2009 SUBARU TRIBECA wheel

VDC-9
VDC Control Module & Hydraulic Control Unit (VDCCM&H/U)
VEHICLE DYNAMICS CONTROL (VDC)
12) Bleed air from the brake system.
13) Bleed air from RL and RR caliper bodies, and
pressure gauge.
14) Perform ABS sequence control.

15) When the hydraulic unit begins to work, first the
RR side performs decompression, hold and com-
pression, and then the RL side performs decom-
pression, hold and compression.
16) Read values indicated on the pressure gauge
and check if the fluctuation of the values between
decompression and compression meets specifica-
tion. Depress the brake pedal and check that the
kick-back is normal, and tightness is normal.
17) Disconnect the pressure gauge from the RL
and RR caliper bodies.
18) Install the air bleeder screws of RL and RR cal-
iper bodies.
19) Bleed air from the brake system.
2. CHECKING THE HYDRAULIC UNIT ABS
OPERATION WITH THE BRAKE TESTER
1) Set wheels other than the one to measure free
rollers.
2) Prepare for the ABS sequence control operation.

3) Set the front wheels or rear wheels on the brake
tester and set the select lever position to the “N”
range.
4) Operate the brake tester.
5) Perform ABS sequence control.

6) When the hydraulic unit begins to work, check
the following work sequence.
(1) The FL wheel performs decompression,
hold and compression in sequence, and subse-
quently the FR wheel repeats the cycle.
(2) The RR wheel performs decompression,
hold and compression in sequence, and subse-
quently the RL wheel repeats the cycle.
7) Read values indicated on the brake tester and
check if the fluctuation of the values between de-
compression and compression meets specifica-
tion.
8) After the inspection, depress the brake pedal
and check that it is not abnormally hard, and tight-
ness is normal.
3. CHECKING THE HYDRAULIC UNIT VDC
OPERATION USING A PRESSURE GAUGE
1) Lift-up the vehicle and remove the wheel.
2) Remove the air bleeder screws from FL and FR
caliper bodies.
3) Connect two pressure gauges to FL and FR cal-
iper bodies.
CAUTION:
•Use a pressure gauge used exclusively for
brake fluid measurement.
•Do not use a pressure gauge used for the
measuring transmission oil pressure, as the
piston seal may expand and deform.
NOTE:
Wrap sealing tape around the pressure gauge.
4) Bleed air from the pressure gauge.
5) Perform VDC sequence control.

(1) Brake tester
ABS00136
(1)
ABS00137
(1)
Front wheelRear wheel
Initial value2,000 N
(204 kgf, 450 lb)
2,000 N
(204 kgf, 450 lb)
When depressur-
ized
500 N
(51 kgf, 112 lb)
or less
500 N
(51 kgf, 112 lb)
or less
When pressurized
2,000 N
(204 kgf, 450 lb)
or more
2,000 N
(204 kgf, 450 lb)
or more
ABS00134

VDC-10
VDC Control Module & Hydraulic Control Unit (VDCCM&H/U)
VEHICLE DYNAMICS CONTROL (VDC)
6) When the hydraulic unit begins to work, first the
FL side performs compression, hold, and decom-
pression, and then the FR side performs compres-
sion, hold, and decompression.
7) Read values indicated on the pressure gauge
and check if the fluctuation of the values between
decompression and compression meets specifica-
tion. Depress the brake pedal and check that it is
not abnormally hard, and tightness is normal.
8) Disconnect the pressure gauges from FL and FR
caliper bodies.
9) Install the air bleeder screws of FL and FR cali-
per bodies.
10) Remove the air bleeder screws from RL and
RR caliper bodies.
11) Connect two pressure gauges to RL and RR
caliper bodies.
12) Bleed air from RL and RR caliper bodies, and
pressure gauge.
13) Perform VDC sequence control.

14) When the hydraulic unit begins to work, first the
RR side performs compression, hold, and decom-
pression, and then the RL side performs compres-
sion, hold, and decompression.
15) Read the values indicated on the pressure
gauges and check if it is within specification. De-
press the brake pedal and check that it is not abnor-
mally hard, and tightness is normal.
16) Disconnect the pressure gauge from the RL
and RR caliper bodies.
17) Install the air bleeder screws of RL and RR cal-
iper bodies.
18) Bleed air from the brake line.
4. CHECK HYDRAULIC UNIT VDC OPERA-
TION WITH BRAKE TESTER
1) Set wheels other than the one to measure free
rollers.
2) Prepare to operate the VDC sequence control.

3) Set the front wheels or rear wheels on the brake
tester and set the select lever position to the “N”
range.
4) Operate the brake tester.
5) Perform VDC sequence control.

6) When the hydraulic unit begins to work, check
the following work sequence.
(1) The FL wheel performs compression, hold
and decompression in sequence, and subse-
quently the FR wheel repeats the cycle.
(2) The RR wheel performs compression, hold
and decompression in sequence, and subse-
quently the RL wheel repeats the cycle.
7) Read values indicated on the brake tester and
check if the fluctuation of the values between de-
compression and compression meets specifica-
tion.
8) After the inspection, depress the brake pedal
and check that it is not abnormally hard, and tight-
ness is normal.
Front wheelRear wheel
When pressur-
ized
3,000 kPa
(31 kgf/cm2, 441
psi) or more
3,000 kPa
(31 kgf/cm2, 441
psi) or more
When depres-
surized
500 kPa
(5 kgf/cm2, 73 psi)
or less
500 kPa
(5 kgf/cm2, 73 psi)
or less
(1) Brake tester
Front wheelRear wheel
When pressurized
2,000 N
(204 kgf, 450 lb)
or more
2,000 N
(204 kgf, 450 lb)
or more
When depressur-
ized
500 N
(51 kgf, 112 lb)
or less
500 N
(51 kgf, 112 lb)
or less
ABS00136
(1)
ABS00137
(1)

VDC-11
VDC Control Module & Hydraulic Control Unit (VDCCM&H/U)
VEHICLE DYNAMICS CONTROL (VDC)
D: ADJUSTMENT
When the following replacement, removal and in-
stallation are performed, be sure to perform center-
ing of the steering angle sensor and zero point
setting of the yaw rate & G sensor.
•VDCCM&H/U
•Steering angle sensor
•Yaw rate & lateral 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 {Set up mode for Neutral of Steering An-
gle Sensor & Lateral G Sensor 0 point} in the
“Function check sequence” screen. (Follow the
procedures shown in the display.)
4) On the “Brake Control System” display screen,
select {Current 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-
played.
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 problem,
repeat the steps above.

VDC-14
ABS Sequence Control
VEHICLE DYNAMICS CONTROL (VDC)
NOTE:
The control operation starts from point A.
B: SPECIFICATION
1. ABS SEQUENCE CONTROL COMPLETE
CONDITION
When the following conditions develop, the ABS
sequence control stops and ABS operation is re-
turned to the normal control mode.
1) When the speed of at least one wheel reaches
10 km/h (6 MPH).
2) When the brake pedal is released during ABS
sequence control and the stop lamp switch is be-
comes OFF.
3) After completion of ABS sequence control.
4) When a malfunction is detected.
(1) All wheel speed (10) RR decompression valve (18) 1.0 seconds
(2) Ignition key (11) RR hold valve (19) 1.4 seconds
(3) ABS warning light (12) RL decompression valve (20) 0.6 seconds
(4) Stop light switch (13) RL hold valve (21) 0.4 seconds
(5) Valve relay (14) Pump motor (22) Point A
(6) FL decompression valve (15) 1.5 seconds (23) Reset
(7) FL hold valve (16) Light OFF (24) Linear valve 1
(8) FR decompression valve (17) Light ON (25) Linear valve 2
(9) FR hold valve

VDC-17
VDC Sequence Control
VEHICLE DYNAMICS CONTROL (VDC)
NOTE:
The control operation starts from point A.
B: SPECIFICATION
1. CONDITIONS FOR COMPLETION OF
VDC SEQUENCE CONTROL
When the following conditions develop, the VDC
sequence control stops and VDC operation is re-
turned to the normal control mode.
1) When the speed of at least one wheel reaches
10 km/h (6 MPH).
2) When the brake pedal is pressed during se-
quence control and the stop light switch is set to
ON.
3) After completion of VDC sequence control.
4) When a malfunction is detected.
(1) All wheel speed (11) FR compression valve (21) Light OFF
(2) Ignition key (12) RR decompression valve (22) Light ON
(3) ABS warning light (13) RR compression valve (23) 3.4 seconds
(4) VDC warning light (14) RL decompression valve (24) 1 second
(5) VDC operation lamp (CAN output) (15) RL compression valve (25) 1.6 seconds
(6) Stop light switch (16) Pump motor (26) Point A
(7) Valve relay (17) Linear valve 1 (27) Reset
(8) FL decompression valve (18) Linear valve 2 (28) 0.8 seconds
(9) FL compression valve (19) 1.5 seconds (29) 1.2 seconds
(10) FR decompression valve (20) Approx. 3 sec. (30) 0.4 seconds

VDC-19
Steering Angle Sensor
VEHICLE DYNAMICS CONTROL (VDC)
6. Steering Angle Sensor
A: REPLACEMENT
CAUTION:
•Do not perform the removal except when the
replacement.
•When replacing more than three times, re-
place the combination switch as assembly to
protect the threads.
1) Set the steering wheel in a straight-ahead posi-
tion.
2) Disconnect the ground cable from the battery.
3) Remove the airbag module.
ule.>
WARNING:
Always refer to “Airbag System” when perform-
ing the airbag module repair service.

4) Remove the steering wheel.

5) Remove the screws and remove the steering
column lower cover.
6) Remove the two screws securing the steering
column upper cover.
7) Unlock the harness band and disconnect the
connector of the steering angle sensor.
8) Remove the screws which secure the roll con-
nector to steering column.
9) Remove the steering angle sensor from roll con-
nector.
10) Turn the protrusion portion of new steering an-
gle sensor to match the alignment mark of inspec-
tion hole.
CAUTION:
Be careful not to allow foreign matter to enter
into inspection hole.
11) Align the center of roll connector.

12) Apply a thin coat of grease that is supplied with
the new part, to the 4 protruding sections of the
steering angle sensor.
(1) Harness band
(2) Connector
VDC00093
( 1 )
( 2 )
VDC00348
(1) Protrusion portion
(2) Inspection hole
(3) Alignment mark
(1) Apply grease.
VDC00208
VDC00209
(1)
(2)
(3)
ABS00435
(1)

VDC-20
Steering Angle Sensor
VEHICLE DYNAMICS CONTROL (VDC)
13) Align the position of the protrusion and install
roll connector to steering angle sensor.
Tightening torque:
0.5 N·m (0.05 kgf-m, 0.36 ft-lb)
14) Install the roll connector to combination switch.
15) Install the steering wheel.

Tightening torque:
45 N·m (4.6 kgf-m, 33.2 ft-lb)
16) Install the airbag module to the steering wheel.
Module.>
WARNING:
Always refer to “Air Bag System” before per-
forming the service operation.

17) Connect ground cable to battery.
CAUTION:
After completion of installation, adjust the fol-
lowing two positions.
•Positioning to the center of steering angle
sensor
•Positioning of the yaw rate & lateral G sen-
sors to zero.
The above procedure is required for the VDC-
CM to identify vehicle position afterward. For
the setting procedures of the 2 steps above, re-
fer to “VDC Control Module & Hydraulic Control
Unit (VDCCM&H/U)”. MENT, VDC Control Module & Hydraulic Con-
trol Unit (VDCCM&H/U).>
VDC00208
VDC00207

VDC-21
Front ABS Wheel Speed Sensor
VEHICLE DYNAMICS CONTROL (VDC)
7. Front ABS Wheel Speed Sen-
sor
A: REMOVAL
1) Disconnect the ground cable from the battery.
2) Disconnect the ABS wheel speed sensor con-
nector in the engine compartment.
3) Remove the sensor harness from the clip.
4) Remove the clip which secures the sensor har-
ness to the front strut.
5) Remove the front ABS wheel speed sensor from
housing.
CAUTION:
•Be careful not to damage the sensor.
•Do not apply excessive force to the sensor
harness.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
7.5 N·m (0.76 kgf-m, 5.5 ft-lb)
CAUTION:
Be careful not to damage the sensor.
NOTE:
•Check the identification (mark) on the harness to
make sure there is no warpage. (W1 (White))
•Check if the harness is not pulled and does not
come in contact with the suspension or body during
steering wheel effort.
C: INSPECTION
1. CHECK WITH SUBARU SELECT MONI-
TOR
1) Connect the Subaru Select Monitor to the data
link connector.
2) Select {Current Data Display & Save}. Check if
the speed indicated on the display changes in the
same manner as the speedometer reading during
acceleration/deceleration when the steering wheel
is in the straight-ahead position.
3) If the speed indicated on the display does not
change, check the ABS wheel speed sensor. to VDC-22, ABS WHEEL SPEED SENSOR, IN-
SPECTION, Front ABS Wheel Speed Sensor.>
(1) To the front ABS wheel speed sensor connector
(2) Clip
VDC00349
VDC00350
(1)
(2)
DS-00249