ECU SUBARU TRIBECA 2009 1.G Service Workshop Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 2009, Model line: TRIBECA, Model: SUBARU TRIBECA 2009 1.GPages: 2453, PDF Size: 46.32 MB
Page 1322 of 2453
EN(H6DO)(diag)-161
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AI: DTC P0126 INSUFFICIENT COOLANT TEMPERATURE FOR STABLE OPER-
ATION
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
TROUBLE SYMPTOM:
•Hard to start
•Erroneous idling
•Poor driving performance
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
WIRING DIAGRAM:
EN-03661
2934
198
B134ECM
12
E2
B21
E8
ENGINECOOLANTTEMPERATURE SENSOR
E8
B21
123412131415567816171819910 1120212223 24 25 2627 28 29 3031 32 33
3534 37363938 41404342 4445 47464948 51505352 54
12
B134
85610 11 12 13 14 157213416
3019 20 2228 29
91718252123 24323126 2733 34
Page 1324 of 2453
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
(DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Thermostat remains open.
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory 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)”.
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.
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.
Radiator Main Fan
and Fan Motor.>
and
Radiator Sub Fan
and Fan Motor.>
Replace the ther-
mostat.
Thermostat.>
Page 1331 of 2453
EN(H6DO)(diag)-170
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AM:DTC P0133 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 1)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
Page 1337 of 2453
EN(H6DO)(diag)-176
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AO:DTC P0137 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 1 SENSOR 2)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
Page 1341 of 2453
EN(H6DO)(diag)-180
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AP:DTC P0138 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 1 SENSOR 2)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
Page 1345 of 2453
EN(H6DO)(diag)-184
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AQ:DTC P0139 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 1 SENSOR 2)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
Page 1348 of 2453
EN(H6DO)(diag)-187
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AR:DTC P0140 O2 SENSOR CIRCUIT NO ACTIVITY DETECTED (BANK 1 SEN-
SOR 2)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
Page 1358 of 2453
EN(H6DO)(diag)-197
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AU:DTC P0153 O2 SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
Page 1364 of 2453
EN(H6DO)(diag)-203
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AW:DTC P0157 O2 SENSOR CIRCUIT LOW VOLTAGE (BANK 2 SENSOR 2)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode
Page 1368 of 2453
EN(H6DO)(diag)-207
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
AX:DTC P0158 O2 SENSOR CIRCUIT HIGH VOLTAGE (BANK 2 SENSOR 2)
DTC DETECTING CONDITION:
•Detected when two consecutive driving cycles with fault occur.
•GENERAL DESCRIPTION
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode