Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which component energises the starter solenoid?

  • A.The engine control unit, which commands the starter after checking the immobiliser and the gear selector position
  • B.The ignition switch through a relay on most vehicles
  • C.The battery directly, which supplies the solenoid whenever the key is turned to the start position by the driver
  • D.The alternator

Answer: B

A relay spares the ignition switch the solenoid current, and on modern vehicles the engine controller commands that relay. Controller commanded starting is now the norm, which makes the last option correct for a current vehicle rather than wrong. Naming the cost of a choice alongside its benefit is what turns a fact into a design decision. A symptom that appears under one condition and not another is what narrows the diagnosis quickly.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.