Subaru Legacy IV (2008 year). Service manual — part 522
EN(H6DO)(diag)-61
Malfunction Indicator Light
ENGINE (DIAGNOSTICS)
D: MALFUNCTION INDICATOR LIGHT DOES NOT GO OFF
DIAGNOSIS:
The malfunction indicator light circuit is shorted.
TROUBLE SYMPTOM:
Although malfunction indicator light comes on when the engine runs, DTC is not shown on the Subaru Select
Monitor display.
WIRING DIAGRAM:
Step
Check
Yes
No
1
CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM.
3) Turn the ignition switch to ON.
Does the malfunction indicator
light illuminate?
Repair the short
circuit of harness
between combina-
tion meter and
ECM connector.
Replace the ECM.
<Ref. to
FU(H6DO)-38,
Engine Control
Module (ECM).>
1
3
4 5 6
2
1 2 3 4
5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
2
1
3 4
6 7 8 9
22
21
20
19
18
17
16
15
14
13
12
11
5
16
10 11 12 13 14 15
25
24
30
9
8
7
17 18 19 20
28
21 22 23
29
32
31
1
2
3
4
5
6
27
26
33 34 35
SBF-6
MAIN SBF
3
1
B72
BATTERY
E
No.5
i10
3
i3
B38
8
16
B136
11
ECM
B72
B136
i10
B38
10
EN-05649
IGNITION
SWITCH
COMBINATION
METER
EN(H6DO)(diag)-62
Malfunction Indicator Light
ENGINE (DIAGNOSTICS)
E: MALFUNCTION INDICATOR LIGHT DOES NOT BLINK
DIAGNOSIS:
• The malfunction indicator light circuit is open or shorted.
• The delivery (test) mode connector circuit is open.
TROUBLE SYMPTOM:
Malfunction indicator light does not blink during Inspection Mode.
WIRING DIAGRAM:
3
B72
B75
B76
i10
B135
B:
SBF-6
1
C11
C6
B27
ECM
B72
8
MAIN SBF
No.5
*
1
1
B75
1
2
1
2
16
i3
B38
E
3
B136
C:
B135
B136
B:
C:
1
3
4 5 6
2
i10
B38
1 2 3 4
5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
2
1
3 4
6 7 8 9 10
22
21
20
19
18
17
16
15
14
13
12
11
5
1 2 3 4
5 6 7 8
B122
*
*
: TERMINAL No. OPTIONAL
ARRANGEMENT
B122
5
6
7
2
1
3
4
29
10 11 12 13 14 15
25
24
16
30
9
8
17 18 19
20
28
21 22 23
32
31
26 27
33
34 35
16
10 11 12 13 14 15
25
24
30
9
8
7
17 18 19 20
28
21 22 23
29
32
31
1
2
3
4
5
6
27
26
33 34 35
EN-05650
DELIVERY (TEST) MODE CONNECTOR
BATTERY
IGNITION
SWITCH
COMBINATION
METER
EN(H6DO)(diag)-63
Malfunction Indicator Light
ENGINE (DIAGNOSTICS)
Step
Check
Yes
No
1
CHECK STATUS OF MALFUNCTION INDI-
CATOR LIGHT.
1) Turn the ignition switch to OFF.
2) Disconnect the delivery (test) mode connec-
tor.
3) Turn the ignition switch to ON. (engine OFF)
Does the malfunction indicator
light illuminate?
Go to step 2.
Repair the mal-
function indicator
light circuit. <Ref.
to
EN(H6DO)(diag)-
59, MALFUNC-
TION INDICATOR
LIGHT DOES NOT
COME ON, Mal-
function Indicator
Light.>
2
CHECK HARNESS BETWEEN COMBINA-
TION METER AND ECM CONNECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM.
3) Turn the ignition switch to ON.
Does the malfunction indicator
light illuminate?
Repair the ground
short circuit of har-
ness between
combination meter
and ECM connec-
tor.
Go to step 3.
3
CHECK HARNESS BETWEEN DELIVERY
(TEST) MODE CONNECTOR AND ECM CON-
NECTOR.
1) Turn the ignition switch to OFF.
2) Disconnect the connectors from ECM.
3) Measure the resistance of harness between
delivery (test) mode connector and ECM con-
nector.
Connector & terminal
(B76) No. 1 — (B136) No. 6
(B75) No. 1 — (B135) No. 27
Is the resistance less than 1
:? Go to step 4.
Repair the harness
and connector.
NOTE:
In this case, repair
the following item:
• Open circuit of
harness between
ECM and delivery
(test) mode con-
nector
• Poor contact in
joint connector
4
CHECK POOR CONTACT.
Check for poor contact of the ECM connector.
Is there poor contact in ECM
connector?
Repair the poor
contact of ECM
connector.
Replace the ECM.
<Ref. to
FU(H6DO)-38,
Engine Control
Module (ECM).>
EN(H6DO)(diag)-64
Malfunction Indicator Light
ENGINE (DIAGNOSTICS)
F: MALFUNCTION INDICATOR LIGHT REMAINS BLINKING
DIAGNOSIS:
The delivery (test) mode connector circuit is shorted.
TROUBLE SYMPTOM:
Malfunction indicator light blinks when delivery (test) mode connector is not connected.
WIRING DIAGRAM:
3
B72
B75
B76
i10
B135
B:
SBF-6
1
C11
C6
B27
ECM
B72
8
MAIN SBF
No.5
*
1
1
B75
1
2
1
2
16
i3
B38
E
3
B136
C:
B135
B136
B:
C:
1
3
4 5 6
2
i10
B38
1 2 3 4
5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20
2
1
3 4
6 7 8 9 10
22
21
20
19
18
17
16
15
14
13
12
11
5
1 2 3 4
5 6 7 8
B122
*
*
: TERMINAL No. OPTIONAL
ARRANGEMENT
B122
5
6
7
2
1
3
4
29
10 11 12 13 14 15
25
24
16
30
9
8
17 18 19
20
28
21 22 23
32
31
26 27
33
34 35
16
10 11 12 13 14 15
25
24
30
9
8
7
17 18 19 20
28
21 22 23
29
32
31
1
2
3
4
5
6
27
26
33 34 35
EN-05650
DELIVERY (TEST) MODE CONNECTOR
BATTERY
IGNITION
SWITCH
COMBINATION
METER
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