2009 SUBARU TRIBECA engine

CC(ETC)(diag)-20
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
CRUISE CONTROL SYSTEM (DIAGNOSTICS)
E: DTC 22 AND 32 VEHICLE SPEED SENSOR
DIAGNOSIS:
Open or short circuit in vehicle speed sensor system.
TROUBLE SYMPTOM:
Cruise control cannot be set. (Cancelled immediately.)
Step Check Yes No
1 CHECK IGNITION SWITCH CIRCUIT
1) Turn the ignition switch to OFF.
2) Disconnect the ECM harness connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between harness con-
nector terminal and chassis ground.
Connector & terminal
(B135) No. 19 (+) — Chassis ground (–):
Is the voltage more than 10 V? Check poor con-
tact of ECM con-
nector.
•Check fuse No.
12 (in fuse & relay
box).
•Check the har-
ness for open or
short circuit
between ignition
switch and ECM.
Step Check Yes No
1CHECK ABS WARNING LIGHT.
1) Turn the ignition switch to ON.
2) After the initial operation of combination
meter is completed, check if the VDC warning
light continues to illuminate.
Does the VDC warning light
continue to illuminate?
Check the
VDCCM. VDC(diag)-2,
Basic Diagnostic
Procedure.>
Go to step 2.
2CHECK LAN COMMUNICATION CIRCUIT
ERROR DISPLAY
Check if the communication error is displayed
on the odo/trip meter in combination meter.
Is the error code «Er xx» dis-
played on odo/trip meter?
Check the LAN
communication cir-
cuit. LAN(diag)-2, Basic
Diagnostic Proce-
dure.>
Replace the ECM.
FU(H6DO)-32,
Engine Control
Module (ECM).>

ET-3
Audio System
ENTERTAINMENT
2. Audio System
A: WIRING DIAGRAM

B: INSPECTION
Symptom Repair order
No power coming in. (No display and no sound from speakers) 1. Check the fuse and power supply for audio.
2. Check the audio ground.
3. Remove the audio and repair them.
A specific speaker does not operate. 1. Check the speaker.
2. Check the output circuit between audio and speaker.
Audio generates noise with engine is r unning. 1. C heck the audio ground.
2. Check the generator.
3. Check the ignition coil.
4. Remove the audio and repair them.
Vo l u m e i s l o w i n A M a n d F M m o d e s o r i n t e r f e r e n c e n o i s e
occurs.
1. Check the antenna.
2. Check the antenna amplifier.
3. Check the noise suppressor.
4. Check the audio ground.
5. Remove the audio and repair them.

ET-6
Navigation System
ENTERTAINMENT
5. Navigation System
A: WIRING DIAGRAM
System.>
B: INSPECTION
1. CHECK THE OPERATION OF THE NAVI-
GATION.
Start the engine, and then inspect that the opening
screen is displayed.
Standard value: The opening screen should be dis-
played.
OK: Normal
NG: When not displayed, check the signal line con-
nector and the audio connector. If there are no
problems in the connecting lines or the lines were
repaired, check that the opening screen is dis-
played.
At this point, if the display is not viewable, the unit is
defective.
2. CHECK THE DVD-ROM.
An opening screen is displayed, then it switches to
the map screen after a while.
When a screen other than the opening screen is
displayed, press the «MAP» key.
Standard value: The map screen should be dis-
played.
OK: Normal
NG: If the map screen is not displayed, check
whether the DVD-ROM is set in the navigation sys-
tem, whether the correct side is set, type of the
DVD-ROM, the existence of any scratches, etc. If
there are no problems on the DVD-ROM, the main
body is defective.
3. CHECK EACH CONNECTION
If there are no problems in the inspections of 1 and
2 above, use “ GRAM, Navigation System.>” of the navigation de-
vice to perform inspection.
4. SWITCHING TO CONNECTION INSPEC-
TION MODE
1) Press the menu key.
2) Select navigation setup from the menu screen.
3) Select navigation information from the naviga-
tion setup screen.
4) Select the vehicle signal from the navigation in-
formation screen.
5) The display will switch to the vehicle signal (for
connection inspection) screen.
6) Check that the display changes according to
each operation
ON: Normal
NG: Check the circuit when the display does not
change.
5. CHECK THE GPS ANTENNA
NOTE:
When checking the GPS antenna, perform the
check operation outdoors to improve the receiver
sensitivity.
Make sure that a value other than “zero” is dis-
played in the GPS item.
OK: Normal
NG: If “No positioning” is displayed, check the GPS
antenna connection.
If the GPS display is red, the main unit could be
faulty.
6. CHECK THE BACK SENSOR
NOTE:
Before starting inspections, inspect the safety
around the rear end of the vehicle.
1) Turn the ignition switch to ON.
2) Pull the parking brake and depress the brake,
then put the gear in reverse.
3) Make sure that “On” is lit in the back sensor item.
Standard Value: “On” should be lit.
On: Normal
NG: If “On” does not light, check the signal line con-
nection. If there are no problems, the unit could be
faulty.
7. CHECK THE ILLUMINATION
1) Turn the lighting switch to level 1.
NOTE:
Make sure that the bright switch is not turned ON at
this time.
2) Make sure that “On” lights in the illumination
item, then the screen fades out.
Standard Value: “On” should be lit.
OK: Normal
NG: If “On” does not light, check the signal line con-
nection. If there are no problems, the unit could be
faulty.
8. CHECK THE PARKING SIGNAL
NOTE:
The side brake signal is normally “OFF”, so operat-
ing it will produce no change.

AC-14
General Description
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
C: CAUTION
1. HFC-134A A/C SYSTEM
•The cooling system components for the HFC-
134a system such as the refrigerant and compres-
sor oil are different from the conventional CFC-12
system components and they are incompatible with
each other.
•Vehicles with the HFC-134a system can be iden-
tified by the label (A) attached to the vehicle.
Before maintenance, check which A/C system is in-
stalled to the vehicle.
2. COMPRESSOR OIL
•HFC-134a compressor oil has no compatibility
with that of CFC-12 system.
•Use only Denso Oil 8, the manufacturer-autho-
rized compressor oil for the HFC-134a system.
•Do not mix multiple compressor oils.
If CFC-12 compressor oil is used in the HFC-134a
A/C system, the compressor may become stuck
due to poor lubrication, or the refrigerant may leak
due to swelling of rubber parts.
On the other hand, if HFC-134a compressor oil is
used in a CFC-12 A/C system, the durability of the
A/C system will be lowered.
•HFC-134a compressor oil is very hygroscopic.
When replacing or installing/removing A/C parts,
immediately isolate the oil from atmosphere using a
plug or tape. In order to avoid moisture, store the oil
in a container with its cap tightly closed.
3. REFRIGERANT
•CFC-12 refrigerant cannot be used in a HFC-
134a A/C system. HFC-134a refrigerant, also can-
not be used in a CFC-12 A/C system.
•If an incorrect or no refrigerant is used, it will re-
sult in poor lubrication and the compressor itself
may be damaged.
4. HANDLING OF REFRIGERANT
•The refrigerant boils at approx. –30°C (22°F).
When handling it, be sure to wear protective gog-
gles and protective gloves. Direct contact of the re-
frigerant with skin may cause frostbite.
If the refrigerant gets into your eye, avoid rubbing
your eyes with your hands. Wash your eye with
plenty of water, and receive medical treatment from
an eye doctor.
•Do not heat a service can. If a service can is di-
rectly heated, or put into boiling water, the inside
pressure will become extremely high. This may
cause the can to explode. If a service can must be
warmed up, use warm water of 40°C (104°F) or less.
•Do not drop or subject a service can to impacts.
(Observe the precautions and operation procedure
described on the refrigerant can.)
•When the engine is running, do not open the
high-pressure valve of the manifold gauge. High-
pressure gas can back-flow resulting in an explo-
sion of the can.
•Provide good ventilation and do not work in a
closed area.
•In order to prevent global warming, avoid releas-
ing HFC-134a into the atmosphere. Using a refrig-
erant recovery system, discharge and recycle the
gas.
AC-01380
(A) Goggles
(B) Gloves
(C) Avoid open flame
(D) No direct heat on container
(E) Do not discharge
(F) Loosen
(A)(B)
(C) (D)
(E)
(F)
AC-00007

AC-19
Refrigerant Pressure with Manifold Gauge Set
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
2. Refrigerant Pressure with Manifold Gauge Set
A: PROCEDURE
1) Place the vehicle in the shade and windless condition.
2) Connect the manifold gauge set.
3) Open all windows and close all doors.
4) Increase the engine to 1,500 rpm.
5) Turn on the A/C switch.
6) Turn the temperature control switch to MAX COOL.
7) Put in RECIRC position.
8) Turn the blower control switch to HI.
9) Read the gauge.
Standard:
Low pressure: 127 — 196 kPa (1.3 — 2.0 kg/cm2, 18 — 28 psi)
High pressure: 1,471 — 1,667 kPa (15 — 17 kg/cm2, 213 — 242 psi)
Ambient temperature: 30 — 35°C (86—95°F)
B: INSPECTION
Symptom Probable cause Repair order
High-pressure side is unusually high.
•Defective condenser fan motor
•Clogged condenser fin
•Too much refrigerant
•Air inside the system
•Defective receiver dryer
•Replace the fan motor.
•Clean the condenser fin.
•Discharge refrigerant.
•Replace the receiver dryer.
•After evacuating again, charge an
appropriate amount of refrigerant.
High-pressure side is unusually low.
•Defective compressor
•Not enough refrigerant
•Clogged expansion valve
•Expansion valve frozen temporarily by
moisture.
•Replace the compressor.
•Check for leaks.
•Replace the expansion valve.
•Fully evacuate the expansion valve.
Low-pressure side is unusually high.
•Defective compressor
•Defective expansion valve
•Too much refrigerant
•Replace the compressor.
•Replace the expansion valve.
•Discharge refrigerant.
Low-pressure side is unusually low.
•Not enough refrigerant
•Clogged expansion valve
•Expansion valve frozen temporarily by
moisture.
•Saturated receiver dryer
•Check for leaks.
•Replace the expansion valve.
•Replace the receiver dryer.

AC-20
Refrigerant Recovery Procedure
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
3. Refrigerant Recovery Proce-
dure
A: PROCEDURE
CAUTION:
•During operation, be sure to wear protective
goggles and protective gloves.
•Connect the refrigerant recovery system with
the manifold gauge set to discharge the refrig-
erant from the A/C system and recycle the gas.
•When recycling the discharged refrigerant,
keep service cans on hand. Because the recov-
ery rate with the recovery system is approx.
90%, service cans are necessary to charge the
refrigerant.
•Follow the detailed operation procedure de-
scribed in the operation manual attached to the
refrigerant recovery system.
1) Perform the compressor oil return operation.

2) Stop the engine.
3) Make sure the valves on low-/high-pressure
sides of manifold gauge set are fully closed.
4) Install the low-/high-pressure hoses to the ser-
vice ports on the low-/high-pressure sides of the
vehicle respectively.
5) Connect the center hose to the refrigerant recov-
ery system.
6) Follow the operation manual to activate the re-
frigerant recovery system.
(A) Low-pressure gauge (Compound pressure
gauge)
(B) High-pressure gauge
(C) Close
AC-00021
(A) (B)
(C)(C)
(A) Low-pressure gauge (Compound pressure
gauge)
(B) High-pressure gauge
(C) Close
(D) Low-pressure side service port
(E) High-pressure side service port
AC-00022
(A) (B)
(C)(C)
(E)(D)

AC-22
Refrigerant Charging Procedure
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
7) Note the low-pressure gauge reading.
8) Leave it at least 5 minutes, and then check the
low-pressure gauge reading for any changes.
If the gauge indicator shows near zero point, it is a
sign of leakage. Check pipe connector points, re-
pair them, and make sure there is no leakage.
9) Follow the can tap operation manual, install to
the refrigerant can.
10) Disconnect the center manifold hose from the
vacuum pump, and connect the hose to the tap
valve.
11) When a 13.6 kg (30 lb) refrigerant container is
used, measure the weight of the refrigerant amount
to use using a scale.
12) Confirm that all the 3 hoses are connected se-
curely to the manifold gauge set.
13) Open the valve on the HFC-134a source.
14) Loosen the center hose connection on the
manifold gauge set (if applicable, press a purge
valve on the manifold gauge set) for a few seconds
to allow the air in the center hose to escape by the
refrigerant pressure.
15) Stop the engine and carefully open the high-
pressure valve.
CAUTION:
Do not open the low-pressure valve.
CAUTION:
Never run the engine while charging from the
high-pressure side.
16) Close the high-pressure valve when the low-
pressure gauge reaches 98 kPa (1 kg/cm2, 14 psi).
Using a leak tester, check the system for leaks.
If any leakage is found after the refrigerant recov-
ery is completed, repair the applicable area.
(A) Tap valve
(B) Center manifold hose
(A) Refrigerant container (HFC-134a)
(B) Scale
AC-00027
AC-00028
(A)
(B)
AC-00029
(A)
(B)
(A) Low-pressure gauge (Compound pressure
gauge)
(B) High-pressure gauge
(C) Close
(A) Low-pressure gauge (Compound pressure
gauge)
(B) High-pressure gauge
(C) Close
(D) Ignition switch OFF
(E) Slowly open
AC-00030
(A) (B)
(C)(C)
AC-00031
(A) (B)
(E)
(D)
(C)

AC-23
Refrigerant Charging Procedure
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
17) After confirming that there are no leaks with the
leak test, charge the required amount of refrigerant.
CAUTION:
Never run the engine while charging from the
high-pressure side.
18) Close the high-pressure valve when;
•the readings of low- / high-pressure gauges be-
come almost equal, after the charging speed is re-
duced,
•the HFC-134a source becomes empty, or the
system is full with the gas.
19) If the HFC-134a source is empty, close the
high-pressure valve, close the valve on the can tap,
and replace the HFC-134a source with a new one
to restart the operation.
20) Confirm that both the low- / high-pressure
valves can be closed. Start the engine with the A/C
switch OFF.
21) Quickly repeat ON-OFF cycles a few times to
prevent initial compressor damage.
22) Set up the vehicle as follows:
•A/C switch ON
•Engine running at 1,500 rpm
•Blower setting speed “HI”, (For models with rear
coolers, also turn the rear cooler fan switch to “HI”)
•Temperature setting to “MAX COOL”
•Air inlet setting to “RECIRC”
•Window open
23) While reading the low-pressure gauge, careful-
ly open the low-pressure valve with the refrigerant
source connected and the service hose purged.
CAUTION:
Never open the high-pressure valve with the en-
gine running. The high-pressure gas will back-
flow resulting in an explosion of the can.
24) Adjust the refrigerant flow to maintain the pres-
sure on the low-pressure side at 276 kPa (2.81 kg/
cm2, 40 psi) max.
25) After the system is fully charged, close the low-
pressure valve.
26) Close the valve on the refrigerant source.
27) Disconnect the hose from the service port, and
install the service port cap.
(A) Low-pressure gauge (Compound pressure
gauge)
(B) High-pressure gauge
(C) Close
AC-00032
AC-00033
(A) (B)
(C)(C)
Refrigerant amount
Refrigerant Minimum Maximum
HFC-134a 840 g (1.85 lb) 900 g (1.98 lb)
AC-00034