M20A-FKS (LUBRICATION): OIL PUMP: REMOVAL; 2023 - 2025 MY Corolla Corolla Hatchback [03/2023

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000002BA1K
Model Year Start: 2023	Model: Corolla Hatchback	Prod Date Range: [03/2023 - ]
Title: M20A-FKS (LUBRICATION): OIL PUMP: REMOVAL; 2023 - 2025 MY Corolla Corolla Hatchback [03/2023 - ]

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 oil pump 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/ Steering Lock Function 2: w/o Smart Key System 3: w/ Smart Key System 4: If matchmarks were not placed when removing parts related to steering operation, perform end position initial setting. 5: If transaxle compensation code read from ECM 6: If transaxle compensation code not read from ECM
Replacement of ECM	Vehicle Identification Number (VIN) registration	MIL comes on
	for K121 ECU configuration	-
	Update ECU security key	Vehicle Control History (RoB) are stored
	ECU communication ID registration (Immobiliser system)	Engine start function
Replacement of ECM*3	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*1
Replacement of ECM*2	Code registration (Immobiliser system)	Engine start Telematics System
Replacement of engine assembly 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 engine coolant temperature sensor 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.
Replacement of continuously variable transaxle assembly	for K120 Input transaxle compensation code into TCM Perform reset memory CVT oil pressure calibration Perform road test to allow TCM to learn	Large shift shock Deterioration of fuel efficiency	Initialization: Registration:
Replacement of continuously variable transaxle assembly	for K121 Input transaxle compensation code into ECM Perform reset memory CVT oil pressure calibration Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	Initialization: Registration:
Replacement of ECM	for K120 Perform reset memory CVT oil pressure calibration Perform road test to allow TCM to learn	Large shift shock Deterioration of fuel efficiency	Initialization: Registration:
Replacement of ECM	for K121 Transfer transaxle compensation code5 Reset transaxle compensation code6 CVT oil pressure calibration Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	Initialization: Registration:
Front wheel alignment adjustment	Perform "Reset Memory" Perform "Calibration"	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 K120: for K121:
Steering gear assembly4 No. 2 steering intermediate shaft assembly4	for TMC Made End position initial setting	-

NOTICE:

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

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
Front Camera System	Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.

Learning completes when vehicle is operated normally

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
*1: for Hatchback
Power Door Lock Control System	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.

PROCEDURE

1. REMOVE TIMING CHAIN COVER ASSEMBLY

Click here

2. REMOVE OIL PAN SUB-ASSEMBLY

Click here

3. REMOVE OIL STRAINER SUB-ASSEMBLY

Click here

4. REMOVE OIL PUMP ASSEMBLY

(a) Remove the 3 bolts and oil pump assembly from the stiffening crankcase assembly.

REMOVAL

CAUTION / NOTICE / HINT

Necessary Procedures After Parts Removed/Installed/Replaced

for K121

for K120

for K121

for K120

for K121

for TMC Made

Learning completes when vehicle is driven

Learning completes when vehicle is operated normally

PROCEDURE