Toyota Prius: Steering Wheel

• 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 steering wheel assembly removal/installation are shown below.

CAUTION / NOTICE / HINT

CAUTION:

Be sure to read Precaution thoroughly before servicing.

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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 cooler expansion valve standard position is recognized.	-

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	PRECAUTION	-		-	-
2	ALIGN FRONT WHEELS FACING STRAIGHT AHEAD	-		-	-
3	HORN BUTTON ASSEMBLY	45130	-	-	-
4	STEERING WHEEL ASSEMBLY	45100		-	-
5	STEERING PAD SWITCH ASSEMBLY	84250A	-	-	-
6	LOWER STEERING WHEEL BOSS COVER	45184	-	-	-
7	MULTIPLEX NETWORK STEERING ECU	864A1A	-	-	-

*A

w/ Multiplex Network Steering ECU

-

-

PROCEDURE

1. PRECAUTION

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2. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

3. REMOVE HORN BUTTON ASSEMBLY

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4. REMOVE STEERING WHEEL ASSEMBLY

*a

Matchmark

-

-

(1) Disconnect the connector.

(2) w/ Multiplex Network Steering ECU:

1. Disconnect the connector.

(3) Using a 10 mm hexagon socket wrench, remove the steering wheel assembly set bolt.

(4) Put matchmarks on the steering wheel assembly and steering main shaft.

(5) Temporarily install the steering wheel assembly set bolt.

NOTICE:

Do not overtighten the steering wheel assembly set bolt.

*a

Turn

*b

Hold

(1) Using SST, separate the steering wheel assembly.

SST: 09950-50013

09951-05010

09952-05010

09953-05020

09954-05031

09957-04010

SST: 09950-60011

09951-00330

NOTICE:

Apply a small amount of grease to the threads and tip of SST (09953-05020) before use.

(2) Remove the steering wheel assembly set bolt and steering wheel assembly.

5. REMOVE STEERING PAD SWITCH ASSEMBLY

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6. REMOVE LOWER STEERING WHEEL BOSS COVER

7. REMOVE MULTIPLEX NETWORK STEERING ECU (w/ Multiplex Network Steering ECU)

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Installation

INSTALLATION

CAUTION / NOTICE / HINT

CAUTION / NOTICE / HINT

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	MULTIPLEX NETWORK STEERING ECU	864A1A	-	-	-
2	LOWER STEERING WHEEL BOSS COVER	45184	-	-	-
3	STEERING PAD SWITCH ASSEMBLY	84250A	-	-	-
4	ALIGN FRONT WHEELS FACING STRAIGHT AHEAD	-		-	-
5	INSPECT AND ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY	-		-	-
6	STEERING WHEEL ASSEMBLY	45100		-	-
7	HORN BUTTON ASSEMBLY	45130	-	-	-
8	CHECK STEERING WHEEL CENTER POINT	-	-	-

*A	w/ Multiplex Network Steering ECU	-	-
	Tightening torque for "Major areas involving basic Toyota Prius vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)		N*m (kgf*cm, ft.*lbf): Specified torque

PROCEDURE

1. INSTALL MULTIPLEX NETWORK STEERING ECU (w/ Multiplex Network Steering ECU)

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2. INSTALL LOWER STEERING WHEEL BOSS COVER

3. INSTALL STEERING PAD SWITCH ASSEMBLY

4. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

5. INSPECT AND ADJUST SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY

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6. INSTALL STEERING WHEEL ASSEMBLY

*a

Matchmark

-

-

(1) Align the matchmarks on the steering wheel assembly and steering main shaft to install the steering wheel assembly.

(2) Using a 10 mm hexagon socket wrench, install the steering wheel assembly set bolt.

Torque:

62 N·m {632 kgf·cm, 46 ft·lbf}

(3) Connect the connector.

(4) w/ Multiplex Network Steering ECU:

1. Connect the connector.

7. INSTALL HORN BUTTON ASSEMBLY

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8. CHECK STEERING WHEEL CENTER POINT

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