FUEL PUMP CONTROL OPERATION [13B-MSP]
id0140g1102200
Operation condition
• When the ignition switch is turned from off to on, the fuel pump relay turns on for approx. 1 s.
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Note
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• When the ignition switch is turned from off to on, the operation sound of the fuel pump unit can be heard, but this does not indicate an abnormality.
• During cranking (ignition switch: START), the fuel pump relay turns on for approx. 1 s.
• After the engine starts (ignition switch: ON), the fuel pump relay turns on repeatedly each time an input signal from the eccentric shaft position sensor is input. Due to this, the fuel pump relay remains on.
• When the engine stalls (ignition switch: ON) and the input signal from the eccentric shaft position sensor stops, the fuel pump relay turns on for approx. 2 s, and then turns off.