Buell 2008 XB SERIES Electrical Diagnostics Manual page 53

em01163
[10A]
ECM
J2
[10A]
Active muffler control 1
(BK)
Fan control 2
Fan control 3
System ground #4 8
Switched ignition 9
System ground #3 16
Battery + 17
Tachometer output 22
Check engine lamp 23
24
System ground #2
Front coil 25
Fuel pump output 27
Fuel pump output 28
29
Front injector output
Rear injector output 30
31
Rear coil
Rear coil 32
System ground #1 33
Front coil 34
J1
[11A]
4
Throttle position sensor
(GY)
Active muffler feedback 9
11
Engine temperature input
13
Vehicle speed sensor
Air temperature input 14
Serial data receive
15
Serial data transmit 16
17
Bank angle sensor
18
Crank position sensor +
19
Sensor ground #3
Idle air control motor 2B 20
21
Idle air control motor 2A
22
Idle air control motor 1B
Idle air control motor 1A 23
5V sensor power 24
5V sensor power 25
Crank position sensor - 26
Sensor ground #1 27
Sensor ground #2 28
Oxygen sensor 32
[11A]
From ECM From IGN
fuse
[10B]
1 W
BK/O
2
3 BK/O
BK
8
GY
9
16 BK
17 Y
PK
22
BK/Y
23
24 BK
BE/Y
25
27 BN/Y
28 BN/Y
29 W/Y
GN/GY
30
31 BE/O
32 BE/O
33 BK
34 Y/BE
4 V/Y
9 TN/V
ET
1 1
11 PK/Y
Sensor
[90B] [90A]
13 W
14 LGN/Y
LGN/R
15
V/R
16
LGN/GY
17
18 GN/W GN/W 1 1
BK/BE
2 2
[79B] [79A]
19
BK/W
Idle Air Control Motor
BK/PK BK/PK 2 2
20
3 3
21 BE/GN BE/GN
4 4
22 BN/R BN/R
BK/O BK/O 1 1
23
[87B] [87A]
24 R/W
R/W
25
BK/BE
26
27
BK/W
28 BK/W
O2
32 V/GY 1 1
Sensor
[11B]
[137B] [137A]
Figure 2-1. Dynamic Digital Fuel Injection (DDFI) System
relay
[97B] [97A]
Y/BN
BK/O
Fuel Pump
[86A]
1 4 2 3
[86B]
1 4 2 3
[84B] [84A]
Front
GY 1 1
Injector
W/Y 2 2
Rear
GN/GY 2 2
Injector
GY 1 1
[85B] [85A]
Y/BE
GY
BE/O
From brake/horn/
muffler fuse
W 1 1
O 2 2
TN/V 3 3
[165A] [165B]
LGN/GY
5
CKP
Sensor
4
R/W
6
BK/W
[134B] [134A]
LGN/Y 1 1
BK/W
2 2
[89B] [89A]
2008 Buell XB Diagnostics: Engine Management 2-3
From cooling fan fuse
1 1
Cooling Fan
2 2
From fuel pump fuse
Instrument Module
PK Tachometer
14 14
[39B] [39A]
Check Engine
7 7
BK/Y
Lamp
[39B] [39A]
Low Fuel
15 15
Y/R
Lamp
[39B] [39A]
Ignition Coil
Front
3 3
2 2
1 1 Rear
[83B] [83A]
W W 3 3
O O 1 1
TN/V TN/V 4 4
BK 2 2
[161B] [161A]
1
GY
2
BK/W
LGN/R 3
V/R 4
5
[91A]
Bank
Angle
4
Sensor
6
W 2 2
VSS
R/W 1 1
BK/W 3 3
[65B] [65A]
2 2
V/Y
R/W 3 3
Throttle
Position
Sensor
IAT
Sensor
1 1
BK/W
[88B] [88A]
Interactive
Muffler
Control
Data Link
Connector