Hydraulic Unit / Control Module Assembly Removal and Installation

ABS (ESP(R)) Hydraulic Unit / Control Module Assembly Removal and Installation

ABS (ESP(R)) Hydraulic Unit / Control Module Assembly On-Vehicle Inspection

NOTE:

- Performing certain prohibited service operations will affect the original performance of the ABS hydraulic unit / control module assembly.
Do not perform the following prohibited service operations:

- Do not disassemble the ABS hydraulic unit / control module assembly.
- Do not loosen the blind plug.
- Do not remove the motor.
- Regarding ABS hydraulic unit / control module assembly removal and installation, confirm specified torque and do not use impact tool to avoid damage.
- Use care not to allow dust to enter ABS hydraulic unit / control module.
- Do not place ABS hydraulic unit / control module on its side or upside down. Handling it in inappropriate way will affect its original performance.
- Do not give an impact to hydraulic unit.

- Brake fluid is extremely damaging to painted surfaces.
If brake fluid contacts a painted surface, immediately wipe it off and flush the surface thoroughly with water.

NOTE:

- For ESP(R) model, be sure to perform Programming and Relearning Sensor Calibration of ESP(R) Components
before performing hydraulic unit operation check when ESP(R) hydraulic unit / control module is replaced.
- When ignition switch is turned to ON position after replacing ESP(R) hydraulic unit / control module, DTC C1075, C1076, C1078 and C1077 are stored in ESP(R) control module and the indicator lights light up or flash. However, these are in normal operation. These DTCs are cleared and lights are turned off if the following operations are performed in order.
1) Programming and Relearning Sensor Calibration of ESP(R) Components.
2) ABS Hydraulic Unit Operation Check ABS Hydraulic Unit Operation Check.
3) Ignition switch OFF and ON.










Removal

1) Disconnect negative (-) cable from battery.
2) Remove ECM referring to ECM (Engine Control Module) Removal and Installation ECM (Engine Control Module) Removal and Installation.
3) Disconnect ABS (ESP(R)) control module connector as shown in figure.











4) Using special tool, loosen flare nuts (1) and disconnect brake pipes (2) from ABS (ESP(R)) 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.

5) Disconnect harness clamps (4) from bracket (5).





6) Remove ABS (ESP(R)) hydraulic unit / control module with bracket from vehicle by removing bracket bolt and two bracket nuts.
7) Remove bolt and pull out ABS (ESP(R)) hydraulic unit / control module assembly (1) from bracket (3) using flat end rod or the like (2).






Installation

1) Install hydraulic unit / control module assembly by reversing removal procedure.

Tightening torque
Brake pipe flare nut for M10 16 Nm (1.6 kgf-m, 12.0 lbf-ft)
Brake pipe flare nut for M12 19 Nm (1.9 kgf-m, 14.0 lbf-ft)
ABS (ESP(R)) hydraulic unit / control module assembly bolt 9 Nm (0.9 kgf-m, 7.0 lbf-ft)
ABS (ESP(R)) hydraulic unit / control module assembly bracket bolt 25 Nm (2.5 kgf-m, 18.5 lbf-ft)
ABS (ESP(R)) hydraulic unit / control module assembly bracket nut 25 Nm (2.5 kgf-m, 18.5 lbf-ft)

2) Connect ABS (ESP(R)) control module connector and lock it as shown in figure.











3) Connect harness clamp to bracket.
4) Install ECM referring to ECM (Engine Control Module) Removal and Installation ECM (Engine Control Module) Removal and Installation.
5) Connect negative (-) cable at battery.
6) Bleed air from brake system. Service and Repair
7) Check each installed part for fluid leakage.
8) For ESP(R) model, perform Programming and Relearning Sensor Calibration of ESP(R) Components.
9) Perform ABS Hydraulic Unit Operation Check ABS Hydraulic Unit Operation Check or ESP Hydraulic Unit Operation Check ESP(R) Hydraulic Unit Operation Check.
10) Turn ignition switch to OFF position once and then ON position. In this state, make sure that warning / indicator lights are turn off.
11) Check DTC(s) are not stored in hydraulic unit / control module.