2009 SUBARU TRIBECA air condition

CO(H6DO)-8
Radiator Fan System
COOLING
B: RADIATOR FAN CONTROL OUTPUT WAVEFORM
C: INSPECTION
DETECTING CONDITION:
•Engine coolant temperature is more than 95°C (203°F).
•A/C switch is turned OFF.
•Vehicle speed is below 19 km/h (12 MPH).
TROUBLE SYMPTOMS:
Radiator main fan and sub fan do not rotate under the above conditions.
(A) 5 V
Step Check Yes No
1CHECK MAIN FAN RELAY 1.
1) Turn the ignition switch to OFF.
2) Remove the main fan relay 1 from A/C relay
holder.
3) Measure the resistance of terminal in main
fan relay 1 switch.
Is the resistance more than 1
MΩ?
Go to step 2.Replace the main
fan relay 1.
2CHECK MAIN FAN RELAY 1.
1) Connect the battery to terminal of main fan
relay 1 coil.
2) Measure the resistance between terminals
of main fan relay 1 switch.
Is the resistance less than 1
Ω?
Go to step 3.Replace the main
fan relay 1.
3CHECK POWER SUPPLY FOR ECM.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from the ECM.
3) Turn the ignition switch ON.
4) Measure the voltage between ECM termi-
nal and chassis ground.
Connector & terminal
(B136) No. 29 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 4.Repair the power
supply line.
CO-02117
(V)
0
(A)

CO(H6DO)-10
Engine Coolant
COOLING
3. Engine Coolant
A: REPLACEMENT
1. DRAINING OF ENGINE COOLANT
1) Lift-up the vehicle.
2) Remove the under cover.
3) Remove the drain plug to drain engine coolant
into container.
NOTE:
Remove the radiator cap so that engine coolant will
drain faster.
4) Install the drain plug.
2. FILLING OF ENGINE COOLANT
1) Pour cooling system conditioner through the fill-
er neck.
Cooling system protective agent:
COOLING SYSTEM CONDITIONER (Part No.
SOA345001)
2) Pour engine coolant into the radiator up to the
filler neck position.
Coolant level:
Refer to “SPECIFICATION” for the engine
coolant capacity. SPECIFICATION, General Description.>
NOTE:
The SUBARU Genuine Coolant containing anti-
freeze and anti-rust agents is especially made for
SUBARU engine, which has an aluminum crank-
case. Always use SUBARU Genuine Coolant,
since other coolant may cause corrosion.
3) Open the air bleeding valve on the heater hose
side.
4) If the engine coolant level drops, add engine
coolant into radiator up to the filler neck position.
5) When engine coolant has come out from the air
bleeding valve on the heater hose side, close the
valve.
6) Open the air bleeding valve on the radiator side.
7) If the engine coolant level drops, add engine
coolant into radiator up to the filler neck position.
8) When engine coolant has come out from the air
bleeding valve on the radiator side, close the valve.
9) Fill engine coolant into the reservoir tank up to
“FULL” level.
10) Close the radiator cap and start the engine.
Race 5 to 6 times at less than 3,000 rpm, then stop
the engine. (Complete this operation within 40 sec-
onds.)
CO-02192
(1) FULL
(2) LOW
CO-02213
CO-02196
(1)
(2)

EN(H6DO)(diag)-3
Check List for Interview
ENGINE (DIAGNOSTICS)
2. Check List for Interview
A: CHECK
1. CHECK LIST No. 1
Check the following item when problem has occurred.
NOTE:
Use copies of this page for interviewing customers.
Customer’s name Engine No.
Date of sale Fuel brand
Date of repair Odometer readingkm
V. I . N . miles
Weather Fine
Cloudy
Rainy
Snowy
Various/Others:
Ambient air temperature °C (°F)
Hot
Warm
Cool
Cold
Place Highway
Suburbs
Inner city
Uphill
Downhill
Rough road
Others:
Engine temperature Cold
Warming-up
After warming-up
Any temperature
Others:
Engine speed rpm
Ve h i c l e s p e e d k m / h ( M P H )
Driving conditions Not affected
At starting
While idling
At racing
While accelerating
While cruising
While decelerating
While turning (RH/LH)
Headlight ON/ OFFRear defogger ON/ OFF
Blower ON/ OFFAudio ON/ OFF
A/C compressor ON/ OFFCar phone ON/ OFF
Radiator fan ON/ OFF
Fr o nt wi pe r ON/ OFF
Rear wiper ON/ OFF

EN(H6DO)(diag)-5
General Description
ENGINE (DIAGNOSTICS)
3. General Description
A: CAUTION
1) Airbag system wiring harness is routed near the
ECM, main relay and fuel pump relay.
CAUTION:
•All airbag system wiring harnesses and con-
nectors are colored yellow. Do not use electri-
cal test equipment on these circuits.
•Be careful not to damage the airbag system
wiring harness when servicing the ECM, TCM,
main relay and fuel pump relay.
2) Never connect the battery in reverse polarity.
•The ECM will be destroyed instantly.
•The fuel injector and other parts will be dam-
aged.
3) Do not disconnect the battery terminals while the
engine is running.
A large counter electromotive force will be generat-
ed in the generator, and this voltage may damage
electronic parts such as ECM etc.
4) Before disconnecting the connectors of each
sensor and ECM, be sure to turn the ignition switch
to OFF. Perform the clear memory mode after con-
necting the connectors.
5) Poor contact has been identified as a primary
cause of this problem. Measure the voltage or re-
sistance of individual sensor or all electrical control
modules using a tapered pin with a diameter of less
than 0.64 mm (0.025 in). Do not insert the pin more
than 5 mm (0.20 in) into the part.
6) Remove the ECM from the located position after
disconnecting two cables on battery.
Otherwise, the ECM may be damaged.
CAUTION:
When replacing the ECM, be careful not to use
the wrong spec. ECM to avoid any damage on
the fuel injection system.
7) Connectors of each sensor in the engine com-
partment and the harness connectors on the en-
gine side and body side are all designed to be
waterproof. Even if the connectors are waterproof,
take care not to allow water to get into them when
washing the vehicle, or when servicing the vehicle
in rainy weather.
8) Use ECM mounting stud bolts as the grounding
point to chassis when measuring voltage and resis-
tance in the passenger compartment.
9) Use the engine ground terminal or engine as-
sembly as the grounding point to chassis when
measuring the voltage and resistance in engine
compartment.
10) Every MFI-related part is a precision part. Do
not drop them.
11) Observe the following cautions when installing
a radio in MFI equipped models.
CAUTION:
•The antenna must be kept as far apart as pos-
sible from control unit. (The ECM is located un-
der the steering column, inside of the
instrument panel lower trim panel.)
•The antenna feeder must be placed as far apart
as possible from the ECM and MFI harness.
•Carefully adjust the antenna for correct
matching.
•When mounting a large power type radio, pay
special attention to the three items mentioned
above.
•Incorrect installation of the radio may affect
the operation of ECM.
12) Release the pressure in the fuel system before
disconnecting the fuel hose. If engine starts during
this operation, run it until it stops.
13) For the model with ABS, the ABS warning light
may illuminate when performing driving test with
jacked-up or lifted-up condition, but this is not a
system malfunction. The reason for this is the
speed difference between the front and rear
wheels. After diagnosis of engine control system,
perform the ABS memory clear procedure of self-
diagnosis function.
B: INSPECTION
Before performing diagnostics, check the following
item which might affect engine problems.
1. BATTERY
1) Measure the battery voltage and specific gravity
of electrolyte.
Standard voltage: 12 V
Specific gravity: Above 1.260
2) Check the condition of the main and other fuses,
and harnesses and connectors. Also check for
proper grounding.
2. ENGINE GROUND
Make sure the engine ground terminal is properly
connected to engine.
EN-02473

EN(H6DO)(diag)-6
General Description
ENGINE (DIAGNOSTICS)
C: NOTE
1. GENERAL DESCRIPTION
•The on-board diagnostics (OBD) system detects
and indicates a fault in various inputs and outputs
of the complex electronic control. Malfunction indi-
cator light in the combination meter indicates oc-
currence of a fault or trouble.
•Further, against such a failure or sensors as may
disable the drive, the fail-safe function is provided
to ensure the minimal drivability.
•The OBD system incorporated with the vehicles
within this engine family complies with OBD-II Reg-
ulations. The OBD system monitors the compo-
nents and the system malfunction listed in Engine
Section which affects on emissions.
•When the system decides that a malfunction oc-
curs, malfunction indicator light illuminates. At the
same time of the malfunction indicator light illumi-
nation or blinking, a DTC and a freeze frame en-
gine conditions are stored into on-board computer.
•The OBD system stores freeze frame engine
condition data (engine load, engine coolant tem-
perature, fuel trim, engine speed and vehicle
speed, etc.) into on-board computer when it detects
a malfunction first.
•If the OBD system detects the various malfunc-
tions including the fault of fuel trim or misfire, the
OBD system first stores freeze frame engine condi-
tions about fuel trim or misfire.
•When the malfunction does not occur again for
three consecutive driving cycles, malfunction indi-
cator light is turned off, but DTC remains at on-
board computer.
•When troubleshooting the vehicle which com-
plies with OBD-II Regulations, connect the Subaru
Select Monitor or general scan tool to the vehicle.
2. ENGINE AND EMISSION CONTROL SYS-
TEM
•The Multipoint Fuel Injection (MFI) system is a
system that supplies the optimum air-fuel mixture
to the engine for all the various operating condi-
tions through the use of the latest electronic tech-
nology.
With this system fuel, which is pressurized at a con-
stant pressure, is injected into the intake air pas-
sage of the cylinder head. The injection quantity of
fuel is controlled by an intermittent injection system
where the electro-magnetic injection valve (fuel in-
jector) opens only for a short period of time, de-
pending on the quantity of air required for one cycle
of operation. In actual operation, the injection quan-
tity is determined by the duration of an electric
pulse applied to the fuel injector and this permits
simple, yet highly precise metering of the fuel.
•Further, all the operating conditions of the engine
are converted into electric signals, and this results
in additional features of the system, such as large
improved adaptability, easier addition of compen-
sating element etc.
The MFI system also has the following features:
•Reduced emission of harmful exhaust gases.
•Reduced in fuel consumption.
•Increased engine output.
•Superior acceleration and deceleration.
•Superior startability and warm-up perfor-
mance in cold weather since compensation is
made for coolant and intake air temperature.

EN(H6DO)(diag)-23
General Scan Tool
ENGINE (DIAGNOSTICS)
2. MODE $01 (CURRENT POWERTRAIN DIAGNOSTIC DATA)
Refer to data denoting the current operating condition of analog input/output, digital input/output or the pow-
ertrain system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
NOTE:
Refer to general scan tool manufacturer’s operation manual to access generic OBD-II PIDs (MODE $01).
PID Data Unit of measure
01 Number of emission-related powertrain DTC and malfunction indicator light status ON/OFF
03 Fuel system control status—
04 Calculated engine load value%
05 Engine coolant temperature°C
06 Short term fuel trim (Bank 1)%
07 Long term fuel trim (Bank 1)%
08 Short term fuel trim (Bank 2)%
09 Long term fuel trim (Bank 2)%
0B Intake manifold absolute pressure kPa
0C Engine revolutionrpm
0D Vehicle speedkm/h
0E Ignition timing advance°
0F Intake air temperature°C
10 Air flow rate of manifold absolute pressure sensor g/sec
11 Throttle valve opening angle%
13 Check whether oxygen sensor is installed. —
15 Oxygen sensor output voltage (Bank 1 Sensor 2) V
15 Oxygen sensor compensation (Bank 1 Sensor 2) %
19 Oxygen sensor output voltage (Bank 2 Sensor 2) V
1C On-board diagnostic system—
24 Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor (bank 1) V and %
28 Oxygen sensor output voltage and short term fuel trim associated with oxygen sensor (bank 2) V and %
34 A/F sensor lambda value (Bank 1 Sensor 1) —
34 A/F sensor current value (Bank 1 Sensor 1) mA
38 A/F sensor lambda value (Bank 2 Sensor 1) —
38 A/F sensor current value (Bank 2 Sensor 1) mA

EN(H6DO)(diag)-24
General Scan Tool
ENGINE (DIAGNOSTICS)
3. MODE $02 (POWERTRAIN FREEZE FRAME DATA)
Refer to data denoting the operating condition when trouble is detected by on-board diagnosis system.
A list of the support data and PID (Parameter Identification) codes are shown in the following table.
NOTE:
Refer to general scan tool manufacturer’s operation manual to access freeze frame data (MODE $02).
4. MODE $03 (EMISSION-RELATED POWERTRAIN DTC)
Refer to “List of Diagnostic Trouble Code (DTC)” for information about data denoting emission-related pow-
ertrain DTC.
5. MODE $04 (CLEAR/RESET EMISSION-RELATED DIAGNOSTIC INFORMATION)
Refer to the mode used to clear or reset emission-related diagnostic information (OBD-II trouble diagnostic
information).
NOTE:
Refer to general scan tool manufacturer's operation manual to clear or reset emission-related diagnostic in-
formation (MODE $04).
PID Data Unit of measure
02 DTC that caused CARB required freeze frame data storage —
03 Fuel system control status—
04 Calculated engine load value%
05 Engine coolant temperature°C
06 Short term fuel trim (Bank 1)%
07 Long term fuel trim (Bank 1)%
08 Short term fuel trim (Bank 2)%
09 Long term fuel trim (Bank 2)%
0B Intake manifold absolute pressure kPa
0C Engine speedrpm
0D Vehicle speedkm/h
0E Ignition timing advance°
0F Intake air temperature°C
10 Air flow rate of manifold absolute pressure sensor g/sec
11 Throttle valve opening angle%
15 Oxygen sensor output voltage (Bank 1 Sensor 2) V
15 Oxygen sensor compensation (Bank 1 Sensor 2) %
16 Oxygen sensor output voltage (Bank 2 Sensor 2) V
16 Oxygen sensor compensation (Bank 2 Sensor 2) %
1C On-board diagnostic system—

EN(H6DO)(diag)-28
Subaru Select Monitor
ENGINE (DIAGNOSTICS)
Fr o nt ox yg e n ( A / F) s en so r r es is t an ce val ue 2 A / F s en s or r e si st a nc e val u e 2Ω31 Ω
Fr o nt ox yg e n ( A / F) s en so r ou t p ut la m bd a 1 A / F s en s or o ut p ut l am bd a 1 — 1 . 00
Fr o nt ox yg e n ( A / F) s en so r ou t p ut la m bd a 2 A / F s en s or o ut p ut l am bd a 2 — 1 . 00
Fuel tank pressure signal Fuel Tank PressuremmHg, kPa,
inHg or psig
+8.8 mmHg, +1.2 kPa,
+0.4 inHg or +0.17 psig
Fuel temperature signal Fuel Temp. °C or °F +28°C or +82°F
A/F compensation 3 A/F Compensation 3 % –0.16%
A/F learning 3 A/F learning 3 % 0.0%
Throttle motor duty Throttle motor duty % –27%
Throttle power supply voltage Throttle power supply voltage V (Battery voltage)
Sub throttle sensor voltage Sub throttle sensor voltage V 1.50 V
Main throttle sensor voltage Main throttle sensor voltage V 0.64 V
Sub acceleration sensor voltage Sub acceleration sensor voltage V 0.7 V
Main acceleration sensor voltage Main acceleration sensor voltage V 0.7 V
Memory vehicle speed Memory vehicle speed km/h or MPH 0 km/h or 0 MPH
A/F compensation 4 A/F Compensation 4 % 0.31%
A/F learning 4 A/F learning 4 % 0.0%
Fuel level sensor resistance Fuel level resistanceΩ4 — 96 Ω
Oil temperature Oil Temperature °C≥ 85°C (After engine is
warmed-up.)
Oil switching solenoid valve duty R OSV duty R % 17.3%
Oil switching solenoid valve duty L OSV duty L % 17.3%
Oil switching solenoid valve current R OSV current R mA 192 mA
Oil switching solenoid valve current L OSV current L mA 192 mA
Va r i a b l e va l v e l i f t m o d e V V L L i f t M o d e — 1
#1 cylinder roughness monitor #1 cylinder roughness monitor — 0
#2 cylinder roughness monitor #2 cylinder roughness monitor — 0
#3 cylinder roughness monitor #3 cylinder roughness monitor — 0
#4 cylinder roughness monitor #4 cylinder roughness monitor — 0
#5 cylinder roughness monitor #5 cylinder roughness monitor — 0
#6 cylinder roughness monitor #6 cylinder roughness monitor — 0
Te s t m o d e t e r m i n a l Te s t m o d e t e r m i n a l — U c h e c k
Neutral position switch signal Neutral SW — Neutral
Idle switch signal Soft idle SW — In idle
Ignition switch signal Ignition SW — ON input
Pow er s te e r in g sw it c h s ig n al Powe r st ee r i ng S W i n pu t si gn a l — O FF i np u t ( w h e n OF F )
Air conditioning switch signal A/C SW — OFF input (when OFF)
Starter switch signal Starter SW — OFF input
Fr o nt ox yg e n mo n it o r 1 Fr o n t oxy ge n m on i to r 1 — Ri ch
Fr o nt ox yg e n mo n it o r 2 Fr o n t oxy ge n m on i to r 2 — Ri ch
Knocking signal Knock signal — OFF
Crankshaft position sensor signal Crankshaft angle signal — Yes
Camshaft position sensor signal Camshaft angle signal — Yes
Drain valve signal Vent. Solenoid Valve — OFF output (when OFF)
Rear defogger switch signal Rear defogger SW — OFF input (when OFF)
Blower fan switch signal Blower fan SW — OFF input (when OFF)
Light switch signal Light SW — OFF input (when OFF)
Wiper switch signal Wiper SW — OFF input (when OFF)
A/C middle pressure switch signal A/C middle pressure SW — OFF input
A/C compressor relay signal A/C compressor relay output — OFF output
AT c o o r d i n a t e r e t a r d a n g l e d e m a n d s i g n a lAT c o o r d i n a t e r e t a r d a n g l e
demand—Yes
Description Display Unit of measure Note (at idling)