Hydraulic Control Assembly - Antilock Brakes: Service and Repair

ABS HYDRAULIC UNIT/CONTROL MODULE ASSEMBLY








CAUTION: Never disassemble ABS hydraulic unit/control module assembly, loosen blind plug or remove motor. Performing any of these prohibited services will affect original performance of ABS hydraulic unit/control module assembly.

HYDRAULIC UNIT INSPECTION
Check hydraulic unit for fluid leakage If any, repair or replace

REMOVAL
1. Disconnect negative (-) cable at battery.





2. Using special tool, disconnect brake pipes (2) from ABS hydraulic unit/control module assembly (1) and loosen flare nuts as shown in the figure
Special tool
(A): 09950-78220

NOTE: Put bleeder plug cap onto pipe to prevent fluid from spilling. Do not allow brake fluid to get on painted surfaces.





3. Disconnect ABS hydraulic unit/control module assembly connector (1).





4. Remove 3 nuts (2) and take out ABS hydraulic unit/control nodule assembly (1) from bracket.

CAUTION:
^ Do not give an impact to hydraulic unit.
^ Use care not to allow dust to enter hydraulic unit.
^ Do not place hydraulic unit on its side or upside down. Handling it in inappropriate way will affect its original performance.

INSTALLATION
Install hydraulic unit by reversing removal procedure, noting the following items.








^ Tighten bolt and nut to specified torque
Tightening torque
Brake pipe flare nut (a): 16 Nm (1.6 kg-m, 12.0 ft. lbs.)
ABS hydraulic unit/control/model assembly nut (b) 21 Nm (2.1 kg-m, 15.5 ft. lbs.)
ABS hydraulic unit bracket bolt (c): 10 Nm (1.0 kg-m, 7.5 ft. lbs.)
^ Bleed air from brake system.
^ Check each installed part for fluid leakage and perform hydraulic unit operation check.