Toyota Prius: Rear Brake Flexible Hose

• 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 rear brake flexible hose 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: Also necessary after performing a tire rotation. *2: It is not necessary to perform this procedure if the tire pressure warning valve and transmitters are installed to the same location. *3: The vehicle height changes because of tire replacement.
Tires	Initialization*1*2 Tire Position Identification*1*2	Tire Pressure Warning System	Refer to Procedures Necessary When Replacing Parts (for Tire Pressure Warning System)
	Rear television camera assembly optical axis (Back camera position setting)*3	Parking Assist Monitor System
	Parking assist ECU initialization*3	Panoramic View Monitor System
		Advanced Park

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.

Items for which learning is completed by driving the vehicle

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

Items for which learning is completed by operating the vehicle 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

NOTICE:

• If both left and right rear flexible hoses are disconnected at the same time, be sure to place an identification mark on each hose to indicate its installation position.

HINT:

• Use the same procedure for the RH side and LH side.
• The following procedure is for the LH side.

CAUTION / NOTICE / HINT

COMPONENTS (REMOVAL)

Procedure		Part Name Code
1	PRECAUTION	-		-	-
2	REAR WHEEL	-	-	-	-
3	DISABLE BRAKE CONTROL	-		-	-
4	DRAIN BRAKE FLUID	-	-		-
5	REAR FLEXIBLE HOSE	47319F		-	-

*1	BRAKE LINE	*2	GASKET
●	Non-reusable part	-	-

PROCEDURE

1. PRECAUTION

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

2. REMOVE REAR WHEEL

Click here

3. DISABLE BRAKE CONTROL

Click here

4. DRAIN BRAKE FLUID

NOTICE: If brake fluid leaks onto any painted surface, immediately wash it off.

5. REMOVE REAR FLEXIBLE HOSE

(1) Remove the union bolt and gasket, and disconnect the rear flexible hose from the rear disc brake cylinder assembly.

(2) Remove the bolt and separate the rear flexible hose.

(3) Using a union nut wrench, disconnect the brake line while holding the rear flexible hose with a wrench.

NOTICE:

• Do not kink or damage the brake line.
• Do not allow any foreign matter such as dirt or dust to enter the brake line from the connecting parts.

(4) Remove the clip and rear flexible hose from the vehicle body.

Installation

INSTALLATION

CAUTION / NOTICE / HINT

NOTICE:

• Because the left and right rear flexible hoses are not interchangeable, verify the part number when installing the rear flexible hoses.
• When reusing the rear flexible hoses, use the identification marks created during removal to install each rear flexible hose to its original position.

HINT:

• Use the same procedure for the RH side and LH side.
• The following procedure is for the LH side.

COMPONENTS (INSTALLATION)

Procedure		Part Name Code
1	REAR FLEXIBLE HOSE	47319F		-	-
2	CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL	-		-	-
3	BLEED BRAKE LINE	-	-	-
4	REAR WHEEL	-	-	-	-
5	INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL	-	-	-

*1	BRAKE LINE	*2	GASKET
	Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)	*	For use with a union nut wrench
●	Non-reusable part	-	-

PROCEDURE

1. INSTALL REAR FLEXIBLE HOSE

NOTICE: When installing the rear flexible hose, minimize twisting of the hose.

*a	Identification Mark	*b	Union Nut Wrench
*c	Torque Wrench Fulcrum Length	-	-

(1) Install the rear flexible hose with a new clip.

NOTICE:

Install the clip as far as it will go.

(2) Using a union nut wrench, connect the brake line to the rear flexible hose while holding the rear flexible hose with a wrench.

Torque:

Specified tightening torque :

15.2 N·m {155 kgf·cm, 11 ft·lbf}

NOTICE:

• Do not kink or damage the brake line.
• Do not allow any foreign matter such as dirt or dust to enter the brake line from the connecting parts.

HINT:

• Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

  Click here

• When using a union nut wrench (fulcrum length of 22 mm (0.866 in.)) + torque wrench (fulcrum length of 162 mm (6.38 in.)):

  13.4 N*m (137 kgf*cm, 10 ft.*lbf)

(3) Install the rear flexible hose with the bolt.

Torque:

29 N·m {296 kgf·cm, 21 ft·lbf}

(4) Install the rear flexible hose to the rear disc brake cylinder assembly with a new union bolt and a new gasket.

Torque:

30.4 N·m {310 kgf·cm, 22 ft·lbf}

NOTICE:

Install the rear flexible hose lock securely into the lock hole in the rear disc brake cylinder assembly.

2. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL

Click here

3. BLEED BRAKE LINE

Click here

4. INSTALL REAR WHEEL

Click here

5. INITIALIZATION AFTER RECONNECTING AUXILIARY BATTERY TERMINAL

HINT:

When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

Click here