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HYDRAULIC UNIT REMOVAL AND INSTALLATION
 
 
noteASC-ECU is located in the hydraulic unit.
cautionWhen the hydraulic unit (integrated with ASC-ECU) is replaced, after turning the ignition switch ON or OFF (vehicle information from ETACS-ECU is registered), always carry out the calibration of steering wheel sensor and G and yaw rate sensor (Refer to and ).
Pre-removal operation
  • Brake fluid draining.
Post-installation operation
  • Brake fluid refilling and air bleeding (Refer to GROUP 35A, On-vehicle Service - Bleeding ).
  • On-vehicle Service - Hydraulic unit check (Refer to ).
Removal steps
1.ASC-ECU harness connector
>>A<<2.Brake tube connection
3.Brake tube
4.Hydraulic unit (ASC-ECU) and hydraulic unit bracket
<<A>>5.Hydraulic unit (ASC-ECU)
6.Hydraulic unit bracket assembly
 
 
REMOVAL SERVICE POINTS
 
 
<<A>> 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)
  2. To front brake (RH)
  3. To rear brake (LH)
  4. To rear brake (RH)
  5. To front brake (LH)
  6. From master cylinder (secondary)