2009 SUBARU TRIBECA Service Workshop Manual

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Page 1665 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual GD(H6DO)-53
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
8. FAIL SAFE
Stop the continuity to the electronic control throttle motor. (Throttle opening is fixed to 6.375°.)
9. E

Page 1666 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual GD(H6DO)-54
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
AG:DTC P0123 THROTTLE/PEDAL POSITION SENSOR/SWITCH “A” CIRCUIT
HIGH INPUT
1. OUTLINE OF DIAGNOSIS
Detect the open

Page 1667 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual GD(H6DO)-55
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
8. FAIL SAFE
Stop the continuity to the electronic control throttle motor. (Throttle opening is fixed to 6.375°.)
9. E

Page 1668 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual GD(H6DO)-56
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
AH:DTC P0125 INSUFFICIENT COOLANT TEMPERATURE FOR CLOSED LOOP
FUEL CONTROL
1. OUTLINE OF DIAGNOSIS
Detect the malfunct

Page 1669 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual GD(H6DO)-57
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Timer for diagnosis after engine start
a. Timer stop at fuel cut.
b. During the driving conditions except a) above, tim

GD(H6DO)-57
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Timer for diagnosis after engine start
a. Timer stop at fuel cut.
b. During the driving conditions except a) above, timer count up by
64 milliseconds + TWCNT milliseconds at every 64 milliseconds.
TWCNT is defined as follows,
TWCNT = 0 at idle switch ON,
TWCNT show on the following table at idle switch OFF.
Judgment value of timer after engine starting
t = 429.5 – 28.605 × Ti
Ti is the lowest coolant temperature after starting the engine.
Time Needed for Diagnosis: To be determined. (It is varied by the Min. engine coolant temperature and en-
gine conditions such as vehicle speed and engine coolant temperature.)
Malfunction Indicator Light Illumination: Illuminates when malfunctions occur in 2 continuous driving cy-
cles.
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
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
•Engine coolant temperature sensor process: Engine coolant temperature is fixed at 70°C (158°F).
•ISC Feedback: Calculate target engine RPM as engine coolant temperature 70°C (158°F).
•ISC learning: Not allowed to learn.
•Air conditioner control: Not allowed to turn the air conditioner to ON.
•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)
Te m p e r a t u r e
°C (°F)
Ve h i c l e s p e e d k m / h ( M P H )
0 (0) 8 (4.97) 16 (9.94) 24 (14.9) 32 (19.9) 40 (24.9) 48 (29.8) 56 (34.8)
–20 (–4) 0 ms 37.2 ms 74.3 ms 111.4 ms 126.7 ms 141.9 ms 163.6 ms 185.3 ms
–10 (14) 0 ms 27.4 ms 54.8 ms 82.2 ms 99.7 ms 117.1 ms 136.0 ms 154.8 ms
0 (32) 0 ms 17.6 ms 35.3 ms 52.9 ms 72.6 ms 92.3 ms 108.3 ms 124.3 ms
10 (50) 0 ms 7.9 ms 15.8 ms 23.7 ms 45.6 ms 67.6 ms 80.7 ms 93.9 ms
20 (68) 0 ms 7.9 ms 15.8 ms 23.7 ms 45.6 ms 67.6 ms 80.7 ms 93.9 ms
Judgment Value
Malfunction Criteria Threshold Value
Engine coolant temperature≥ 20°C (68°F)

Page 1670 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual GD(H6DO)-58
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
AI: DTC P0126 INSUFFICIENT COOLANT TEMPERATURE FOR STABLE OPER-
ATION
1. OUTLINE OF DIAGNOSIS
Detect the malfunction of

Page 1671 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual GD(H6DO)-59
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG if the continuous time when the following conditions are establis

Page 1672 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual GD(H6DO)-60
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
AJ:DTC P0128 COOLANT THERMOSTAT (COOLANT TEMPERATURE BELOW
THERMOSTAT REGULATING TEMPERATURE)
1. OUTLINE OF DIAGNOSIS

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