4-60 2006 Buell Lightning: Fuel System
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TROUBLE CODE 16 4.20
GENERAL
Battery Voltage
A Code 16 will set if the ECM detects battery positive voltage
less than 6 volts or greater than 20 volts.
●
A low voltage condition typically occurs during activation
of the starter or generally indicates loose wire connec-
tions.
●
A high voltage condition is usually caused by a faulty
voltage regulator.
DIAGNOSTICS
Diagnostic Notes
The reference numbers below correlate with the circled num-
bers on the Code 16 flow charts.
1. The ECM is monitoring voltage at ECM connector [10]
(black) Terminal 1. Connect BREAKOUT BOX (Part No.
HD-42682) to ECM. See 4.6 BREAKOUT BOX.
2. This checks for voltage drops in the ECM power circuit. If
a significant voltage drop is not present, condition may
be caused by excessive starter current draw.
Figure 4-42. Fuse Block and Electrical Relays
(XB12Ss)
12150
Figure 4-43. Fuse Block and Electrical Relays (Typical)
1. Fuse block
2. Key switch relay
3. Ignition relay
4. Start relay
1
2
4
3
10658
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