4-86 2002 Buell S3T: 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. Is voltage 2-3 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 4.8 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?
Clear codes and confirm proper
operation with no check engine
lamp.
7950
7950
YES
Install original cam posi-
tion sensor. Replace
ECM. See 4.29 ELEC-
TRONIC CONTROL
MODULE.
NO
System
OK.
7940
7960
7952
7951
7940
2
3 3
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