929 V6-3.0L DOHC (1993)
Fuel Pump Relay: Description and Operation
PURPOSE
Provides power to electric fuel pump.
LOCATION
Relay panel forward of right strut tower.
OPERATION
When the ignition is turned ON, power from the ignition switch is applied to the relay hold-in coil. The relay is energized when the PCME
completes the circuit to ground through the relay coil. The relay in turn supplies power from the main relay to the electric fuel pump.
As a safety feature, the relay is only energized when the engine is running or being cranked by the starter motor. If the engine dies, the PCME
turns the relay OFF.
