Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Subaru Impreza 2001-2002.2004-2007 Approved Subaru Impreza 2004 WRX STi 07. WIRING 17. Engine Electrical System
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ENGINE ELECTRICAL SYSTEM
WIRING SYSTEM
17.Engine Electrical System
A: SCHEMATIC
1. TURBO MODEL
CLUTCH SWITCH (MT)
BATTERY STARTER MOTOR
SBF-1 TO SECURITY INHIBITOR SWITCH (AT)
CONTROL MODULE P
IGNITION SWITCH R
1
SBF-4
OFF ACC ON ST N
B D
STARTER 2
INTER-
INTERRUPT
ACC
RELAY
3 LOCK 3
RELAY
IG 2
(MT) 4
F/B FUSE NO. 11
F/B FUSE NO. 13
F/B FUSE NO. 18
ST 1
MT
SBF-5
WS
WS
AT
AT
OS OS MT A16
AT A8
A5
E10
A6
FUEL E19
MAIN FRONT OXYGEN (A/F) SENSOR E29
PUMP
RELAY E18
RELAY E4
E5
D13
REAR OXYGEN SENSOR B17
B26
FUEL PUMP A13
CONTROL MODULE D15
E2
E3
WASTEGATE SOLENOID VALVE E24
C7
B27
ENGINE CONTROL MODULE
FUEL AIR FLOW SENSOR
C13
PUMP C8
FUEL INJECTOR NO. 1 E1
FUEL INJECTOR NO. 2 D6
FUEL INJECTOR NO. 3 D5
FUEL INJECTOR NO. 4 D4
PURGE CONTROL SOLENOID VALVE E16
IDLE AIR CONTROL SOLENOID VALVE D10
EXHAUST GAS TEMPERATURE SENSOR B16
INTERNAL PRESSURE SOLENOID VALVE E23
DRAIN VALVE E11
PRESSURE SOLENOID VALVE E22
FUEL TEMPERATURE SENSOR B6
B15
FUEL TANK PRESSURE SENSOR B19
SHIELD AND
SENSOR GROUND
JOINT CONNECTOR
A18
A19
TRANSMISSION CONTROL MODULE (AT) D14
B28
B20
WS : WITH SECURITY MODEL TO FRONT WIPER SWITCH B12
TO AIR CONDITIONING RELAY E27
TO EVAPORATION THERMO SWITCH A2
OS : WITHOUT SECURITY MODEL TO AIR CONDITIONING SWITCH A9
TO MAIN/SUB FAN RELAY 1 E17
TO MAIN/SUB FAN RELAY 2 E28
TO INTEGRATED MODULE A3
TO LIGHTING SWITCH A17
B24
POWER
STEERING 5
OIL
PRESSURE 6
SWITCH
7
WI-02576
WI-80
ENGINE ELECTRICAL SYSTEM
WIRING SYSTEM
CHECK DATA LINK LINE END CHECK
VEHICLE SPEED MT AT TRANSMISSION
CONNECTOR CONNECTOR CONNECTOR
SENSOR (MT) CONTROL MODULE (AT)
COMBINATION METER
1
I/F
2
MICROCOMPUTER
3 SPEEDO-
I/F
4 METER
A21
A10 I/F
A1
A20 TACHO-
D9 METER
E15
TEST MODE
CONNECTOR MALFUNCTION
A14 INDICATOR LIGHT
OIL PRESSURE SWITCH
THERMOMETER
ENGINE COOLANT
LINE END CONNECTOR DIAGNOSIS DIAGNOSIS
TEMPERATURE GAUGE
CONNECTOR TERMINAL
FUEL SUB FUEL
LEVEL SENSOR LEVEL SENSOR OIL PRESSURE
NEUTRAL POSITION
WARNING LIGHT
B25 SWITCH (MT)
A8
D24 IGNITION COIL NO. 1
D23 IGNITION COIL NO. 2
D22 IGNITION COIL NO. 3
ENGINE CONTROL MODULE
D21 IGNITION COIL NO. 4
C10
C11 TUMBLE GENERATOR VALVE LH
C4
C5 TUMBLE GENERATOR VALVE RH
B9
B7 THROTTLE
B8 POSITION
A7 PRESSURE SENSOR SENSOR
A15
C1
B13 TUMBLE GENERATOR VALVE
ENGINE COOLANT ANGLE SENSOR LH
B18
TEMPERATURE SENSOR
B23 TUMBLE GENERATOR VALVE
ANGLE SENSOR RH
B2 CRANKSHAFT POSITION
B11 SENSOR
B1 CAMSHAFT POSITION
B10 SENSOR
B21
B4 KNOCK SENSOR
B22
D2
D18 PCV DIAGNOSIS CONNECTOR
A22
D17
D8
E8
E9
5
6
7 ENGINE GROUND ENGINE GROUND
WI-02577
WI-81
ENGINE ELECTRICAL SYSTEM
WIRING SYSTEM
FUEL PUMP RELAY
E/G(TB)-01
E/G(TB)-01
TO POWER SUPPLY ROUTING
2 LR
FB-20
1 GR F/B FUSE NO.11
3 B (IG)
GR
4 BY
FUEL PUMP B46 A E/G(TB)-03
R1 B97
CONTROLLER
10 BY BY 7 BY B E/G(TB)-10
5 B
9 LgR
8 VW
B
B
6 BW
7 BOr
FUEL PUMP ASSEMBLY R122
FUEL PUMP
1 BY BY 8 BOr REF. TO GND-04 REF. TO GND-03
4 B B 16 BW LgR 20 LgR
FUEL 5 RW VW 19 VW
TEMPERATURE
6 LB BR 3 BR C E/G(TB)-02
SENSOR
FUEL LEVEL BrW 11 BrW
SENSOR
2 BW BW 11 BR R3 B99
3 L BrW 7 BrW
R58 LgB 2 LgB LgB 1 LgB
RW 3 LW LW 2 LW D E/G(TB)-06
LB 5 LB LB 4 LB
FUEL SUB
LEVEL SENSOR BrY 6 BrY BrY 5 BrY
2 L
RL 4 RL RL 8 RL
1 BrW
YG 10 YL YL 6 YL E E/G(TB)-03
R59
R 12 Sb Sb 9 Sb F E/G(TB)-09
GOr 13 GOr GOr 10 GOr
RY 14 GY GY 11 GY G E/G(TB)-06
R57 R15 R2 B98
LgB
GOr
BrY
YG
YG
YG
RY
RL
R
B25 BrW
B15 GOr
E22 LgB
A13 LgR
E11 BrY
D15 VW
A5 GR
E23 RL
LB
R68 R69 R144 R47
1
1
1
1
2
2
2
2
3
B6
A: B134 B: B135 ENGINE
CONTROL
PRESSURE DRAIN VALVE INTERNAL FUEL TANK D: B137 E: B84 MODULE
SOLENOID PRESSURE PRESSURE
VALVE SOLENOID VALVE SENSOR
R59 R47 B46 (GREEN) R58 B97 R122 B98 R57
R68 1 2 3 1 2 1 2 3 1 2 3 4 1 2 3 4 1 2 3 4 5 1 2 3 4 5 6 7
3 4 4 5 6 5 6 7 8 5 6 7 8 9 10 6 7 8 9 10 11 12 8 9 10 11 12 13 14 15 16
R69
R144
1 2
A: B134 B99 D: B137 B: B135 E: B84
1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
8 9 10 11 12 13 14 15 12 13 14 15 16 17 18 19 20 21 22 23 24 8 9 10 11 12 13 14 15 16 10 11 12 13 14 15 16 17 18 19 10 11 12 13 14 15 16 17 18 19 20 21
16 17 18 19 20 21 22 17 18 19 20 21 22 23 24 20 21 22 23 24 25 26 27 28 22 23 24 25 26 27 28 29 30 31
WI-02472
WI-82
ENGINE ELECTRICAL SYSTEM
WIRING SYSTEM
E/G(TB)-02
E/G(TB)-02
TO POWER SUPPLY ROUTING
FB-34 FB-16
F/B FUSE NO.13 F/B FUSE NO.18
(IG) (IG)
RW
GB
B37
AT : AT MODEL
14
i2
MT : MT MODEL
C7 RW
SPEED- TACHO-
METER METER H E/G(TB)-05
INDICATOR LIGHT
WARNING LIGHT
COMBINATION
I/F
OIL PRESSURE
MALFUNCTION
METER
TEMPERATURE
A: i12
MICROCOMPUTER C: B56
GAUGE
B: i10
TRANSMISSION
C: i11
CONTROL
I/F
I/F
MODULE (AT)
GY C17
GB B2
RW A6
C5
GB C2
BW A8
WG A9
LG
VEHICLE
12 WG
BW
14 RW
GB
GB
LG
SPEED SENSOR (MT)
AT
i1 i2 GB 3
18
24
11
6
MT GY 1
B36 B37 BR 2
GW
WG
BW
RW
GY
G
B17
E/G(TB)-01 C I E/G(TB)-05
J E/G(TB)-10
K E/G(TB)-09
L E/G(TB)-08
E15 RW
GY
G
D9
A1
A: B134 D: B137 E: B84 ENGINE CONTROL MODULE
B17 C: i11 (GREEN) A: i12 (GREEN) A: B134 C: B56 (GREEN) D: B137
1 2 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7
3 4 7 8 9 10 11 12 13 14 8 9 10 11 12 13 14 15 10 11 12 13 14 15 16 17 18 8 9 10 11 12 13 14 15 16
16 17 18 19 20 21 22 19 20 21 22 23 24 17 18 19 20 21 22 23 24
i2 i1 (BROWN) B: i10 (GREEN) E: B84
1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9
12 13 14 15 16 17 18 19 20 21 22 23 24 12 13 14 15 16 17 18 19 20 21 22 23 24 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 27 28 29 30 31
WI-02473
WI-83
ENGINE ELECTRICAL SYSTEM
WIRING SYSTEM
SHORT CONNECTOR
E/G(TB)-03
E/G(TB)-03
TO POWER SUPPLY ROUTING (WITHOUT SECURITY SYSTEM)
MB-9 ST WB 2 BY
SBF-5 IGNITION SWITCH WR 6 BY
(B) (ST) INTERRUPT RELAY
B59 (WITH SECURITY
WB
BR
SYSTEM)
OS
AT : AT MODEL
WS WB 2
OS
MT : MT MODEL WR 6
BR
BR
F44 WS WB 1
WS : WITH SECURITY SYSTEM
8
2
REF. TO SEC-01 RB 4
B61
BR
OS : WITHOUT SECURITY SYSTEM
LR
B59 INHIBITOR SWITCH (AT)
P R N D 3 2 1
E/G(TB)-01 A AT WR 12 BY 12
E
MT
E/G(TB)-01 Y 11 BW 7
MAIN RELAY
B12 T3 T7
6 BR M E/G(TB)-05
4 YR
N E/G(TB)-06
5 LR
3 YL O E/G(TB)-06
2 LgW AT STARTER INTERLOCK
RELAY (MT)
1 B
MT
B47 WR 27
Y 28
WR 24
GY 26
B225
B
B
CLUTCH SWITCH (MT)
GY 2
B 1
B106
REF. TO GND-03 REF. TO GND-01
STARTER MOTOR
TO BATTERY TERMINAL
AT
A6 LgW
A8 WB
E10 BR
YL
YL
Y
A16
Y
E2
E3
B14
A: B134 E: B84 ENGINE CONTROL MODULE
B106 B47 (BROWN) B59 F44 B12 T7 A: B134 E: B84
1 1 2 1 2 3 4 1 2 3 4 1 2 3 4 5 6
1 2 3 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9
2 3 4 5 6 7 8 5 6 7 8 7 8 9 10 11 12
4 5 6 8 9 10 11 12 13 14 15 10 11 12 13 14 15 16 17 18 19 20 21
5 6 9 10 11 12 16 17 18 19 20 21 22 22 23 24 25 26 27 28 29 30 31
B225 (BLACK)
1 2
3 4 9 14 15 16 19 24 25 26 29 34 35 36
10 17 20 27 30 37
5 6
11 12 13 18 21 22 23 28 31 32 33 38
7 8
RELAY BLOCK WI-02474
WI-84
ENGINE ELECTRICAL SYSTEM
WIRING SYSTEM
E/G(TB)-04
E/G(TB)-04
REF. TO R/F(TB)-01
REF. TO AT(TB)-04
REF. TO A/C(M)-01
REF. TO ILM(ES)-01
REF. TO R/DEF-01
B20 BrR
B28 GW
A17 BW
A9 GR
E28 GR
A18 PG
D14 YR
A19 RY
E17 RL
LY
E27 Br
L
A2
A3
A: B134 B: B135 D: B137 E: B84 ENGINE CONTROL MODULE
A: B134 D: B137 B: B135 E: B84
1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9
8 9 10 11 12 13 14 15 8 9 10 11 12 13 14 15 16 10 11 12 13 14 15 16 17 18 19 10 11 12 13 14 15 16 17 18 19 20 21
16 17 18 19 20 21 22 17 18 19 20 21 22 23 24 20 21 22 23 24 25 26 27 28 22 23 24 25 26 27 28 29 30 31
WI-02475
WI-85
ENGINE ELECTRICAL SYSTEM
WIRING SYSTEM
E/G(TB)-05
E/G(TB)-05
A: B134 ENGINE CONTROL MODULE
Or A14
RW A10
YG A20
LgB A21
GB A8
MT
DIAGNOSIS
CONNECTOR
5 Or
B82
NEUTRAL POSITION
SWITCH (MT)
DIAGNOSIS
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