Title: Verify idle control operation.
Course: Automotive Technology III (20104-III) > Section: ENGINE PERFORMANCE: Fuel, Air Induction, and Exhaust Systems Diagnosis and Repair

Verification should include

- using a scan tool to perform output test for idle air control (IAC)
- comparing actual idle speed to target idle
- referring to service materials and manufacturer guidelines.

Process/Skill Questions:

- What are the differences in methods of idle speed control?
- What is a fly-by wire?
- What is electronic throttle control (ETC)?
- How does a stepper motor operate?