2009 SUBARU TRIBECA Back up

GD(H6DO)-144
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CH:DTC P0453 EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE
SENSOR HIGH INPUT
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of the fuel tank pressure sensor.
Judge as NG if it is out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Perform the diagnosis when purging.
(A) Output voltage (C) To fuel tank (D) To atmosphere
(B) Input voltage

(1) Connector (2) Terminals
Secondary Parameters Enable Conditions
Ve h i c l e s p e e d≥ 2 km/h (1.24 MPH)
All conditions of EVAP canister purge Completed
Learning value of evaporation gas con-
centration (left and right)
< 0.08
Main feedback compensation coefficient
(left and right)
≥ 0.9
Battery voltage≥ 10.9 V
EN-03141
(A)
(B)
(2)(1)
(D)
(C)

GD(H6DO)-162
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
8. FAIL SAFE
•ABS wheel speed sensor signal process: Vehicle speed = 10 km/h (6 MPH)
•ISC control: ISC feedback amount calculation prohibited
•Radiator fan control: Send the duty signal 50% to the controller.
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)

GD(H6DO)-163
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CS:DTC P0506 IDLE CONTROL SYSTEM RPM LOWER THAN EXPECTED
1. OUTLINE OF DIAGNOSIS
Detect the malfunction that actual engine rpm is not close to target engine rpm during idling. Judge as NG
when actual engine RPM is not close to target engine RPM during idling.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously at idling after warming up engine.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criterion below is 10 seconds × 3
times.
Time Needed for Diagnosis: 10 seconds × 3 times
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK and clear NG when the continuous time of completing the malfunction criterion below becomes
more than the time needed for diagnosis (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
Engine coolant temperature≥ 75°C (167°F)
Battery voltage≥ 10.9V
Atmospheric pressure > 75.1 kPa (563
mmHg, 22.2 inHg)
Fuel level≥ 9.6 2 (2.54 US gal,
2.11 Imp gal)
After engine starting 10 seconds or more
Feedback in ISC In operation
Lambda value (left and right) 0.9 ←→ 1.1
After air condition switching ON-OFF,
OFF-ON
5.1 seconds or more
After intake manifold pressure changes
more than 4 kPa (30 mmHg, 1.2 inHg)
> 5.1 sec.
After neutral switch ON-OFF change > 5.1 sec.
Ve h i c l e s p e e d 0 k m / h ( 0 M P H )
Judgment Value
Malfunction Criteria Threshold Value
Actual - target engine RPM < –100 rpm
Feedback value for ISC Max.
Judgment Value
Malfunction Criteria Threshold Value
Actual - target engine RPM≥ –100 rpm

GD(H6DO)-165
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CT:DTC P0507 IDLE CONTROL SYSTEM RPM HIGHER THAN EXPECTED
1. OUTLINE OF DIAGNOSIS
Detect the malfunction that actual engine rpm is not close to target engine rpm during idling. Judge as NG
when actual engine RPM is not close to target engine RPM during idling.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously at idling after warming up engine.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criterion below is 10 seconds × 3
times.
Time Needed for Diagnosis: 10 seconds × 3 times
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK and clear NG when the continuous time of completing the malfunction criterion below becomes
more than the time needed for diagnosis (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
Engine coolant temperature≥ 75°C (167°F)
Battery voltage≥ 10.9V
Atmospheric pressure > 75.1 kPa (563
mmHg, 22.2 inHg)
Fuel level≥ 9.6 2 (2.54 US gal,
2.11 Imp gal)
After engine starting 10 seconds or more
Feedback in ISC In operation
Lambda value (left and right) 0.9 ←→ 1.1
After air condition switching ON-OFF,
OFF-ON
5.1 seconds or more
After intake manifold pressure changes
to more than 4 kPa (30 mmHg, 1.2 inHg)
> 5.1 sec.
After neutral switch ON-OFF change > 5.1 sec.
Ve h i c l e s p e e d 0 k m / h ( 0 M P H )
Judgment Value
Malfunction Criteria Threshold Value
Actual – Target engine RPM≥ 200 rpm
Feedback value for ISC Min.
Judgment Value
Malfunction Criteria Threshold Value
Actual – Target engine RPM < 200 rpm

GD(H6DO)-169
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CW:DTC P0519 IDLE CONTROL SYSTEM MALFUNCTION (FAIL-SAFE)
1. OUTLINE OF DIAGNOSIS
Detect malfunctions in which the engine RPM continues to rise during idling.
2. ENABLE CONDITIONS
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously if the vehicle speed at less than 4 km/h (2.49 MPH).
4. DIAGNOSTIC METHOD
Judge as NG when the continuous time until completing the all malfunction criteria below becomes more than
the time needed for diagnosis (2 seconds).
Time Needed for Diagnosis: 2 seconds
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
Normality Judgment
Judge as OK and clear NG when the continuous time until completing the malfunction criteria below be-
comes more than the time needed for diagnosis (5 seconds).
5. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
6. MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS
•When the OK driving cycle is completed 3 times in a row
•When “Clear Memory” is performed
7. FAIL SAFE
Fuel cut: Cuts off fuel only #1 and #2 cylinders, or for all cylinders according to vehicle speed, engine RPM,
and throttle position.
8. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Secondary Parameters Enable Conditions
Battery voltage≥ 10.9 V
Feedback in ISC In operation
Ve h i c l e s p e e d < 4 k m / h ( 2 . 4 9 M P H )
After engine starting 1 second or more
Judgment Value
Malfunction Criteria Threshold Value
Engine RPM - Targeted engine RPM≥ 1500 rpm
Feedback value for ISC≤ 0
Change of engine RPM for every engine
120 °CA
≥ –5 rpm
Judgment Value
Malfunction Criteria Threshold Value
Engine RPM - Targeted engine RPM < 1500 rpm

GD(H6DO)-182
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DF:DTC P1152 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (LOW) (BANK 1
SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect that λ value remains low.
Judge as NG when lambda value is abnormal in accordance with λ value of front oxygen (A/F) sensor and
running conditions such as vehicle speed, amount of intake air engine coolant temperature, sub feedback
control, etc.
2. COMPONENT DESCRIPTION
λ value = Actual air fuel ratio/Theoretical air fuel ratio
λ >1: Lean
λ < 1: Rich
(A) Electromotive force (C) Lean (D) Rich
(B) Air fuel ratio

(1) Atmosphere (3) ZrO2(4) Ceramic heater
(2) Exhaust gas
(1)
(2)
(4)
(2)
(3)
EN-01693
(C) (B) (D)
(A)

GD(H6DO)-183
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Perform diagnosis continuously at a constant speed of 20 km/h (12 MPH) or more, starting from 60 seconds
after starting the engine.
5. DIAGNOSTIC METHOD
Judge as NG when the continuous time of meeting the malfunction criteria below becomes more than the
time needed for diagnosis (10 seconds). Judge as OK and clear the NG when the malfunction criteria below
are not met.
Time Needed for Diagnosis: 10 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
6. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS
•When the OK driving cycle is completed 3 times in a row
•When “Clear Memory” is performed
8. FAIL SAFE
•Front oxygen (A/F) sensor main learning compensation: Not allowed to calculate.
•Rear oxygen sensor sub learning compensation: Not allowed to calculate.
•Purge control: Not allowed to purge
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Secondary Parameters Enable Conditions
All secondary parameters enable conditions4 seconds or more
Battery voltage > 10.9 V
Atmospheric pressure > 75.1 kPa (563 mmHg, 22.2 inHg)
Rear oxygen sensor sub feedback Execution
Rear oxygen sensor output voltage –
Feedback target voltage
–0.2 V ←→ 0.1 V
or rear oxygen sensor sub feedback
compensation coefficient
On Min.
or rear oxygen sensor sub feedback
compensation coefficient
On Max.
After engine starting 60 seconds or more
Engine coolant temperature≥ 75°C (167°F)
Ve h i c l e s p e e d≥ 20 km/h (12 MPH)
Amount of intake air≥ 8 g (0.28 oz)/s
Load change in 1/3 engine revolution.≤ 0.02g (0.001 oz)/rev
Fr o nt ox yg e n ( A / F) s en so r im pe d an c e 0 ←→ 50 Ω
Learning value of evaporation gas density≤ 0.12
To t a l t i m e o f o p e r a t i n g c a n i s t e r p u r g e 2 0 s e c o n d s o r m o r e
Ta r g e t e d l a m b d a v a l u e l o a d c o m p e n s a -
tion coefficient
–0.05 ←→ 0.05
Judgment Value
Malfunction Criteria Threshold Value
Output λ value when rear oxygen sensor
sub feedback compensation coefficient
is not at maximum limit
≤ 0.85

GD(H6DO)-184
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
DG:DTC P1153 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (HIGH) (BANK 1
SENSOR 1)
1. OUTLINE OF DIAGNOSIS
Detect that λ value remains high.
Judge as NG when lambda value is abnormal in accordance with λ value of front oxygen (A/F) sensor and
running conditions such as vehicle speed, amount of intake air engine coolant temperature, sub feedback
control, etc.
2. COMPONENT DESCRIPTION
λ value = Actual air fuel ratio/Theoretical air fuel ratio
λ >1: Lean
λ < 1: Rich
(A) Electromotive force (C) Lean (D) Rich
(B) Air fuel ratio

(1) Atmosphere (3) ZrO2(4) Ceramic heater
(2) Exhaust gas
(1)
(2)
(4)
(2)
(3)
EN-01693
(C) (B) (D)
(A)