Subaru Legacy (2005 year). Service manual — part 221
EN(H4SO 2.5)(diag)-169
ENGINE (DIAGNOSTICS)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
6
CHECK PURGE CONTROL SOLENOID
VALVE.
1) Turn the ignition switch to OFF.
2) Measure the resistance between purge
control solenoid valve terminals.
Terminals
No. 1 — No. 2:
Is the resistance less than 1
Ω?
Replace the purge
control solenoid
valve <Ref. to
EC(H4SO 2.0)-7,
Purge Control
Solenoid Valve.>
and ECM <Ref. to
FU(H4SO 2.5)-37,
Engine Control
Module (ECM).>.
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 ECM.
<Ref. to FU(H4SO
2.5)-37, Engine
Control Module
(ECM).>
Step
Check
Yes
No
EN(H4SO 2.5)(diag)-170
ENGINE (DIAGNOSTICS)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AN:DTC P0462 FUEL LEVEL SENSOR “A” CIRCUIT LOW
DTC DETECTING CONDITION:
Detects when malfunction occurs in 2 continuous driving cycles.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO 2.5)(diag)-
40, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.5)(diag)-33, Inspection Mode.>.
AO:DTC P0463 FUEL LEVEL SENSOR “A” CIRCUIT HIGH
DTC DETECTING CONDITION:
Detects when malfunction occurs in 2 continuous driving cycles.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO 2.5)(diag)-
40, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.5)(diag)-33, Inspection Mode.>.
Step
Check
Yes
No
1
CHECK OPTION CODE.
Is the option code EC, EK, EH,
ER or K4?
Refer to EN(H4SO
2.0) section. <Ref.
to EN(H4SO
2.0)(diag)-64, List
of Diagnostic Trou-
ble Code (DTC).>
NOTE:
Fuel injection sys-
tem for KA and KS
model is the same
as 2.0 L model.
2
CHECK ANY OTHER DTC ON DISPLAY.
Is DTC P0462 displayed on the
Subaru Select Monitor?
Check the combi-
nation meter sys-
tem. <Ref. to IDI-3,
Combination
Meter System.>
Temporary poor
contact occurs.
Step
Check
Yes
No
1
CHECK OPTION CODE.
Is the option code EC, EK, EH,
ER or K4?
Refer to EN(H4SO
2.0) section. <Ref.
to EN(H4SO
2.0)(diag)-64, List
of Diagnostic Trou-
ble Code (DTC).>
NOTE:
Fuel injection sys-
tem for KA and KS
model is the same
as 2.0 L model.
2
CHECK ANY OTHER DTC ON DISPLAY.
Is DTC P0463 displayed on the
Subaru Select Monitor?
Check the combi-
nation meter sys-
tem. <Ref. to IDI-3,
Combination
Meter System.>
Temporary poor
contact occurs.
EN(H4SO 2.5)(diag)-171
ENGINE (DIAGNOSTICS)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
AP:DTC P0500 VEHICLE SPEED SENSOR “A”
DTC DETECTING CONDITION:
Immediately at fault recognition
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO 2.5)(diag)-
40, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.5)(diag)-33, Inspection Mode.>.
AQ:DTC P0512 STARTER REQUEST CIRCUIT
DTC DETECTING CONDITION:
Detects when malfunction occurs in 2 continuous driving cycles.
TROUBLE SYMPTOM:
Failure of engine to start
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H4SO 2.5)(diag)-
40, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO 2.5)(diag)-33, Inspection Mode.>.
Step
Check
Yes
No
1
CHECK OPTION CODE.
Is the option code EC, EK, EH,
ER or K4?
Refer to EN(H4SO
2.0) section. <Ref.
to EN(H4SO
2.0)(diag)-64, List
of Diagnostic Trou-
ble Code (DTC).>
NOTE:
Fuel injection sys-
tem for KA and KS
model is the same
as 2.0 L model.
2
CHECK DTC OF ABS.
Check DTC of ABS.
Is DTC of ABS displayed?
Perform the diag-
nosis according to
DTC. <Ref. to
ABS(diag)-38, List
of Diagnostic Trou-
ble Code (DTC).>
Repair the poor
contact in ECM.
EN(H4SO 2.5)(diag)-172
ENGINE (DIAGNOSTICS)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
WIRING DIAGRAM:
• EC, EK, EH, ER and K4 model
• KA and KS model
NOTE:
Fuel injection system for KA and KS model is the same as 2.0 L model. Refer to EN(H4SO 2.0) section.
EN-03453
D8
B32
No.21
B225
MAIN SBF
SBF-6
E
ECM
B137
D:
B135
B:
B72
B14
M
2
3
B225
B137
B72
D:
B135
B:
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 36
39 40
37
38
1
2
9
3
4
5
6
7
8
1
2
7
8 9
5
6
3
4
10 11 12
19 20 21
29
30 31
13 14 15 16 17
27
28
18
22 23
24 25
26
1
2
7
8 9
5
6
3
4
10 11 12
19
20 21
29 30 31
13 14 15 16 17
27
28
18
22 23
24 25
26
32 33
34 35
1
3
4 5 6
2
BATTERY
IGNITION
SWITCH
STARTER
RELAY
STARTER MOTOR
LHD
LHD
RHD
RHD
16
14
15
13
15
13
16
14
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