Buell 2006LIGHTNING MODELS, Service Manual, Page: 434 / 638

4-92 2006 Buell Lightning: Fuel System
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Code 56 (Part 2 of 2)
Continued from Code 56 (Part 1 of 2) .
Reconnect cam position sensor connector [14]. Using Breakout
Box, measure voltage between Pin 3 and Pin 7 while cranking
the engine. Does voltage fluctuate between 0-5 volts?
YES NO
Check for continuity on GN/W wire
between Terminal B of connector [14]
and Terminal 3 of connector [11].
Continuity present?
Intermittent open in GN/W wire or
short in BK/W, W/BK or R/W.
Perform 4.7 WIGGLE TEST and
repair intermittent.
YES NO
Repair. Remove timing cover and cam position
sensor. Observe rotor cup while cranking
engine. Does rotor turn?
YES
Check rotor for damage.
Is rotor loose or damaged?
NO
Is rotor attached
properly?
YES
Remove gearcase
cover and inspect
for damage.
NO
Repair.
YES
Replace rotor
and retest.
NO
Replace cam position sensor
and clear code. Retest. Prob-
lem still exist?
YES
Install original cam
position sensor.
Replace ECM. See
4.30 ELECTRONIC
CONTROL MODULE .
NO
System
OK.
2
3 3
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).