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### SFI SYSTEM > Fuel Pump Control Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FUEL PUMP OPERATION

PERFORM ACTIVE TEST (OPERATE OF CIRCUIT OPENING RELAY)

INSPECT INTEGRATION RELAY (C/OPN RELAY)

INSPECT ECM (FC VOLTAGE)

INSPECT ECM POWER SOURCE CIRCUIT

INSPECT RELAY (Marking: F/PMP)

INSPECT FUEL PUMP

CHECK WIRE HARNESS (FUEL PUMP - F/PMP RELAY, FUEL PUMP - BODY GROUND)

CHECK WIRE HARNESS (INTEGRATION RELAY - F/PMP RELAY)

INSPECT RELAY (Marking: F/PMP)

INSPECT FUEL PUMP RESISTOR (RESISTANCE)

CHECK WIRE HARNESS (F/PMP RELAY - FUEL PUMP RESISTOR, FUEL PUMP RESISTOR - FUEL PUMP)