2009 SUBARU TRIBECA air condition

AC(diag)-16
Diagnostics for A/C System Malfunction
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Step Check Yes No
1CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse No. 7 from main fuse box.
3) Check the condition of fuse.
Is the fuse blown out? Replace the fuse. Go to step 2.
2CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse No. 22 and No. 31 from
fuse & relay box.
3) Check the condition of fuse.
Is the fuse blown out? Replace the fuse. Go to step 3.
3CHECK A/C CONTROL PANEL POWER CIR-
CUIT.
Measure the voltage between A/C control
panel harness connector terminal and chassis
ground after turning the ignition switch to ON.
Connector & terminal
(i88) No. 1 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 4.Check for open or
short circuit in the
harness between
A/C control panel
and fuse.
4CHECK A/C CONTROL PANEL GROUND
POWER CIRCUIT.
Measure the resistance of harness between A/
C control panel and chassis ground after turn-
ing the ignition switch to OFF.
Connector & terminal
(i88) No. 5 — Chassis ground:
Is the resistance less than 10
Ω?
Go to step 5.Repair the har-
ness for ground
line.
5CHECK AUTO A/C CONTROL MODULE
POWER CIRCUIT.
Measure the voltage between auto A/C control
module connector terminal and chassis ground
after turning the ignition switch to OFF.
Connector & terminal
(B282) No. 1 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 6.Check open or
short circuit of har-
ness between auto
A/C control mod-
ule and fuse.
6CHECK AUTO A/C CONTROL MODULE
POWER CIRCUIT.
Measure the voltage between auto A/C control
module connector terminal and chassis ground
after turning the ignition switch to ACC.
Connector & terminal
(B282) No. 2 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 7.Check open or
short circuit of har-
ness between auto
A/C control mod-
ule and fuse.
7CHECK AUTO A/C CONTROL MODULE
POWER CIRCUIT.
Measure the voltage between auto A/C control
module connector terminal and chassis ground
after turning the ignition switch to ON.
Connector & terminal
(B282) No. 9 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 8.Check open or
short circuit of har-
ness between auto
A/C control mod-
ule and fuse.
8CHECK AUTO A/C CONTROL MODULE
GROUND CIRCUIT.
Measure the resistance of harness between
auto A/C control module and chassis ground.
Connector & terminal
(B282) No. 16 — Chassis ground:
Is the resistance less than 5
Ω?
Go to step 9.Repair the har-
ness for ground
line.

AC(diag)-19
Diagnostics for A/C System Malfunction
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Step Check Yes No
1CHECK FUSE.
1) Remove the fuse No. 22 in fuse & relay box,
and the fuse No. 15 in main fuse box.
2) Check the condition of fuse.
Is any fuse blown out? Replace the fuse. Go to step 2.
2CHECK POWER SUPPLY FOR BLOWER
MOTOR.
1) Turn the ignition switch to ON.
2) Turn the blower switch to ON.
3) Measure the voltage between blower motor
and chassis ground.
Connector & terminal
(B87) No. 2 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 3.Repair the open
circuit of blower
motor power sup-
ply line harness.
3CHECK BLOWER MOTOR RELAY.
1) Turn the ignition switch to OFF.
2) Remove the blower motor relay.
3) Connect the battery positive (+) terminal to
terminal No. 2 of blower motor relay, and nega-
tive (–) terminal to terminal No. 3.
4) Measure the resistance between terminals
No. 1 and No. 5.
Te r m i n a l s
(B419) No. 1 — (B419) No. 5:
Is the resistance less than 1
Ω?
Go to step 4.Replace the
blower motor relay.
4CHECK BLOWER MOTOR.
1) Disconnect the connector from blower
motor.
2) Connect the battery positive (+) terminal to
terminal No. 2 of blower motor connector, and
negative (–) terminal to terminal No. 1.
3) Make sure the blower motor runs.
Does the blower motor run? Go to step 5.Replace the
blower motor.
REMOVAL, Blower
Motor.>
5CHECK POOR CONTACT.
Check poor contact of auto A/C control module
connector.
Is there poor contact in con-
nector?
Repair the con-
nector.
Replace the auto
A/C control mod-
ule. 32, REMOVAL,
Control Unit (Auto
A/C Model).>

AC(diag)-21
Diagnostics for A/C System Malfunction
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Step Check Yes No
1CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse No. 22 from fuse & relay
box.
3) Check the condition of fuse.
Is the fuse blown out? Replace the fuse. Go to step 2.
2CHECK SIGNAL TO A/C RELAY AND A/C
CONTROL MODULE.
1) Disconnect the A/C relay and auto A/C con-
trol module harness connector.
2) Turn the ignition switch to ON.
3) Measure the voltage between A/C relay
connector terminal and chassis ground.
4) Measure the voltage between auto A/C
control module harness connector terminal
and chassis ground.
Connector & terminal
(F27) No. 31 (+) — Chassis ground (–):
(B282) No. 10 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 5.Go to step 3.
3CHECK POWER SUPPLY FOR PRESSURE
SWITCH
1) Turn the ignition switch to OFF.
2) Disconnect the pressure switch harness
connector.
3) Turn the ignition switch to ON.
4) Measure the voltage between pressure
switch harness connector terminal and chassis
ground.
Connector & terminal
(B10) No. 2 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 4.Check for open or
short circuit in the
harness between
fuse and pressure
switch.
4CHECK HARNESS BETWEEN PRESSURE
SWITCH AND A/C RELAY, AUTO A/C CON-
TROL MODULE.
1) Turn the ignition switch to OFF.
2) Measure the resistance of harness
between pressure switch connector and A/C
relay connector.
3) Measure the resistance of harness
between pressure switch connector and auto
A/C control module connector.
Connector & terminal
(B10) No. 1 — (F27) No. 31:
(B10) No. 1 — (B282) No. 10:
Is the resistance less than 1
Ω?
Check the pres-
sure switch. to AC-41,
INSPECTION,
Pressure Switch
(Triple Pressure
Switch).>
Repair the har-
ness.
5CHECK POWER SUPPLY FOR A/C RELAY.
Measure the voltage between A/C relay con-
nector terminal and chassis ground.
Connector & terminal
(F27) No. 28 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 6.Check open or
short circuit of har-
ness between fuse
and A/C relay.
6CHECK A/C RELAY.
Check the A/C relay. TION, Relay and Fuse.>
Is there a malfunction in the A/
C relay?
Replace the A/C
relay.
Go to step 7.

LAN(diag)-5
General Description
LAN SYSTEM (DIAGNOSTICS)
3. General Description
A: CAUTION
1. SRS AIRBAG SYSTEM
Airbag system wiring harness is routed near the
body integrated unit and twisted pair line.
CAUTION:
•All airbag system wiring harness and con-
nectors are colored yellow. Do not use the elec-
trical test equipment on these circuits.
•Be careful not to damage the airbag system
wiring harness when servicing the body inte-
grated unit and LAN system.
•Refer to “Airbag System” when disconnect-
ing the air bag system connector. CAUTION, General Description.>
2. LAN SYSTEM
•Bus line of LAN system is twisted pair line. Be
careful not to bypass or partly unbind the twisted
pair line.
•Do not make clearance between bus lines (CAN
High, CAN Low).
•Difference of bus line length should be within 10
cm (3.94 in).
•Fray near the connector should be within 8 cm
(3.14 in).
•If the characteristics of the twisted pair line are
changed, it may extremely weaken against noise.
•When repairing the harness, connect the wires
using soldering and protect it with insulating tape
etc.
B: INSPECTION
Before performing diagnostics, check the following
item which might affect body integrated unit mal-
functions.
1) Measure the battery voltage and check electro-
lyte.
Standard voltage: 12 V or more
Specific gravity: Above 1.260
2) Check the fuse condition.
Make sure that ampere of the fuse is setting value,
and it is not blown out.
3) Check the connecting condition of harness and
harness connector.
4) Confirm settings of body integrated unit are cor-
responded to vehicle equipment. ag)-19, REGISTRATION BODY INTEGRATED
UNIT (EQUIPMENT SETTING), OPERATION,
Subaru Select Monitor.>
5) Confirm setting are corresponded to vehicle
equipment by function setting (ECM customizing)
of body integrated unit. FUNCTION SETTING (ECM CUSTOMIZING), OP-
ERATION, Subaru Select Monitor.>
6) Confirm “Factory initial setting” of body integrat-
ed unit registrations is “Market”.
7) Confirm key illumination does not blink with igni-
tion switch turned to ON.
(A) Bypass wire connection
LAN00081
(A)
(A) Soldering and protection with insulating tape
LAN00080
(A)

LAN(diag)-13
Subaru Select Monitor
LAN SYSTEM (DIAGNOSTICS)
2. READ CURRENT DATA
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 {Integ. Unit mode} and press the [YES] key.
3) On the «Integ. unit mode failure diag» display screen, select the {Current Data Display & Save} and press
the [YES] key.
4) On the «Current Data Display & Save» display screen, select the {12 Data Display} and press the [YES]
key.
5) Using the scroll key, scroll the display screen up or down until the desired data is shown.
•A support list contains both of analog and digital data, and they are shown in the following table.
3. DISPLAY OF ANALOG DATA
Items to be displayed Unit of measure Description Note
BATT Voltage (Control) 10 — 15 VBody integrated unit input
valueAlways
BATT Voltage (BACK UP) 10 — 15 VBody integrated unit input
valueAlways
IG power supply voltage 10 — 15 VBody integrated unit input
valueIgnition switch ON
ACC voltage 10 — 15 VBody integrated unit input
valueIgnition switch ACC
Illumination VR voltage 0 — 5 VBody integrated unit out-
put valueSmall light switch ON
Illumi. output d-ratio 0 — 100%Body integrated unit input
value
Small light ON
Illumination volume is other than bright.
Ambient temp sensor V 0 — 5 VBody integrated unit out-
put valueIgnition switch ON
Ambient temperature –40 — 87.5°CBody integrated unit out-
put valueIgnition switch ON
Fuel level voltage 0 — 8 VBody integrated unit input
valueIgnition switch ON
Fuel level resistance 0 — 102.3 ΩBody integrated unit input
valueIgnition switch ON
key-lock solenoid V 6 — 12 VBody integrated unit out-
put value
Other than parking range
Ignition ON
number of regist. 0 — 4 Key No. to register
Fr o nt W he e l S p ee d km / h C A N d a t a i np u t val u e R ec ep t io n f r o m V DC u ni t
VDC/ABS latest f-codeDTC display (Tempo-
rarily)CAN data input value
It is normal when DTC is not been input
even if this code is displayed.
Reception from VDC
Blower fan steps 0 — 2 levels CAN data input value0: OFF, 1: Low, 2: 2 levels or more
Reception from air conditioner ECM
Fuel level resistance2 0 — 102.3 ΩCAN data output value Reception from body integrated unit
Fuel consumption cc/s CAN data input valueReception from ECM and transmission to
center monitor
Coolant Temp. 40 — 130°C CAN data input value Reception from ECM
Ve h i c l e l a t e r a l Gm/s2CAN data input value Reception from VDC unit
SPORT Shift Stages 0 — 7 levels CAN data input value
(0: Light OFF; 1 — 5: Gear display; 6: Fail; 7:
AT F t e m p e r a t u r e H i g h / L o w )
Reception from TCM
Shift Position 0 — 7 levels CAN data input value
0: 1; 1: 2; 2: 3; 3: 4; 4: D; 5: N; 6: R; 7: P shift
position (There is no 8 input.)
Reception from TCM
Off delay timeOFF, Short, Normal,
Long
Body integrated unit set-
ting itemsCustomize setting
Auto lock time20, 30, 40, 50, 60 sec-
onds
Body integrated unit set-
ting itemsCustomize setting

LAN(diag)-35
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
B: DIAGNOSTIC TROUBLE CODE (DTC) IS NOT STORED
DIAGNOSIS:
Defective combination meter
TROUBLE SYMPTOM:
•Communication error display in odo/trip meter is not cleared.
•“No trouble code” is displayed on Subaru Select Monitor.
NOTE:
If DTC is not displayed on Subaru Select Monitor, LAN communication System should be OK.
C: DTC B0100 INTEG. UNIT SYSTEM ERROR
DTC DETECTING CONDITION:
System error in body integrated unit
TROUBLE SYMPTOM:
•Check light comes on in the combination meter, and displays communication error display “Er IU”.
•LAN communication immobilizer function may not be executed normally.
Step Check Yes No
1CHECK COMMUNICATION ERROR DIS-
PLAY WITH COMBINATION METER.
Tu r n t h e i g n i t i o n s w i t c h t o O N .
Is communication error dis-
played?
Inspect the DTC. Go to step 2.
2CHECK COMBINATION METER.
Perfor m the self-diagnosis of combination
meter.
Is combination meter OK? Go to step 3.Replace the com-
bination meter.
Combination
Meter.>
3CHECK THE BODY INTEGRATED UNIT.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of “body integrated unit data
received”.
Is “Yes” displayed? Go to step 4.Replace the body
integrated unit.
Body Integrated
Unit.>
4CHECK THE BODY INTEGRATED UNIT.
1) Display the current data of ECM using Sub-
aru Select Monitor.
2) Check data of “body Integrated unit counter
update”.
Is “Yes” displayed? Repair the poor
contact of connec-
tor.
Replace the body
integrated unit.
Body Integrated
Unit.>
Step Check Yes No
1CHECK ALL DTCS.Is DTC concerning ECM dis-
played?
Go to step 2.Replace the body
integrated unit.
Body Integrated
Unit.>
2CHECK DTC CONCERNING ECM.Is output DTC on ECM con-
cerning CAN communication
error?
Replace the body
integrated unit.
Body Integrated
Unit.>
Per fo r m th e di ag -
nosis according to
DTC concerning
ECM.

LAN(diag)-40
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
F: DTC B0103 IGNITION POWER FAILURE
DTC DETECTING CONDITION:
IGN power supply circuit is open or shorted.
TROUBLE SYMPTOM:
Symptoms such as illuminating the malfunction indicator light or high speed CAN error display “Er HC” may
occur.
WIRING DIAGRAM:
LAN00150
BODY INTEGRATED UNIT
A1A24
MICRO COMPUTER
B1A8
B72
IGNITION SWITCH
1B
2
4
ACC
ACCOFF
IG
ON
B52B:
34128910 1112 13 14 15 16 17 18 19 20 21 22 23 24567
B280B:
B281C:
567821943102422 2325111213141526 27281617181920 21
5467821931022 23111213141524 25 26 2716171828 29192021 30
i84A:
1234567891011121314151617181920212223242526272829303132333435
12345678910 11 12 19 2013 14 15 16 17 18
i5A:
ACC POWER SUPPLY
B52i5A:B:
E
MAIN SBF-11
FB-28 NO.31
BATTERY
IG POWER SUPPLY
i84
B280B:
A:
B281C:
A21C9B22C8
EE
FB-37 NO.12
B72
134562
FUSE &RELAY BOX
Step Check Yes No
1CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 12).
Is the fuse blown out? Replace the fuse
(No. 12). If the
replaced fuse has
blown out easily,
repair the short cir-
cuit of harness
between fuse (No.
12) and body inte-
grated unit.
Go to step 2.

LAN(diag)-42
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
LAN SYSTEM (DIAGNOSTICS)
G: DTC B0104 ACC POWER FAILURE
DTC DETECTING CONDITION:
ACC power supply circuit is open or shorted.
TROUBLE SYMPTOM:
Rear wiper may not operate at ACC position.
WIRING DIAGRAM:
LAN00150
BODY INTEGRATED UNIT
A1A24
MICRO COMPUTER
B1A8
B72
IGNITION SWITCH
1B
2
4
ACC
ACCOFF
IG
ON
B52B:
34128910 1112 13 14 15 16 17 18 19 20 21 22 23 24567
B280B:
B281C:
567821943102422 2325111213141526 27281617181920 21
5467821931022 23111213141524 25 26 2716171828 29192021 30
i84A:
1234567891011121314151617181920212223242526272829303132333435
12345678910 11 12 19 2013 14 15 16 17 18
i5A:
ACC POWER SUPPLY
B52i5A:B:
E
MAIN SBF-11
FB-28 NO.31
BATTERY
IG POWER SUPPLY
i84
B280B:
A:
B281C:
A21C9B22C8
EE
FB-37 NO.12
B72
134562
FUSE &RELAY BOX
Step Check Yes No
1CHECK FUSE.
1) Turn the ignition switch to OFF.
2) Remove the fuse (No. 31).
Is the fuse blown out? Replace the fuse
(No. 31). If the
replaced fuse has
blown out easily,
repair the short cir-
cuit of harness
between fuse (No.
31) and body inte-
grated unit.
Go to step 2.