Trouble Code 33 - Buell 2007 FIREBOLT Service Manual

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TROUBLE CODE 33

GENERAL
Fuel Pump
The fuel pump assembly is shown in
provides ground to the fuel pump. Code 33 will set if:
BN/Y wire is shorted to 12 volts. This will also cause the
ignition fuse to blow. See
BN/Y wire is shorted to ground. This will cause the fuel
pump to run continuously even when the motor is not
running.
Fuel pump motor stalls or spins without providing fuel
pressure.
DIAGNOSTICS
Diagnostic Notes
The reference numbers below correlate with the circled num-
bers on the Code 33 flow chart.
1. Connect BREAKOUT BOX (Part No. HD-42682) to ECM.
See 4.6 BREAKOUT BOX.
2. Use HARNESS CONNECTOR TEST KIT (Part No. HD-
41404), red pin probe and patch cord.
3. Use HARNESS CONNECTOR TEST KIT (Part No. HD-
41404), gray socket probe and patch cord.
4-74 2007 Buell Firebolt: Fuel System
Figure 4-52. ECM Pin 3
Figure 4-39.
1
2
3
1. Low fuel level sensor
2. Pressure regulator
3. Wiring harness
4. Fuel screen
Figure 4-52. Fuel Pump Assembly
4.24
10932b
4