Subaru Legacy III (2000-2003 year). Service manual — part 369
EN(H6DO)-278
ENGINE (DIAGNOSTICS)
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
BS:DTC P0662 — INTAKE MANIFOLD TUNING VALVE CONTROL CIRCUIT
HIGH - BANK 1 —
• DTC DETECTING CONDITION:
• Two consecutive driving cycles with fault
• TROUBLE SYMPTOM:
• Erroneous idling
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H6DO)-54, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H6DO)-47, OPERATION, Inspec-
tion Mode.>.
• WIRING DIAGRAM:
EN-01097
23
B20
E1
1
2
7
4
E30
SBF-5
B137
B20
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
E30
B47
3
4
1
2
5
6
BATTERY
B137
ECM
B47
MAIN RELAY
INDUCTION VALVE
CONTROL SOLENOID
1
2
3
5
4
6
1 2
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
F46
3 4
1 2
B108
F46
2
RHD
LHD
LHD
RHD
EN(H6DO)-279
ENGINE (DIAGNOSTICS)
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
Step
Value
Yes
No
1
CHECK INPUT SIGNAL OF ECM.
1) Turn ignition switch to ON.
2) Measure voltage between ECM and chas-
sis ground.
Connector & terminal
(B137) No. 23 (+) — Chassis ground (
−−−−
):
Does the measured value exceed the spec-
ified value?
10 V
2
CHECK POOR CONTACT.
Check poor contact in ECM connector.
Is there poor contact in ECM connector?
There is poor contact.
Repair poor con-
tact in ECM con-
nector.
Replace ECM.
<Ref. to
FU(H6DO)-46,
Engine Control
Module.>
3
CHECK HARNESS BETWEEN INDUCTION
CONTROL SOLENOID VALVE AND ECM
CONNECTOR.
1) Turn ignition switch to OFF.
2) Disconnect connector from induction con-
trol solenoid valve.
3) Turn ignition switch to ON.
4) Measure voltage between ECM and chas-
sis ground.
Connector & terminal
(B137) No. 23 (+) — Chassis ground (
−−−−
):
Does the measured value exceed the spec-
ified value?
10 V
Repair battery
short circuit in har-
ness between
ECM and induc-
tion control sole-
noid valve
connector. After
repair, replace
ECM. <Ref. to
FU(H6DO)-46,
Engine Control
Module.>
4
CHECK INDUCTION CONTROL SOLENOID
VALVE.
1) Turn ignition switch to OFF.
2) Measure resistance between induction con-
trol solenoid valve terminals.
Terminals
No. 1 — No. 2:
Is the measured value less than the speci-
fied value?
1
Ω
Replace induction
control solenoid
valve <Ref. to
FU(H6DO)-38,
Induction Valve
Control Sole-
noid.> and ECM
<Ref. to
FU(H6DO)-46,
Engine Control
Module.>
5
CHECK POOR CONTACT.
Check poor contact in ECM connector.
Is there poor contact in ECM connector?
There is poor contact.
Repair poor con-
tact in ECM con-
nector.
Replace ECM.
<Ref. to
FU(H6DO)-46,
Engine Control
Module.>
EN(H6DO)-280
ENGINE (DIAGNOSTICS)
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
BT:DTC P0691 — COOLING FAN 1 CONTROL CIRCUIT LOW —
• DTC DETECTING CONDITION:
• Two consecutive driving cycles with fault
• TROUBLE SYMPTOM:
• Radiator fan does not operate properly.
• Overheating
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(H6DO)-54, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H6DO)-47, OPERATION, Inspec-
tion Mode.>.
EN(H6DO)-281
ENGINE (DIAGNOSTICS)
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
• WIRING DIAGRAM:
CO-00167
2
1
4
3
28
27
25
29
8
7
5
9
31
32
34
30
21
22
24
20
30A
30A
SUB FAN
RELAY-1
AIR CONDITIONING RELAY HOLDER
SUB FAN
MOTOR
MAIN FAN
MOTOR
MAIN FAN
RELAY-1
F28
F16
F66
SUB FAN
RELAY-2
MAIN FAN
RELAY-2
F29
F30
F27
F17
B100
F2
B72
NO. 18
NO. 17
SBF-4
SBF-1
IGNITION
SWITCH
RELAY HOLDER (BLACK)
B72
F16
B253
F17
F46
3 4
1 2
B137
BATTERY
17
24
28
B137
ENG
IN
E C
O
NTR
O
L
M
O
DULE
B253
FAN RELAY
5
1
3
4
3
3
4
4
1
1
2
2
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
3 4
1 2
1
3
4
5
2
1
F46
B108
1
F44
B61
LHD
LHD
RHD
RHD
1
*
2
*
1
*
2
*
LHD : 7
LHD : 6
RHD : 5
RHD : 6
1 2 3 4
5 6 7 8
F44
F2
3 4
1 2
8 9 10 11
12 13 14 15 16 17 18 19 20 21 22 23 24
5 6
7
1
2
5 6
8
9
7
3
4
25 26 27
28
29
30
31
32 33 34
10
11
12 13 14
15 16 17
18
19
20
21
22 23 24
35
36
F30
F28
F29
F66
F27
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст