Hydraulic Brake Booster: Removal

NOTE: Before starting the work, make sure that the ignition switch is OFF and depress the brake pedal more than 40 times.

HINT:

When a pressure in power supply system is released, reaction force becomes light and stroke becomes longer.

NOTE:

DRAW OUT FLUID WITH SYRINGE
NOTE: Do not let brake fluid remain on a painted surface. Wash it off immediately.
REMOVE SCUFF PLATE, COWL SIDE TRIM, LOWER NO. 1 PANEL, LH LOWER PANEL AND NO. 2 HEATER TO REGISTER DUCT (See COMPONENTS )
REMOVE ABS OR ABS & TRAC & VSC ECU
Remove the 2 nuts and ABS or ABS & TRAC & VSC ECU.

Torque: 5.0 N.m (51 kgf.cm, 44 in.lbf)
w/ ABS only: DISCONNECT 4 CONNECTORS

Fig 1: Disconnecting Connectors (With ABS Only)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
w/ ABS & TRAC & VSC only: DISCONNECT 5 CONNECTORS

Fig 2: Disconnecting Connectors (With ABS, TRAC & VSC Only)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
w/ ABS only: DISCONNECT BRAKE LINES
Using SST, disconnect the 3 brake lines.

SST 09023-00101

Torque: 15 N.m (155 kgf.cm, 11 ft.lbf)

Fig 3: Disconnecting Brake Lines (With ABS Only)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
w/ ABS & TRAC & VSC only: DISCONNECT BRAKE LINES
Using SST, disconnect the 4 brake lines.

SST 09023-00101

Torque: 15 N.m (155 kgf.cm, 11 ft.lbf)

Fig 4: Disconnecting Brake Lines (With ABS, TRAC & VSC Only)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE CLIP AND CLEVIS PIN
REMOVE HYDRAULIC BRAKE BOOSTER ASSEMBLY
1. Remove the 4 booster installation nuts.
  Torque: 15 N.m (155 kgf.cm, 11 ft.lbf)
2. Remove the booster assembly and gasket.
Fig 5: Removing Hydraulic Brake Booster Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002