Subaru Legacy III (2000-2003 year). Service manual — part 1051
WI-158
WIRING SYSTEM
ENGINE COOLANT TEMPERATURE GAUGE SYSTEM
14.Engine Coolant Temperature Gauge System
A: SCHEMATIC
1. NON-TURBO ENGINE MODEL
C/TEMP-01
C/TEMP-01
WI-01081
GW
FB-39
IGNITION RELAY
(IG)
TO POWER SUPPLY ROUTING
H4
H6
GW
B5
GW
A8
GW
C3
(GREEN)
C:
i12
1 2 3
4 5 6
7 8 9 10 11 12 13 14
C:
i12
2 3 4
5 6 7 8
11 12
10
13
14 15 16 17 18
1 2 3
8 9 10
4
11 12 13 14 15 16
5 6 7
H4
(GREEN)
B:
i11
1
9
(GREEN)
H6
(GREEN)
A:
i10
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
H
C
ENGINE
COOLANT
TEMPERATURE
GAUGE
COMBINATION METER
(4-CYLINDER ENGINE MODEL)
C:
i12
H
C
ENGINE
COOLANT
TEMPERATURE
GAUGE
COMBINATION METER
(6-CYLINDER ENGINE MODEL)
A:
B:
i10
i11
C:
i12
PW
C8
BL
C9
PW
C5
B15
LHD
RHD
BL
C6
B16
PW
A5
D4
PW
BL
PW
A5
BW
D4
PW
BL
i1
B36
SMJ
SHIELD AND SENSOR
GROUND JOINT
CONNECTOR
B83
20
BW
15
WG
B252
E49
WG
2
BL
GE
B21
E2
PW
16
PW
B21
E2
PW
10
WG
E8
3
PW
THERMOMETER
B22
E3
16
BR
GE
E8
3
WG
THERMOMETER
E8
1 2
3
B252
1 2 3 4
5 6 7 8
(LIGHT GRAY)
(DARK GRAY)
B22
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
(BROWN)
B21
(LIGHT GRAY)
B83
1 2
5
6 7
8
13
14 15
16
9 10
11 12
3 4
17 18
19 20
1 2 3 4
5 6 7 8 9 10
11
18 19
12 13 14 15 16 17
20
i1
B36
SMJ
H6
H6
H4
H4
:
:
4-CYLINDER ENGINE MODEL
6-CYLINDER ENGINE MODEL
: BL
: BW
: WITH OBD MODEL
WITHOUT OBD MODEL
1
*
1
*
1
*
WI-159
WIRING SYSTEM
ENGINE COOLANT TEMPERATURE GAUGE SYSTEM
2. TURBO ENGINE MODEL
C/T(TB)-01
C/T(TB)-01
WI-01082
E8
1 2
3
(LIGHT GRAY)
B22
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
i11
1 2 3
8 9 10
4
11 12 13 14 15 16
5 6 7
(BROWN)
B:
(GREEN)
B21
(BLACK)
1 2
5
6 7
8
13
14 15
16
9 10
11 12
3 4
17 18
19 20
(GREEN)
A:
i10
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
GW
FB-39
IGNITION RELAY
(IG)
TO POWER SUPPLY ROUTING
H
C
ENGINE
COOLANT
TEMPERATURE
GAUGE
GW
A8
GW
B5
COMBINATION METER
A :
i10
i11
B :
B15
B16
PW
BL
A5
D4
PW
BW
PW
BL
BW
15
SMJ
i1
B36
B22
E3
PW
15
B21
E2
WG
BL
WG
3
BL
GE
E8
THERMOMETER
WI-160
WIRING SYSTEM
ENGINE ELECTRICAL SYSTEM
15.Engine Electrical System
A: SCHEMATIC
1. LHD 4-CYLINDER ENGINE WITHOUT OBD MODEL
EG(LH4)-01
EG(LH4)-01
WI-00873
B97
R15
R58
B46
R1
BL
GR
FB-16
F/B FUSE NO. 11
(IG)
FB-9
F/B FUSE NO. 13
(B)
TO POWER SUPPLY ROUTING
BL
2
1
RB
3
BW
5
FUEL PUMP
RELAY
GR
Lg
3
RB
4
FUEL PUMP
FUEL PUMP ASSEMBLY
3
RB
RB
B
RB
2
1
B
REF. TO GROUND
DISTRIBUTION
[GND(L)-04]
ENGINE CONTROL MODULE
Lg
GR
A16
B7
E/G(LH4)-07
A
R57
B97
B46
3 4
1 2
(GREEN)
R57
1
2
3 4 5 6
1 2 3 4
5 6 7 8
R58
(GRAY)
1 2
3 4
5 6
(BLACK)
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 31 32 33
34 35
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
B135
B:
B134
A:
B135
B:
B134
A:
WI-161
WIRING SYSTEM
ENGINE ELECTRICAL SYSTEM
E/G(LH4)-02
E/G(LH4)-02
WI-00874
TO POWER SUPPLY ROUTING
FB-39
IGNITION RELAY
(IG)
GW
GW
IG-2
IGNITION RELAY
(IG)
ENGINE CONTROL MODULE
RW
A11
OrW
A30
GB
B24
B134
A:
B: B135
i28
B228
i11
COMBINATION
METER
OIL PRESSURE SWITCH
CUSTOM CPU
SPEEDO-
METER
TACHO-
METER
B:
i10
A:
i12
C:
B56
C:
GW
C3
GOr
C14
PW
C8
BL
C9
RW
C
5
OrW
B
7
GB
GW
GB
BL
A13
B
B
A20
GB
B16
B
I/F
OIL PRESSURE
W
ARNING LIGHT
TEMPERA
TURE
GA
UGE
MALFUNCTION
INDICA
T
O
R LIGHT
I/F
I/F
GOr
B5
PW
A5
D4
RW
A4
OrW
C
4
GB
E4
SMJ
B36
i1
E/G(LH4)-06
D
E/G(LH4)-04
C
E/G(LH4)-04
B
B21
E2
GOr
5
GW
PW
10
WG
E11
GW
B228
13 14 15
1 2
3
4 5 6 7 8 9
10 11 12
(GREEN)
C:
i12
1 2 3
4 5 6
7 8 9 10 11 12 13 14
(GREEN)
A:
i10
A: B134
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
(GREEN)
(GREEN)
B:
i11
1 2 3 4
5 6 7
8 9 10 11 12 13 14 15 16
2
1
GB
5
3
VEHICLE
SPEED SENSOR (MT)
OP
CONNECTOR
B17
B17
1 2 3
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
B135
B:
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 31 32 33
34 35
MT
AT
C17
TRANSMISSION
CONTROL
MODULE
1 2
7
8
9
5 6
3 4
10 11 12
19 20 21
13
14 15
16
17
18
22
23
24
C: B56
B21
1 2
5
6 7
8
13
14 15
16
9 10
11 12
3 4
17 18
19 20
BL
(LIGHT GRAY)
REF. TO GROUND DISTRIBUTION
[GND(L)-04]
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