Technician A says that temperature sensors decrease in resistance ...

[ghost!]

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?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B

[kristenb95]

Technician B only

[ghost!]

Thanks for the timely response, appreciate it

[CAPTAINAMERICA]

Great answer, keep it coming