2009 SUBARU TRIBECA ecm

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Page 1248 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual EN(H6DO)(diag)-87
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
1CHECK HARNESS BETWEEN ECM AND 
FRONT OXYGEN (A/F) SENSOR CONNEC-
TOR.
1) Start and war

Page 1250 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual EN(H6DO)(diag)-89
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
EN-03737
SBF-5
B47
12
35
46
A3D1D7D2A5D3
2
3736353452B21
E2
ECM
B11B1B10B6B7C2C3B8B9
413

Page 1251 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual EN(H6DO)(diag)-90
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
1 CHECK POWER SUPPLY TO FRONT OXY-
GEN (A/F) SENSOR.
1) Turn the ignition switch to OFF

Page 1252 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual EN(H6DO)(diag)-91
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
5CHECK OUTPUT SIGNAL OF ECM.
Measure the voltage between ECM connector 
and chassis ground.
Connector & t

Page 1254 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual EN(H6DO)(diag)-93
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
EN-03737
SBF-5
B47
12
35
46
A3D1D7D2A5D3
2
3736353452B21
E2
ECM
B11B1B10B6B7C2C3B8B9
413

Page 1255 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual EN(H6DO)(diag)-94
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
2CHECK FRONT OXYGEN (A/F) SENSOR 
HEATER CURRENT.
1) Turn the ignition switch to OFF.
2) Repair the batte

Page 1257 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual EN(H6DO)(diag)-96
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
WIRING DIAGRAM:
EN-03738
SBF-5
B47
12
35
46
A3D7D1D2A5D3
2
373635363452B21
E2
ECM
C5B15B4C4B30
431
REAROX

Page 1258 of 2453

SUBARU TRIBECA 2009 1.G Service Workshop Manual EN(H6DO)(diag)-97
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step Check Yes No
1CHECK POWER SUPPLY TO REAR OXY-
GEN SENSOR.
1) Turn the ignition switch to OFF.
2) Dis