Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 800
WI-29
Ground Circuit
WIRING SYSTEM
i15
i6
D5
D15
D102
AD2
D84
D125
D83
i23
D5
D15
1
2
3
5
6
7
8
B:
i39
i24
4
1 2 3
6
5
1
3
4 5 6
2
WI-37566
1 2 3 4 5 6 7 8 9 10
4
2 3 4 5
1
6 7 8
1 2
4 5 6 7 8
3
1 2 3
1
2
3
4 5 6 7 8
1 2
3 4
D3
GND-07
GND-07
*
1
*
1
i99
i99
*
1
i100
*
1
4 3
6
9 8 7
2
10
1
5
1 2
5 6 7 8
2
1
9
4
3
10
24
22 23
25
11 12 13 14 15
16 17
18 19
20 21
5 6 7 8
2
1
9
4
3
10
24
22
23
25
27
26
28
11 12 13
14 15 16
17 18 19 20 21
GND-06
*
1
i99
i100
1 2 3 4 5
D17
1 2
4 5 6 7 8
3
1 2
*
1
1
D5
4
D17
5
D5
10
5
D15
4
D102
B:
B3
D3
5
5
2
D125
1
i15
i6
7
i39
5
i23
1
AD2
*
1
D
8
4
i101
3
D
8
3
i76
3
AD1
i24
2
D15
10
*
1
B
B
B
BB
BB
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
SI
B
B
WH
SI
OH
E
WH
WH
WH
OH
WH
OH
B
B
B
B
B
BY
GB-12
OH
OH
:
:
:
:
(DARK GRAY)
(BLACK)
(BLACK)
BLO
WER F
AN SWITCH
(MANU
AL A/C)
: WITH SI-DRIVE
: TERMINAL No. OPTIONAL ARRANGEMENT
: WITH MIRROR HEATER
: WITHOUT MIRROR HEATER
FR
ONT
A
CCESSOR
Y PO
WER
SUPPL
Y SOCKET
GLO
VE BO
X ILLUMI.
LIGHT
HEADLIGHT BEAM LEVELER SWITCH
REMO
TE CONTR
OL
MIRR
OR SWITCH
PASSENGER'S DOOR
LOCK SWITCH
PO
WER
WINDO
W
MAIN SWITCH
OUTER MIRR
OR ASSY RH
OUTER MIRR
OR
ASSY RH
FR
ONT PO
WER
WINDO
W MO
TOR LH
OUTER MIRR
OR
ASSY LH
FR
ONT PO
WER
WINDO
W
SUB-SWITCH
OUTER MIRR
OR ASSY LH
JOINT
GROUND
CONNECTOR
WI-30
Ground Circuit
WIRING SYSTEM
2. ENGINE GROUND
•
Without SI-DRIVE
ECM
B137
B21
B134
E41
E40
1
3
4 5 6
2
E41
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
42 43
36 37 38 39
48 49 50 51 52 53 54
40 41
44 45
46 47
1 2
3 4
E14
B21
E2
A4
40
A3
WI-33871
E10
E22
E57
8
5
6
10 11 12 13 14 15
7
2
1
3
4
16
30
19 20
22
28 29
9
17
18
25
21
23 24
32
31
26 27
33 34
E14
4
1
E10
E40
E88
2
2
2
2
D:
E22
1 2
B137
D3
A6
36
D1
34
35
E33
E31
E34
E32
1
2
3
GND-0
8
GND-0
8
1
2
1
3
4
6
A:
1
2
8
5
6
10 11 12 13 14 15
7
2
1
3
4
16
30
19 20
22
28 29
9
17
18
25
21
23
24
31
26 27
E33
E88
D:
B134
A:
1 2
E31
E32
E34
BR
B
B
B
B
B
LW
BW
BW
BR
BR
GE
L
G
L
L
G
WR
W
B
BR
B
BW
BW
B
BL
BL
BY
LW
LW
LW
LW
BR
BR
BR
BW
BY
BY
LEAK DIAGNOSIS
CONNECTOR 3
IGNITION
COIL No. 4
IGNITION
COIL No. 2
IGNITION
COIL No. 3
IGNITION
COIL No. 1
(DARK GRAY)
(BLACK)
(LIGHT GRAY)
KNOCK
SENSOR
ELECTRONIC
THROTTLE
CONTROL
FRONT OXYGEN
(A/F) SENSOR
CRANKSHAFT
POSITION
SENSOR
(GRAY)
(GRAY)
(GRAY)
(GRAY)
(LIGHT GRAY)
(DARK GRAY)
(BLACK)
(BLACK)
SECONDARY
AIR
COMBINATION
VALVE LH
SECONDARY
AIR
COMBINATION
VALVE RH
REF
. T
O ENGINE ELECTRICAL SYSTEM
[E/G-06]
REF
. T
O ENGINE ELECTRICAL SYSTEM
[E/G-07]
REF
. T
O ENGINE ELECTRICAL SYSTEM
[E/G-0
8]
E57
1 2 3 4 5 6
(BLACK)
WI-31
Ground Circuit
WIRING SYSTEM
•
With SI-DRIVE
B137
B134
E40
E41
B21
E14
WI-37567
E10
E57
8
5
6
10 11 12 13 14 15
7
2
1
3
4
16
30
19 20
22
28 29
9
17
18
25
21
23 24
32
31
26 27
33 34
E14
4
1
E10
E41
E87
1
3
4 5 6
2
E40
D:
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
42 43
36 37 38 39
48 49 50 51 52 53 54
40 41
44 45
46 47
1 2
2
2
2
B21
E2
A4
40
A3
E33
E31
E34
E32
1
2
3
GND-09
GND-09
1
2
4
6
A:
1
1 2
E57
1 2 3 4 5 6
8
5
6
10 11 12 13 14 15
7
2
1
3
4
16
30
19 20
22
28 29
9
17
18
25
21
23
24
31
26 27
2
E32
2
E87
B137
D3
A6
36
D1
34
35
E31
E33
E34
D:
B134
A:
BY
BR
BY
BW
BW
BY
BL
BL
BY
BW
BR
BR
B
BW
BW
W
W
BY
BY
YG
BY
BW
BW
GE
W
WR
W
G
L
BR
BW
BY
BY
B
B
BW
W
W
ECM
LEAK
DIAGNOSIS
CONNECTOR 2
IGNITION
COIL
No. 4
IGNITION
COIL
No. 3
IGNITION
COIL
No. 2
IGNITION
COIL
No. 1
(BLACK)
(BLACK)
(BLACK)
(DARK GRAY)
(BLACK)
(LIGHT GRAY)
KNOCK
SENSOR
ELECTRONIC
THROTTLE
CONTROL
CRANKSHAFT
POSITION
SENSOR
(GRAY)
(GRAY)
(GRAY)
(GRAY)
SECONDARY
AIR COMBINATION
VALVE RH
SECONDARY
AIR COMBINATION
VALVE LH
REF
. T
O ENGINE ELECTRICAL SYSTEM
[E/G(S)-07]
(LIGHT GRAY)
REF
. T
O ENGINE ELECTRICAL SYSTEM
[E/G(S)-0
8]
WI-32
Engine Electrical System
WIRING SYSTEM
5. Engine Electrical System
A: WIRING DIAGRAM
1. WITHOUT SI-DRIVE
ECM
WI-33790
6
7
8
11
9
10
1
2
3
4
5
C16
B26
B20
B8
C30
C2
B27
B10
D28
B7
B17
B13
C1
A33
D6
D7
A13
D16
C10
C22
C31
C11
C5
C6
C18
C19
B6
C20
C33
D30
B3
B4
C21
B22
A10
A11
A12
B12
C29
C7
B35
C17
C28
D24
B25
B24
B11
B9
C9
D15
12
D27
ELCM
ST
ON
ACC
OFF
SBF-6
SBF-8
SBF-5
SBF-7
M
M
FUEL PUMP ASSY
(FUEL PUMP)
A/F
, O
XYGEN
SENSOR RELA
Y
PURGE CONTROL SOLENOID VALVE 2
SECONDARY
AIR
COMBINATION VALVE RELAY 1
SECONDARY AIR COMBINATION VALVE RELAY 2
SECONDARY
AIR FUSE
SECONDARY
AIR PUMP
SECONDARY AIR PUMP RELAY
PRESSURE CONTROL SOLENOID VALVE
CAMSHAFT POSITION SENSOR RH
FUEL INJECTOR No. 4
FUEL INJECTOR No. 3
FUEL INJECTOR No. 2
F/B FUSE No. 21
F/B FUSE No. 12
F/B FUSE
No. 5
F/B FUSE No. 4
F/B FUSE No. 7
M/B FUSE No. 13
CLUTCH SWITCH
MAIN FAN RELAY 1
BODY INTEGRATED UNIT (IMMOBILIZER)
CAN COMMUNICATION
A/C RELAY
PRESSURE SWITCH
A/C CONTROL PANEL
JOINT CONNECTOR
SUB FAN RELAY
FUEL INJECTOR No. 1
WASTEGATE CONTROL SOLENOID VALVE
PURGE CONTROL SOLENOID VALVE 1
POWER STEERING
OIL PRESSURE SWITCH
CAMSHAFT POSITION SENSOR LH
FRONT OXYGEN (A/F) SENSOR
REAR OXYGEN SENSOR
MASS AIR FLOW &
INTAKE AIR TEMPERATURE SENSOR
FUEL PUMP CU
FUSE
(RELAY BLOCK)
FUEL PUMP RELAY
ELECTRONIC
THROTTLE
CONTROL
RELAY
MAIN RELAY
STARTER
MOTOR
IGNITION
SWITCH
CLUTCH
START
SWITCH
STARTER
RELAY
IG 2 RELAY
M/B FUSE No. 11
BATTERY
MAIN
SBF
MULTI
JOINT
CONNEC-
TOR
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