Service Manual — page 208 of 715

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3-118 FUEL SYSTEM (DFI)
Fuel Pump
Fuel Pump Operating Voltage Inspection
• Turn  the ignition switch off.
• Remove
  ter).
            the seat (see Seat Removal in the Frame chap-

• Disconnect   the fuel pump lead connector and connect
  the measuring adapter [A] between these connectors as
 shown.
  Main Harness [B]
  Fuel Pump [C]
 Special Tool - Measuring Adapter: 57001-1700
• Connect
  leads.
          a digital meter [D] to the measuring adapter

 Fuel Pump Operating Voltage
   Connections to Adapter:
      Digital Meter (+) → R (pump BK/Y) lead
      Digital Meter (–) → BK (pump BK/W) lead

• Measure   the operating voltage with engine stopped and
  with the connector joined.
• Turn  the engine stop switch run position.
• the ignition switch on.
  Turn
 Operating Voltage
  Standard: Battery Voltage for 3 seconds, and then 0 V

• Turn   the ignition switch off.
  If the reading stays on battery voltage and never shows 0
 V, check the fuel pump relay (see Relay Circuit Inspection
 in the Electrical System chapter).
 If there is still no battery voltage, check the fuel pump re-
 lay (see Relay Circuit Inspection in the Electrical System
 chapter).
 If the fuel pump relay is good, check the fuel pump wirings
 (see Fuel Pump Circuit).
 If there is no continuity, repair or replace the main har-
 ness.
 If there is continuity, replace the fuel pump.
Pressure Regulator Removal
○The pressure regulator [A] is built into the fuel pump [B]
 and can not be removed.