Exam 18: Electronic Throttle Control Systems

Technician A says that an electronic throttle control uses a stepper motor. Technician B says that an electronic throttle control uses a vacuum controlled stepper motor to keep the throttle at a 16%-20% throttle opening. Which technician is correct?

When the ignition is first turned on a click noise is heard from under the hood of a vehicle equipped with ETC. Technician A says that this is the normal operation of the ETC self-test. Technician B says that the TAC motor should not move unless the engine is running. Which technician is correct?

Which of these tools is needed when diagnosing an electronic throttle system?

Technician A says that an electronic throttle control uses a stepper motor. Technician B says that an electronic throttle control uses is spring loaded to about 16% to 20% throttle opening. Which technician is correct?

Which component in this photograph is the drive (motor) gear?

All electronic throttle control system includes the following components, EXCEPT ________.

A vehicle with an electronic throttle is idling with the transmission in PARK. When the accelerator pedal is pressed down, the engine does not increase above idle speed. This means ________.

Identify the throttle position sensor assembly in this diagram.

What type of electric motor is the throttle plate actuator motor?

In this diagram, which terminals are used for the TP sensors?

The accelerator pedal position sensor contains ________ separate sensors.

A throttle body relearn procedure uses ________ to relearn proper idle speed.

After servicing the air filter on an ETC equipped vehicle, the technician has forgotten to connect the throttle motor wiring. What will happen when the vehicle is started?

The default position varies depending on the vehicle and usually results in an engine speed of ________.