B2M0557A
4) Measure resistance of harness connector between
ECM connector and fuel injector on faulty cylinders.
: Connector & terminal
#1 (B84) No. 96—(E5) No. 1:
#2 (B84) No. 70—(E16) No. 1:
#3 (B84) No. 44—(E6) No. 1:
#4 (B84) No. 16—(E17) No. 1:
Is the resistance less than 1Ω?
: Go to step10AA3.
: Repair open circuit in harness between ECM and
fuel injector connector.
G2M0464
10AA3
CHECK FUEL INJECTOR.
Measure resistance between fuel injector terminals on
faulty cylinder.
: Terminals
No. 1—No. 2:
Is the resistance between 5 and 20Ω?
: Replace faulty fuel injector.
: Go to step10AA4.
OBD0715A
10AA4
CHECK POWER SUPPLY LINE.
1) Turn ignition switch to ON.
2) Measure voltage between fuel injector and engine
ground on faulty cylinders.
: Connector & terminal
#1 (E5) No. 2 (+)—Engine ground ( ):
#2 (E16) No. 2 (+)—Engine ground ( ):
#3 (E6) No. 2 (+)—Engine ground ( ):
#4 (E17) No. 2 (+)—Engine ground ( ):
Is the voltage more than 10 V?
: Repair poor contact in all connectors in fuel injec-
tor circuit.
: Repair harness and connector.
NOTE:
In this case, repair the following:
Open circuit in harness between main relay and fuel
injector connector on faulty cylinders
Poor contact in main relay connector
Poor contact in fuel injector connector on faulty cylinders
206
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Failure of engine to start
Engine stalls.
Erroneous idling
Rough driving
WIRING DIAGRAM:
B2M0555
CAUTION:
Check or repair only faulty cylinders.
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
208
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles
B2M0556A
10AE1
CHECK OUTPUT SIGNAL FROM ECM.
1) Turn ignition switch to ON.
2) Measure voltage between ECM connector and chassis
ground on faulty cylinders.
: Connector & terminal
#1 (B84) No. 96 (+)—Chassis ground ( ):
#2 (B84) No. 70 (+)—Chassis ground ( ):
#3 (B84) No. 44 (+)—Chassis ground ( ):
#4 (B84) No. 16 (+)—Chassis ground ( ):
Is the voltage more than 10 V?
: Go to step10AE2.
: Go to next.
: Is there poor contact in ECM connector?
: Repair poor contact in ECM connector.
: Replace ECM.
B2M0556A
10AE2CHECK HARNESS BETWEEN FUEL
INJECTOR AND ECM CONNECTOR.
1) Turn ignition switch to OFF.
2) Disconnect connector from fuel injector on faulty cylin-
der.
3) Turn ignition switch to ON.
4) Measure voltage between ECM connector and chassis
ground on faulty cylinders.
: Connector & terminal
#1 (B84) No. 96 (+)—Chassis ground ( ):
#2 (B84) No. 70 (+)—Chassis ground ( ):
#3 (B84) No. 44 (+)—Chassis ground ( ):
#4 (B84) No. 16 (+)—Chassis ground ( ):
Is the voltage more than 10 V?
: Repair battery short circuit in harness between
ECM and fuel injector. After repair, replace ECM.
: Go to next step 5).
G2M0464
5) Turn ignition switch to OFF.
6) Measure resistance between fuel injector terminals on
faulty cylinder.
: Terminals
No. 1—No.2:
Is the resistance less than 1Ω?
: Replace faulty fuel injector and ECM.
: Go to next.
209
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
Immediately at fault recognition (A misfire which could
damage catalyst occurs.)
TROUBLE SYMPTOM:
Engine stalls.
Erroneous idling
Rough driving
WIRING DIAGRAM:
B2M1309
CAUTION:
After repair or replacement of faulty parts, conduct
CLEAR MEMORY and INSPECTION MODES.
212
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles
10AI1CHECK DTC P0101, P0102, P0103, P0116,
P0117, P0125, P0261, P0262, P0264,
P0265, P0267, P0268, P0270 OR P0271
ON DISPLAY.
: Does the Subaru select monitor or OBD-II
general scan tool indicate DTC P0101,
P0102, P0103, P0116, P0117, P0125, P0261,
P0262, P0264, P0265, P0267, P0268, P0270
or P0271?
: Inspect DTC P0101, P0102, P0103, P0116,
P0117, P0125, P0261, P0262, P0264, P0265,
P0267, P0268, P0270 or P0271 using“10. Diag-
nostics Chart with Trouble Code”.
[T10A0].>
NOTE:
In this case, it is not necessary to inspect DTC P0301,
P0302, P0303 and P0304.
: Go to step10AI2.
OBD0145A
10AI2CONNECT SUBARU SELECT MONITOR
AND READ DATA.
1) Turn ignition switch to OFF.
2) Connect Subaru Select Monitor to the data link connec-
tor.
3) Turn ignition switch to ON and turn Subaru Select Moni-
tor switch to ON.
B2M0759
4) Read data on Subaru Select Monitor.
Designate mode use function key.
Function mode: F42
NOTE:
F42: Maximum and minimum EGR system pressure value
are indicated at the same time.
5) Print out the displayed data on paper.
G3M0152
6) Clear memory on Subaru Select Monitor.
Designate mode use function key.
Press [F], [C], [0], [ENT] in that order.
213
2-7ON-BOARD DIAGNOSTICS II SYSTEM
10. Diagnostic Chart with Trouble Code for LHD Vehicles