2009 SUBARU TRIBECA stop start

BR-28
Brake Booster
BRAKE
Air tightness check
Start the engine, and idle it for 1 to 2 minutes, then
turn it OFF. Depress the brake pedal several times
applying the normal pedal force. The pedal stroke
should be the longest at the 1st depression, and it
should become shorter at each successive depres-
sion. If no change occurs in the pedal height when
pressed, the brake booster is faulty.
NOTE:
•In case of defective operation, inspect the condi-
tion of the check valve and vacuum hose as well.
•Replace them if faulty, and perform the test
again.
•If the defective condition is not improved, check
accurately using a gauge.
Operation check
1) While the engine is OFF, depress the brake ped-
al several times applying the same pedal force, to
check for a change in pedal height.
2) With the brake pedal pressed, start the engine.
3) As the engine starts, the brake pedal should
move slowly toward the floor. If the pedal height
does not change, the brake booster is faulty.
NOTE:
If faulty, perform an accurate check with a gauge.
Loaded air tightness check
Depress the brake pedal while the engine is run-
ning, and turn the engine OFF while the pedal is de-
pressed. Keep the pedal depressed for 30
seconds. If the pedal height does not change, the
function of brake booster is normal. If the pedal
height increases, it is faulty.
NOTE:
If faulty, perform an accurate check with a gauge.
2. OPERATION CHECK (WITH GAUGE)
CAUTION:
When checking operation, be sure to apply the
parking brake securely.
Check with gauge
Connect the gauge as shown in the figure. After
bleeding air from the pressure gauge, perform the
checks.
(1) Normal
(2) Not OK
(3) 1st
(4) 2nd
(5) 3rd
(1) When engine is stopped
(2) When engine is started
(1)
(3)(4)
(5)
(2)
BR-00080
(1) (2)
BR-00081
(1) Pressure gauge
(2) Vacuum gauge
(3) Adapter hose
(4) Vacuum hose
(5) Pedal force gauge
(1) (2)
(3) (4) (5)
BR-00082

BR-29
Brake Booster
BRAKE
Air tightness check
1) Start the engine and keep it running until vacu-
um pressure indicates point A of the vacuum gage
= 66. 7 kPa (500 mmHg, 19. 69 inHg). Do not de-
press the brake pedal at this time.
2) Stop the engine and check the gauge. If the vac-
uum pressure drop within 15 seconds after stop-
ping the engine is less than 3. 3 kPa (25 mmHg, 0.
98 inHg), the function of brake booster is normal.
If faulty, the cause may be one of the following.
•Check valve malfunction
•Leak from vacuum hose
•Leak from shell joint section or stud bolt welded
section
•Damaged diaphragm
•Leak from valve body seal and bearing section
•Leak from plate and seal assembly section
•Leak from poppet valve assembly section
Loaded air tightness check
1) Start the engine and depress the brake pedal
with a pedal force of 196 N (20 kgf, 44 lb). Keep the
engine running and keep the pedal pressed until a
vacuum of point B = 66. 7 kPa (500 mmHg, 19. 69
inHg) is indicated on the vacuum gauge.
2) Stop the engine and check the vacuum gauge.
If the vacuum pressure drop within 15 seconds af-
ter stopping the engine is less than 3.3 kPa (25
mmHg, 0.98 inHg), the function of brake booster is
normal.
If defective, refer to “AIR TIGHTNESS CHECK”.

3) If the brake booster is faulty, replace the it with a
new part.
Lack of boost action check
Turn the engine OFF, and set the value of the vac-
uum gauge to “0”. Then, check the fluid pressure
when the brake pedal is depressed. The pressure
must be greater than the specification listed.
Boosting action check
Set the vacuum gauge reading to 66. 7 kPa (500
mmHg, 19. 69 inHg) with the engine running. Then,
check the fluid pressure when the brake pedal is
depressed. The pressure must be greater than the
specification listed.
(1) Pressure gauge
(2) Vacuum gauge
(1) Pressure gauge
(2) Vacuum gauge
(3) Pedal force gauge
(4) Depressed
(1) (2)A
BR-00083
B(1) (2)
(3)
(4)
BR-00084
Brake pedal operation force
N (kgf, lb)
147
(15, 33)
294
(30, 66)
Fluid pressure
kPa (kgf/cm2, psi)
590
(6, 86)
1,654
(17, 240)
Brake pedal operation force
N (kgf, lb)
147
(15, 33)
294
(30, 66)
Fluid pressure
kPa (kgf/cm2, psi)
38,539
(87, 1,238)
15,373
(157, 2,229)

BVC(diag)-3
Check List for Interview
BRAKE VACUUM CONTROL (BVC) (DIAGNOSTICS)
2. Check List for Interview
A: CHECK
Check the following item about the vehicle’s state.
1. STATUS OF THE ERROR DISPLAY
An error is displayed
in odo/trip meter. Always
Sometimes
Only once
Does not come on
• When/How long does it come on?
Ignition key position LOCK
ACC
ON (before starting engine)
START
ON (after starting engine, while engine is running)
ON (after starting engine, engine is stop)
Timing Immediately after turning the ignition switch to ON
Immediately after turning the ignition switch to START
Accelerating — km/h
— MPH
While traveling at a constant speedkm/h MPH
Reducing speed — km/h
— MPH

PS-48
Power Steering Fluid
POWER ASSISTED SYSTEM (POWER STEERING)
9. Power Steering Fluid
A: SPECIFICATION
B: INSPECTION
1) Check the power steering fluid for deterioration
or contamination. If the fluid is highly deteriorated
or contaminated, drain it and refill with new fluid.
2) Check the joints and units for oil leakage. If any
oil leaks are found, repair or replace the applicable
part.
3) Inspect the fluid level of reservoir tank with vehi-
cle on level surface and engine stopped.
If the level is at “MIN. ” point or below, add fluid to
keep the level in the specified range of the indica-
tor. If at “MAX. ” point or above, drain fluid by using
a syringe or the like.
(1) Check at power steering fluid temperature
20°C (68°F); read the fluid level on the “COLD”
side.
(2) Check at power steering fluid temperature
80°C (176°F); read the fluid level on the “HOT”
side.
C: REPLACEMENT
1) Lift-up the vehicle.
2) Remove the crossmember support.
3) Remove the pipe joint in the center of gearbox,
and connect the vinyl hose to the pipe and joint.
Wipe fluid off while turning the steering wheel.
4) Add the specified fluid to reservoir tank at “MAX”
level.
5) Continue to turn the steering wheel slowly from
lock to lock until the bubbles stop appearing on oil
surface while keeping the fluid at the level in the
Step 4).
6) If the steering wheel is turned in a low fluid level
condition, air will be sucked into the pipe. If sucked,
leave it about half an hour and then do the step 5)
again.
7) Start the engine and let it idle.
8) Continue to turn the steering wheel slowly from
lock to lock again until the bubbles stop appearing
on oil surface while keeping the fluid at the level in
Step 4).
Normally bubbles will stop appearing after turning
the steering wheel from lock to lock three times.
9) In case bubbles do not stop appearing in the
tank, leave it about half an hour and then do the
step 4) all over again.
10) Lower the vehicle, and then idle the engine.
11) Continue to turn the steering wheel from lock to
lock until the bubbles stop appearing and change of
the fluid level is within 3 mm (0.12 in).
12) In case the following happens, leave it about
half an hour and then do step 8) to 11) again.
(1) The fluid level changes over 3 mm (0.12 in).
(2) Bubbles remain on the upper surface of the
fluid.
(3) Grinding noise is generated from oil pump.
13) Check the fluid leakage after turning steering
wheel from lock to lock with engine running.
Recommended power steering fluid Manufacturer
AT F D E X R O N I I I o r e q u i v a l e n t
B.P.
CALTEX
CASTROL
MOBIL
SHELL
TEXACO
PS-00745
HOT MAXHOT MAINCOLD MAXCOLD MAIN

PS-49
General Diagnostic Table
POWER ASSISTED SYSTEM (POWER STEERING)
10.General Diagnostic Table
A: INSPECTION
*1 If the tires or wheels are wider than standard, the load to the power steering system is increased. Accordingly, in a condition,
for example before fluid warms-up, relief valve may work before reaching maximum turning angle. In this case, steering effort
may be heavy. When the measured hydraulic pressure is normal, there is no abnormal thing. *2 In cold weather, flow resistance will increase due to the cold hydraulic fluid, and steering effort will be heavier. After warming-up en-
gine, turn the steering wheel from stop to stop several times to warm-up fluid. If steering effort reduces normally, function is normal. *3 I n c o l d w e a t h e r o r w i t h i n s u f f i c i e n t w a r m – u p o f t h e e n g i n e , s t e e r i n g e f f o r t m a y b e h e a v y d u e t o e x c e s s i v e d r o p o f i d l e r p m w h en
turning the steering wheel. In this case, start the vehicle with increasing engine speed than usual. If steering effort reduces nor-
mally, function is normal.
Tr o u b l e P o s s i b l e c a u s e C o r r e c t i v e a c t i o n
•Steering effort is heavy in all
ranges.
•Steering effort is heavy at
stand still.
•Steering wheel vibrates
when turning.
1. Pulley belt
•Unequal length of pulley belts
•Contact with oil or grease
•Looseness or damage of the pulley belt
•Poor uniformity of the pulley belt cross section
•Pulley belt touches to pulley bottom
•Poor revolution of pulleys (except oil pump pulley)
•Poor revolution of oil pump pulley
Adjust or replace.
2. Tire and wheel
•Improper tire out of specifications*1
•Improper wheel out of specifications*1
•Tires not properly inflated
Replace or reinflate.
3. Fluid
•Low fluid level
•Air entry in fluid
•Entry of dust in the fluid
•Fluid deterioration
•Inadequate warm–up of fluid *2
Refill, bleed air,
replace or instruct cus-
tomer.
4. Idle speed
•Lower idle speed
•Excessive drop of idle speed at start or when turning the steering
wheel *3
Adjust or instruct cus-
tomer.
5. Measure the hydraulic pressure. PRESSURE, INSPECTION, Oil Pump.>
Replace the problem
parts.
6. Measure the steering wheel effort. OF STEERING EFFORT, INSPECTION, General Diagnostic Table.>Adjust or replace.
•Vehicle leads to one side or
the other.
•Returning force of steering
wheel to center is poor.
•Steering wheel vibrates
when turning.
1. Fluid line
•Folded hose
•Flattened pipe
Correct or replace.
2. Tire and wheel
•Flat tire
•Mixed use of different tires
•Mixed use of different wheels
•Abnormal wear of tire
•Unequal tread remaining
•Unequal pressure of tire
Adjust, fix or replace.
3. Front alignment
•Improper or unequal caster
•Improper or unequal toe–in
•Loose suspension connections
Adjust or retighten.
4. Others
•Damaged joint assembly
•Unbalanced height
•Unbalanced weight
Replace, adjust or
instruct customer.
5. Measure the steering wheel effort. OF STEERING EFFORT, INSPECTION, General Diagnostic Table.>Adjust or replace.

PS-52
General Diagnostic Table
POWER ASSISTED SYSTEM (POWER STEERING)
2. MEASUREMENT OF STEERING EFFORT
Step Check Yes No
1CHECK STEERING EFFORT.
1) Stop the vehicle on paved road.
2) Start the engine.
3) Run the engine at idle.
4) Install a spring scale on the steering wheel.
5) Pull the spring scale at a right angle to the
steering wheel, and measure both right and left
steering wheel efforts.
NOTE:When turning the steering more quickly than
necessary from a direction to the other direction
at an engine speed over 2,000 rpm, steering ef-
fort may be heavy. This is caused by flow char-
acteristic of the fluid in the oil pump and is not a
defect.
Is the steering effort less than
29.4 N (3.0 kgf, 6.6 lb)?
Go to step 2.Adjust the back-
lash.
2CHECK STEERING EFFORT.
1) Stop the engine.
2) Pull the spring scale at a right angle to the
steering wheel, and measure both right and left
steering wheel efforts.
Is the steering effort less than
294.2 N (30 kgf, 66.2 lb)?
Go to step 3.Perform the
adjustment.
3CHECK STEERING WHEEL EFFORT.
1) Remove the universal joint.
2) Measure the steering wheel effort.
Is steering effort less than 2.26
N (0.23 kgf, 0.51 lb)?
Go to step 4.Check, adjust and
replace if neces-
sary.
4CHECK STEERING WHEEL EFFORT.
Measure the steering wheel effort.
Is the difference of steering
effort between right and left
less than 20%?
Go to step 5.Check, adjust and
replace if neces-
sary.
5CHECK UNIVERSAL JOINT.
Measure the swing torque of the joint (yoke of
steering column side). INSPECTION, Universal Joint.>
Is the swing torque of the uni-
versal joint less than 7.3 N
(0.74 kgf, 1.64 lb)?
Go to step 6.Replace with a
new part.
6CHECK UNIVERSAL JOINT.
Measure the swing torque of the joint (yoke of
gearbox side). Universal Joint.>
Is the swing torque of the uni-
versal joint less than 3.8 N
(0.39 kgf, 0.86 lb)?
Go to step 7.Replace with a
new part.
7CHECK FRONT WHEEL.
Check the front wheels.
Does the front wheels have
unsteady revolution or rattling,
or does the brake drag?
Inspect, readjust
and replace if nec-
essary.
Go to step 8.
8CHECK TIE–ROD ENDS.
Remove the tie–rod ends.
If the tie-rod ends of suspen-
sion have unsteady revolution
or rattling?
Inspect and
replace if neces-
sary.
Go to step 9.
9BALL JOINT CHECK.
Remove the ball joint.
If the ball joints of suspension
have unsteady revolution or
rattling?
Inspect and
replace if neces-
sary.
Go to step 10.
10 CHECK GEARBOX.
Measure the rotating of gearbox.
GEARBOX, INSPECTION, Steering Gear-
box.>
Is the rotating resistance of
steering gearbox less than
10.5 N (1.1 kgf, 2.4 lb)? Is the
difference between right and
left sides less than 20%?
Go to step 11.Readjust the back-
lash, and if ineffec-
tive, replace the
faulty par ts.
11 CHECK GEARBOX.
Measure the sliding of gearbox.
Gearbox.>
Is the sliding resistance of
steering gearbox less than 400
N (41 kgf, 90 lb)? Is the differ-
ence between the right and left
sliding resistance less than
20%?
Steering effort is
normal.
Readjust the back-
lash, and if ineffec-
tive, replace the
faulty par ts.

TPM(diag)-10
Subaru Select Monitor
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
2) Connect the Subaru Select Monitor, on the
«Main Menu» display screen, select the {2. Each
System Check} and press the [YES] key.
3) On the «System Selection Menu» display
screen, select the {Tire Pressure Monitor} and
press the [YES] key.
4) Press the [YES] key after the {Tire Pressure
Monitor} is displayed.
5) On the «Tire Pressure Monitor Diagnosis» dis-
play screen, select the {Transmitter ID regist con-
firm} and press the [YES] key.
6) {When ID registration mode execute, Registered
ID is deleted Proceed?} is displayed then press the
[YES] key.
7) Touch the transmitter registration tool to the side
wall area near the air valve on the front left tire, and
press the switch. The transmitter ID is sent to the
tire pressure monitoring control module. (At that
time, the tire pressure warning light blinks to con-
firm that the registration has started.)
NOTE:
•Register the transmitter ID in the order of Left
Front → Right Front → Right Rear → Left Rear.
•The transmitter registration tool is used by touch-
ing the side wall area near the transmitter.
•When registration of each tire is completed, the
hazard light will blink and {ID registration complet-
ed} is displayed on the Select Monitor screen.
•If registration procedure stop in the halfway (turn-
ing ignition switch to OFF, wrong registration order,
etc), proceed from step 5)
8) When ID registration is completed, the tire pres-
sure warning light remains lit for approximately 2
seconds, to end the registration. Switch to the
screen displaying the transmitter ID on the Subaru
Select Monitor display. DISPLAY TRANSMITTER (ID)., OPERATION,
Subaru Select Monitor.>
9) Check the transmitter ID that was registered,
then perform a driving test. PROCEDURE, Inspection Mode.>
5. DISPLAY TRANSMITTER (ID).
1) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display
screen, select the {Tire Pressure Monitor} and
press the [YES] key.
3) Press the [YES] key after the {Tire Pressure
Monitor} is displayed.
4) On the «Tire Pressure Monitor Diagnosis» dis-
play screen, select the {Transmitter ID regist con-
firm} and press the [YES] key.
5) Select {Transmitter ID Data Monitor} and press
the [YES] key to display the transmitter ID.
(1) Air valve (transmitter)
(2) Transmitter registration tool
(1)
(2)
TPM00006

VDC(diag)-4
Check List for Interview
VEHICLE DYNAMICS CONTROL (VDC) (DIAGNOSTICS)
2. Check List for Interview
A: CHECK
Check the following item about the vehicle’s state.
1. STATE OF ABS WARNING LIGHT
ABS warning light
come on. Always
Sometimes
Only once
Does not come on
• When/How long does it come on?
Ignition key position LOCK
ACC
ON (before starting engine)
START
ON (after starting engine, while engine is running)
ON (after starting engine, engine is stop)
Timing Immediately after turning the ignition switch to ON
Immediately after turning the ignition switch to START
Accelerating — km/h
— MPH
While traveling at a constant speedkm/h MPH
Reducing speed — km/h
— MPH
When turning to the rightSteering angle: deg
Steering time: Sec.
When turning to the leftSteering angle: deg
Steering time: Sec.
When operating other electrical parts
• Part name:
• Operating condition: