4-74 2002 Buell S3T: Fuel System
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Code 33 Test
YES
With DVOM still connected, check for inter-
mittents by performing 4.8 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 if Scan-
alyzer is available 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 (4.29 ELECTRONIC
CONTROL MODULE).
System
OK.
Fuel pump
on continuously?
YES
Locate and repair
short to ground on
BN/Y wire.
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
Replace fuel pump. See
4.39 FUEL PUMP.
Repair
open.
NO
Clear codes and confirm proper
operation with no check engine
lamp.
NO
1
2
3
3
7891
7892
7893
7896
78987897
7894
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