Technician A says that a PCM uses an output actuator to keep itself informed of engine operating conditions. Technician B says that a PCM uses an output actuator to cause a change in the performance of a circuit or system. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Technician A says that a PCM uses an output actuator to keep itself informed of engine operating conditions.  Technician B says that a PCM uses an output actuator to cause a change in the performance of a circuit or system. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Quizplus · Accepted Answer

Technician B is correct because a PCM (Powertrain Control Module) uses output actuators to control various components and systems in a vehicle, thereby causing changes in their performance. Technician A is incorrect because the PCM uses sensors, not output actuators, to keep itself informed of engine operating conditions.

Technician a Says That a PCM Uses an Output Actuator