Toyota Prius: Shift Control Actuator

Toyota Prius (XW60) 2023-2025 Service Manual / Drivetrain / Pa10/pb10/pb12 (hybrid Transmission / Transaxle) / Shift Control Actuator

Removal
Installation

Removal

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 shift control actuator assembly 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
*: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation.
Replacement of shift actuator ECU (Shift control actuator assembly)*	Perform actuator position learning	Shift position not correctly changing Shift position indicator not illuminating or displaying the incorrect drive state

NOTICE:

When disconnecting a wire harness of any component connected to the supply power of the integrated capacitor (integration control supply) or when removing the integrated capacitor (integration control supply), make sure to wait 5 minutes or more after turning the ignition switch off for self-diagnosis to complete and the voltage of the integrated capacitor (integration control supply) to discharge.
If the shift control actuator assembly is replaced or removed, make sure to perform actuator position learning.
If not performed after replacing the shift control actuator assembly, a malfunction such as the shift position not correctly changing, the shift position indicator not illuminating or displaying the incorrect drive state, etc. may occur.
When the shift control actuator assembly is replaced or removed, although the displayed value of Data List item "ACT Position Learning Complete Status" may be "Complete" based on information from before removal, make sure to perform actuator position learning.
When any of the above procedures are completed, change the shift position to all positions and check the following items:
- The shift position indicator illuminates in accordance with the current position.
- The Toyota Prius vehicle does not move when in shift state P (parking brake released)
- The vehicle does not drive when in shift state N
- The vehicle drives when in shift state D or R

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	SECURE Toyota Prius Vehicle	-		-	-
2	NO. 1 ENGINE UNDER COVER ASSEMBLY	51410	-	-	-

Procedure		Part Name Code
3	SHIFT CONTROL ACTUATOR ASSEMBLY	35580		-	-
4	SHIFT CONTROL ACTUATOR BRACKET	35541	-	-	-
5	SHIFT CONTROL ACTUATOR SEAL	35563		-	-

●

Non-reusable part

★

Precoated part

PROCEDURE

1. SECURE Toyota Prius Vehicle

(1) 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 Toyota Prius vehicle may suddenly move, possibly resulting in an accident or serious injury.

2. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY

for 2ZR-FXE:
Click here
for M20A-FXS:
Click here

3. REMOVE SHIFT CONTROL ACTUATOR ASSEMBLY

NOTICE:

When disconnecting a wire harness of any component connected to the supply power of the integrated capacitor (integration control supply) or when removing the integrated capacitor (integration control supply), make sure to wait 5 minutes or more after turning the ignition switch off for self-diagnosis to complete and the voltage of the integrated capacitor (integration control supply) to discharge.
Do not rotate the spline part (*a) of the shift control actuator assembly.

4. REMOVE SHIFT CONTROL ACTUATOR BRACKET

HINT:

Perform this procedure only when replacement of the shift control actuator bracket is necessary.

5. REMOVE SHIFT CONTROL ACTUATOR SEAL

NOTICE:

Remove all fragments of the shift control actuator seal.
The shift control actuator seal may remain attached to the hybrid Toyota Prius vehicle transaxle assembly side. Make sure to remove it.
Do not use a sharp tool such as a scraper.

HINT:

Perform this procedure only when replacement of the shift control actuator seal is necessary.

Installation

INSTALLATION

CAUTION / NOTICE / HINT

NOTICE:

When disconnecting a wire harness of any component connected to the supply power of the integrated capacitor (integration control supply) or when removing the integrated capacitor (integration control supply), make sure to wait 5 minutes or more after turning the ignition switch off for self-diagnosis to complete and the voltage of the integrated capacitor (integration control supply) to discharge.
If the shift control actuator assembly is replaced or removed, make sure to perform actuator position learning.
If not performed after replacing the shift control actuator assembly, a malfunction such as the shift position not correctly changing, the shift position indicator not illuminating or displaying the incorrect drive state, etc. may occur.
When the shift control actuator assembly is replaced or removed, although the displayed value of Data List item "ACT Position Learning Complete Status" may be "Complete" based on information from before removal, make sure to perform actuator position learning.
When any of the above procedures are completed, change the shift position to all positions and check the following items:
- The shift position indicator illuminates in accordance with the current position.
- The Toyota Prius vehicle does not move when in shift state P (parking brake released)
- The vehicle does not drive when in shift state N
- The vehicle drives when in shift state D or R

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	SHIFT CONTROL ACTUATOR SEAL	35563	-	-
2	SHIFT CONTROL ACTUATOR BRACKET	35541	-	-
3	SHIFT CONTROL ACTUATOR ASSEMBLY	35580	-	-

	Tightening torque for "Major areas involving basic Toyota Prius vehicle performance such as moving/turning/stopping": Nm (kgfcm, ft.*lbf)	●	Non-reusable part
	Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent	★	Precoated part

Procedure		Part Name Code
4	NO. 1 ENGINE UNDER COVER ASSEMBLY	51410	-	-	-
5	ACTUATOR POSITION LEARNING	-	-	-

N*m (kgf*cm, ft.*lbf): Specified torque

PROCEDURE

1. INSTALL SHIFT CONTROL ACTUATOR SEAL

HINT:

Perform this procedure only when replacement of the shift control actuator seal is necessary.
As a new shift control actuator assembly has the shift control actuator seal already installed, it is not necessary to install a shift control actuator seal if a new shift control actuator assembly is used.

(1) Clean and degrease the installation surface of the shift control actuator seal and contact surface of the hybrid Toyota Prius vehicle transaxle assembly.

NOTICE:

Do not use a sharp tool such as a scraper.

(2) Install a new shift control actuator seal to the shift control actuator assembly.

2. INSTALL SHIFT CONTROL ACTUATOR BRACKET

HINT:

Perform this procedure only when replacement of the shift control actuator bracket is necessary.

(1) Apply adhesive to 2 or 3 threads on the ends of the 3 new bolts.

Adhesive:

Toyota Genuine Adhesive 1324, Three Bond 1324 or equivalent

NOTICE:

Make sure to install the 3 bolts immediately after applying adhesive to prevent foreign matter from attaching to them.

(2) Temporarily install the shift control actuator bracket to the hybrid Toyota Prius vehicle transaxle assembly with 3 new bolts.

(3) Tighten the 3 bolts.

Torque:

17.5 N·m {178 kgf·cm, 13 ft·lbf}

3. INSTALL SHIFT CONTROL ACTUATOR ASSEMBLY

NOTICE:

When disconnecting a wire harness of any component connected to the supply power of the integrated capacitor (integration control supply) or when removing the integrated capacitor (integration control supply), make sure to wait 5 minutes or more after turning the ignition switch off for self-diagnosis to complete and the voltage of the integrated capacitor (integration control supply) to discharge.
Do not rotate the spline part (*a) of the shift control actuator assembly.
Make sure to engage the parking lock before performing this procedure.
Make sure that the wheels of the Toyota Prius vehicle are unable to rotate with the parking brake released.

*a	Spline Portion of Shift Control Actuator Assembly	*b	Not P Position
*c	P Position	*d	20.6°
*e	2-flats Portion of Parking Lock Shaft	*f	Spline Portion of Parking Lock Shaft
*g	Rotate Approximately 20°	-	-

(1) Check the spline portion (*a) of the shift control actuator assembly.

If the spline portion is not in the P position, perform step (ii).
If the spline portion is in the P position, perform step (iii).

(2) Using a pair of pliers, grip the spline portion (*f) of the parking lock shaft that has been wrapped with a cloth or other material and rotate it approximately 20° in the direction shown by the arrow in the illustration to release the parking lock.

NOTICE:

Do not rotate the wheels of the Toyota Prius vehicle.
Do not grip the 2-flats portion (*e) of the parking lock shaft.
Make sure to use a cloth or other material to prevent damage to the spline portion (*f) of the parking lock shaft.

(3) Temporarily install the shift control actuator assembly to the shift control actuator bracket with the 3 bolts.

(4) Fully tighten the 3 bolts.

Torque:

17.5 N·m {178 kgf·cm, 13 ft·lbf}

(5) Connect the 2 shift control actuator assembly connectors.

NOTICE:

Make sure to perform actuator position learning after removing and installing the shift control actuator assembly.

4. INSTALL NO. 1 ENGINE UNDER COVER ASSEMBLY