Installation [08/2015 - ]: Procedure

INSTALL BRAKE BOOSTER GASKET
1. Install a new brake booster gasket to the hydraulic brake booster.

INSTALL HYDRAULIC BRAKE BOOSTER ASSEMBLY

Install the hydraulic brake booster assembly with the 4 nuts.
Torque: 14 N.m (145 kgf/cm, 10 ft.lbf)

Temporarily install each brake line to the correct position on the hydraulic brake booster assembly as shown in the illustration.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

TEXT IN ILLUSTRATION

Using a union nut wrench, connect the 4 brake lines to the hydraulic brake booster assembly.
Torque: 15 N.m (155 kgf/cm, 11 ft.lbf)

NOTE:
Use the formula to calculate special torque values for situations where a union nut wrench is combined with a torque wrench (Refer to PRECAUTION [08/2015 - 08/2022] , or refer to PRECAUTION [08/2022 - ] ).

Connect the 3 connectors to the hydraulic brake booster assembly.

INSTALL PUSH ROD PIN
See step 2
INSTALL LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY
1. Install the lower No. 1 instrument panel airbag assembly (Refer to INSTALLATION [08/2015 - ] ).
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Refer to INITIALIZATION [08/2015 - 08/2019] , or refer to INITIALIZATION [08/2019 - 08/2022] , or refer to INITIALIZATION [08/2022 - ] ).
BLEED BRAKE SYSTEM
See step 2
CHECK AND ADJUST BRAKE PEDAL
1. Check and adjust brake pedal (Refer to ADJUSTMENT [08/2015 - 08/2019] , or refer to ADJUSTMENT [08/2019 - ] ).
INSPECT BRAKE MASTER CYLINDER OPERATION
1. Inspect the brake master cylinder operation (Refer to ON-VEHICLE INSPECTION [08/2015 - ] ).
PERFORM YAW RATE AND ACCELERATION SENSOR ZERO POINT CALIBRATION
1. Perform the yaw rate and acceleration sensor zero point calibration (Refer to CALIBRATION [08/2015 - 08/2019] , or refer to CALIBRATION [08/2019 - ] ).