REMOVAL+

50. REMOVE STARTER HOLE INSULATOR

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; P610 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL+

51. REMOVE FLYWHEEL HOUSING SIDE COVER

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; P610 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL+

52. REMOVE ENGINE WIRE

(a) Disconnect all the clamps and connectors and remove the engine wire from the engine assembly with transaxle.

53. REMOVE ENGINE ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; P610 (HYBRID TRANSMISSION / TRANSAXLE): HYBRID VEHICLE TRANSAXLE: REMOVAL+

54. REMOVE TRANSMISSION INPUT DAMPER ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; 2ZR-FXE (ENGINE MECHANICAL): REAR CRANKSHAFT OIL SEAL: REMOVAL+

55. REMOVE FLYWHEEL SUB-ASSEMBLY

Click here 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; 2ZR-FXE (ENGINE MECHANICAL): REAR CRANKSHAFT OIL SEAL: REMOVAL+

56. INSTALL ENGINE ASSEMBLY TO ENGINE STAND

(a) Install the engine assembly to an engine stand.

57. REMOVE ENGINE HANGERS

(a) Remove the 2 bolts, No. 1 engine hanger and No. 2 engine hanger.