system abs SUBARU TRIBECA 2009 1.G Service Repair Manual

EN(H6DO)(diag)-38
Inspection Mode
ENGINE (DIAGNOSTICS)
7) Connect the Subaru Select Monitor to the data
link connector at the lower portion of instrument
panel (on the driver's side).
CAUTION:
Do not connect any scan tools except Subaru
Select Monitor or general scan tool.
8) Turn the ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.
9) On the «Main Menu» display screen, select the
{Each System Check} and press the [YES] key.
10) On the «System Selection Menu» display
screen, select the {Engine} and press the [YES]
key.
11) Press the [YES] key after the information of en-
gine type has been displayed.
12) On the «Engine Diagnosis» display screen, se-
lect the {D Check} and press the [YES] key.
13) When the “Perform D Check?” is shown on the
screen, press the [YES] key.
14) Perform subsequent procedures as instructed
on the display screen.
•If trouble still remains in the memory, the corre-
sponding DTC appears on the display screen.
NOTE:
•For detailed operation procedure, refer to the
“SUBARU SELECT MONITOR OPERATION
MANUAL”.
•For details concerning DTC, refer to “List of Di-
agnostic Trouble Code (DTC)”.
Trouble Code (DTC).>
•Release the parking brake.
•The speed difference between front and rear
wheels may light the ABS warning light, but this
indicates no malfunctions. When engine control
diagnosis is finished, perform the ABS memory
clearance procedure of self-diagnosis function.
3. GENERAL SCAN TOOL
1) After performing the diagnostics and clearing the
memory, check for any remaining unresolved trou-
ble data. ory Mode.>
2) Idle the engine.
3) Connect the test mode connector (A) located un-
der the glove box.
4) Connect the Subaru Select Monitor to the data
link connector at the lower portion of instrument
panel (on the driver’s side).
CAUTION:
Do not connect any scan tools except Subaru
Select Monitor or general scan tool.
(A) Power switch
EN-03693
(A)
EN-00040
EN-03694
(4)
EN-03693

EN(H6DO)(diag)-39
Inspection Mode
ENGINE (DIAGNOSTICS)
5) Start the engine.
NOTE:
Make sure the select lever is placed in “P” position
before starting.
6) Using the select lever, turn the “P” position
switch and the “N” position switch to ON.
7) Depress the brake pedal to turn brake switch
ON.
8) Keep the engine speed in 2,500 — 3,000 rpm
range for 40 seconds.
9) Shift the select lever in the “D” range and drive
the vehicle at 5 to 10 km/h (3 to 6 MPH).
NOTE:
•For AWD model, release the parking brake.
•The speed difference between front and rear
wheels may light the ABS warning light, but this in-
dicates no malfunctions. When engine control diag-
nosis is finished, perform the ABS memory
clearance procedure of self-diagnosis system.
10) Using the general scan tool, check DTC and
record the result(s).
NOTE:
•For detailed operation procedure, refer to the
general scan tool operation manual.
•For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”.
Trouble Code (DTC).>

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)-4
General Description
FUEL INJECTION (FUEL SYSTEMS)
2. FUEL INJECTOR
(1) Intake manifold (8) HoseTightening torque: N·m (kgf-m, ft-lb)
(2) O-ring (9) NippleT1: 1.5 (0.15, 1.1)
(3) Manifold absolute pressure sensor (10) PlugT2: 6.4 (0.65, 4.7)
(4) Filter (11) Fuel pipe protector LHT3: 17 (1.7, 12.5)
(5) Fuel pipe protector RH (12) Fuel pipe ASSYT4: 19 (1.9, 14)
(6) Purge control solenoid valve (13) HoseT5: 25 (2.5, 18)
(7) Hose (14) Clamp
(1) Fuel injector pipe LH (4) Injection rubberTightening torque: N·m (kgf-m, ft-lb)
(2) Insulator (5) O-ringT: 19 (1.9, 14)
(3) Fuel injector (6) Fuel injector pipe RH
FU-02561
(6)
T
T
(5)
(4)
(3)
(2)
(2)(3)(4)(5)
(1)

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)-16
Intake Manifold
FUEL INJECTION (FUEL SYSTEMS)
D: ASSEMBLY
NOTE:
When assembling the nipple, apply liquid gasket.
Liquid gasket:
THREE BOND 1105 (Part No.004403010)
1) Tighten the bolts which install fuel pipes on in-
take manifold.
Tightening torque:
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
2) Connect the fuel injector pipe to fuel hose, and
tighten the clamp screw.
Tightening torque:
1.5 N·m (0.15 kgf-m, 1.1 ft-lb)
3) Install the purge control solenoid valve. EC(H6DO)-6, INSTALLATION, Purge Control So-
lenoid Valve.>
4) Install the manifold absolute pressure sensor.
Absolute Pressure Sensor.>
5) Install the throttle body to intake manifold. to FU(H6DO)-11, INSTALLATION, Throttle Body.>
6) Install the engine harness to the intake manifold.
E: INSPECTION
Make sure the fuel pipe and fuel hoses are not
damaged and the connections are tightened firmly.
FU-02125
FU-02126
FU-02124

FU(H6DO)-22
Manifold Absolute Pressure Sensor
FUEL INJECTION (FUEL SYSTEMS)
9. Manifold Absolute Pressure
Sensor
A: REMOVAL
1) Remove the collector cover.
2) Disconnect the ground cable from battery.
3) Disconnect the connector from manifold abso-
lute pressure sensor (A), and remove the filter as-
sembly (B) from intake manifold.
4) Remove the manifold absolute pressure sensor
from intake manifold.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
FU-02131
(B)(A)

GD(H6DO)-85
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
BB:DTC P0172 SYSTEM TOO RICH (BANK 1)
1. OUTLINE OF DIAGNOSIS
Detect fuel system malfunction by the amount of main feedback control.
Diagnostic method
Fuel system is diagnosed by comparing the target air fuel ratio calculated by ECM with the actual air fuel ra-
tio measured by sensor.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously at idling or at a constant speed after warming up the engine.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Compare the diagnosed value (fsobd) with the threshold value, and if a condition where the malfunction cri-
teria are met continues for more than 50 seconds, judge that there is a fault in the fuel system.
Time Needed for Diagnosis: 10 seconds × 5 times
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK when the malfunction criteria below continues for 10 seconds.
5. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
Secondary Parameters Enable Conditions
A/F main learning system In operation
Engine coolant temperature≥ 75°C (167°F)
Cumulative time of canister purge after
engine start
20 seconds or more
Continuous period after canister purge
starting
30 seconds or more
Intake manifold absolute pressure≥ Map 1
Judgment Value
Malfunction Criteria Threshold Value
fsobd = (sglmd – tglmda) + faf + flaf≤ fsobdR1
In this case: sglmd = measured lambda,
tglmda = target lambda, faf = main feed-
back compensation coefficient (every 64
milliseconds), flaf = main feedback learn-
ing compensation coefficient
Refer to Map 4.
fsobdR1 = rich side
threshold value of
fsobd
Map 4
Amount of air (g(oz)/s) 0 (0)3.2
(0.113)
6.4
(0.226)
9.6
(0.339)
12.8
(0.451)
16
(0.564)
19.2
(0.677)
fsobdR1 (%) –40 –40 –31.2 –26.5 –26.5 –26.5 26.5
Judgment Value
Malfunction Criteria Threshold Value
fsobd = (sglmd – tglmda) + faf + flaf≥ –20%

GD(H6DO)-122
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
3. ENABLE CONDITIONS
Map 2
Add the following value every 512 milliseconds.
4. GENERAL DRIVING CYCLE
Perform the diagnosis only once at a constant 70 km/h (43 MPH) or higher.
5. DIAGNOSTIC METHOD
After the execution criteria are established, calculate the output fluctuation value of front oxygen (A/F) sensor
(averaged for the right and left) and output fluctuation value of rear oxygen sensor. Calculate the diagnosis
value when the front oxygen (A/F) sensor output fluctuation value is more than specified value. A/F response
properties and diagnosis values are parameters for the judgment value.
Judge as NG when the malfunction criteria below are met. Judge as OK if the criteria below are not met.
Time Needed for Diagnosis: 30 to 55 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Secondary Parameters Enable Conditions
Battery voltage > 10.9 V
Atmospheric pressure > 75.1 kPa (563
mmHg, 22.2 inHg)
Engine coolant temperature≥ 75°C (167°F)
Catalyst warm-up counter (Map 2)≥ 8000
Misfire detection every 200 rotations < 5 times
Sub feedback In operation
Evaporative system diagnosis Not in operation
Time of difference (< 0.10) between
actual and target lambda
1000 milliseconds or
more
Ve h i c l e s p e e d≥ 70 km/h (43 MPH)
Amount of intake air 15 ←→ 50 g (0.53
←→ 1.76 oz)/s
Rear O2 output change from lower than
to higher than 600 mV
Experienced after fuel
cut
Load change absolute value < 0.02 g (0.007 oz)/rev
To t a l t i m e o f c a n i s t e r p u r g e o p e r a t i o n≥ 5 sec.
Learning value of evaporation gas den-
sity
≤ 0.12
After engine starting≥ 205 sec.
Amount of intake
air (g(oz)/s)0 (0)3.2
(0.113)
6.4
(0.226)
9.6
(0.339)
12.8
(0.451)
16
(0.564)
19.2
(0.677)
22.4
(0.790)
25.6
(0.903)
28.8
(1.016)
32
(1.129)
35.2
(1.242)
To t a l v a l u e f o r
warm-up counter–19 –8 11 19 30 44 61 81 104 130 159 161
Judgment Value
Malfunction Criteria Threshold Value
Accumulated variation of output voltage
of rear oxygen sensor per 32 millisec-
onds × 4 divided by accumulated varia-
tion of lambda of front oxygen (A/F)
sensor per 32 milliseconds × 4
≥ 30