K120 / K121 (CVT): K121 SHIFT LEVER POSITION SENSOR: REMOVAL; 2023 - 2025 MY Corolla Corolla Hatchback [03/2023

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000002B8OY
Model Year Start: 2023	Model: Corolla Hatchback	Prod Date Range: [03/2023 - ]
Title: K120 / K121 (CVT): K121 SHIFT LEVER POSITION SENSOR: 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, installed, or replaced during shift lever position sensor 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/o Smart Key System 2: w/ Smart Key System 3: w/ Steering Lock Function 4: If transaxle compensation code read from ECM *5: 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
	for K121 Transfer transaxle compensation code4 Reset transaxle compensation code5 CVT oil pressure calibration Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	Initialization: Registration:
Replacement of ECM*2	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*1	Code registration (Immobiliser system)	Engine start Telematics System

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 Back door opener*1	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.

PROCEDURE

1. SECURE VEHICLE

(a) Fully apply the parking brake and chock a wheel.

CAUTION:

Make sure to apply the parking brake and chock a wheel before performing this procedure.
If the vehicle is not secure and the shift lever is moved to N, the vehicle may suddenly move, possibly resulting in an accident or serious injury.

2. REMOVE BATTERY

Click here

3. REMOVE ECM

Click here

4. REMOVE BATTERY CLAMP SUB-ASSEMBLY

Click here

5. 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.

6. REMOVE SHIFT LEVER POSITION SENSOR

(a) Disconnect the shift lever position sensor connector.

(b) Using a piece of wood or equivalent to secure the transmission control shaft lever to prevent it from rotating, remove the nut, washer and transmission control shaft lever from the manual valve lever shaft.

*a	Piece of Wood or Equivalent

REMOVAL

CAUTION / NOTICE / HINT

Necessary Procedure After Parts Removed/Installed/Replaced

for K121

for K121

Learning completes when vehicle is driven

Learning completes when vehicle is operated normally

PROCEDURE