Question

technician a says that a relay is a controlled device that receives signals from the pcm. technician b says that a solenoid is a controlled device that receives signals from the pcm. who is correct?
a. technician a
b. technician b
c. both technician a and technician b
d. neither technician a nor technician b

Explanation:

A PCM (Powertrain Control Module) sends control signals to both relays and solenoids. Relays act as switches controlled by the PCM to manage higher-current circuits, while solenoids (like those in transmissions or fuel systems) are electromechanical devices activated by PCM signals to perform mechanical actions. Both are controlled devices that receive PCM signals.

Answer:

c. Both Technician A and Technician B