The following statement pertain to the electric circuit of the engine control system. Depending on models, the battery supplies the power to the enjgine ECU for a while even if the ignition switch is turned off.Group of answer choicesTrueFalseNext

The following statement pertain to the electric circuit of the engine control system. The constant power supply (BATT) of the power circuitry function the backup when the power circuitry is abnormal.Group of answer choicesTrueFalse

The following illustration shows the fuel pump control circuit. For its operation, select the statement that is False.Group of answer choicesThe engine ECU turns on the circuit opening relay and the fuel pump operates while the ignition switch is at IG position.The STA signal is input in the engine ECU and the fuel pump operates while the ignition switch is at ST position.The NE signal is input in the engine ECU while the engine is running and the fuel pump operates continuously.If the engine is stalled, the fuel pump is stopped because the NE signal is not input in the engine ECU even if the ignition switch is at IG position.

The following statement pertain to the electric circuit of the engine control system. Grounds of all sensors and actuators are grounded the body nearby the parts.Group of answer choicesTrueFalse

Signals sent from sensors to the engine ECU are the amount of current.Group of answer choicesTrueFalse

What is the state of the switch that is just powered on A. On B. Initialized C. Off D. Running