What is the fourth step in the Starting the Engine sequence?

What is the fourth step in the Starting the Engine sequence?

• A. Turn battery switch ON
• B. Turn ignition switch ON
• C. Press start button
• D. Allow computer to boot up

Answer: (B)

The action being tested is the proper order to energize the engine so it can be cranked safely. After you’ve powered the electrical system, turning the ignition switch ON energizes the ignition system and the engine control module. With these systems active, the starter circuit is ready to engage when you press the start button. The computer doesn’t require a separate manual boot step—the ECM powers up automatically as power is applied. Finally, the actual cranking happens by pressing the start button after ignition is ON. That’s why turning the ignition switch ON is the correct fourth step.

The action being tested is the proper order to energize the engine so it can be cranked safely. After you’ve powered the electrical system, turning the ignition switch ON energizes the ignition system and the engine control module. With these systems active, the starter circuit is ready to engage when you press the start button. The computer doesn’t require a separate manual boot step—the ECM powers up automatically as power is applied. Finally, the actual cranking happens by pressing the start button after ignition is ON. That’s why turning the ignition switch ON is the correct fourth step.