Subaru Legacy 2003 Service Manual page 872

DIAGNOSTICS FOR ENGINE STARTING FAILURE
F: FUEL INJECTOR CIRCUIT
CAUTION:
• Check or repair only faulty parts.
• After repair or replacement of faulty parts, conduct CLEAR MEMORY and INSPECTION MODES.
<Ref. to EN(H4SOw/oOBD)-28, OPERATION, Clear Memory Mode.> and <Ref. to EN(H4SOw/oOBD)-
26, OPERATION, Inspection Mode.>
• WIRING DIAGRAM:
MAIN RELAY
6
4
5
3
2
1
B47
FUEL INJECTOR
No. 1
E5 E16
E6 E17
1 2
A: B134
1 2 3 4
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
1 CHECK OPERATION OF EACH FUEL INJEC-
TOR.
While cranking the engine, check that each
fuel injector emits "operating" sound. Use a
sound scope or attach a screwdriver to injector
for this check.
Is the fuel injector emits "operating" sound?
E5 E16
FUEL INJECTOR
No. 2
B47
1 2
3 4
5 6
5 6 7 8
34 35
Step
EN(H4SOw/oOBD)-53
LHD 6 LHD
B61 F44
A: C:
B134 B136
ECM
E6
FUEL INJECTOR
No. 3
F44
1 2 3 4
5 6 7 8
C:
B136
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
Value
Fuel injector emits "operating"
sound.
ENGINE (DIAGNOSTICS)
BATTERY
SBF-5
B22
E3
E17
FUEL INJECTOR
No. 4
B22
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
Yes
Check fuel pres- Go to step 2.
sure. <Ref. to
ME(H4SO)-28,
INSPECTION,
Fuel Pressure.>
EN-01049
No