Author Question: Technician A says that temperature sensors decrease in resistance as the temperature increases; this ... (Read 89 times)

Jipu 123 · **on:** Jun 23, 2018

Technician A says that temperature sensors decrease in resistance as the temperature increases; this is called positive temperature coefficient (PTC). Technician B says that some vehicle manufacturers use a stepped ECT circuit inside the PCM to broaden the accuracy of the sensor. Who is right?

A) Technician B only B) Neither technician A nor B
C) Technician A only D) Both technicians A and B

Question 2

Which of the following is NOT a subsystem in a modern automotive HVAC system?

A) Cooling system B) AC controls
C) Refrigeration system D) All of these are HVAC subsystems