Engine Management Circuit - Buell 2003XB9S Service Manual

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bs0009xx
PIN
1 R/W
5V SENSOR POWER
V/Y
THROTTLE POSITION SENSOR 2
3 GN/W
CAMSHAFT POSITION SENSOR
V/GY
OXYGEN SENSOR 4
5 Y
KEEP ALIVE
6 BK/O
FAN CONTROL
BK/W
SENSOR GROUND 7
8 W
VEHICLE SPEED SENSOR (VSS)
PK/Y
ENGINE TEMPERATURE INPUT 9
10 LT.GN/Y
AIR TEMPERATURE INPUT
LT.GN/R
11
SERIAL DATA RECEIVE
V/R
SERIAL DATA TRANSMIT 12
PIN
1 GY
SWITCHED IGNITION
SYSTEM GROUND A 2 BK
3 BN/Y
FUEL PUMP OUTPUT
CHECK ENGINE LAMP 4 BK/Y
5
INJECTOR FRONT OUTPUT W/Y
FRONT COIL PRIMARY 6 Y/BE
7
REAR COIL PRIMARY BE/O
INJECTOR REAR OUTPUT 8 GN/GY
9
UNUSED
10
BANK ANGLE SENSOR INPUT LT.GN/GY
11 BK
SYSTEM GROUND B
12
TACHOMETER OUTPUT PK
IGNITION START
ISO ISO
KEY SWITCH
ISO
W/BK
1
1
1
9 2 TN/LTGN
3
5
4 GY
3 GY/O
5
4 5
6
10 7
8
2
9
6
9 TN/W
8 10
11
7
R/BK
11
12
11 13
14
19
15
15
16
13 17
18
14
19 BK
20
21
22
23
24 Y/BN
25
26
27
28
29
30 R
31
32
33
TN/LT.GN
34
34
R
35
36
37
38 R
39
TN/Y
40
40 TN/Y
41 R/Y
42
43
44 R
44 R
TO BANK ANGLE SENSOR
TOP VIEW
PIN
1 1
1 2 2 2
3 3
BAS
3 4 5 6 7 8
5 5
9 10 4 4
6 6 BK/W
[134A] [134B]
11 12
13 14 15 16 17 18
19 20
22 25 26
21 23 24
27 28 29 30
31 32
33 34 35 36 38
37
43 44
39 40 41 42
SPEEDOMETER
TO RH CONTROLS
KEY POSITION
PARK
IGN
LOCK
OFF
ON
1 2
WIRE COLOR
1 2
WIRE SECTION mm
CONNECTING
TO IGNITION SWITCH
PIN PIN
PIN
R
A 1
1 1
B 2
2 2 R/BK
C 3
3 3
W/BK
D 4
4 4 R
GY/O [33A] [33B]
[22B] [22A]
TO
BRAKE
SWITCH
Y/BE
DYNO LOOP
LT.GN/GY
R/W
TO SPEEDOMETER
PIN
UNUSED 1
R
BATTERY 2
TN/Y
NEUTRAL 3
LEFT TURN 4
RIGHT TURN 5
TO CLUTCH
HIGH BEAM
6 SWITCH
BK/Y
CHECK ENGINE 7
OIL PRESSURE 8
UNUSED 9 [95B]
10
UNUSED
UNUSED 11
IGNITION 12
PIN 1 2
GROUND 13 BK
1 2
14
LFW
TACH IN 15
VSS IN 16 W
[95A]
UNUSED 17
18
UNUSED
UNUSED 19
UNUSED 20
[39A] [39B]
WIRING DIAGRAM
A C D B
O O
O O O O
TO FRONT INJECTOR
R R/BK R R/GY
2
1 1 1 1
+ +
[84A]
BATTERY BATTERY
USER + USER +
R A B
PIN A B
GY
W/Y
[84B]
2003 XB9S Engine Management Circuit
BK
BK
COOLING FAN
TO COOLING FAN
[GRD1]
PIN
Y/BN 1 1 Y/BN
BK/O 2 2
[GRD3] BK
[97B] [97A]
TO REAR INJECTOR
A B
A
PIN
GY
GN/GY
TO DATA LINK
PIN
1 LT.GN/R
BK
2
V/R
3
4 GY
[91A]
BATTERY CABLE
BATTERY
BK
[GRD2]
TO FUEL PUMP
MTR
PIN
Y/R Y/R
A A
BK BK
B B
BN/Y
BN/Y
C C
GY GY LOW
D D FUEL
[86A]
[86B] SENSOR
PIN TO NEUTRAL SWITCH
TN/Y
1 1 TN/Y
[131B] [131A]
PIN TO VEHICLE SPEED SENSOR
R A R
A
W W
B B
BK/W BK
C C
[65A]
[65B]
TO CAM POSITION SENSOR
PIN
R/W R/W
A A
GN/W GN/W
B B
BK/W BK/W
C C
[14B] [14A]
TO IAT
PIN
LT.GN/Y
LT.GN/Y 1 1
BK/W
2 2 BK/W
1 2
[89A]
[89B]
TO SIDESTAND SWITCH
PIN
BK
2 2
SWITCH
TN/W
1 1
[133A] [133B]
TO THROTTLE POSITION SENSOR
PIN
V/Y B B
[88A] [88B]
R/W
C C
BK/W A
A
TO IGNITION COILS
PIN
Y/BE
C C
GY
B B COIL
BE/O
A A
[83A]
[83B]
TO OXYGEN SENSOR
SPARK PLUGS
PIN
V/GY
1 1
[137B] [137A]
TO HEAD TEMP SENSOR
PIN
PK/Y
1 1
[90B] [90B]
[85A]
B
[85B]
2003 Buell XB9S: Electrical B-18