4-76 2006 Buell Lightning: Fuel System
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Code 33 Test
YES
With DVOM still connected, check for inter-
mittents by performing 4.7 WIGGLE TEST
while repeating first test of this flow chart.
Intermittents present?
Attach Breakout Box (HD-42682) to ECM. With DVOM,
measure voltage between Pin 3 of [10] and ground
after ignition switch is turned ON. Meter should read
less than 2 volts and pump should run
for 2-3 seconds. Does it?
YES NO
Repair as
necessary.
Replace fuel pump. See 4.39
FUEL PUMP. Clear codes and
road test. Did check engine lamp
come on and set only CODE 33?
YES NO
Install original
fuel pump (4.39 FUEL
PUMP) and replace ECM
(4.30 ELECTRONIC
CONTROL MODULE).
System
OK.
Fuel pump
on continuously?
NO
Check continuity of BN/Y wire
between [10] Pin 3 and Pin C of
[86]. Continuity present?
YES
Repair
open.
NO
Check continuity of GY
wire from ignition relay
Terminal 87 to Pin D of
[86]. Continuity present?
YES
Repair
open.
NO
NO
1
2
3
3
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).
Disconnect ECM.
Does fuel pump run
continuously?
YES
NO
Locate and repair
short to ground on
BN/Y wire.
Replace ECM. See
4.30 ELECTRONIC
CONTROL MODULE.
YES
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