Ecm SUBARU TRIBECA 2009 1.G Service Workshop Manual

GD(H6DO)-126
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
0.02-inch Diagnosis
Mode Mode Description Diagnosis Period
Mode A
(0 Point Compensation)
When pressure in tank is high, wait for 0 point (Near 0 kPa (0
mmHg, 0 inHg)) to return.0 — 12 seconds
Mode B
(Negative pressure introduced)
Decrease the pressure in the tank to the target value by introduc-
ing the intake hose pressure to the fuel tank.0 — 27 seconds
Mode C
(Negative pressure maintained)
Wa i t u nt i l t h e t a nk pr e ss ur e r et u r ns to t he t ar g e t ( s ta r t leve l o f P 2
calculation).0 — 20 seconds
Mode D
(Negative pressure change calcu-
lated)
Calculate the time it takes for the tank pressure to return to the P2
calculation complete pressure. If the tank pressure does not
return to the P2 calculation complete pressure, make advanced
OK judgment.
0 — 200 seconds
Mode E
(Evaporation generated amount cal-
culation)
Calculate the amount of evaporation (P1).
0 — 280 seconds
EN-03044
ModeAModeBModeCModeD
OKOKOK
Early OK 1
Cancel
Cancel
END
Cancel
Cancel
Early OK 2
OKModeE
Cancel
OK

GD(H6DO)-135
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Normality Judgment
When the following conditions are established, it is OK.
Time Needed for Diagnosis: 65 to 514 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
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
None
8. ECM OPERATION AT DTC SETTING
•Memorize the freeze frame data. (For test mode $02)
•Memorize the diagnostic value and trouble standard value. (For test mode $06)
Judgment Value
Malfunction Criteria Threshold Value DTC
P1 > Value of Map 4
* Threshold value: Figure
(Residual Fuel Amount
vs evpdset)
P0456
Map 4
Time evpdset & Fuel level 0 seconds 50 seconds 65 seconds 120 seconds 150 seconds 200 seconds
10 L (2.6 US gal, 2.2 Imp gal)
0.13 kPa
(1.0 mmHg,
0.039 inHg)
0.38 kPa
(2.88 mmHg,
0.112 inHg)
0.44 kPa
(3.28 mmHg,
0.13 inHg)
0.44 kPa
(3.28 mmHg,
0.13 inHg)
0.44 kPa
(3.28 mmHg,
0.13 inHg)
0.44 kPa
(3.28 mmHg,
0.13 inHg)
20 L (5.3 US gal, 4.4 lmp gal)
0.13 kPa
(1.0 mmHg,
0.039 inHg)
0.39 kPa
(2.91 mmHg,
0.1115 inHg)
0.41 kPa
(3.11 mmHg,
0.121 inHg)
0.41 kPa
(3.11 mmHg,
0.121 inHg)
0.41 kPa
(3.11 mmHg,
0.121 inHg)
0.41 kPa
(3.11 mmHg,
0.121 inHg)
30 L (7.9 US gal, 6.6 lmp gal)
0.13 kPa
(1.0 mmHg,
0.039 inHg)
0.39 kPa
(2.93 mmHg,
0.115 inHg)
0.39 kPa
(2.93 mmHg,
0.115 inHg)
0.39 kPa
(2.93 mmHg,
0.115 inHg)
0.39 kPa
(2.93 mmHg,
0.115 inHg)
0.39 kPa
(2.93 mmHg,
0.115 inHg)
40 L (10.6 US gal, 8.8 lmp gal)
0.13 kPa
(1.0 mmHg,
0.039 inHg)
0.37 kPa
(2.76 mmHg,
0.109 inHg)
0.37 kPa
(2.76 mmHg,
0.109 inHg)
0.37 kPa
(2.76 mmHg,
0.109 inHg)
0.37 kPa
(2.76 mmHg,
0.109 inHg)
0.37 kPa
(2.76 mmHg,
0.109 inHg)
50 L (13.2 US gal, 11.0 lmp gal)
0.13 kPa
(1.0 mmHg,
0.039 inHg)
0.34 kPa
(2.58 mmHg,
0.100 inHg)
0.34 kPa
(2.58 mmHg,
0.100 inHg)
0.34 kPa
(2.58 mmHg,
0.100 inHg)
0.34 kPa
(2.58 mmHg,
0.100 inHg)
0.34 kPa
(2.58 mmHg,
0.100 inHg)

GD(H6DO)-136
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CD:DTC P0447 EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL
CIRCUIT OPEN
1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of the drain valve.
Judge as NG when the ECM output level differs from the actual terminal level.
2. COMPONENT DESCRIPTION
The drain valve adjusts the pressure in the canister by introducing/extracting air when pressure differences
occur in the canister with the atmospheric pressure.
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criteria below becomes more than 2.5
seconds.
Time Needed for Diagnosis: 2.5 seconds
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
Normality Judgment
Judge as OK and clear the NG when the malfunction criteria below are met.
6. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
Secondary Parameters Enable Conditions
None
Judgment Value
Malfunction Criteria Threshold Value
Ignition switch ON
Battery voltage≥ 10.9 V
After engine starting 1 second or more
Te r m i n a l o u t p u t v o l t a g e w h e n E C M o u t -
puts OFF signal
Low
Judgment Value
Malfunction Criteria Threshold Value
Ignition switch ON
Battery voltage≥ 10.9 V
After engine starting 1 second or more
Te r m i n a l o u t p u t v o l t a g e w h e n E C M o u t -
puts OFF signal
High

GD(H6DO)-137
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
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
None
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)

GD(H6DO)-138
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CE:DTC P0448 EVAPORATIVE EMISSION CONTROL SYSTEM VENT CONTROL
CIRCUIT SHORTED
1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of the drain valve.
Judge as NG when the ECM output level differs from the actual terminal level.
2. COMPONENT DESCRIPTION
The drain valve adjusts the pressure in the canister by introducing/extracting air when pressure differences
occur in the canister with the atmospheric pressure.
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criteria below becomes more than 2.5
seconds.
Time Needed for Diagnosis: 2.5 seconds
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
Normality Judgment
Judge as OK and clear the NG when the malfunction criteria below are met.
6. DTC CLEAR CONDITION
•When the OK idling cycle is completed 40 times in a row
•When “Clear Memory” is performed
Secondary Parameters Enable Conditions
None
Judgment Value
Malfunction Criteria Threshold Value
Ignition switch ON
Battery voltage≥ 10.9 V
After engine starting 1 second or more
Te r m i n a l o u t p u t v o l t a g e w h e n E C M o u t -
puts OFF signal
High
Judgment Value
Malfunction Criteria Threshold Value
Ignition switch ON
Battery voltage≥ 10.9 V
After engine starting 1 second or more
Te r m i n a l o u t p u t v o l t a g e w h e n E C M o u t -
puts OFF signal
Low

GD(H6DO)-139
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
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
Pressure control solenoid valve control: Open the pressure control solenoid valve
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)

GD(H6DO)-141
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
If the maximum value – minimum value for the fuel level is less than 2 liters (0.52 US gal, 0.44 Imp gal) every
60 seconds, extend 60 seconds more and make judgment with the maximum and minimum values for the
fuel level in 120 seconds. If a difference does not appear though the time was extended 60 seconds, extend
the time (180, 240, 300 seconds) and continue the judgment. If the maximum value – minimum value for the
fuel level is more than 2 liters (0.52 US gal, 0.44 Imp gal), the diagnosis counter counts up.
Time Needed for Diagnosis: 60 seconds × more than 16 times
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
Normality Judgment
Judge as OK when the criteria below are met.
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
Purge control solenoid valve control: Purge fixed mode is prohibited.
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Judgment Value
Malfunction Criteria Threshold Value
Experienced 10 seconds of purge ON
continuous time

All the following criteria are established. Experienced
Time for establishing the following crite-
ria
10 seconds or more
Canister purge duty > 0.9%
Experienced 10 seconds of purge OFF
continuous time

All the following criteria are established. Experienced
Time for establishing the following crite-
ria
10 seconds or more
Canister purge duty = 0%
Number of times the difference between
the Max. fuel level and the Min. fuel level
ever y 60 seconds is 2 2 (0.52 US gal,
0.44 Imp gal) or more (with enable condi-
tion completed)
≥ 16 times
Maximum - Minimum tank pressure (with
enable condition completed)
< 0.05 kPa (0.375
mmHg, 0.02 inHg)
Maximum - Minimum fuel temperature
(with enable condition completed)
≥ 7°C (44.6°F)
Judgment Value
Malfunction Criteria Threshold Value
Maximum - Minimum tank pressure≥ 0.05 kPa (0.375
mmHg, 0.02 inHg)

GD(H6DO)-143
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Normality Judgment
Judge as OK when the criteria below are met.
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
Purge control solenoid valve control: Purge fixed mode is prohibited.
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Judgment Value
Malfunction Criteria Threshold Value
Fuel tank pressure≥ –7.4 kPa (–55.85
mmHg, –2.20 inHg)
Battery voltage≥ 10.9 V

GD(H6DO)-145
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time until completing the malfunction criteria below becomes 15 second
or more.
Time Needed for Diagnosis: 15 seconds
Malfunction Indicator Light: Illuminates as soon as a malfunction occurs.
Normality Judgment
Judge as OK when the criteria below are met.
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
Purge control solenoid valve control: Purge fixed mode is prohibited.
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)
Judgment Value
Malfunction Criteria Threshold Value
Fuel tank pressure≥ 7.98 kPa (59.85
mmHg, 2.36 inHg)
Fuel temperature < 35°C (95°F)
Atmospheric pressure 75.1 kPa (563 mmHg,
22.2 inHg)
Judgment Value
Malfunction Criteria Threshold Value
Fuel tank pressure < 7.98 kPa (59.85
mmHg, 2.36 inHg)

GD(H6DO)-147
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CK:DTC P0458 EVAPORATIVE EMISSION CONTROL SYSTEM PURGE CON-
TROL VALVE CIRCUIT LOW
1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of the purge control solenoid valve.
Judge as NG when the ECM output level differs from the actual terminal level.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis after starting the engine.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time until completing the malfunction criteria below becomes more than
time needed for diagnosis (2.5 seconds).
Time Needed for Diagnosis: 2.5 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
(A) To canister (B) To intake manifold
Secondary Parameters Enable Conditions
Ignition switch ON
Battery voltage≥ 10.9 V
After engine starting 1 second or more
Judgment Value
Malfunction Criteria Threshold Value
Duty ratio of “ON” < 75%
Te r m i n a l o u t p u t v o l t a g e L o w
EN-02197
( A )( B )