REMOVAL AND INSTALLATION



<LH DRIVE VEHICLES>


note ASC-ECU is located in the hydraulic unit.
caution When the hydraulic unit (ASC-ECU) is replaced, always carry out the calibration of the steering wheel sensor, the G and yaw rate sensor and the brake fluid pressure sensor (Refer to , and ).
Pre-removal operation
  • Strut tower bar removal (Refer to GROUP 42A - Strut Tower Bar ).
  • Brake fluid draining

Post-installation operation
  • Brake fluid refilling and air bleeding (Refer to GROUP 35A - On-vehicle Service, Basic Brake System Bleeding ).
  • Strut tower bar installation (Refer to GROUP 42A - Strut Tower Bar ).
  • Hydraulic unit check (Refer to ).





Removal steps
<<A>>

1.
ASC-ECU harness connector


2.
Suction pipe installation bolt


3.
Wheel speed sensor harness connector connection


4.
Wheel speed sensor harness clip connection

>>A<<
5.
Brake tube connection


6.
Brake tube and clip connection


7.
Suction pipe, liquid pipe and clip connection


8.
Hydraulic unit (ASC-ECU) and hydraulic unit bracket
<<B>>

9.
Hydraulic unit (ASC-ECU)


10.
Hydraulic unit bracket insulator


11.
Hydraulic unit bracket B


12.
Hydraulic unit bracket A

<RH DRIVE VEHICLES>


note ASC-ECU is located in the hydraulic unit.
caution When the hydraulic unit (ASC-ECU) is replaced, always carry out the calibration of the steering wheel sensor, the G and yaw rate sensor and the brake fluid pressure sensor (Refer to , and ).
Pre-removal operation
  • Strut tower bar removal (Refer to GROUP 42A - Strut Tower Bar ).
  • Brake fluid draining
  • Air cleaner body assembly removal <Refer to GROUP 15 - Air Cleaner (2000), (2200), (2400) or (3000)>.

Post-installation operation
  • Air cleaner body assembly installation <Refer to GROUP 15 - Air Cleaner (2000), (2200), (2400) or (3000)>.
  • Brake fluid refilling and air bleeding (Refer to GROUP 35A - On-vehicle Service, Basic Brake System Bleeding .)
  • Strut tower bar installation (Refer to GROUP 42A - Strut Tower Bar ).
  • Hydraulic unit check (Refer to ).





Removal steps
<<A>>

1.
ASC-ECU harness connector

>>A<<
2.
Brake tube connection
<<B>>

3.
Hydraulic unit (ASC-ECU)


4.
Hydraulic unit bracket insulator


5.
Protector


6.
Hydraulic unit bracket

REMOVAL SERVICE POINTS



<<A>> ASC-ECU HARNESS CONNECTOR DISCONNECTION



Operate the lock lever to disconnect the ASC-ECU harness connector as shown in the figure.

<<B>> HYDRAULIC UNIT (ASC-ECU) REMOVAL


caution
  • Be careful when removing the hydraulic unit because it is heavy.
  • Never loosen the nuts and the bolts because the hydraulic unit cannot be disassembled.
  • Do not drop or shock the hydraulic unit.
  • Do not turn the hydraulic unit upside down or lay down the unit because the inner air becomes difficult to be bled.

INSTALLATION SERVICE POINT



>>A<< BRAKE TUBE CONNECTION



Install the brake pipe to the hydraulic unit as shown in the figure.

  1. To rear brake (RH)
  2. From master cylinder (secondary)
  3. To front brake (LH)
  4. To front brake (RH)
  5. From master cylinder (primary)
  6. To rear brake (LH)