Camry Wagon L4-132 2164cc 2.2L DOHC (5S-FE) (1995)
EFI Main Relay: Description and Operation
PURPOSE
The "EFI Main" relay serves as a source of battery power for several components including the circuit opening relay, (which powers the fuel
pump), and the Engine Control Module (ECM).
OPERATION
ECM Main Power Circuit
The main relay is energized by a signal from the ignition switch. It then supplies battery current from the "EFI" fuse to the ECM and other
components.