Hydraulic Control Assembly - Antilock Brakes: Service and Repair

ABS Hydraulic Unit / Control Module Assembly Removal and Installation

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.

Removal

NOTE: Before removal, inspect the parts referring to ABS Hydraulic Unit / Control Module Assembly On-Vehicle Inspection.

1) Disconnect negative cable from battery.
2) Disconnect ABS hydraulic unit / control module assembly connector (1) by pull down the lock (2).





3) Using special tool, loosen flare nuts (1) and disconnect brake pipes (2) from ABS hydraulic unit/ control module assembly (3).
Special Tool
(A): 09950-78220

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





4) Remove three bolts and disconnect take out ABS hydraulic unit / control module assembly (1) from bracket using flat end rod or the like (2).

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
1) Install hydraulic unit / control module assembly by reversing removal procedure.
Tightening torque
Brake pipe flare nut a: 16 N-m (1.6 kg-m, 11.5 lb-ft)
ABS hydraulic unit / control module assembly bolt b: 9 N-m (0.9 kg-m, 6.5 lb-ft)
ABS hydraulic unit / control module assembly bracket bolt c: 23 N-m (2.3 kg-m, 16.5 lb-ft)





2) Bleed air from brake system referring to Air Bleeding of Brake System.
3) Check each installed part for fluid leakage and perform ABS Hydraulic Unit Operation Check.

NOTE: For new ABS hydraulic unit / control module assembly, if ABS Hydraulic Unit Operation Check procedure has not been performed, ABS warning lamp may flash when ignition switch is turned ON position.
Accordingly perform ABS Hydraulic Unit Operation Check to stop flashing of ABS warning lamp.