ECU Quiz

Which of the following is NOT an output from the ECU?

• Fuel pump relay

• Lamps

• Throttle position

• Idle air control

Which of the following is an example of a digital signal provided by sensors?

• Crankshaft position

• Manifold air pressure

• Intake air temperature

• Lamps

An output signal from a sensor increases with speed, this is known as?

• Amplitude

• Frequency

• Time

• Voltage

What happens to the signal after it is level converted in the digital input circuit?

• It is discarded

• It is amplified

• It is sampled by the processing circuitry

• It is converted to analog

What is the function of EPROM in the processing circuit?

• To store temporary data

• To store software programs

• To process input data

• To control the clock speed

What does ROM stand for?

• Random Only Memory

• Read Only Memory

• Readable Only Memory

• Random Operating Memory

What happens to the software in ROM if the ECU is replaced?

• It remains unchanged.

• It is updated automatically.

• It is replaced with new software.

• It is deleted.

Which of the following is NOT an operating parameter stored in PROM?

• Color of the vehicle

• Engine size

• Fuel system type

• Emission requirements

What is the purpose of storing operating parameters in PROM?

• To ensure the vehicle operates correctly

• To increase the vehicle's speed

• To reduce the vehicle's weight

• To change the vehicle's color

Which component in a vehicle can be updated or replaced as operating requirements change?

• PROM

• Battery

• Tires

• Seats