Fuel Pump Module - Yamaha WaveRunner FX SHO Service Manual

– +
ELEC
Fuel system
1
L B
7-46

Fuel pump module

1. Check:
• Fuel pump module operation sound
Does not sound → Measure the fuel
pump module input voltage.
Checking steps:
1. Connect a computer to the watercraft to
use the YDIS.
2. Using the "Stationary test" of the YDIS, lis-
ten for the fuel pump module operation
sound.
2. Measure:
• Fuel pump module input voltage
Out of specification → Check the wiring
harness.
Measurement steps:
1. Disconnect the fuel pump module coupler
1.
2. Push the unlock button, and then measure
the input voltage at the fuel pump module
coupler terminals (wiring harness end).
NOTE:
After the unlock button is pushed, voltage will
only be applied to the fuel pump module for 3
seconds.
Fuel pump module input voltage:
Blue (L) – Black (B)
12 V (battery voltage)
E
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