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Technician A says that on-board self-diagnostics test mode procedures should be conducted on a cold engine. Technician B says that many diagnostic trouble codes (DTCs) will monitor items only when the engine control system is in closed loop. Who is correct?

A. Neither Technician A nor B

B. Both Technicians A and B

C. Technician A

D. Technician B

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Answers (2)
  1. 14 December, 18:27
    0
    Answer: d
  2. 14 December, 18:27
    0
    A, B

    Explanation:

    Both technician are correct.
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