Subaru 2002 IMPREZA Service Manual page 890

DIAGNOSTICS FOR ENGINE STARTING FAILURE
ENGINE (DIAGNOSTICS)
E: FUEL PUMP CIRCUIT
CAUTION:
After repair or replacement of faulty parts, conduct CLEAR MEMORY and INSPECTION MODES. <Ref.
to EN(w/oOBD)-30, OPERATION, Clear Memory Mode.> and <Ref. to EN(w/oOBD)-28, OPERATION,
Inspection Mode.>
• WIRING DIAGRAM:
FUEL PUMP
RELAY
2
1
3
4
B46
FUEL PUMP
1
4
R58
B46 B72
1 2
1 2
3 4
3 4
Step
1 CHECK OPERATING SOUND OF FUEL
PUMP.
Make sure that the fuel pump is in operation for
2 seconds when turning ignition switch to ON.
NOTE:
Fuel pump operation check can also be execut-
ed using the Subaru Select Monitor. For the
procedure, refer to "COMPULSORY VALVE
OPERATION CHECK MODE".<Ref. to EN(w/
oOBD)-31, OPERATION, Compulsory Valve
Operation Check Mode.>
LHD 2 LHD
IGNITION
B61 F44 B72
SWITCH
No.11
4
B97
R1
1
3
R57 R15
R58 F44
1 2 3
1 2 3 4
4 5 6
5 6 7 8
EN(w/oOBD)-56
SBF-5
SBF-4 SBF-1
1
2 B134 ECM
1
LHD :7
RHD :5
2 WITH
IMMOBILIZER :29
WITHOUT
IMMOBILIZER :16
B97 R15
1 2
1 2 3 4
3 4 5 6
5 6 7 8
Check
Does the fuel pump produce
operating sound?
BATTERY
B134
1 2 3 4 5 6
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
Yes
Check the fuel Go to step 2.
injector circuit.
<Ref. to EN(w/
oOBD)-60, FUEL
INJECTOR CIR-
CUIT, Diagnostics
for Engine Start-
ing Failure.>
7 8
34 35
EN1399
No