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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

While discussing the MIL on OBD 11 systems: Technician A says that the MIL will flash if the PCM detects a fault in a sensor or circuit. Technician B says that as soon as the PCM has detected a fault, it will turn on the MIL. Who is correct?

  1. Technician A

  • Technician B
  • Both A and B
  • Neither A nor B
  • To determine

    The technician with a correct approach.

    Explanation

    Given information:

    While, discussing the MIL on OBD 2 systems:

    Technician A says that the MIL will flash if the PCM detects a fault in a sensor or circuit.

    Technician B says that as soon as the PCM has detected a fault, it will turn on MIL.

    OBD system is an On-Board Diagnosis system. It can be installed in all cars and some light duty trucks. It helps in controlling the engine parts and it has proved its importance by keeping an eye on other parts of a vehicles also, for example- chassis, accessories, and other components of cars.

    It helps in a vehicle’s maintenance and diagnoses parts of a vehicle. It helps in producing less emission thus protecting the environment from harmful emission caused by a vehicle’s emission. The diagnosis or maintenance engine light is present at the dashboard. With these light signals, we can check the service needed and the problems caused to a vehicle...

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