REMOVAL AND INSTALLATION


<LHD>


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 ) <Vehicles with strut tower bar>.
  • Brake fluid draining.

 Post-installation operation
  • Brake fluid refilling and air bleeding (Refer to GROUP 35A - On-vehicle Service, Brake Fluid Level Inspection and Bleeding ).
  • Strut tower bar installation (Refer to GROUP 42A - Strut Tower Bar ) <Vehicles with strut tower bar>.
  • Hydraulic unit check (Refer to ).




Removal steps
<<A>>
1.
 ASC-ECU harness connector


2.
 Wheel speed sensor harness connector connection


3.
 Wheel speed sensor harness clip connection

>>A<<
 4.
 Brake tube connection


5.
 Brake tube clip and body connection


6.
 Hydraulic unit (ASC-ECU) and hydraulic unit bracket
<<B>>
7.
 Hydraulic unit (ASC-ECU)


8.
 Hydraulic unit bracket insulator


9.
 Hydraulic unit bracket B


10.
 Suction pipe, liquid pipe and clip connection


11.
 Hydraulic unit bracket A

<RHD>


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
  • Brake fluid draining
  • Air cleaner body assembly removal <Refer to GROUP 15 - Air Cleaner (4A9), (4B1), (BWC), (4B1-T/C)>.
  • Strut tower bar removal (Refer to GROUP 42A - Strut Tower Bar ) <Vehicles with strut tower bar>.

 Post-installation operation
  • Air cleaner body assembly installation <Refer to GROUP 15 - Air Cleaner (4A9), (4B1), (BWC), (4B1-T/C)>.
  • Strut tower bar installation (Refer to GROUP 42A - Strut Tower Bar ) <Vehicles with strut tower bar>.
  • Brake fluid refilling and air bleeding (Refer to GROUP 35A - On-vehicle Service, Basic Brake System Bleeding ).
  • Hydraulic unit check (Refer to ).




Removal steps
<<A>>
1.
 ASC-ECU harness connector

>>A<<
 2.
 Brake tube connection


3.
 Protector


4.
 Hydraulic unit (ASC-ECU) and hydraulic unit bracket
<<B>>
5.
 Hydraulic unit (ASC-ECU)


6.
 Hydraulic unit bracket insulator


7.
 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. From master cylinder (primary) <Marking colour: Blue>
  2. To front brake (RH) <Marking colour: Orange>
  3. To front brake (LH) <Marking colour: Red>
  4. From master cylinder (secondary) <Marking colour: Yellow>
  5. To rear brake (RH) <Marking colour: Pink>
  6. To rear brake (LH) <Marking colour: White>