2ZR-FAE (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL; 2020 MY Corolla [01/2019

Last Modified: 01-27-2025	6.11:8.1.0	Doc ID: RM100000001G45P
Model Year Start: 2020	Model: Corolla	Prod Date Range: [01/2019 - 03/2019]
Title: 2ZR-FAE (ENGINE MECHANICAL): ENGINE UNIT: REMOVAL; 2020 MY Corolla [01/2019 - 03/2019]

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 unit removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
1: w/ Smart Key System 2: w/o Smart Key System
Battery terminal is disconnected/reconnected	Perform steering sensor zero point calibration	Lane Control System
		Pre-collision System
		Lighting System (w/ AFS)(EXT)
Replacement of ECM	Vehicle Identification Number (VIN) registration	MIL comes on
	ECU communication ID registration (Immobiliser system)	Engine start function
	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
Replacement of ECM*2	Code registration (Immobiliser system)	Engine start
Replacement of throttle body assembly Replacement of engine assembly Replacement of cylinder head sub-assembly Replacement of camshaft timing gear assembly Replacement of camshaft timing exhaust gear assembly Replacement of fuel injector assembly Replacement of spark plug Replacement of ignition coil assembly Gas leak from exhaust system is repaired Replacement of knock control sensor Replacement of engine coolant temperature sensor Replacement of continuously variable valve lift controller assembly	Inspection After Repair	Poor idle, etc. Engine start function, etc.
Suspension, tires, etc. (The vehicle height changes because of suspension or tire replacement)	Perform headlight ECU sub-assembly LH initialization	Lighting system (w/ AFS)(EXT)
Front wheel alignment adjustment	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:
CVT fluid	ATF thermal degradation estimate reset	The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly	for K313

NOTICE:

After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Audio and Visual System (for Gasoline Model))
After the engine switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System)

PROCEDURE

1. REMOVE THROTTLE BODY ASSEMBLY

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2. REMOVE INTAKE MANIFOLD

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3. REMOVE PURGE VALVE (PURGE VSV)

(a) Remove the 2 bolts and purge valve (purge VSV) from the cylinder head cover sub-assembly.

4. DISCONNECT FUEL TUBE SUB-ASSEMBLY

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5. REMOVE FUEL DELIVERY PIPE SUB-ASSEMBLY

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6. REMOVE NO. 1 DELIVERY PIPE SPACER

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7. REMOVE FUEL INJECTOR ASSEMBLY

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8. REMOVE ENGINE OIL LEVEL DIPSTICK GUIDE

(a) Remove the engine oil level dipstick.

(b) Remove the bolt and engine oil level dipstick guide.

9. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR

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10. REMOVE DRIVE SHAFT HEAT INSULATOR SUB-ASSEMBLY

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11. REMOVE MANIFOLD STAY

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12. REMOVE EXHAUST MANIFOLD

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13. REMOVE VENTILATION HOSE

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14. DISCONNECT NO. 3 WATER BY-PASS HOSE

(a) Slide the clip and disconnect the No. 3 water by-pass hose from the water inlet housing

15. REMOVE NO. 1 WATER BY-PASS PIPE

(a) Remove the 2 bolts and No. 1 water by-pass pipe.

*A	for CVT
*B	for Manual Transaxle

16. REMOVE WATER BY-PASS HOSE

(a) Slide the clip and remove the water by-pass hose from the cylinder head sub-assembly.

17. REMOVE WATER INLET HOSE

(a) Slide the 2 clips and remove the water inlet hose.

18. SEPARATE WATER INLET

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19. REMOVE THERMOSTAT

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20. REMOVE VACUUM PUMP ASSEMBLY

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21. REMOVE NO. 1 VACUUM PUMP BRACKET

(a) Remove the 2 bolts, No. 1 vacuum pump bracket and gasket.

22. REMOVE NO. 2 GENERATOR BRACKET

(a) Remove the bolt and No. 2 generator bracket from the cylinder head sub-assembly.

23. REMOVE V-RIBBED BELT TENSIONER ASSEMBLY

NOTICE:

Do not supply oil to the tensioner when an abnormal noise of the belt occurs.

(a) Remove the 2 bolts and V-ribbed belt tensioner assembly from the engine assembly.

24. REMOVE WIRE HARNESS CLAMP BRACKET

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

25. REMOVE IGNITION COIL ASSEMBLY

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26. REMOVE ENGINE OIL TEMPERATURE SENSOR

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