2009 SUBARU TRIBECA radiator

EN(H6DO)(diag)-163
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AJ:DTC P0128 COOLANT THERMOSTAT (COOLANT TEMPERATURE BELOW
THERMOSTAT REGULATING TEMPERATURE)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE), Diagnostic Trouble Code
(DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Thermostat remains open.
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
Step Check Yes No
1CHECK VEHICLEHas the vehicle driven or idled
with the engine partially sub-
merged under water?
In this case, it is
not necessary to
inspect DTC
P0128.
Go to step 2.
2CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check the appro-
priate DTC using
the “List of Diag-
nostic Trouble
Code (DTC)”.
EN(H6DO)(diag)-
69, List of Diag-
nostic Trouble
Code (DTC).>
Go to step 3.
3CHECK ENGINE COOLANT.Are the coolant level and mix-
ture ratio of engine coolant to
anti-freeze solution correct?
Go to step 4.Replace engine
coolant. CO(H6DO)-10,
REPLACEMENT,
Engine Coolant.>
4CHECK RADIATOR FAN.
1) Start the engine.
2) Check radiator fan operation.
Does the radiator fan continu-
ously rotate for more than 3
minutes during idling?
Repair radiator fan
circuit. CO(H6DO)-21,
Radiator Main Fan
and Fan Motor.>
and CO(H6DO)-25,
Radiator Sub Fan
and Fan Motor.>
Replace the ther-
mostat. CO(H6DO)-14,
Thermostat.>

EN(H6DO)(diag)-294
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
CP:DTC P0464 FUEL LEVEL SENSOR CIRCUIT INTERMITTENT
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION TERMITTENT, Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
CQ:DTC P0483 COOLING FAN RATIONALITY CHECK
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
•Occurrence of noise
•Overheating
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
NOTE:
If the vehicle, with the engine idling, is placed very close to a wall or another vehicle, preventing normal cool-
ing function, the OBD system may detect malfunction.
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is DTC P0464 displayed on the
display?
Check the combi-
nation meter.
Combination
Meter.>
Te m p o r a r y p o o r
contact occurs.
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is any other DTC displayed? Check the appro-
priate DTC using
the “List of Diag-
nostic Trouble
Code (DTC)”.
EN(H6DO)(diag)-
69, List of Diag-
nostic Trouble
Code (DTC).>
Check radiator fan,
fan motor and
thermostat and if
thermostat is
stuck, replace
thermostat. to CO(H6DO)-21,
Radiator Main Fan
and Fan Motor.>
CO(H6DO)-25,
Radiator Sub Fan
and Fan Motor.>

EN(H6DO)(diag)-303
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
DA:DTC P0638 THROTTLE ACTUATOR CONTROL RANGE/PERFORMANCE
(BANK 1)
NOTE:
For the diagnostic procedure, refer to DTC P2101. ACTUATOR CONTROL MOTOR CIRCUIT RANGE/PERFORMANCE, Diagnostic Procedure with Diagnos-
tic Trouble Code (DTC).>
DB:DTC P0691 COOLING FAN 1 CONTROL CIRCUIT LOW
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION LOW, Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
•Radiator fan does not operate properly.
•Overheating
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
Step Check Yes No
1CHECK INPUT VOLTAGE FROM ECM.
1) Turn the ignition switch to ON.
2) Measure the voltage between ECM con-
nector and chassis ground.
Connector & terminal
(B134) No. 7 (+) — Chassis ground (–):
(B135) No. 2 (+) — Chassis ground (–):
Is the voltage 10 — 13 V? Go to step 2.Repair the open or
ground short cir-
cuit of power sup-
ply circuit.
2CHECK INPUT VOLTAGE FROM ECM.
1) Start the engine.
2) Measure the voltage between ECM con-
nector and chassis ground.
Connector & terminal
(B134) No. 7 (+) — Chassis ground (–):
(B135) No. 2 (+) — Chassis ground (–):
Is the voltage 13 — 15 V? Go to step 3.Repair the open or
ground short cir-
cuit of power sup-
ply circuit.
3CHECK ECM GROUND HARNESS.
Measure the voltage between ECM connector
and chassis ground.
Connector & terminal
(B134) No. 3 (+) — Chassis ground (–):
(B134) No. 5 (+) — Chassis ground (–):
(B137) No. 1 (+) — Chassis ground (–):
(B137) No. 2 (+) — Chassis ground (–):
(B137) No. 3 (+) — Chassis ground (–):
(B137) No. 7 (+) — Chassis ground (–):
Is the voltage less than 1 V? Repair poor con-
tact in ECM con-
nector. Replace
the ECM if defec-
tive. FU(H6DO)-32,
Engine Control
Module (ECM).>
Fur ther tighten the
engine ground ter-
minal.
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is DTC P0691 displayed? Check the radiator
fan system. to CO(H6DO)-7,
Radiator Fan Sys-
tem.>
Te m p o r a r y p o o r
contact occurs.

EN(H6DO)(diag)-304
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
DC:DTC P0692 COOLING FAN 1 CONTROL CIRCUIT HIGH
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION HIGH, Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
•Radiator fan does not operate properly.
•Overheating
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode OPERATION, Clear Memory Mode.> and Inspection Mode Inspection Mode.>.
DD:DTC P0700 TRANSMISSION CONTROL SYSTEM (MIL REQUEST)
NOTE:
For the diagnostic procedure, refer to AT section.
DE:DTC P1152 O2 SENSOR CIRCUIT RANGE/PERFORMANCE (LOW) (BANK 1
SENSOR 1)
NOTE:
For diagnostic procedure, refer to DTC P1153. CIRCUIT RANGE/PERFORMANCE (HIGH) (BANK 1 SENSOR 1), Diagnostic Procedure with Diagnostic
Trouble Code (DTC).>
Step Check Yes No
1CHECK ANY OTHER DTC ON DISPLAY.Is DTC P0692 displayed? Check the radiator
fan system. to CO(H6DO)-7,
Radiator Fan Sys-
tem.>
Te m p o r a r y p o o r
contact occurs.

GD(H6DO)-49
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
•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)

GD(H6DO)-51
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
•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)

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)

GD(H6DO)-160
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
CQ:DTC P0483 COOLING FAN RATIONALITY CHECK
1. OUTLINE OF DIAGNOSIS
Detect the function abnormality of the radiator fan.
Judge as NG when the engine coolant temperature slowly decreases even when the radiator fan is rotating.
2. ENABLE CONDITIONS
Diagnostic enable condition is established if the radiator fan changes from OFF → ON when all of the con-
ditions below are met.
When one of the conditions below is not met, the diagnostic enable condition is not established.
3. GENERAL DRIVING CYCLE
Perform the diagnosis continuously when the radiator fan changes from OFF → ON when idling.
4. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criteria below becomes more than 5
minutes.
Time Needed for Diagnosis: 5 minutes
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.
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)
Secondary Parameters Enable Conditions
Engine speed 500 — 900 rpm
Idle switch ON
Ve h i c l e s p e e d < 2 k m / h ( 1 M P H )
Battery voltage≥ 10.9 V
Judgment Value
Malfunction Criteria Threshold Value
Engine coolant temperature≥ 102°C (216°F)
Engine coolant temperature Does not decrease
Judgment Value
Malfunction Criteria Threshold Value
Engine coolant temperature Decreases