Camry Sedan V6-180.5 2959cc 3.0L DOHC (3VZ-FE) (1992)
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Circuit Opening Relay: Description and Operation
PURPOSE
The circuit opening relay provides power to the fuel pump.
OPERATION
One coil is energized when the key is turned to the start position. The relay contacts close and power is supplied to the fuel pump for starting.
Once the ECU receives a signal from the air flow meter, it grounds the other coil which continues to hold the contacts closed after the key is
released to the run position.
CONSTRUCTION
The relay consists of a single set of contacts controlled by two separate coils.
