Buell 2002 S3T, Service Manual

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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
7898 7897
7894