Buell 2006LIGHTNING MODELS, Service Manual, Page: 391 / 638

2006 Buell Lightning: Fuel System 4-49
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Code 13 Test (Part 1 of 3)
Install Breakout Box (HD-42682) leaving
harness side connector [11] disconnected
from the Breakout Box. Is the O2 voltage
approximately 0.5 volts?
NO.
0 volts.
NO.
Greater than
1 volt.
YES
YES NO
Locate and repair
short to ground on
V/GY wire.
Replace ECM. See
4.30 ELECTRONIC
CONTROL MODULE .
Disconnect O2 sensor from harness. Connect DVOM to Pin 4 (+) and Pin 7 (-) of con-
nector [11] (gray).
Turn ignition ON and start engine. (Engine must be on and running to read O2 sensor
values). Observe O2 voltage. Is it approximately 0.5 volts?
Install Breakout Box (HD-42682) leaving
harness side connector [11] disconnected
from the Breakout Box. Is the O2 voltage
approximately 0.5 volts?
YES NO
Inspect V/GY
wire for shorts to
voltage and repair.
Replace ECM. See
4.30 ELECTRONIC
CONTROL MODULE .
Go to Code 13 Test
(Part 2 of 3).
STOP
7656
7659 7658
1 1
7657
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).