2ZR-FXE (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL; 2023 - 2025 MY Corolla Corolla HV [11/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM1000000028RAG
Model Year Start: 2023	Model: Corolla	Prod Date Range: [11/2022 - ]
Title: 2ZR-FXE (ENGINE MECHANICAL): ENGINE ASSEMBLY: REMOVAL; 2023 - 2025 MY Corolla Corolla HV [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 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
Replacement of inverter with converter assembly	ECU configuration	-
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
Replacement of ECM	Vehicle Identification Number (VIN) registration	MIL comes on
	ECU configuration	-
	Update ECU security key	Vehicle Control History (RoB) are stored
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.
Front wheel alignment adjustment	Perform "Reset Memory" Perform "Calibration"	DTCs are stored ABS warning light illuminates Brake system warning light (yellow indicator) illuminates Slip indicator light illuminates Electronically controlled brake system disabled or malfunctions

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.

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 Procedure not Performed	Necessary Procedure	Link
Front Camera System	Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal.

Click here

2. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM

for HFO-1234yf(R1234yf):
Click here
for HFC-134a(R134a):
Click here

3. DISCHARGE FUEL SYSTEM PRESSURE

Click here

4. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

5. SECURE STEERING WHEEL

Click here

6. REMOVE FRONT WHEELS

Click here

7. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

(a) Remove the 4 bolts.

*A	Type A
*B	Type B

(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

11. DRAIN ENGINE COOLANT (for Engine)

Click here

12. DRAIN HYBRID TRANSAXLE FLUID

Click here

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

15. REMOVE INLET NO. 2 AIR CLEANER

Click here

16. REMOVE THROTTLE BODY ASSEMBLY

Click here

17. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

Click here

18. REMOVE AIR CLEANER CASE SUB-ASSEMBLY

Click here

19. REMOVE AIR CLEANER SUPPORT BRACKET ASSEMBLY

Click here

20. REMOVE INLET NO. 1 AIR CLEANER

Click here

21. REMOVE INVERTER WITH CONVERTER ASSEMBLY

Click here

22. DISCONNECT FLOOR SHIFT TRANSMISSION CONTROL SELECT CABLE

(a) While disengaging the clip as shown in the illustration, disconnect the floor shift transmission control select cable from the transmission control shaft lever together with the clip.

*a	Clip
*b	45° to 60°

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

(d) Remove the bolt and disconnect the floor shift transmission control select cable from the engine assembly.

23. DISCONNECT NO. 3 RADIATOR HOSE (for Type A)

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

24. DISCONNECT NO. 1 RADIATOR HOSE (for Type B)

(a) Slide the clip and disconnect the No. 1 radiator hose from the water outlet.

25. DISCONNECT NO. 2 RADIATOR HOSE

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

26. DISCONNECT INLET HEATER WATER HOSE

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

27. DISCONNECT OUTLET HEATER WATER HOSE

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

28. DISCONNECT FUEL VAPOR FEED HOSE

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

29. DISCONNECT FUEL TUBE SUB-ASSEMBLY

Click here

30. DISCONNECT NO. 2 INVERTER COOLING OUTLET HOSE

(a) Slide the clip and disconnect the No. 2 inverter cooling outlet hose from the motor cooling cooler.

31. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY

Click here

32. DISCONNECT SUCTION HOSE SUB-ASSEMBLY

Click here

33. DISCONNECT NO. 7 ENGINE WIRE

(a) Remove the bolt.

(b) Disengage the 2 clamps and disconnect the No. 7 engine wire from the hybrid vehicle transaxle assembly.

34. REMOVE COLUMN HOLE COVER SILENCER SHEET

Click here

35. SEPARATE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY

Click here

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

Click here

37. REMOVE FRONT FLOOR COVER LH

Click here

38. REMOVE FRONT FLOOR COVER RH

HINT:

Use the same procedure as for the LH side.

39. REMOVE FRONT FLOOR CENTER BRACE

Click here

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

Click here

41. REMOVE FRONT DRIVE SHAFT ASSEMBLY

Click here

42. REMOVE REAR SIDE RAIL REINFORCEMENT SUB-ASSEMBLY LH

Click here

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.

(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) Disengage the 2 clamps.

(b) 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.

49. REMOVE COMPRESSOR WITH MOTOR ASSEMBLY

Click here

50. REMOVE STARTER HOLE INSULATOR

Click here

51. REMOVE FLYWHEEL HOUSING SIDE COVER

Click here

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

54. REMOVE TRANSMISSION INPUT DAMPER ASSEMBLY

Click here

55. REMOVE FLYWHEEL SUB-ASSEMBLY

Click here

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.