Buell 2006LIGHTNING MODELS, Service Manual, Page: 415 / 638

2006 Buell Lightning: Fuel System 4-73
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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
4.32 IGNITION COIL .
Use Breakout Box and test light with adapter
for the next inspection.
Front coil codes: Install test light and adapter between
Pin 6 (BK) and ECM Pin 1(R)
.
Rear coil codes: install test light and adapter between
Pin 7 (BK) and ECM Pin 1(R).
Does test lamp flash when engine is cranked?
NO YES
Measure voltage at ignition relay
Terminal 4 (Pin 4 in Relay Center) 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 .
Measure resistance at Breakout Box between
ECM and coil terminals as follows:
Resistance should be less than 0.5 ohms. Is it?
Trouble
Code
Coil
Terminal
Breakout
Box
Terminal
24
(Front)
A
(BE/O)
7 (BK)
25
(Rear)
C
(Y/BE)
6 (BK)
NO
Repair open wire
or connection.
YES
Perform 4.7 WIGGLE
TEST . Intermittents
found?
NO YES
Repair as
necessary.
1
Replace ECM. See
4.30 ELECTRONIC
CONTROL MODULE .
1
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).
3
2