K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY: REMOVAL; 2023 MY Corolla Corolla Hatchback [09/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000002718J
Model Year Start: 2023	Model: Corolla Hatchback	Prod Date Range: [09/2022 - 11/2022]
Title: K313 (CVT): CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY: REMOVAL; 2023 MY Corolla Corolla Hatchback [09/2022 - 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 continuously variable transaxle assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced

Replacement Part or Procedure	Necessary Procedure	Effect/Inoperative when not Performed	Link
1: w/ Smart Key System 2: w/o Smart Key System *3: w/ Steering Lock Function
Replacement of ECM	Vehicle Identification Number (VIN) registration	MIL comes on
Replacement of ECM	ECU communication ID registration (Immobiliser system)	Engine start function
Replacement of continuously variable transaxle assembly Replacement of ECM	Reset memory Deceleration sensor zero point calibration CVT oil pressure calibration	Large shift shock Deterioration of fuel efficiency
Replacement of ECM*1	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*3
Replacement of ECM*2	Code registration (Immobiliser system)	Engine start
Gas leak from exhaust system is repaired	Inspection after repair	Poor idle, etc. Engine start function, etc.
Replacement of CVT fluid	ATF thermal degradation estimate reset	The value of the Data List item "ATF thermal Degradation Estimate" is not estimated correctly
Front wheel alignment adjustment	for TMMMS Made Perform "Reset Memory" Perform acceleration sensor zero point calibration and store system information memorization	VSC is disabled or malfunctions DTCs are output Slip indicator light illuminates ABS warning light illuminates	w/ Electric Parking Brake System w/o Electric Parking Brake System

CAUTION:

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

Because the continuously variable transaxle assembly is extremely heavy, make sure to follow the work procedures described in the repair manual.

*a	Heavy object exceeding the capacity of the transmission jack

If work is not performed according to the procedures described in the repair manual, there is a danger that the transmission jack could drop and components could fall down.

HINT:

When the cable is disconnected / reconnected to the 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
Pre-collision System (for TMMMS Made)	Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.
Lane Tracing Assist System (for TMMMS Made)
Lane Departure Alert System (for TMMMS Made)

PROCEDURE

1. PRECAUTION

NOTICE:

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

Click here

2. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

Click here

4. DRAIN ENGINE COOLANT

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5. REMOVE FRONT DRIVE SHAFT ASSEMBLY

Click here

6. REMOVE WINDSHIELD WIPER MOTOR AND LINK ASSEMBLY

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7. REMOVE NO. 1 HEATER AIR DUCT SPLASH SHIELD SEAL

Click here

8. REMOVE OUTER COWL TOP PANEL SUB-ASSEMBLY

(a) Remove the 9 bolts, 4 nuts and outer cowl top panel sub-assembly.

(b) Install the 4 nuts.

Torque:

50 N·m {510 kgf·cm, 37 ft·lbf}

9. REMOVE RADIATOR SUPPORT OPENING COVER

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10. REMOVE INLET NO. 1 AIR CLEANER

Click here

11. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

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12. REMOVE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

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13. REMOVE AIR CLEANER CASE SUB-ASSEMBLY

Click here

14. REMOVE ECM

Click here

15. REMOVE BATTERY

Click here

16. DISCONNECT ENGINE WIRE

Click here

17. REMOVE BATTERY CLAMP SUB-ASSEMBLY

Click here

18. DISCONNECT FLOOR SHIFT TRANSMISSION CONTROL SELECT CABLE

Click here

19. DISCONNECT NO. 1 BREATHER PLUG (CVT)

(a) Disconnect the No. 1 breather plug (CVT) from the clamp.

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

Click here

21. DISCONNECT ENGINE WIRE

(a) Disconnect the transmission wire connector.

*a	Park/Neutral Position Switch Connector	*b	Transmission Wire Connector
*c	Transmission Revolution Sensor (NIN) Connector	*d	Transmission Revolution Sensor (NOUT) Connector
*e	Oil Pressure Sensor Connector	-	-

(b) Disconnect the transmission revolution sensor (NIN) connector.

(d) Disconnect the transmission revolution sensor (NOUT) connector.

(e) Disconnect the oil pressure sensor connector.

(f) Disengage the 5 clamps.

(g) Remove the bolt to disconnect the engine wire from the continuously variable transaxle assembly.

(h) Remove the bolt to disconnect the engine wire from the No. 1 transmission control cable bracket .

(i) Disengage the 3 clamps to disconnect the engine wire from the front suspension crossmember sub-assembly.

22. DISCONNECT WATER BY-PASS HOSE

(a) Slide the 2 clips and disconnect the water by-pass hose from the transmission oil cooler.

*1	Water By-pass Hose

(b) Disengage the clamp to separate the water by-pass hose from the continuously variable transaxle assembly.

23. REMOVE STARTER ASSEMBLY

Click here

24. REMOVE NO. 1 TRANSMISSION CONTROL CABLE BRACKET

(a) Remove the 2 bolts and No. 1 transmission control cable bracket from the continuously variable transaxle assembly.

25. REMOVE WIRE HARNESS CLAMP BRACKET

Click here

26. INSTALL ENGINE HANGERS

Click here

27. DISCONNECT NO. 3 RADIATOR HOSE

Click here

28. INSTALL ENGINE SUPPORT BRIDGE

(a) Remove the clip and disconnect the inlet hose from the vehicle body.

(b) Install SST to the vehicle body as shown in the illustration.

*a	Support Shaft	*b	Front Side Member
*c	Nut	*d	Cloth

SST: 09940-10020

CAUTION:

Make sure that no oil or grease is on the front side member, and set the support shaft on the level surface of the front side member.

*a	Support Shaft
*b	Front Side Member

The engine support bridge may fall off if any oil or grease is still on or it is installed on the unlevel surface.

NOTICE:

Prevent SST from contacting the vehicle body exterior and windshield glass.
To prevent damage to the engine hood, place pieces of cloth between the engine hood and SST.
Lightly shake SST by hand to make sure it is securely installed before performing work.

*a	Support Shaft
*b	Sub Beam
*c	Front Side Member
*d	Threaded Portion

(d) Install the chain block assembly to the sling bracket.

*a	Chain Block Assembly	*b	Sling Bracket
*c	Fuse Shackle	-	-

(e) Install the division bar to the chain block assembly with the shackle (A).

CAUTION:

Make sure the fuse shackle is on the chain block assembly side and the shackle (A) is on the division bar side as shown in the illustration so that the fuse bolt is visible and can be checked for deformation easily.

*a	Fuse Shackle
*b	Shackle (A)

If the fuse shackle is installed upside down, deformation of the fuse bolt will not be visible and cannot be used to tell if the load capacity of the engine support bridge has been exceeded. If the load capacity is exceeded, it may cause the engine support bridge to damage the vehicle and the engine assembly with transaxle assembly may fall.

Make sure that the fuse bolt of the fuse shackle is free of damage, such as deformation or cracks. If damaged, replace the fuse shackle.

*a	Fuse Shackle
*b	Fuse Bolt

If a deformed fuse bolt is used, it cannot be used to tell if the load capacity of the engine support bridge has been exceeded. If the load capacity is exceeded, it may cause the engine support bridge to damage the vehicle and the engine assembly with transaxle assembly may fall.

(f) Connect the division bar to the No. 1 engine hanger with the shackle (B).

*1	No. 1 Engine Hanger	*2	No. 2 Engine Hanger
*a	Division Bar	*b	Shackle (B)
*c	Chain	*d	Shackle (A)

(g) Connect the division bar to the No. 2 engine hanger with the shackle (A) and chain.

NOTICE:

Connect the 1st link of the chain to the No. 2 engine hanger.

(h) Make sure the distance between the chain block assembly and suspension ring is 120 mm (4.72 in.) or more.

HINT:

If the suspension height is less than 120 mm, adjust the links of the chain which connect the division bar and engine hanger.

*a	120 mm (4.72 in.) or more

(i) Adjust the positions of the chain block assembly, support brackets and main beam so that the chain of the chain block assembly is perpendicular to the main beam and the length of the main beam on the outer side of the support bracket LH and RH is the same as shown in the illustration.

*a	Chain Block Assembly	*b	Main Beam
*c	Dimension (A)	*d	Dimension (B)
*e	Right to Left Adjustment	*f	Front to Rear Adjustment

CAUTION:

To prevent the engine assembly with transaxle assembly from falling, make sure that the length of dimension (A) and dimension (B) are equal.

*a	Main Beam
*b	Sub Beam
*c	Dimension (A)
*d	Dimension (B)

Do not perform any procedures if the length of dimension (A) and dimension (B) are not equal.
Performing any procedure when the length of dimension (A) and dimension (B) are not equal may cause the engine assembly with transaxle assembly and engine support bridge to fall, possibly causing serious injury.

Do not perform any procedures if the chain of the chain block assembly is not straight.
When removing the engine mount, if the chain of the chain block assembly is not straight, the engine assembly or transaxle assembly may contact the vehicle body.

(j) Confirm the appropriate installation state of the engine support bridge and tighten the 6 wing bolts and 2 bolts.

Wing Bolt

Bolt

Torque:

Bolt :

30 N·m {306 kgf·cm, 22 ft·lbf}

CAUTION:

Do not perform any procedures before tightening the bolts to the specified torque.
Performing procedures without tightening the bolts to the specified torque, may cause the engine support bridge to fall.

(k) Tighten the chain block assembly until it cannot be moved any further by hand.

Turn

*a	41 Nm (418 kgfcm, 30 ft.*lbf) or more

When suspending the engine assembly with transaxle assembly, do not tighten the chain block assembly more than 41 N*m (418 kgf*cm, 30 ft.*lbf).
Tightening the chain block assembly more than 41 N*m (418 kgf*cm, 30 ft.*lbf) will cause the load capacity (400 kg (881.8 lb)) to be exceeded and may cause damage to the engine support bridge and vehicle body.

29. SECURE STEERING WHEEL

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30. REMOVE COLUMN HOLE COVER SILENCER SHEET

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31. SEPARATE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY

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

Click here

33. REMOVE FLYWHEEL HOUSING UNDER COVER

Click here

34. REMOVE DRIVE PLATE AND TORQUE CONVERTER ASSEMBLY SETTING BOLT

(a) Turn the crankshaft to gain access to the 6 drive plate and torque converter assembly setting bolts and remove each drive plate and torque converter assembly setting bolt while holding the crankshaft pulley bolt with a wrench.

HINT:

There will be one black colored drive plate and torque converter assembly setting bolt.

35. REMOVE REAR SIDE RAIL REINFORCEMENT SUB-ASSEMBLY LH

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36. REMOVE REAR SIDE RAIL REINFORCEMENT SUB-ASSEMBLY RH

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37. REMOVE FRONT SUSPENSION CROSSMEMBER SUB-ASSEMBLY

(a) Remove the bolt and separate the No. 2 engine moving control rod.

(b) Support the front suspension crossmember sub-assembly with an engine lifter using 4 attachments or equivalent tools as shown in the illustration.

*a	Engine Lifter
*b	Attachment
	Attachment placement location

CAUTION:

The front suspension crossmember sub-assembly is a very heavy component. Make sure that it is supported securely.
If the front suspension crossmember sub-assembly is not securely supported, it may drop, resulting in serious injury.

NOTICE:

Use attachments to keep the front suspension crossmember sub-assembly level.

(d) Slowly lower the front suspension crossmember sub-assembly.

NOTICE:

When lowering the front suspension crossmember sub-assembly, be careful not to damage the vehicle body or other components installed to the vehicle.

38. REMOVE NO. 2 ENGINE MOVING CONTROL ROD

(a) Remove the 4 bolts and No. 2 engine moving control rod from the continuously variable transaxle assembly.

39. SUPPORT CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

(a) Using a transmission jack, support the continuously variable transaxle assembly.

NOTICE:

Adjust the attachment of the transmission jack to securely fix the continuously variable transaxle assembly to the transmission jack.
To prevent the transaxle oil (CVT) pan sub-assembly from deforming, do not place any attachments under the transaxle oil (CVT) pan sub-assembly of the continuously variable transaxle assembly.
Using a lashing belt or a rope, fix the continuously variable transaxle assembly to the transmission jack.

*a	Lashing Belt

40. REMOVE ENGINE MOUNTING INSULATOR LH

(a) Remove the bolt and nut and separate the engine mounting insulator LH from the engine mounting bracket LH.

NOTICE:

While holding the nut in place, loosen the bolt.

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

41. REMOVE ENGINE MOUNTING STAY LH

(a) Remove the 2 bolts and engine mounting stay LH from the continuously variable transaxle assembly and engine mounting bracket LH.

42. REMOVE ENGINE MOUNTING BRACKET LH

(a) Remove the 3 bolts and engine mounting bracket LH from the continuously variable transaxle assembly.

43. REMOVE CONTINUOUSLY VARIABLE TRANSAXLE ASSEMBLY

(a) Remove the 7 bolts and continuously variable transaxle assembly from the engine assembly.

NOTICE:

To prevent damage to the 2 knock pins, do not pry between the continuously variable transaxle assembly and engine assembly.

HINT:

Bolt (A): Remove from the continuously variable transaxle assembly side.
Bolt (B): Remove from the engine assembly side.

44. REMOVE TORQUE CONVERTER ASSEMBLY

(a) Remove the torque converter assembly from the continuously variable transaxle assembly.

NOTICE:

Remove the torque converter assembly from the input shaft horizontally.

45. REMOVE NO. 1 WATER HOSE CLAMP BRACKET

(a) Remove the clamp from the No. 1 water hose clamp bracket.

(b) Remove the hose clamp from the No. 1 water hose clamp bracket.

46. REMOVE WIRE HARNESS CLAMP BRACKET

(a) Remove the 3 bolts and 3 wire harness clamp brackets from the continuously variable transaxle assembly.

47. REMOVE STRAIGHT SCREW PLUG

HINT:

Perform this procedure only when replacement of the straight screw plug is necessary.

(a) Remove the straight screw plug and gasket from the continuously variable transaxle assembly.

48. REMOVE CVT OIL PUMP TYPE T OIL SEAL

NOTICE:

Do not remove the front oil pump assembly from the CVT main body, as there is a possibility of the entry of dust and foreign matter.
Clean the work area, the tools to be used, and other equipment, etc. thoroughly before the operation, as there is the possibility that a CVT malfunction, which could prevent the vehicle from being able to be driven, could occur if dust or fine foreign matter enters the CVT.
Do not use cotton work gloves, cloths, or paper towels, etc. that may produce lint, dust or foreign matter.
Perform the operation as quickly as possible, as dust and foreign matter could enter the CVT while the torque converter assembly is removed.
Do not use an air gun until the torque converter assembly has been installed, as it could cause dust and foreign matter to be stirred up.

(a) Clean the tips of both the claws of SST and the center bolt.

SST: 09308-10010

(b) Using SST, remove the CVT oil pump type T oil seal.

NOTICE:

Pay attention to the angle of the claws when opening them, and ensure that they do not come into contact with the oil pump housing, as there is the possibility that metal particles could be produced if they do.

49. INSPECT TORQUE CONVERTER ASSEMBLY

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50. INSPECT DRIVE PLATE AND RING GEAR SUB-ASSEMBLY

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REMOVAL

CAUTION / NOTICE / HINT

Necessary Procedure After Parts Removed/Installed/Replaced

for TMMMS Made

Learning completes when vehicle is driven

PROCEDURE