2007 Buell Firebolt: Fuel System 4-63
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Code 16 Test (Part 2 of 2)
Continued from Code 16 Test (Part 1 of 2).
Measure voltage drop between Battery
Positive Terminal (+) and GY/O wire Termi-
nal (-) on ignition fuse with key ON.
Is voltage drop greater than 0.5 volt?
NO
Replace fuse or
fuse terminals.
YES
Measure voltage drop between Battery
Positive Terminal (+) and R wire Terminal 30
of key switch relay with key ON. Is voltage
drop greater than 0.5 volt?
YES NO
Replace key switch
relay.
Measure voltage drop between Battery
Positive Terminal (+) and red wire of 30 amp
main fuse with key ON.
Is voltage drop greater than 0.5 volt?
YES NO
Repair R wire or
terminals.
Measure voltage drop between Battery
Positive Terminal (+) and R/Y wire of 30
amp Main fuse with key ON.
Is voltage drop greater than 0.5 volt?
YES NO
Replace main fuse.
Replace R/Y wire between main fuse and
battery.
YES
Measure voltage drop between Battery
Positive Terminal (+) and R/BK wire
Terminal on 15 amp ignition fuse with key
ON. Is voltage drop greater than 0.5 volt?
YES
Measure voltage drop between Battery
Positive Terminal (+) and R/BK wire Termi-
nal 87 of key switch relay with key ON. Is
voltage drop greater than 0.5 volt?
NO
Repair GY/O wire
or terminals.
NO
Repair R/BK wire or
terminals.
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).
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