ELECTRIC FUEL PUMP CONTROL SYSTEM (4WD models) - Component Parts Description / System Description
EF & EC-177prose procedureElectric fuel pump control system applies to 4WD models (GA13DS/GA14DS/GA16DS).
Component Parts Description
ELECTRIC FUEL PUMP
The fuel pump, which is located in the fuel tank, is a turbine type pump.
FUEL PUMP CONTROL UNIT
The fuel pump control unit is located at dash side. Electric fuel pump is controlled by fuel pump control unit. This unit drives electric fuel pump in response to the signals from alternator "L" terminal, ignition switch and oil pressure switch.
System Description
The electric fuel pump is controlled by the fuel pump control unit. This unit drives the electric fuel pump in response to signals from the alternator "L" terminal, ignition switch and oil pressure switch.
Fuel Pump Control System Block Diagram
Probable Cause
Corrective Action
Alternator "L" terminal
Ignition switch
Oil pressure switch
Fuel pump control module
Fuel pump control module
Fuel pump
Cause
Alternator "L" terminal
Cause
Ignition switch
Cause
Oil pressure switch
Fix
Fuel pump control module
Cause
Fuel pump control module
Fix
Fuel pump