Technician A says a block or ladder diagrams are used to aid in troubleshooting air conditioning duct system faults.Technician Bsays the use of test lights is not recommended for under dash service.Who is correct? A) Technician A only B) Technician B only C) Both A and B D) Neither A nor B

Question

Quizplus · Accepted Answer

Block or ladder diagrams are indeed helpful for troubleshooting air conditioning duct systems as they provide a simplified visual representation of the system's electrical circuits, aiding in identifying faults. The use of test lights under the dash is generally not recommended because they can potentially damage sensitive electronic components or airbag systems due to the electrical load they introduce.

Technician A Says a Block or Ladder Diagrams Are Used