2009 SUBARU TRIBECA engine coolant

EN(H6DO)(diag)-359
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
16 CHECK REAR OXYGEN SENSOR DATA.
1) Warm-up the engine until engine coolant
temperature is above 70°C (158°F), and rap-
idly reduce the engine speed from 5,000 rpm.
2) Read the data of rear oxygen 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 voltage 250 mV or less? Contact with SOA
Service Center.
Go to step 17.
17 CHECK HARNESS BETWEEN ECM AND
REAR OXYGEN SENSOR CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from ECM and
rear oxygen sensor.
3) Measure the resistance of harness
between ECM and rear oxygen sensor con-
nector.
Connector & terminal
(B137) No. 25 — (E61) No. 3:
(B136) No. 35 — (E61) No. 4:
Is the resistance more than
3Ω?
Repair the open
circuit of harness
between ECM and
rear oxygen sen-
sor connector.
Go to step 18.
18 CHECK HARNESS BETWEEN REAR OXY-
GEN SENSOR AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from rear oxygen
sensor.
3) Turn the ignition switch to ON.
4) Measure the voltage between rear oxygen
sensor harness connector and chassis ground.
Connector & terminal
(E25) No. 3 (+) — Chassis ground (–):
Is the voltage 0.2 — 0.5 V? Replace the rear
oxygen sensor.
FU(H6DO)-30,
Rear Oxygen Sen-
sor.>
Repair the har-
ness and connec-
tor.
NOTE:In this case, repair
the following item:
•Open circuit
of harness be-
tween rear oxy-
gen sensor and
ECM connector
•Poor contact
in rear oxygen
sensor connec-
tor
•Poor contact
in ECM connec-
tor
Step Check Yes No

EN(H6DO)(diag)-392
General Diagnostic Table
ENGINE (DIAGNOSTICS)
19.General Diagnostic Table
A: INSPECTION
1. ENGINE
NOTE:
Malfunction of parts other than those listed is also possible. eral.>
Symptom Problem parts
1. Engine stalls during idling.
1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Ignition parts (*1)
4) Engine coolant temperature sensor (*2)
5) Crankshaft position sensor (*3)
6) Camshaft position sensor (*3)
7) Fuel injection parts (*4)
2. Rough idling
1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor (*2)
4) Ignition parts (*1)
5) Air intake system (*5)
6) Fuel injection parts (*4)
7) Electronic throttle control
8) Crankshaft position sensor (*3)
9) Camshaft position sensor (*3)
10) Oxygen sensor
11) Fuel pump and fuel pump relay
3. Engine does not return to idle.
1) Engine coolant temperature sensor
2) Electronic throttle control
3) Manifold absolute pressure sensor
4) Mass air flow and intake air temperature sensor
5) Accelerator pedal position sensor
6) Oil temperature sensor
4. Poor acceleration
1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Electronic throttle control
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay
6) Engine coolant temperature sensor (*2)
7) Crankshaft position sensor (*3)
8) Camshaft position sensor (*3)
9) A/C switch and A/C cut relay
10) Engine torque control signal circuit
11) Ignition parts (*1)
12) Accelerator pedal position sensor
13) Oil temperature sensor
5. Engine stalls, engine sags or hesitates at accel-
eration.
1) Manifold absolute pressure sensor
2) Mass air flow and intake air temperature sensor
3) Engine coolant temperature sensor (*2)
4) Crankshaft position sensor (*3)
5) Camshaft position sensor (*3)
6) Purge control solenoid valve
7) Fuel injection parts (*4)
8) Electronic throttle control
9) Fuel pump and fuel pump relay

EN(H6DO)(diag)-393
General Diagnostic Table
ENGINE (DIAGNOSTICS)
*1: Check ignition coil & ignitor assembly and spark plug.
*2: Indicate the symptom occurring only in cold temperatures.
*3: Make sure the secure installation.
*4: Check the fuel injector and fuel pressure regulator.
*5: Inspect air leak in air intake system.
6. Surging
1) Mass air flow and intake air temperature sensor
2) Manifold absolute pressure sensor
3) Engine coolant temperature sensor (*2)
4) Crankshaft position sensor (*3)
5) Camshaft position sensor (*3)
6) Fuel injection parts (*4)
7) Electronic throttle control
8) Fuel pump and fuel pump relay
7. Spark knock
1) Mass air flow and intake air temperature sensor
2) Manifold absolute pressure sensor
3) Engine coolant temperature sensor
4) Knock sensor
5) Fuel injection parts (*4)
6) Fuel pump and fuel pump relay
8. After burning in exhaust system
1) Mass air flow and intake air temperature sensor
2) Manifold absolute pressure sensor
3) Engine coolant temperature sensor (*2)
4) Fuel injection parts (*4)
5) Fuel pump and fuel pump relay
Symptom Problem parts

FU(H6DO)-11
Throttle Body
FUEL INJECTION (FUEL SYSTEMS)
2. Throttle Body
A: REMOVAL
1) Remove the collector cover.
2) Disconnect the ground cable from battery.
3) Remove the air intake chamber. IN(H6DO)-6, REMOVAL, Air Intake Chamber.>
4) Disconnect the connectors from the throttle posi-
tion sensor.
5) Disconnect the engine coolant hoses (A) from
throttle body.
6) Remove the bolts (B) which secure throttle body
to intake manifold.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Use new O-rings.
Tightening torque:
8 N·m (0.8 kgf-m, 5.9 ft-lb)
FU-02111
FU-02112
(A)(B)
(B)
(A)

FU(H6DO)-12
Intake Manifold
FUEL INJECTION (FUEL SYSTEMS)
3. Intake Manifold
A: REMOVAL
1) Remove the collector cover.
2) Release the fuel pressure. 37, RELEASING OF FUEL PRESSURE, PROCE-
DURE, Fuel.>
3) Disconnect the ground cable from battery.
4) Open the fuel filler flap lid, and remove the fuel
filler cap.
5) Remove the air cleaner case and air intake
chamber. Cleaner Case.> Air Intake Chamber.>
6) Remove the generator. REMOVAL, Generator.>
7) Disconnect the connector from throttle body.
8) Disconnect the engine coolant hoses from throt-
tle body.
9) Disconnect the PCV hose.
10) Disconnect the brake booster hose.
11) Disconnect the fuel hoses from fuel pipe.
(1) Disconnect the connector of fuel pipe by
pushing the ST in the direction of arrow.
ST 42099AE000 CONNECTOR REMOVER
(2) Remove the clip, and disconnect the evapo-
ration hose from the pipe.
WARNING:
•Be careful not to spill fuel.
•Catch the fuel from hoses using a container
or cloth.
12) Remove the fuel pipe protector LH.
13) Remove the engine harness from fuel injector
pipe LH.
FU-02487
FU-02114
EC-02133
ME-02655
FU-02117

FU(H6DO)-15
Intake Manifold
FUEL INJECTION (FUEL SYSTEMS)
11) Connect the engine coolant hoses to throttle
body.
12) Connect the connector to throttle body.
13) Install the generator. INSTALLATION, Generator.>
14) Install the air cleaner case and air intake cham-
ber. Cleaner Case.> TION, Air Intake Chamber.>
15) Install the fuse of fuel pump to main fuse box.
16) Connect the ground cable to the battery.
17) Install the collector cover.
C: DISASSEMBLY
1) Remove the engine harness from intake mani-
fold.
2) Remove the throttle body. 11, REMOVAL, Throttle Body.>
3) Remove the manifold absolute pressure sensor.
solute Pressure Sensor.>
4) Remove the purge control solenoid valve. to EC(H6DO)-6, REMOVAL, Purge Control Sole-
noid Valve.>
5) Loosen the clamp which holds fuel injector pipe
to fuel hose, and then disconnect the pipe from fuel
hose.
6) Remove the bolts which install fuel pipes on in-
take manifold.
FU-02114
FU-02487FU-02124
FU-02125
FU-02126

FU(H6DO)-17
Engine Coolant Temperature Sensor
FUEL INJECTION (FUEL SYSTEMS)
4. Engine Coolant Temperature
Sensor
A: REMOVAL
1) Remove the collector cover.
2) Disconnect the ground cable from battery.
3) Disconnect the connectors from the engine cool-
ant temperature sensor.
4) Remove the engine coolant temperature sensor.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
18 N·m (1.8 kgf-m, 13.3 ft-lb)
FU-00572
FU-00572

GD(H6DO)-3
List of Diagnostic Trouble Code (DTC)
GENERAL DESCRIPTION
P0083 Intake Valve Control Circuit High
(Bank 2)
HIGH (BANK 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0101 Mass or Volume Air Flow Circuit
Range/Performance
CUIT RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting
Criteria.>
P0102 Mass or Volume Air Flow Circuit
Low Input
CUIT LOW INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0103 Mass or Volume Air Flow Circuit
High Input
CUIT HIGH INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0107 Manifold Absolute Pressure/Baro-
metric Pressure Circuit Low Input
BAROMETRIC PRESSURE CIRCUIT LOW INPUT, Diagnostic Trouble Code
(DTC) Detecting Criteria.>
P0108 Manifold Absolute Pressure/Baro-
metric Pressure Circuit High Input
BAROMETRIC PRESSURE CIRCUIT HIGH INPUT, Diagnostic Trouble
Code (DTC) Detecting Criteria.>
P0111 Intake Air Temperature Circuit
Range/Performance
RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting Crite-
ria.>
P0112 Intake Air Temperature Circuit Low
Input
LOW INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0113 Intake Air Temperature Circuit High
Input
HIGH INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0117 Engine Coolant Temperature Cir-
cuit Low Input
CIRCUIT LOW INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0118 Engine Coolant Temperature Cir-
cuit High Input
CIRCUIT HIGH INPUT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0122 Throttle/Pedal Position Sensor/
Switch “A” Circuit Low Input
SOR/SWITCH “A” CIRCUIT LOW INPUT, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0123 Throttle/Pedal Position Sensor/
Switch “A” Circuit High Input
SOR/SWITCH “A” CIRCUIT HIGH INPUT, Diagnostic Trouble Code (DTC)
Detecting Criteria.>
P0125 Insufficient Coolant Temperature
For Closed Loop Fuel Control
TURE FOR CLOSED LOOP FUEL CONTROL, Diagnostic Trouble Code
(DTC) Detecting Criteria.>
P0126 Insufficient Coolant Temperature
for Stable Operation
TURE FOR STABLE OPERATION, Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0128 Coolant Thermostat (Coolant Tem-
perature Below Thermostat Regu-
lating Temperature)
TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE),
Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0131 O2 Sensor Circuit Low Voltage
(Bank 1 Sensor 1)
(BANK 1 SENSOR 1), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0132 O2 Sensor Circuit High Voltage
(Bank 1 Sensor 1)
(BANK 1 SENSOR 1), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0133 O2 Sensor Circuit Slow Response
(Bank 1 Sensor 1)
RESPONSE (BANK 1 SENSOR 1), Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0134 O2 Sensor Circuit No Activity
Detected (Bank 1 Sensor 1)
DETECTED (BANK 1 SENSOR 1), Diagnostic Trouble Code (DTC) Detect-
ing Criteria.>
P0137 O2 Sensor Circuit Low Voltage
(Bank 1 Sensor 2)
(BANK 1 SENSOR 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
P0138 O2 Sensor Circuit High Voltage
(Bank 1 Sensor 2)
(BANK 1 SENSOR 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
DTC Item Index