Circuit Opening Relay
WARNING: This page is about a different car, the 1994 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
Circuit opening relay controls fuel pump circuit. When engine is cranking, circuit opening relay receives a start signal.
Start signal energizes circuit opening relay during cranking. Circuit opening relay then provides voltage to fuel pump.
Fuel pump switch in airflow meter provides ground for circuit opening relay.