2003 Kawasaki 1100 STX D.I. Jet Ski Factory Service Manual, Page 100Get this manual
FUEL SYSTEM (DFI) 3-55 Fuel Pump (Service Code 39, 59)
Service Code 39Fuel pump open load Service Code 59Fuel pump driver overheat
Fuel Pump Operation Inspection NOTE
Be sure the battery is fully charged
Inspect the operation using KADIAG Software (see KADIAG Software Manual)The fuel pump motor makes an audible whining sound while runningIf you hear the fuel pump running the pump is okayIf the pump does not work, inspect the power source voltage
Power Source Voltage Inspection NOTE
Be sure the battery is fully charged
Connect the hand tester [A] to the fuel pump connector [B], using the needle adapter set [C]Special ToolsHand Tester: 57001-1394 Needle Adapter Set: 570011457