Subaru Legacy IV (2008 year). Service manual — part 583
EN(H6DO)(diag)-305
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
Check
Yes
No
1
CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM and
oil flow control solenoid valve.
3) Measure the resistance of harness between
ECM and oil flow control solenoid valve.
Connector & terminal
(B137) No. 17 — (E67) No. 1:
(B137) No. 16 — (E67) No. 2:
Is the resistance less than 1
:? Go to step 2.
Repair the harness
and connector.
NOTE:
In this case, repair
the following item:
• Open circuit of
the harness be-
tween the ECM
and oil flow control
solenoid valve
connector
• Poor contact of
coupling connector
2
CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
Measure the resistance between ECM and
chassis ground.
Connector & terminal
(B137) No. 17 — Chassis ground:
(B137) No. 16 — Chassis ground:
Is the resistance 1 M
: or
more?
Go to step 3.
Repair the short
circuit to ground in
harness between
ECM and oil flow
control solenoid
valve connector.
3
CHECK OIL FLOW CONTROL SOLENOID
VALVE.
Measure the resistance between oil flow control
solenoid valve terminals.
Terminals
No. 1 — No. 2:
Is the resistance between 6 —
12
:?
Repair the poor
contact of ECM
and oil flow control
solenoid valve con-
nector.
Replace the oil
flow control sole-
noid valve. <Ref. to
ME(H6DO)-55,
Camshaft.>
EN(H6DO)(diag)-306
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
DU:DTC P2089 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT
HIGH (BANK 1)
DTC DETECTING CONDITION:
• Immediately at fault recognition
• GENERAL DESCRIPTION <Ref. to GD(H6DO)-185, DTC P2089 INTAKE CAMSHAFT POSITION ACTU-
ATOR CONTROL CIRCUIT HIGH (BANK 1), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Improper idling
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H6DO)(diag)-52,
OPERATION, Clear Memory Mode.>, and Inspection Mode <Ref. to EN(H6DO)(diag)-44, PROCEDURE,
Inspection Mode.>.
WIRING DIAGRAM:
EN-06881
B21
E2
B137
E67
16
2
1
24
23
E67
1 2
17
ECM
OIL FLOW CONTROL
SOLENOID VALVE RH
B137
5
6
7
8
2
1
9
4
3
10
22 23
11 12 13 14 15
24 25
26
16 17
18 19 20 21
27
28 29
30 31
B21
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22
23 24 25 26 27 28 29 30 31 32 33
34
35
42
43
36
37
38
39
48
49
50
51
52
53
54
40
41
44
45
46
47
EN(H6DO)(diag)-307
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
Check
Yes
No
1
CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM and
oil flow control solenoid valve.
3) Measure the voltage between ECM and
chassis ground.
Connector & terminal
(B137) No. 17 (+) — Chassis ground (–):
(B137) No. 16 (+) — Chassis ground (–):
Is the voltage less than 1 V?
Go to step 2.
Repair the short
circuit to power in
harness between
ECM and oil flow
control solenoid
valve connector.
2
CHECK HARNESS BETWEEN ECM AND OIL
FLOW CONTROL SOLENOID VALVE.
Measure the resistance of harness between
ECM and oil flow control solenoid valve connec-
tor.
Connector & terminal
(B137) No. 17 — (E67) No. 1:
(B137) No. 16 — (E67) No. 2:
Is the resistance less than 1
:? Go to step 3.
Repair the harness
and connector.
NOTE:
In this case, repair
the following item:
• Open circuit of
the harness be-
tween the ECM
and oil flow control
solenoid valve
connector
• Poor contact of
coupling connector
3
CHECK OIL FLOW CONTROL SOLENOID
VALVE.
Measure the resistance between oil flow control
solenoid valve terminals.
Terminals
No. 1 — No. 2:
Is the resistance between 6 —
12
:?
Repair the poor
contact of ECM
and oil flow control
solenoid valve con-
nector.
Replace the oil
flow control sole-
noid valve. <Ref. to
ME(H6DO)-55,
Camshaft.>
EN(H6DO)(diag)-308
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
DV:DTC P2092 INTAKE CAMSHAFT POSITION ACTUATOR CONTROL CIRCUIT
LOW (BANK 2)
DTC DETECTING CONDITION:
• Immediately at fault recognition
• GENERAL DESCRIPTION <Ref. to GD(H6DO)-186, DTC P2092 INTAKE CAMSHAFT POSITION ACTU-
ATOR CONTROL CIRCUIT LOW (BANK 2), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
Improper idling
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H6DO)(diag)-52,
OPERATION, Clear Memory Mode.>, and Inspection Mode <Ref. to EN(H6DO)(diag)-44, PROCEDURE,
Inspection Mode.>.
WIRING DIAGRAM:
EN-06882
B21
E2
B137
E68
14
2
1
28
27
15
ECM
OIL FLOW CONTROL
SOLENOID VALVE LH
E68
1 2
B137
5
6
7
8
2
1
9
4
3
10
22 23
11 12 13 14 15
24 25
26
16 17
18 19 20 21
27
28 29
30 31
B21
1 2 3 4 5 6 7 8 9 10 11
12 13 14 15 16 17 18 19 20 21 22
23 24 25 26 27 28 29 30 31 32 33
34
35
42
43
36
37
38
39
48
49
50
51
52
53
54
40
41
44
45
46
47
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