4-64 2002 Buell X1: Fuel System
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Code 16 Test (Part 1 of 2)
Perform charging system tests.
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
ECM safety interlock relay with key ON.
Is voltage drop greater than 0.5 volt?
NO
Replace ignition
relay.
1
2
Clear codes and confirm proper
operation with no check engine
lamp.
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
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