
Speedometer
IGN Coil
IAT
Clutch SW
LH Controls
L Turn
Signal
R Turn Signal
RH
Controls
L Turn
Signal
Fuel Pump
R Turn
Signal
Tail
Light
Flasher
Oxygen
Sensor
Eng Temp
Sensor
Throttle
Position
Sensor
Front
Injector
Rear
Injector
Data Link
Bank Angle
Sensor
GRD 3 GRD 1
License
Plate
Lamp
Cooling
Fan
Starter
Solenoid
Vehicle
Speed
Sensor
Neutral
SW
Voltage
Regulator
Exhaust
Valve
Actuator
Sub-harness
(Japan Only)
Fuse/Relay
Assembly
Foot Brake
Switch
Battery
Sidestand
Sensor
(HDI only)
Front
12V Auxiliary
Power Outlet
GRD 4
(Japan only)
Active Intake
Solenoid
Oil
Pressure
Switch
Rear
12V Auxiliary
Power Outlet
(Ulysses only)
Headlight
F
ront
Br
ak
e
SW
GRD 2
GRD 5
Idle Air
Control
Crank
Position
Sensor
Horn
LH CONTROLS WIRING DIAGRAM
1
2
3
HI BEAM/PASS
L TRN SIG
R TRN SIG
HORN
WIRE COLOR
4
5
V/BN
V
6
7
BN
8
PINS
BE
W
WIRE COLOR
Y/BN
O
WIRE COLOR
PINS
PINS
IGNITION SW WIRING DIAGRAM
R
R/GY
R/BK R
1
2
3
4
KEY POSITION
PARK
LOCK
OFF
ON
WIRE COLOR
LOW BEAM
Y
1 2 3 4
1
2
[38B]
LEGEND
MALE
*VIRTUAL SPLICE ORIGINATES
FROM PHYSICAL SPLICE
*VIRTUAL
SPLICE
PHYSICAL
SPLICE
FEMALE
Auxiliary
2
1
3
5
BK/GN
O/R
GY
R
2012 16 17
Key SW
2
1
3
5
BK
R/BK
R/BK
R
1119 15 14
Start
2
1
3
5
GN/O
GN
BK/R
BE
10 2 6
7
Ignition
2
1
3
5
BK
GY
W/BK
GY/O
1 9 5
4
BE
8
O/R
LGN/GY
BK
PK
TN/V
GN/GY
BE/O
Y/BE
W/Y
BK/Y
BN/Y
GY
W
V/R
LGN/R
LGN/Y
PK/Y
W
BK/O
Y
V/Y
Batter
y
Br
ak
e/Hor
n/EV
A
Cooling
F
an
Ignition
Accessor
y
Spare
Spare
ECM
Lights
K
e
y
Switch
R
Y/BN
R
O/W
R/Y
BK
Y
BE
R
O
R
GY/O
R/GY
BK
R
R/BK
BK
O
R
GY
V/R
1 2
BK/W
LGN/R
3 4
R
TN/Y
2
3
V
BN
4
5
W
BK/Y
6
7
GN/Y
R/BK
8
12
BK
PK
13
14
Y/R
W
15
16
BK/R
GY
1
2
W/BK
R/BK
3
4
Y
BE
2
3
W
Y/BK
4
5
V/BN
V
6
7
BN
O
8
1
BK
V
BN
BK
1
1
BK
BK
1 2
BK/W
W
1 2
R/W
3
TN/Y
1
R/Y
O
BK/O
Y/BN
1 2
O/GY
BN/Y
Y/R
BK/W V/Y
R/W
BN
BK
BK
O/W
R/W
LGN/GY
4
5
BK/W
6
BK
W/Y
GY
GN/GY
GY
BK/W
LGN/Y
1 2
Y/BE
GY
BE/O
O
W
1 2
TN/V
3
GN/Y
1
PK/Y
V/GY
1
V/BN
1 2
BK
4
BK
1
1
BK
1
1
1
2
1 2
1
1
2
3
1 2 3
1 2
1 2
1
1
BK
[165A]
[120A]
[77B]
[65A]
[65B]
[131B]
[131A]
[128A]
[128B]
[97A]
[97B]
[86A]
[86B]
[178]
[18B]
[93B]
[45B]
[19B]
[134B]
[62B]
[85B]
[84B]
[88B]
[88A]
[89B]
[83B]
[83A]
[90B]
[90A]
[137B]
[137A]
[30B]
[87B]
[95B]
[24A]
[31B]
[39A] [39B]
[31B]
[22A]
[121A]
[121B]
15A
15A
10A
15A
10A
10A
15A
10A
10A
30A
BK
TN/LGN
11
9
13
14
22
21
17
16
10
9
8
3
2
1
23
24
15
16
17
34
33
32
31
30
29
28
27
25
Fan control
Vehicle speed sensor
Air temp input
Serial data receive
Serial data transmit
Active muffler control
Switched ignition
System ground #4
Fuel pump output
Check engine lamp
Front injector output
Front coil primary
Rear coil
Rear injector output
Active muffler feedback
Bank angle sensor
Tachometer output
Fan control
Active intake
System ground #3
B
Vehicle speed
System ground #2
Fuel pump output
Rear coil
System ground #1
Front coil secondary
Engine temp input
BK/O
BK
BE/O
Y/BE
BN/Y
BK
W
GY/O
R/Y
BK
R/Y
R
R/Y
10A
BK
A
uxiliar
y
TN/W
1 2
BK
O/R
1 2
Throttle position sensor
8
TN/Y
GN/O
3
Neutral switch
Starter relay
5v sensor power
Oxygen sensor
Sensor GND #2
Sensor GND #1
Sidestand sensor
V/GY
R/W
TN/W
BK/W
R/W
R
R
33
39
10A
Fuel
Pump
O/GY
R/BK
R/BK
BK/W
BK
[133B]
[160A]
7
GY
GY/O
1 2
BK/W
O/W
1
1
1
R/Y
41
30
27
28
31
32
42
43
44
35
23
24
21
22
25
26
36
37
38
40
34
1 2 3 4
4
[91A]
BATT
NEUT
TRNL
TRNR
HIB
ENG
OIL
IGN
GRD
TACH
FUEL
SPD
O
1
2
BK
Y/BK
BK
Y
W
O/W
R/Y
[122A] [122B]
[170B]
BK
TN/LGN
Clutch switch
2
BK/W
19
BK/BE
26
Crank sensor neg
GN/W
18
Crank position sensor
24
27
28
32
34
O/W
Sensor GND # 3
Idle air
control motor
20
21
22
23
BK/PK
BE/GN
BN/R
BK/O
1
4
3
2
BK/O
BK/PK
BE/GN
BN/R
BK/W
[180B]
GN/W
1
BK/BE
2
[79A]
[79B]
5v sensor power
R/W
25
BK
BK/GN
19
11
9
13
14
22
21
17
16
10
9
8
3
2
1
23
24
15
16
17
34
33
32
31
30
29
28
27
25
8
7
4
2
19
26
18
24
27
28
32
34
20
21
22
23
25
19
Aux relay GND
BK
V
1
1
BK
O/R
2
1
GN
1
29
J1
[11A]
(GY)
ECM
[11A]
[11B]
[10A]
[10B]
J2
[10A]
(BK)
Ignition
Switch
1
2
2
3
4
1
3
4
R
R
R/BK
R
R
R/BK
R/GY
R/GY
[33B]
[33A]
LOCK
IGN
et00001
Figure B-2. Main Harness, Ulysses and Lightning
Summary of Contents for 2008 XB SERIES
Page 1: ...2008 Buell XB Models Electrical Diagnostics Manual 99493 08Y 2007 Buell Motorcycle Company ...
Page 4: ...Blank Text Here ...
Page 6: ...NOTES ...
Page 14: ...NOTES ...
Page 50: ...NOTES ...
Page 72: ...ed01568 Figure 2 16 Checking for Leaks 2 22 2008 Buell XB Diagnostics Engine Management ...
Page 202: ...NOTES ...
Page 224: ...A 22 2008 Buell XB Diagnostics Appendix A Connector Repair NOTES ...
Page 225: ...SUBJECT PAGE NO B 1 CONNECTORS B 1 B 2 WIRING DIAGRAMS B 3 APPENDIX B WIRING DIAGRAMS ...
Page 226: ...NOTES ...
Page 232: ...Figure B 2 Figure B 2 Main Harness Ulysses and Lightning Main Harness Ulysses and Lightning ...
Page 234: ...Figure B 3 Figure B 3 Main Harness Firebolt Main Harness Firebolt ...
Page 240: ...Figure B 6 Figure B 6 Lighting Circuit Firebolt Lighting Circuit Firebolt ...
Page 242: ...Figure B 7 Figure B 7 Component Circuits All Models Component Circuits All Models ...
Page 248: ...Figure B 10 Figure B 10 Starting Circuit Firebolt Starting Circuit Firebolt ...
Page 250: ...Figure B 11 Figure B 11 Charging Circuits All Models Charging Circuits All Models ...
Page 266: ...B 40 2008 Buell XB Diagnostics Appendix B Wiring Diagrams NOTES ...
Page 268: ...NOTES ...
Page 272: ...C 4 2008 Buell XB Diagnostics Appendix C Conversions NOTES ...
Page 273: ...SUBJECT PAGE NO D 1 GLOSSARY D 1 APPENDIX D GLOSSARY ...
Page 274: ...NOTES ...
Page 278: ...D 4 2008 Buell XB Diagnostics Appendix D Glossary NOTES ...
Page 282: ...IV TOOLS NOTES ...
Page 284: ...VI TORQUE VALUES NOTES ...
Page 287: ...INSIDE BACK COVER GOES HERE ...
Page 288: ...OUTSIDE BACK COVER GOES HERE ...