Trouble Code 16 - Buell 2007 FIREBOLT Service Manual

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TROUBLE CODE 16

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
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.
4-60 2007 Buell Firebolt: Fuel System
4.6 BREAKOUT BOX.
8379
1
1. Key Switch Relay
2. Ignition Relay
3. Start Relay
Figure 4-40. Electrical Relays
10960
Figure 4-41. Fuse Block
bd0016ax
Spare
19 13
Spare
20 14
Empty
21
15
ECM
22 16
Lights
23
17
Key Sw
24
18
Figure 4-42. Fuses and Diode
4.20
2
3
Empty
7 1
Diode
2
8
Bk/Hn/Mflr
3
9
Fan
10 4
IGN
11 11 5
Acces.
12 6