MANUALS · FUEL [13] · страница 119 из 340 · Открыть оригинал PDF ↗

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FUEL PUMP

Pfuoio1

OPERATION

Thefuelpumpisdrivenwhenthe engine is
cranking and while the engine is running
Whentheengineiscrankingandwhilethe
engine is running; the engine control unit turns
the power transistor ON to supply power to the

control relay coil.This causes the control relay
switch to turn ONand current is suppliedfrom
the ignition switch via the controlrelayswitch to
drive the fuel pump:

Проверка

UsingMUT-II

Таблица в оригинале

Распознанный текст таблицы — требует сверки с оригиналом

Function	Item No.	Drive	Check condition	Check content	Normal state
Actuator test	07	Fuel pump is driven to circulate fuel	Engine cranking Forced drive of fuel pump Chk i d f	Hold return hose with fingers to feel pulsation indicating fuel 'flow	Pulsation is felt
			ec s mae or above two conditions	Listen to pump operating sound near fuel tank	Operating sound is heard

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