Brake Actuator: Installation: Installation

1. Install the 3 brake actuator bolt case cushions and 3 brake actuator bolt collars to the brake actuator bracket.
   Fig 1: Identifying Brake Actuator Bolt Collars And Bolt Case Cushions

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1. Install the brake actuator assembly to the brake actuator bracket with the 3 bolts.
   Fig 2: Identifying Brake Actuator Bolts

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf) 

   NOTE:

   • If installing a new brake actuator, do not remove the hole plugs before connecting the 6 brake lines because the brake actuator is filled with brake fluid.
   • Do not carry the brake actuator assembly by the connector.
   • Tighten the 3 bolts in the order shown in the illustration.

1. Temporarily install the brake actuator with bracket.
   Fig 3: Identifying Brake Actuator With Bracket

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Install the brake actuator with bracket to the body with the 2 bolts and nut.
   Fig 4: Identifying Brake Actuator With Bracket Bolts And Nut

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Torque: 19 N*m (194 kgf*cm, 14 ft.*lbf) 

   NOTE:

   • Do not damage the brake lines or wire harness.
   • Tighten the 2 bolts and nut in the order shown in the illustration.
2. Install the front No. 1 brake line and rear No. 1 brake line to the clamp.
   Fig 5: Identifying Front And Rear No. 1 Brake Lines

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Front No. 1 Brake Line
   *2	Rear No. 1 Brake Line

3. Connect the vacuum hose to the check valve with the clip.
   Fig 6: Vacuum Hose Clip And Clamp

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Engage the clamp and inspect the condition of the vacuum hose.
   Fig 7: Identifying Vacuum Hose Clamps

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Clamp
   *2	Hose
   *3	Mark

   NOTE:

   Align the vacuum hose matchmarks and the hose clamp as shown in the illustration.

5. Temporarily tighten each brake line to the correct positions of the brake actuator assembly with bracket as shown in the illustration.
   Fig 8: Identifying Numbered Brake Line Locations

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	to Front Wheel Cylinder RH
   *2	to Front Wheel Cylinder LH
   *3	to Rear Wheel Cylinder RH
   *4	to Rear Wheel Cylinder LH
   *5	from 1st Master Cylinder Chamber
   *6	from 2nd Master Cylinder Chamber

6. Using a union nut wrench, fully tighten each brake line.
   Fig 9: Identifying Brake Actuator Connector & Brake Actuator Assembly With Bracket

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Torque: 15 N*m (153 kgf*cm, 11 ft.*lbf) 

   NOTE:

   • This torque value is effective when the union nut wrench is parallel to the torque wrench.
   • Use the formula to calculate special torque values for situations where the union nut wrench is combined with a torque wrench. Refer to PRECAUTION .
7. Connect the brake actuator connector.
   Fig 10: Identifying Brake Line Actuator

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Lock Lever

   NOTE:

   • Make sure that the actuator connector can be connected smoothly. Do not allow water, oil or dirt to enter.
   • Make sure that the connector is locked securely.

HINT: 

Bleed brake system. Refer to BLEEDING .

Torque: 103 N*m (1050 kgf*cm, 76 ft.*lbf) 

HINT: 

Obtain zero point of the yaw rate and acceleration sensor. Refer to CALIBRATION .

HINT: 

Check for sensor signal. Refer to TEST MODE PROCEDURE .

HINT: 

Refer to ON-VEHICLE INSPECTION