Buell XB9R 2003, Service Manual, Page: 357 / 566

4-60 2003 Buell XB9R: Fuel System
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Code 16 Test (Part 1 of 2)
Perform charging system tests.
See 7.6 CHARGING SYSTEM
Charging system OK?
YES NO
Repair charging
system.
Remove spark plug cables from spark plugs.
Attach Breakout Box (HD-42682) to ECM.
Measure voltage at ECM Pin 1 (+) and
Pin 11 (-) of [10] on Breakout Box while cranking
engine. Disregard voltage during first two seconds
of cranking. Is voltage above 6.2 volts?
YES NO
Measure voltage drop between Battery
Positive Terminal (+) and ECM Pin 1 of [10]
on Breakout Box with key ON.
Is voltage drop greater than 0.5 volt?
System
OK.
YES NO
Check for excessive starter cur-
rent draw. See 5.6 STARTER
SYSTEM TESTING .
Measure voltage drop between Battery
Positive Terminal (+) and Terminal 87 on
ignition relay with key ON.
Is voltage drop greater than 0.5 volt?
NO
Replace ignition
relay.
1
2
YES
Measure voltage drop between Battery
Positive Terminal (+) and GY/O Terminal 30
on ignition relay with key ON.
Is voltage drop greater than 0.5 volt?
YES
Go to Code 16 Test
(Part 2 of 2).
STOP
Replace GY wire
or terminals.
NO
7770
7768
7766
7767
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).