2009 SUBARU TRIBECA tire pressure

FS-6
Wheel Alignment
FRONT SUSPENSION
2. Wheel Alignment
A: INSPECTION
Check the following items before performing the wheel alignment measurement.
Check items before measuring wheel alignment:
•Tire inflation pressure
•Uneven wear of RH and LH tires, or difference of sizes
•Tire runout
•Excessive play and wear of ball joint
•Excessive play and wear of tie rod end
•Excessive play of wheel bearing
•Right and left wheel base imbalance
•Deformation and excessive play of steering link
•Deformation and excessive play of suspension parts
Check, adjust and measure the wheel alignment in accordance with the procedures indicated in the figure.
Wheel arch height (front and rear wheels)

↓
Camber (front and rear wheels)

↓
Caster (front wheel)

↓
Steering angle

↓
Fr o nt wh ee l to e –i n

↓
Rear wheel toe–in

↓
Thrust angle

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.

TPM(diag)-2
Basic Diagnostic Procedure
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
1. Basic Diagnostic Procedure
A: PROCEDURE
CAUTION:
Remove foreign matter (dust, water, oil etc.) from the tire pressure monitoring control module con-
nector when removing or installing.
NOTE:
To check harness for broken wires or short circuits, shake trouble spot or connector.
Step Check Yes No
1CHECK PRE-INSPECTION.
1) Check with the user regarding when the
warning light lit or started blinking.
2) Before performing diagnostics, check the
components which might mal-affect tire pres-
sure monitor system. INSPECTION, General Description.>
Is the component that might
affect the tire pressure monitor
system normal?
Go to step 2.Repair or replace
each component.
2CHECK DIAGNOSTIC TROUBLE CODE
(DTC).
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector.
3) Turn the ignition switch to ON and Subaru
Select Monitor to ON.
NOTE:If the communication function of the Subaru Se-
lect Monitor cannot be executed normally,
check the communication circuit. TPM(diag)-11, COMMUNICATION FOR INI-
TIALIZING IMPOSSIBLE, INSPECTION, Sub-
aru Select Monitor.>
4) Read the DTC. OPERATION, Read Diagnostic Trouble Code
(DTC).>
Is DTC displayed? Go to step 4.Go to step 3.
3PERFORM GENERAL DIAGNOSTICS.
1) Inspect using “General Diagnostic Table”.
Ta b l e . >
2) Perform the clear memory mode. TPM(diag)-9, CLEAR MEMORY, OPERATION,
Subaru Select Monitor.>
3) Perform the inspection mode. TPM(diag)-17, Inspection Mode.>
4) Read the DTC. READ DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
Check the DTC is not displayed.
Does the tire pressure warn-
ing light illuminates for about 2
seconds and then foes off after
turning on the ignition switch,
and then go out?
Finish the diagno-
sis.
Check using
“Diagnostic Proce-
dure for TPM”
TPM(diag)-14,
WITHOUT DTC,
INSPECTION,
Subaru Select
Monitor.>
4PERFORM DIAGNOSIS.
1) Refer to “List of Diagnostic Trouble Code
(DTC).”
2) Correct the cause of trouble.
3) Perform the clear memory mode. TPM(diag)-9, CLEAR MEMORY, OPERATION,
Subaru Select Monitor.>
4) Perform the drive test.
Drive the vehicle at a speed more than 40 km/h
(25 MPH) for at least 10 minutes.
5) Read the DTC. READ DIAGNOSTIC TROUBLE CODE (DTC),
OPERATION, Subaru Select Monitor.>
Is DTC displayed? Repeat steps 1 to
4 until DTC is not
shown.
Finish the diagno-
sis.

TPM(diag)-3
General Description
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
2. General Description
A: CAUTION
1. SRS AIRBAG SYSTEM
Airbag system wiring harness is routed near the
TPM control module.
CAUTION:
•Wiring harnesses of all airbag system are yel-
low. Do not use the electrical test equipment on
these circuits.
•Be careful not to damage the airbag system
wiring harness when servicing the tire pressure
monitoring control module.
2. TIRE PRESSURE MONITORING CON-
TROL MODULE
•If the alteration of tire rotation, the installation po-
sition or the replacement of transmitter is per-
formed, ID registration for the transmitter is
required. TRANSMITTER ID, OPERATION, Subaru Select
Monitor.>
•When adjusting tire pressure indoors in winter,
there is a big temperature difference between the
indoor facilities and outside. Once the car is outside
where the temperature is lower, the air pressure in
the tires will drop, causing the tire pressure warning
light to come on, even if the pressure in the tires
was adjusted to standard values indoors. To avoid
this, it is necessary to adjust the tire pressure to the
high side in consideration of the difference in tem-
perature between inside and outside.
B: INSPECTION
Before performing diagnosis, check the following
item which might affect the quality of the tire pres-
sure monitoring system.
1. TIRE
•Inspect that the tire pressure is within the speci-
fication while the tire is cool. (Refer to Tire Caution
Label.)
•Check the tires for damage or the insertion of for-
eign matters.
2. BATTERY
Check that amount of battery fluid, gravity and volt-
age are within the specifications.
Standard voltage: 12 V or more
Specific gravity: 1.260 or more
Te m p e r a -
ture
°C (°F)
Indoor
tempera-
ture
15.5 (60)
Ambient
tempera-
ture
–1 (30) –12 (10) –23 (–10)
Reference
for adjusting
tire pres-
sure
kPa (psi)
Fr o n t 25 0 ( 36 ) 26 5 ( 3 8 ) 2 8 0 ( 4 0)
Rear 240 (35) 255 (37) 270 (39)

TPM(diag)-4
General Description
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
C: PREPARATION TOOL
1. SPECIAL TOOL
2. GENERAL TOOL
ILLUSTRATION TOOL NUMBER DESCRIPTION REMARKS
18482AA010 CARTRIDGE Troubleshooting for electrical system.
22771AA030 SUBARU SELECT
MONITOR KIT
Tr o u b l e s h o o t i n g f o r e l e c t r i c a l s y s t e m .
TOOL NAME REMARKS
Circuit tester Used for measuring resistance, voltage and current.
Tr a n s m i t t e r r e g i s t r a t i o n t o o l U s e d t o r e g i s t e r t h e t r a n s m i t t e r I D . M a n u f a c t u r e r : K e n t - M o o r e
Item number: J45294
ST18482AA010
ST22771AA030

TPM(diag)-5
Electrical Component Location
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
3. Electrical Component Location
A: LOCATION
(1) Tire pressure monitoring control
module
(2) Tire pressure warning light (3) Transmitter 1 — 4
TPM00016
(1)
(2)
(2)
TPM00017TPM00018
(2)
(3)
TPM00004

TPM(diag)-6
Control Module I/O Signal
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
4. Control Module I/O Signal
A: ELECTRICAL SPECIFICATION
Te r m i n a l
No.Measured value Measuring condition Remarks
1Select monitor communication Serial communication —
2Tire pressure warning light output When malfunction occurs, or tire pres-
sure decreases
System failure: blinks
Tire pressure decreases: turns on
4Speed sensor signal While driving (Pulse signal) Change according to vehicle
speed
5Ignition power supply IG switch ON (Battery voltage) —
6Battery power supply Battery voltage Always
8Body integrated unit (Hazard output
signal).—When hazard turns on.
9GND 0 V (Always) Always

TPM(diag)-7
Control Module I/O Signal
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS)
B: WIRING DIAGRAM
(1) Battery power supply (4) Antenna (8) Vehicle speed signal
(2) Ignition power supply (5) Ground (9) Subaru Select Monitor
(3) Tire pressure monitoring control
module
(6) Transmitter (10) Body integrated unit
(7) Combination meter
TPM00005
(6)
(6)
(6)
(6)
(1)
(2)
(7)
(9)
(5)
(8)
(10)
(3)
6
5
4
8
2
1
9
(4)
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