Question

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?

Answer 1

Technician B.

Step-by-step explanation:

The claim of technician B that some vehicle manufacturers use a stepped ECT circuit inside the PCM to broaden the accuracy of the sensor is correct.