Fuel Pump Control Circuit: Notes

NOTE: For information on testing relays and fuel system components, see the SYSTEM/COMPONENT TESTS article. Relays may be identified by illustration in the THEORY/OPERATION article. Vehicles are equipped with different combinations of fuel system electrical components. For complete wiring circuit of electrical components on a specific model, see wiring diagram in WIRING DIAGRAMS article.

NOTE: Supra uses EFI main relay, No. 2 EFI relay (Turbo models) and fuel pump Electronic Control Unit (ECU) for controlling fuel pump.