Question

technician a says that the output drivers in the pcm typically send either simple on/off signals or pulse - width - modulated signals to the actuators, depending on the actuator being controlled. technician b says that in many cases, the software in the pcms memory can be updated by uploading software updates, called a reflash process. who is correct?

a. technician a
b. technician b
c. both technicians a and technician b
d. neither technician a nor technician b

Explanation:

Technician A is correct as PCM output drivers send on/off or pulse - width - modulated signals to actuators based on the actuator. Technician B is also correct as reflashing is a common way to update PCM software memory.

Answer:

C. Both Technicians A and Technician B