Hydraulic Brake Booster: Removal

NOTE:

Before starting the work, make sure that the ignition switch is OFF and depress the brake pedal more than 20 times.
As high pressure is applied to the brake actuator No. 1 tube, never deform it.
Do not turn the ignition switch to ON until the work is completed.

HINT:

When the pressure in the accumulator is released, the reaction force becomes lighter and the stroke becomes longer.

DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
DRAIN BRAKE FLUID
NOTE: Immediately wash off any brake fluid that comes into contact with a painted surface.
REMOVE FRONT DOOR SCUFF PLATE (See REMOVAL )
REMOVE FRONT FLOOR FOOTREST (See REMOVAL )
REMOVE FOOTREST CLIP (See REMOVAL )
REMOVE COWL SIDE TRIM BOARD (See REMOVAL )
SEPARATE FRONT DOOR OPENING TRIM WEATHERSTRIP (See REMOVAL )
REMOVE INSTRUMENT PANEL NO. 1 REGISTER ASSEMBLY (See REMOVAL )
SEPARATE HOOD LOCK CONTROL LEVER SUB-ASSEMBLY (See REMOVAL )
REMOVE INSTRUMENT PANEL LOWER FINISH PANEL SUB-ASSEMBLY (See REMOVAL )
SEPARATE MASTER CYLINDER PUSH ROD CLEVIS (See REMOVAL )
REMOVE HYDRAULIC BRAKE BOOSTER
1. Disconnect the 3 connectors from the hydraulic brake booster.
  
  Fig 1: Identifying Connectors From Hydraulic Brake Booster
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Using a union nut wrench, disconnect the 4 brake tubes from the hydraulic brake booster.
  
  Fig 2: Identifying Brake Tubes
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Use tags or labels to identify the place to reconnect each line.
  
  Fig 3: Identifying Brake Lines With Placing Position
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the 4 nuts and pull out the hydraulic brake booster.
5. Remove the gasket from the hydraulic brake booster.