Buell XB9R 2003, Service Manual, Page: 365 / 566

4-68 2003 Buell XB9R: Fuel System
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Code 24/25 Test
NO
Measure voltage on Terminal B of coil.
Should be equivalent to battery
voltage after key is turned ON.
Is it?
YES
Faulty coil
connection or coil. See
4.31 IGNITION COIL .
Disconnect coil connector [83]. Attach Test
Lamp to [83] as shown in Figure 4-161.
Crank engine.
Do test lamp lights flash when cranked?
NO YES
Measure voltage at ignition relay
Terminal 87 after key is turned ON.
Should be equivalent to
battery voltage. Is it?
YES
Repair open wire or
connection on
GY wire.
NO
Check for multiple codes.
See 4.4 CHECKING FOR
TROUBLE CODES .
Attach Breakout Box (HD-42682) to ECM. Mea-
sure resistance between ECM and coil terminals
as follows:
Resistance should be less than 0.5 ohms. Is it?
Trouble
Code
Coil
Terminal
ECM
Terminal
24
(Front)
A
(BE/O)
7
25
(Rear)
C
(Y/BE)
6
NO
Repair open wire
or connection.
YES
Perform 4.7 WIGGLE
TEST . Intermittents
found?
NO YES
Repair as
necessary.
1
Replace ECM. See
4.29 ELECTRONIC
CONTROL MODULE .
1
2
7856
7875
7860
7870
7865
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).