SUBARU TRIBECA 2009 1.G Service Workshop Manual

EN(H6DO)(diag)-290
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
1CHECK OUTPUT SIGNAL OF ECM.
1) Turn the ignition switch to ON.
2) Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B137) No. 29 (+) — Chassis ground (–):
Is the voltage more than 10 V? Even if the mal-
function indicator
light illuminates,
the circuit has
returned to a nor-
mal condition at
this time.
Go to step 2.
2CHECK HARNESS BETWEEN PURGE CON-
TROL SOLENOID VALVE AND ECM CON-
NECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from purge con-
trol solenoid valve and ECM.
3) Measure the resistance of harness
between purge control solenoid valve connec-
tor and engine ground.
Connector & terminal
(E4) No. 2 — Engine ground:
Is the resistance more than 1
MΩ?
Go to step 3.Repair the ground
short circuit of har-
ness between
ECM and purge
control solenoid
valve connector.
3CHECK HARNESS BETWEEN PURGE CON-
TROL SOLENOID VALVE AND ECM CON-
NECTOR.
Measure the resistance of harness between
ECM and purge control solenoid valve.
Connector & terminal
(B137) No. 29 — (E4) No. 2:
Is the resistance less than 1
Ω?
Go to step 4.Repair the open
circuit of harness
between ECM and
purge control sole-
noid valve connec-
tor.
NOTE:In this case, repair
the following item:
•Open circuit
of harness be-
tween ECM and
purge control
solenoid valve
connector
•Poor contact
of coupling con-
nector
4CHECK PURGE CONTROL SOLENOID
VALVE.
1) Remove the purge control solenoid valve.
2) Measure the resistance between purge
control solenoid valve terminals.
Te r m i n a l s
No. 1 — No. 2:
Is the resistance between 10
— 100 Ω?
Go to step 5.Replace the purge
control solenoid
valve. EC(H6DO)-6,
Purge Control
Solenoid Valve.>
5CHECK POWER SUPPLY TO PURGE CON-
TROL SOLENOID VALVE.
1) Turn the ignition switch to ON.
2) Measure the voltage between purge control
solenoid valve and engine ground.
Connector & terminal
(E4) No. 1 (+) — Engine ground (–):
Is the voltage more than 10 V? Go to step 6.Repair the open
circuit of harness
between main
relay and purge
control solenoid
valve connector.
6CHECK POOR CONTACT.
Check poor contact of purge control solenoid
valve connector.
Is there poor contact of purge
control solenoid valve connec-
tor?
Repair the poor
contact of purge
control solenoid
valve connector.
Replace the ECM.
FU(H6DO)-32,
Engine Control
Module (ECM).>

EN(H6DO)(diag)-291
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CL:DTC P0459 EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CON-
TROL VALVE CIRCUIT HIGH
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION SYSTEM PURGE CONTROL VALVE CIRCUIT HIGH, Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Erroneous idling
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
WIRING DIAGRAM:
EN-03668
E4
B47
B47
3412
56
SBF-7
12
46
35
29
B21
E24841
B137ECM
21
E4
12
E
B21
123412131415567816171819910 1120212223 24 25 2627 28 29 3031 32 33
3534 37363938 41404342 4445 47464948 51505352 54
32E76
E77
BATTERY
MAIN RELAY
PURGE CONTROLSOLENOID VALVE
E77
134562
B137
85610 11 12 13 14 157213416
3019 20 2228 29
91718 2521 23 243126 27

EN(H6DO)(diag)-292
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
1CHECK OUTPUT SIGNAL OF ECM.
1) Turn the ignition switch to OFF.
2) Connect the test mode connector at the
lower portion of instrument panel (on the
driver’s side).
3) Turn the ignition switch to ON.
4) Measure the voltage between ECM and
chassis ground while operating the purge con-
trol solenoid valve.
NOTE:Purge control solenoid valve operation can be
executed using Subaru Select Monitor. Refer to
“Compulsory Valve Operation Check Mode” for
procedures. Compulsory Valve Operation Check Mode.>
Connector & terminal
(B137) No. 29 (+) — Chassis ground (–):
Is the voltage 0 — 10 V? Go to step 2.Even if the mal-
function indicator
light illuminates,
the circuit has
returned to a nor-
mal condition at
this time. In this
case, repair the
poor contact in
ECM connector.
2CHECK OUTPUT SIGNAL OF ECM.
1) Turn the ignition switch to ON.
2) Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B137) No. 29 (+) — Chassis ground (–):
Is the voltage more than 10 V? Go to step 4.Go to step 3.
3CHECK POOR CONTACT.
Check poor contact of ECM connector.
Is there poor contact in ECM
connector?
Repair poor con-
tact in ECM con-
nector.
Replace the ECM.
FU(H6DO)-32,
Engine Control
Module (ECM).>
4CHECK HARNESS BETWEEN PURGE CON-
TROL SOLENOID VALVE AND ECM CON-
NECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from purge con-
trol solenoid valve.
3) Turn the ignition switch to ON.
4) Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B137) No. 29 (+) — Chassis ground (–):
Is the voltage more than 10 V? Repair the battery
short circuit of har-
ness between
ECM and purge
control solenoid
valve connector.
After repair,
replace the ECM.
FU(H6DO)-32,
Engine Control
Module (ECM).>
Go to step 5.
5CHECK PURGE CONTROL SOLENOID
VALVE.
1) Turn the ignition switch to OFF.
2) Measure the resistance between purge
control solenoid valve terminals.
Te r m i n a l s
No. 1 — No. 2:
Is the resistance less than 1
Ω?
Replace the purge
control solenoid
valve EC(H6DO)-6,
Purge Control
Solenoid Valve.>
and ECM. FU(H6DO)-32,
Engine Control
Module (ECM).>
Go to step 6.
6CHECK POOR CONTACT.
Check poor contact of ECM connector.
Is there poor contact in ECM
connector?
Repair poor con-
tact in ECM con-
nector.
Replace the ECM.
FU(H6DO)-32,
Engine Control
Module (ECM).>

EN(H6DO)(diag)-293
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CM:DTC P0461 FUEL LEVEL SENSOR CIRCUIT RANGE/PERFORMANCE
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
CN:DTC P0462 FUEL LEVEL SENSOR CIRCUIT LOW INPUT
NOTE:
For the diagnostic procedure, refer to DTC P0463. SENSOR CIRCUIT HIGH INPUT, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
CO:DTC P0463 FUEL LEVEL SENSOR CIRCUIT HIGH INPUT
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check the appro-
priate DTC using
the “List of Diag-
nostic Trouble
Code (DTC)”.
EN(H6DO)(diag)-
69, List of Diag-
nostic Trouble
Code (DTC).>
NOTE:In this case, it is
not necessary to
inspect DTC
P0461.
Replace the fuel
level sensor and
fuel sub level sen-
sor. FU(H6DO)-45,
Fuel Level Sen-
sor.> FU(H6DO)-46,
Fuel Sub Level
Sensor.>
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is DTC P0462 or P0463 dis-
played on the Subaru Select
Monitor?
Check the combi-
nation meter.
Combination
Meter.>
Te m p o r a r y p o o r
contact occurs.

EN(H6DO)(diag)-294
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CP:DTC P0464 FUEL LEVEL SENSOR CIRCUIT INTERMITTENT
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION TERMITTENT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
CQ:DTC P0483 COOLING FAN RATIONALITY CHECK
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
•Occurrence of noise
•Overheating
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
NOTE:
If the vehicle, with the engine idling, is placed very close to a wall or another vehicle, preventing normal cool-
ing function, the OBD system may detect malfunction.
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is DTC P0464 displayed on the
display?
Check the combi-
nation meter.
Combination
Meter.>
Te m p o r a r y p o o r
contact occurs.
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check the appro-
priate DTC using
the “List of Diag-
nostic Trouble
Code (DTC)”.
EN(H6DO)(diag)-
69, List of Diag-
nostic Trouble
Code (DTC).>
Check radiator fan,
fan motor and
thermostat and if
thermostat is
stuck, replace
thermostat. to CO(H6DO)-21,
Radiator Main Fan
and Fan Motor.>
CO(H6DO)-25,
Radiator Sub Fan
and Fan Motor.>

EN(H6DO)(diag)-295
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CR:DTC P0500 VEHICLE SPEED SENSOR
DTC DETECTING CONDITION:
•Immediately at fault recognition
•GENERAL DESCRIPTION Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
Step Check Yes No
1CHECK DTC OF VDC.
Check DTC of VDC.
Is DTC of VDC displayed? Perform the diag-
nosis according to
DTC. VDC(diag)-34, List
of Diagnostic Trou-
ble Code (DTC).>
Repair the poor
contact of ECM.

EN(H6DO)(diag)-296
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CS:DTC P0506 IDLE CONTROL SYSTEM RPM LOWER THAN EXPECTED
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION ER THAN EXPECTED, Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
•Hard to start the engine.
•Engine does not start.
•Erroneous idling
•Engine stalls.
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check the appro-
priate DTC using
the “List of Diag-
nostic Trouble
Code (DTC)”.
EN(H6DO)(diag)-
69, List of Diag-
nostic Trouble
Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
P0506.
Go to step 2.
2CHECK AIR CLEANER ELEMENT.
1) Turn the ignition switch to OFF.
2) Check the air cleaner element.
Is the air cleaner element
excessively clogged?
Replace the air
cleaner element.
IN(H6DO)-4, Air
Cleaner Element.>
Go to step 3.
3CHECK ELECTRONIC THROTTLE CON-
TROL.
1) Turn the ignition switch to OFF.
2) Remove the electronic throttle control.
3) Check the electronic throttle control.
Are foreign matter found inside
electronic throttle control?
Remove foreign
matter from elec-
tronic throttle con-
trol.
Per fo r m th e di ag -
nosis of DTC
P2101.

EN(H6DO)(diag)-297
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CT:DTC P0507 IDLE CONTROL SYSTEM RPM HIGHER THAN EXPECTED
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION ER THAN EXPECTED, Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Engine keeps running at higher speed than specified idle speed.
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check the appro-
priate DTC using
the “List of Diag-
nostic Trouble
Code (DTC)”.
EN(H6DO)(diag)-
69, List of Diag-
nostic Trouble
Code (DTC).>
NOTE:In this case, it is
not necessary to
inspect DTC
P0507.
Go to step 2.
2CHECK AIR INTAKE SYSTEM.
1) Turn the ignition switch to ON.
2) Start and idle the engine.
3) Check the following item.
•Loose installation of intake manifold and
throttle body
•Cracks of intake manifold gasket and throttle
body gasket
•Disconnection of vacuum hoses
Is there any fault in air intake
system?
Repair air suction
and leaks.
Go to step 3.
3CHECK ELECTRONIC THROTTLE CON-
TROL.
1) Turn the ignition switch to OFF.
2) Remove the electronic throttle control.
3) Check the electronic throttle control.
Are foreign matter found inside
electronic throttle control?
Remove foreign
matter from elec-
tronic throttle con-
trol.
Per fo r m th e di ag -
nosis of DTC
P2101.

EN(H6DO)(diag)-298
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CU:DTC P0512 STARTER REQUEST CIRCUIT
DTC DETECTING CONDITION:
•Immediately at fault recognition
•GENERAL DESCRIPTION nostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Failure of engine to start
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.

EN(H6DO)(diag)-299
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
EN-03735
3220
NO.21
B225
MAIN SBFSBF-6
E
1513
1614
ECM
B136
B72
B14
M
23
B72B225
101112
131415 16
17181920
21222324
25262728
293031 32
333435 36 39 40
3738
129
34
56
78
134562
BATTERY
IGNITIONSWITCH
STARTERRELAYSTARTER MOTOR
B136
16101112131415252430
9871718192028212223293231
123456
2726333435