Subaru Legacy (2005 year). Service manual — part 322
EN(H4DOTC)(diag)-57
ENGINE (DIAGNOSTICS)
Diagnostics for Engine Starting Failure
7
CHECK POOR CONTACT.
Check poor contact in ECM connector.
Is there poor contact in ECM
connector?
Repair the poor
contact in ECM
connector.
Replace the igni-
tion coil.
Step
Check
Yes
No
EN(H4DOTC)(diag)-58
ENGINE (DIAGNOSTICS)
Diagnostics for Engine Starting Failure
E: FUEL PUMP CIRCUIT
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H4DOTC)(diag)-
37, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC)(diag)-30, PROCE-
DURE, Inspection Mode.>.
WIRING DIAGRAM:
EN-03582
E
E
M
10
7
6
5
6
No.31
B362
R122
B135
B:
B137
D:
R58
B98
7
D28
B27
1
2
9
8
5
6
5
R2
4
R2
B98
FUEL PUMP
CONTROL UNIT
FUEL
PUMP
ECM
BATTERY
FUEL PUMP
RELAY
B135
B137
B362
B98
R58
2
5
4
6
1
3
B:
D:
5
6
7
8
2
1
9
4
3
10
24
22 23
25
11 12 13 14 15
26 27
28
16 17 18 19
20 21
29 30 31
32 33
34 35
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
R122
3 4
1 2
5
8 9 10
6 7
1
2 3
4 5 6 7 8
5
6
7 8
3
4
1 2
EN(H4DOTC)(diag)-59
ENGINE (DIAGNOSTICS)
Diagnostics for Engine Starting Failure
Step
Check
Yes
No
1
CHECK OPERATING SOUND OF FUEL
PUMP.
Make sure that the fuel pump operates for two
seconds when turning the ignition switch to
ON.
NOTE:
Fuel pump operation can also be executed us-
ing Subaru Select Monitor.
Refer to “Compulsory Valve Operation Check
Mode” for procedures. <Ref. to
EN(H4DOTC)(diag)-38, Compulsory Valve
Operation Check Mode.>
Does the fuel pump emit oper-
ating sound?
Check the fuel
injector circuit.
<Ref. to
EN(H4DOTC)(diag
)-60, FUEL INJEC-
TOR CIRCUIT,
Diagnostics for
Engine Starting
Failure.>
Display DTC.
<Ref. to
EN(H4DOTC)(diag
)-29, OPERATION,
Read Diagnostic
Trouble Code
(DTC).>
EN(H4DOTC)(diag)-60
ENGINE (DIAGNOSTICS)
Diagnostics for Engine Starting Failure
F: FUEL INJECTOR CIRCUIT
CAUTION:
• Check or repair only faulty parts.
• After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H4DOTC)(di-
ag)-37, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4DOTC)(diag)-30,
PROCEDURE, Inspection Mode.>.
WIRING DIAGRAM:
EN-03521
E
E
#4
1
2
SBF-7
#3
1
2
#2
1
2
B21
#1
1
2
48
42
43
44
45
C6
C5
C4
C3
1 2
5
3
6
4
2
1
B21
B136
B137
B136
E5
E5
E2
E6
E6
E16
E16
E17
B47
E17
B47
3
4
1
2
5
6
5
6
7 8
2
1
9
4
3
10
24
22 23
25
11 12 13 14 15
26 27
28
16
17 18 19 20 21
33 34
29
32
30
31
35
ECM
BATTERY
MAIN RELAY
FUEL INJECTORS
C:
B137
D:
D7
34
1 2 3 4
12 13 14 15
5 6 7 8
16 17 18 19
9 10 11
20 21 22
23 24 25 26 27 28 29 30 31 32 33
35
34
37
36
39
38
41
40
43
42
44
45
47
46
49
48
51
50
53
52
54
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
C:
D:
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