Toyota Prius: Front Power Seat Motor Assembly

Toyota Prius (XW60) 2023-2025 Service Manual / Vehicle Interior / Seat / Front Power Seat Motor Assembly

Removal
Inspection
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 front power seat motor 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.
Front seatback frame sub-assembly LH* Front seat adjuster assembly LH* Power seat lifter motor assembly LH* Power seat tilt motor assembly LH*	Initialize position control ECU	Front Power Seat Control System (w/ Memory)

CAUTION:

Wear protective gloves. Sharp areas on the parts may injure your hands.

CAUTION / NOTICE / HINT

HINT:

When the cable is disconnected / reconnected to the auxiliary 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 Toyota Prius vehicle is driven

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Front Camera System	Drive the Toyota Prius vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.

Learning completes when vehicle is operated normally

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
1: w/o Power Back Door System 2: w/ Power Back Door System
Power Door Lock Control System*1 Back door opener	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.
Power Back Door System*2	Reset back door close position
Air Conditioning System	for HEV Model: After the ignition switch is turned to ON, the servo motor standard position is recognized. for PHEV Model: After the ignition switch is turned to ON, the servo motor and expansion valve standard position is recognized.	-

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	PRECAUTION	-		-	-
2	FRONT SEAT ASSEMBLY	-	-	-	-
3	DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER	71074S	-	-	-

Procedure		Part Name Code
4	FRONT SEAT FRONT CUSHION SHIELD	71868N	-	-
5	FRONT SEAT CUSHION SHIELD	71812D	-	-
6	FRONT SEAT INNER CUSHION SHIELD	71862	-	-

Procedure		Part Name Code
7	SEPARATE TYPE FRONT SEATBACK ASSEMBLY	-	-	-	-

SEPARATE TYPE FRONT SEAT CUSHION ASSEMBLY

Procedure		Part Name Code
8	SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD	-	-	-	-
9	LH SEAT RECLINING ADJUSTER INSIDE COVER	71876G	-	-	-
10	DISCONNECT FRONT SEAT WIRE	82192	-	-	-

for LH Side

Procedure		Part Name Code
11	POWER SEAT LIFTER MOTOR ASSEMBLY	-	-	-	-
12	POWER SEAT TILT MOTOR ASSEMBLY	-	-	-	-

*1	FRONT SEAT VERTICAL HOUSING SUB-ASSEMBLY	*2	VERTICAL ADJUSTER SPACER
*3	FRONT SEAT ADJUSTER PLATE	-	-

PROCEDURE

1. PRECAUTION

NOTICE:

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

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2. REMOVE FRONT SEAT ASSEMBLY

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3. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER

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4. REMOVE FRONT SEAT FRONT CUSHION SHIELD

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5. REMOVE FRONT SEAT CUSHION SHIELD

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6. REMOVE FRONT SEAT INNER CUSHION SHIELD

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7. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY

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8. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD

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9. REMOVE LH SEAT RECLINING ADJUSTER INSIDE COVER (for LH Side)

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10. DISCONNECT FRONT SEAT WIRE

HINT:

As the illustration shown is an example, the actual details may differ.

11. REMOVE POWER SEAT LIFTER MOTOR ASSEMBLY

Remove in this Direction

12. REMOVE POWER SEAT TILT MOTOR ASSEMBLY

Inspection

INSPECTION

PROCEDURE

1. INSPECT POWER SEAT LIFTER MOTOR ASSEMBLY LH

(a) Check the operation of the power seat lifter motor assembly LH.

(1) Check that the motor gear rotates smoothly when the auxiliary battery is connected to the connector terminals.

OK:

w/ Memory

Click Location & Routing(b3) Click Connector(b3)

Tester Connection

Operational Direction

b3-1 - Auxiliary battery positive ( )

b3-4 - Auxiliary battery negative (-)

Motor gear rotates counterclockwise

b3-4 - Auxiliary battery positive ( )

b3-1 - Auxiliary battery negative (-)

Motor gear rotates clockwise

w/o Memory

Click Location & Routing(b6) Click Connector(b6)

Tester Connection

Operational Direction

b6-1 - Auxiliary battery positive ( )

b6-2 - Auxiliary battery negative (-)

Motor gear rotates counterclockwise

b6-2 - Auxiliary battery positive ( )

b6-1 - Auxiliary battery negative (-)

Motor gear rotates clockwise

If the result is not as specified, replace the power seat lifter motor assembly LH.

*A	w/ Memory
*B	w/o Memory
*a	Component without harness connected (Power Seat Lifter Motor Assembly LH)
*b	Clockwise
*c	Counterclockwise
*d	Motor Gear

2. INSPECT POWER SEAT TILT MOTOR ASSEMBLY LH

(a) Check the operation of the power seat tilt motor assembly LH.

(1) Check that the motor gear rotates smoothly when the auxiliary battery is connected to the connector terminals.

OK:

w/ Memory

Click Location & Routing(b2) Click Connector(b2)

Tester Connection

Operational Direction

b2-1 - Auxiliary battery positive ( )

b2-4 - Auxiliary battery negative (-)

Motor gear rotates counterclockwise

b2-4 - Auxiliary battery positive ( )

b2-1 - Auxiliary battery negative (-)

Motor gear rotates clockwise

w/o Memory

Click Location & Routing(b5) Click Connector(b5)

Tester Connection

Operational Direction

b5-1 - Auxiliary battery positive ( )

b5-2 - Auxiliary battery negative (-)

Motor gear rotates counterclockwise

b5-2 - Auxiliary battery positive ( )

b5-1 - Auxiliary battery negative (-)

Motor gear rotates clockwise

If the result is not as specified, replace the power seat tilt motor assembly LH.

*A	w/ Memory
*B	w/o Memory
*a	Component without harness connected (Power Seat Tilt Motor Assembly LH)
*b	Clockwise
*c	Counterclockwise
*d	Motor Gear

Installation

INSTALLATION

CAUTION / NOTICE / HINT

CAUTION:

Wear protective gloves. Sharp areas on the parts may injure your hands.

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	POWER SEAT TILT MOTOR ASSEMBLY	-	-	-	-
2	POWER SEAT LIFTER MOTOR ASSEMBLY	-		-	-

*1	FRONT SEAT VERTICAL HOUSING SUB-ASSEMBLY	*2	VERTICAL ADJUSTER SPACER
*3	FRONT SEAT ADJUSTER PLATE	-	-
	Tightening torque for "Major areas involving basic Toyota Prius vehicle performance such as moving/turning/stopping": Nm (kgfcm, ft.*lbf)	-	-

Procedure		Part Name Code
3	CONNECT FRONT SEAT WIRE	82192	-	-	-
4	LH SEAT RECLINING ADJUSTER INSIDE COVER	71876G	-	-	-
5	SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD	-	-	-	-

for LH Side

Procedure		Part Name Code
6	SEPARATE TYPE FRONT SEATBACK ASSEMBLY	-	-	-	-

*1	SEPARATE TYPE FRONT SEAT CUSHION ASSEMBLY	-	-
	Tightening torque for "Major areas involving basic Toyota Prius vehicle performance such as moving/turning/stopping": Nm (kgfcm, ft.*lbf)	-	-

Procedure		Part Name Code
7	FRONT SEAT INNER CUSHION SHIELD	71862	-	-	-
8	FRONT SEAT CUSHION SHIELD	71812D	-	-	-
9	FRONT SEAT FRONT CUSHION SHIELD	71868N	-	-	-

Procedure		Part Name Code
10	CONNECT SEPARATE TYPE FRONT SEATBACK COVER	71074S	-	-	-
11	FRONT SEAT ASSEMBLY	-	-	-	-

PROCEDURE

1. INSTALL POWER SEAT TILT MOTOR ASSEMBLY

Torque:

5.0 N·m {51 kgf·cm, 44 in·lbf}

2. INSTALL POWER SEAT LIFTER MOTOR ASSEMBLY

*1	Front Seat Vertical Housing Sub-assembly	*2	Front Seat Adjuster Assembly
*a	Stud Bolt of the Front Seat Vertical Housing Sub-assembly	*b	Hole of the Front Seat Adjuster Assembly
	Install in this Direction	-	-

(1) Install the front seat vertical housing sub-assembly.

NOTICE:

Make sure to insert the stud bolt of the front seat vertical housing sub-assembly into the hole of the front seat adjuster assembly as shown in the illustration.
Make sure to position the front seat adjuster assembly so that when the front seat vertical housing sub-assembly is installed, their gears will be positioned as shown in the illustration.

(2) Install the vertical adjuster spacer.

(3) Install the front seat adjuster plate with the 3 nuts.

Torque:

5.0 N·m {51 kgf·cm, 44 in·lbf}

NOTICE:

Tighten the nuts in the order shown in the illustration.

3. CONNECT FRONT SEAT WIRE

4. INSTALL LH SEAT RECLINING ADJUSTER INSIDE COVER (for LH Side)

5. INSTALL SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD

6. INSTALL SEPARATE TYPE FRONT SEATBACK ASSEMBLY

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