Subaru 2009 IMPREZA Service Manual page 2450

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

VEHICLE DYNAMICS CONTROL (VDC)

E: ADJUSTMENT

When the following replacement, removal and in-

stallation are performed, be sure to perform the

centering of the steering angle sensor and zero

point setting of yaw rate & G sensor.

• Steering angle sensor

• Yaw rate & G sensor

• Steering wheel parts (Including airbag)

• Suspension parts

• Wheel alignment adjustment

1) Park the vehicle straight on a level surface. (En-

gine operation in the "P" or "N" range)

2) Check that steering wheel is positioned at the

center. (When the center position is not correct, ad-

just the wheel alignment.)

3) Set the Subaru Select Monitor to the vehicle,

and select the {Set up mode for Neutral of Steering

Angle Sensor & Lateral G Sensor 0 point} in the

«Function Check Sequence» screen. (Follow the

steps on the display.)

4) On «Brake Control System» display, select {Cur-

rent Data Display & Save}, and check that the

steering angle sensor shows "0 deg".

5) When the "0 deg" is not displayed, repeat the

above steps and check that the "0 deg" is dis-

6) Drive the vehicle for 10 minutes, and check that

the ABS and VDC warning light is not illuminated.

7) Check that there is no unnecessary VDC opera-

tion or steering control loss. If there is a malfunc-

tion, repeat the steps above.