2009 SUBARU TRIBECA fuel pump

EN(H6DO)(diag)-57
Diagnostics for Engine Starting Failure
ENGINE (DIAGNOSTICS)
16.Diagnostics for Engine Starting Failure
A: PROCEDURE
1. Check for fuel amount.
↓
2. Inspection of starter motor circuit. Fai l ur e. >
↓
3. Inspection of ECM power supply and ground line. LINE OF ENGINE CONTROL MODULE (ECM), Diagnostics for Engine Starting Failure.>
↓
4. Inspection of ignition control system. Starting Failure.>
↓
5. Inspection of fuel pump circuit
↓
6. Inspection of fuel injector circuit ure.>

EN(H6DO)(diag)-64
Diagnostics for Engine Starting Failure
ENGINE (DIAGNOSTICS)
Step Check Yes No
1CHECK SPARK PLUG CONDITION.
1) Remove the spark plug. IG(H6DO)-4, REMOVAL, Spark Plug.>
2) Check the spark plug condition. IG(H6DO)-5, INSPECTION, Spark Plug.>
Is the spark plug status OK? Go to step 2.Replace the spark
plug.
2CHECK IGNITION SYSTEM FOR SPARKS.
1) Connect the spark plug to ignition coil.
2) Release the fuel pressure.
3) Contact the spark plug thread portion on
engine.
4) While opening the throttle valve fully, start
the engine to check if spark occurs at each cyl-
inder.
Does spark occur at each cyl-
inder?
Check fuel pump
system. EN(H6DO)(diag)-
66, FUEL PUMP
CIRCUIT, Diag-
nostics for Engine
Starting Failure.>
Go to step 3.
3CHECK POWER SUPPLY CIRCUIT FOR IG-
NITION COIL AND IGNITOR ASSEMBLY.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ignition coil
& ignitor assembly.
3) Turn the ignition switch to ON.
4) Measure the power supply voltage between
ignition coil and ignitor assembly connector
and engine ground.
Connector & terminal
(E31) No. 3 (+) — Engine ground (–):
(E32) No. 3 (+) — Engine ground (–):
(E33) No. 3 (+) — Engine ground (–):
(E34) No. 3 (+) — Engine ground (–):
(E45) No. 3 (+) — Engine ground (–):
(E46) No. 3 (+) — Engine ground (–):
Is the voltage more than 10 V? Go to step 4.Repair the har-
ness and connec-
tor.
NOTE:
In this case, repair
the following item:
•Open circuit
of harness be-
tween the igni-
tion coil and
ignitor assem-
bly, and ignition
switch connec-
tor
•Poor contact
of coupling con-
nector
4CHECK HARNESS OF IGNITION COIL AND
IGNITOR ASSEMBLY GROUND CIRCUIT.
1) Turn the ignition switch to OFF.
2) Measure the resistance between the igni-
tion coil and ignitor assembly connector and
engine ground.
Connector & terminal
(E31) No. 2 — Engine ground:
(E32) No. 2 — Engine ground:
(E33) No. 2 — Engine ground:
(E34) No. 2 — Engine ground:
(E45) No. 2 — Engine ground:
(E46) No. 2 — Engine ground:
Is the resistance less than 5
Ω?
Go to step 5.Repair the har-
ness and connec-
tor.
NOTE:
In this case, repair
the following item:
•Open circuit
of harness be-
tween ignition
coil and ignitor
assembly con-
nector & engine
grounding ter-
minal

EN(H6DO)(diag)-65
Diagnostics for Engine Starting Failure
ENGINE (DIAGNOSTICS)
5CHECK HARNESS BETWEEN ECM AND IG-
NITION COIL AND IGNITOR ASSEMBLY
CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM.
3) Disconnect the connector from ignition coil
& ignitor assembly.
4) Measure the resistance of harness
between ECM and ignition coil and ignitor
assembly connector.
Connector & terminal
(B137) No. 18 — (E31) No. 1:
(B137) No. 19 — (E32) No. 1:
(B137) No. 20 — (E33) No. 1:
(B137) No. 21 — (E34) No. 1:
(B137) No. 22 — (E45) No. 1:
(B137) No. 23 — (E46) No. 1:
Is the resistance less than 1
Ω?
Go to step 6.Repair the har-
ness and connec-
tor.
NOTE:In this case, repair
the following item:
•Open circuit
of harness be-
tween ECM and
ignition coil and
ignitor assem-
bly connector
•Poor contact
of coupling con-
nector
6CHECK HARNESS BETWEEN ECM AND IG-
NITION COIL AND IGNITOR ASSEMBLY
CONNECTOR.
Measure the resistance of harness between
ECM and engine ground.
Connector & terminal:
(B137) No. 18 — Engine ground:
(B137) No. 19 — Engine ground:
(B137) No. 20 — Engine ground:
(B137) No. 21 — Engine ground:
(B137) No. 22 — Engine ground:
(B137) No. 23 — Engine ground:
Is the resistance more than 1
MΩ?
Go to step 7.Repair the ground
short circuit of har-
ness between
ECM and ignition
coil & ignitor
assembly connec-
tor.
7CHECK POOR CONTACT.
Check poor contact of ECM connector.
Is there poor contact in ECM
connector?
Repair poor con-
tact in ECM con-
nector.
Check the fuel
pump circuit. to
EN(H6DO)(diag)-
66, FUEL PUMP
CIRCUIT, Diag-
nostics for Engine
Starting Failure.>
Step Check Yes No

EN(H6DO)(diag)-66
Diagnostics for Engine Starting Failure
ENGINE (DIAGNOSTICS)
E: FUEL PUMP CIRCUIT
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
WIRING DIAGRAM:
EN-03653
EE
M
10
76
56
NO.11
B362
R122
B135B:
B136C:
R58
7
B33C12
21
985
FUEL PUMPCONTROL UNIT
FUELPUMPECM
BATTERY
FUEL PUMPRELAY
B362
5678
3412
R1
B98218
23B98
R1
R15
R60712
R58
2
546
13
B135B:
567821943102422 23 2511 12 13 14 1526 2728
16 17 18 1920 2129 30 31 32 33 34 35
R122
34125891067
B98
123456 78910 1112 13 16 1714 15 18 19 2021222324
R60
12
10115634897131412
B136
16101112131415252430
9871718192028212223293231
123456
2726333435
C:
Step Check Yes No
1CHECK OPERATING SOUND OF FUEL
PUMP.
Make sure that the fuel pump operates for two
seconds when turning the ignition switch to ON.
NOTE:
Fuel pump operation can also be executed us-
ing Subaru Select Monitor.
Refer to “Compulsory Valve Operation Check
Mode” for procedures. ag)-46, Compulsory Valve Operation Check
Mode.>
Does the fuel pump emit oper-
ating sound?
Check the fuel
injector circuit.
EN(H6DO)(diag)-
67, FUEL INJEC-
TOR CIRCUIT,
Diagnostics for
Engine Starting
Fa il u r e. >
Display DTC.
EN(H6DO)(diag)-
34, OPERATION,
Read Diagnostic
Tr o u b l e C o d e
(DTC).>

EN(H6DO)(diag)-67
Diagnostics for Engine Starting Failure
ENGINE (DIAGNOSTICS)
F: FUEL INJECTOR CIRCUIT
CAUTION:
•Check or repair only faulty parts.
•After repair or replacement of faulty parts, perform Clear Memory Mode 45, OPERATION, Clear Memory Mode.> and Inspection Mode DURE, Inspection Mode.>.
WIRING DIAGRAM:
EN-03654
E6E17
E5E16
E43E44
12121212
109811
4248434445
ECMB137
E5E16E6E17
B21
E2
FUEL INJECTORNO. 1FUEL INJECTORNO. 2FUEL INJECTORNO. 3FUEL INJECTORNO. 4
BATTERY
1212
1213
4647
E43E44
FUEL INJECTORNO. 5FUEL INJECTORNO. 6
SBF-7
B47
MAIN RELAY
12
35
46
B47
3412
56
12
B21
123412131415567816171819910 1120212223 24 25 2627 28 29 3031 32 33
3534 37363938 41404342 4445 47464948 51505352 54
E
B137
85610 11 12 13 14 157213416
3019 20 2228 29
91718 2521 23 243126 27
Step Check Yes No
1CHECK OPERATION OF EACH FUEL INJEC-
TOR.
While cranking the engine, check each fuel
injector emits operating sound. Use a sound
scope or apply a screwdriver to the injector for
this check.
Does the fuel pump emit oper-
ating sound?
Check the fuel
pressure. ME(H6DO)-26,
INSPECTION,
Fuel Pressure.>
Go to step 2.

EN(H6DO)(diag)-72
List of Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
P0182 Fuel Temperature Sensor “A” Circuit
Low Input
SOR “A” CIRCUIT LOW INPUT, Diagnostic Procedure with Diagnostic Trou-
ble Code (DTC).>
P0183 Fuel Temperature Sensor “A” Circuit
High Input
SOR “A” CIRCUIT HIGH INPUT, Diagnostic Procedure with Diagnostic Trou-
ble Code (DTC).>
P0196 Engine Oil Temperature Sensor Cir-
cuit Range/Performance
SENSOR CIRCUIT RANGE/PERFORMANCE, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
P0197 Engine Oil Temperature Sensor Cir-
cuit Low
SENSOR CIRCUIT LOW, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
P0198 Engine Oil Temperature Sensor Cir-
cuit High
SENSOR CIRCUIT HIGH, Diagnostic Procedure with Diagnostic Trouble
Code (DTC).>
P0222 Throttle/Pedal Position Sensor/
Switch “B” Circuit Low Input
SENSOR/SWITCH “B” CIRCUIT LOW INPUT, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
P0223 Throttle/Pedal Position Sensor/
Switch “B” Circuit High Input
SENSOR/SWITCH “B” CIRCUIT HIGH INPUT, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
P0230 Fuel Pump Primary Circuit CUIT, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0301 Cylinder 1 Misfire Detected DETECTED, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0302 Cylinder 2 Misfire Detected DETECTED, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0303 Cylinder 3 Misfire Detected DETECTED, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0304 Cylinder 4 Misfire Detected DETECTED, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0305 Cylinder 5 Misfire Detected DETECTED, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0306 Cylinder 6 Misfire Detected DETECTED, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
P0327 Knock Sensor 1 Circuit Low Input
(Bank 1 or Single Sensor)
LOW INPUT (BANK 1 OR SINGLE SENSOR), Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
P0328 Knock Sensor 1 Circuit High Input
(Bank 1 or Single Sensor)
HIGH INPUT (BANK 1 OR SINGLE SENSOR), Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
P0332 Knock Sensor 2 Circuit Low Input
(Bank 2)
LOW INPUT (BANK 2), Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
P0333 Knock Sensor 2 Circuit High Input
(Bank 2)
HIGH INPUT (BANK 2), Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
P0335 Crankshaft Position Sensor “A” Cir-
cuit
SOR “A” CIRCUIT, Diagnostic Procedure with Diagnostic Trouble Code
(DTC).>
P0336 Crankshaft Position Sensor “A” Cir-
cuit Range/Performance
SOR “A” CIRCUIT RANGE/PERFORMANCE, Diagnostic Procedure with
Diagnostic Trouble Code (DTC).>
P0340 Camshaft Position Sensor “A” Circuit
(Bank 1 or Single Sensor)
SOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR), Diagnostic Procedure
with Diagnostic Trouble Code (DTC).>
DTC Item Reference

EN(H6DO)(diag)-218
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BD:DTC P0175 SYSTEM TOO RICH (BANK 2)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION tic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
•Erroneous idling
•Engine stalls.
•Poor driving performance
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
1 CHECK EXHAUST SYSTEM.Are there holes or loose bolts
on exhaust system?
Repair the exhaust
system.
Go to step 2.
2CHECK AIR INTAKE SYSTEM.Are there holes, loose bolts or
disconnection of hose on air
intake system?
Repair the air
intake system.
Go to step 3.
3CHECK FUEL PRESSURE
WARNING:
•Place “NO FIRE” signs near the working
area.
•Be careful not to spill fuel.
Measure the fuel pressure. ME(H6DO)-26, INSPECTION, Fuel Pressure.>
WARNING:Release fuel pressure before removing the
fuel pressure gauge.
Is the measured value 338 —
348 kPa (3.4 — 3.5 kg/cm2, 49
— 50.5 psi)?
Go to step 4.Repair the follow-
ing item.
Fuel pressure is
too high:
•Clogged fuel
line or bent
hose
Fuel pressure is
too low:
•Improper fuel
pump discharge
•Clogged fuel
supply line
4CHECK ENGINE COOLANT TEMPERATURE
SENSOR.
1) Start the engine and warm-up completely.
2) Read the data of engine coolant tempera-
ture sensor signal using Subaru Select Monitor
or general scan tool.
NOTE:•Subaru Select Monitor
For detailed operation procedures, refer to
“READ CURRENT DATA FOR ENGINE”. to EN(H6DO)(diag)-26, Subaru Select Moni-
tor.>
•General scan tool
For detailed operation procedure, refer to the
general scan tool operation manual.
Is the engine coolant tempera-
ture above 60°C (140°F) ?
Go to step 5.Replace the
engine coolant
temperature sen-
sor. FU(H6DO)-17,
Engine Coolant
Te m p e r a t u r e S e n -
sor.>

EN(H6DO)(diag)-223
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
1CHECK CURRENT DATA.
1) Start the engine.
2) Read the data of fuel temperature sensor
signal using Subaru Select Monitor.
NOTE:•Subaru Select Monitor
For detailed operation procedures, refer to
“READ CURRENT DATA FOR ENGINE”. to EN(H6DO)(diag)-26, Subaru Select Moni-
tor.>
Is the temperature above
120°C (248°F)?
Go to step 2.Even if the mal-
function indicator
light illuminates,
the circuit has
returned to a nor-
mal condition at
this time.
2CHECK CURRENT DATA.
1) Turn the ignition switch to OFF.
2) Remove the access hole lid.
3) Disconnect the connector from fuel pump.
4) Turn the ignition switch to ON.
5) Read the data of fuel temperature sensor
signal using Subaru Select Monitor.
NOTE:•Subaru Select Monitor
For detailed operation procedures, refer to
“READ CURRENT DATA FOR ENGINE”. to EN(H6DO)(diag)-26, Subaru Select Moni-
tor.>
Is the temperature less than -
40°C (-40°F)?
Replace the fuel
temperature sen-
sor. EC(H6DO)-8, Fuel
Te m p e r a t u r e S e n -
sor.>
Repair the ground
short circuit of har-
ness between the
fuel pump and
ECM connector.