3-76 FUEL SYSTEM (DFI)
Fuel Pump (Service Code 45)
If the reading is good, the power source voltage is normal.
Inspect operating source voltage (see in this section).
If the reading is incorrect, check the following:
Main Fuse 30 A in Starter Relay (see Electrical System
DFI Fuse 15 A (see this chapter)
Ignition Fuse 10 A in Junction Box (see Electrical System
DFI Main Relay (see this chapter)
Wiring for Fuel Pump Power Source (see next diagram)
Vehicle-down Sensor (see this chapter)
Operating Voltage Inspection
Be sure the battery is fully charged.
Turn the ignition SW OFF.
Remove the seat (see Frame chapter).
Measure the operating voltage of the fuel pump at the fuel
pump connector [A] with the connector joined.
Hand Tester [B]
Needle Adapters [C]
Pump Operating Voltage at Pump Connector
Connections to Pump Connector
Tester (+) → W/R lead [D]
Tester (−) → BK/W lead [E]
(12.5 V or more) for 3
seconds, and than 0 V
Pump Harness [F] and Main Harness [G]
If the measurement is normal, replace the fuel pump.
If the measurement stays on the battery voltage or 0 volt,
turn the ignition SW OFF, and remove the fuel tank. And
inspect the BK/W lead between the ECU connector and
the fuel pump for continuity.
If the wiring is good, inspect the ECU for its ground, and
power supply (see ECU section in this chapter). If the
ground and power supply are good, the ECU is suspect.
Replace the ECU.
After inspection, remove the needle adapter, and apply
silicone sealant to the seal of the connector for water-
Silicone Sealant (Kawasaki Bond: 56019-120)
- Sealing of Fuel Pump Connector