VDC Control Module and Hydraulic Control Unit (VDCCM & H/U): Installation

CAUTION:

When installing the VDCCM & H/U to the bracket - hydraulic unit, make sure that there is no oil adhered to the bolts and the threads of VDCCM & H/U. If the oil is adhered, degrease it carefully before tightening.
Connect the VDCCM & H/U connector securely.

Install the bracket - hydraulic unit and the VDCCM & H/U.

Attach the bracket - hydraulic unit.
Tightening torque:

33 N.m (3.4 kgf-m, 24.3 ft-lb)
Install the VDCCM & H/U to the bracket - hydraulic unit.
Tightening torque:

7.5 N.m (0.8 kgf-m, 5.5 ft-lb)
Connect the VDCCM & H/U connector.

Install each brake pipe.

Preparation tool:

Flare nut wrench

Crowfoot wrench

NOTE: If the work can be performed with the front and back sides reversed, it is also possible to use a 6-point crowfoot wrench.

Tightening torque:

TIGHTENING TORQUE SPECIFICATION

Calculation formula

T1 = 15 N.m (1.5 kgf-m, 11.1 ft-lb) - L1/(L1 + L2)

T2 = 19 N.m (1.9 kgf-m, 14.0 ft-lb) - L1/(L1 + L2)

T: Reading of the torque wrench

L1: Effective length of the torque wrench

L2: Effective length of the crowfoot wrench

NOTE: If the effective length of the tool used is unknown, consult the manufacturer of the tool.

Courtesy of SUBARU OF AMERICA, INC.

(a)	Effective length of the crowfoot wrench (L2)
(b)	Effective length of the torque wrench (L1)
(c)	Center of the open end of crowfoot wrench
(d)	Center of drive square of the torque wrench
(e)	Center of the position where a force is applied by hand

Courtesy of SUBARU OF AMERICA, INC.

Install the air intake boot. Ref. to INTAKE (INDUCTION) (H4DO (EXCEPT FOR HEV))>AIR INTAKE BOOT>REMOVAL .
Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
NOTE: For the hybrid model, connect the battery negative terminal.
Bleed air from the brake line.
- Except for hybrid model: Ref. to BRAKE>AIR BLEEDING>PROCEDURE>BRAKE LINE (EXCEPT FOR HYBRID MODEL) .
- Hybrid model: Ref. to BRAKE>AIR BLEEDING>PROCEDURE>BRAKE LINE (HYBRID MODEL) .
Perform parameter confirmation, selection, and registration.
NOTE:
- When the VDCCM & H/U is replaced with a new part, be sure to perform the selection • registration operation.
- When the registration has not been performed, the DTC code [Selected Parameter] is detected together with the ABS/EBD/VDC warning light illumination.
1. Check that the applied model and grade of the relevant vehicle are included. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U)>MAINTENANCE MODE>VDCCM PARAMETER CHECK .
2. If the applied model and grade of the target vehicle are not included, perform "parameter selection and registration". Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U)>MAINTENANCE MODE>VDCCM PARAMETER SELECTION .
Perform "VDC sensor midpoint setting mode". Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM & H/U)>ADJUSTMENT>VDC SENSOR MIDPOINT SETTING MODE .