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Author Question: An IAT is being tested. After the vehicle has been allowed to cool for several hours, a scan tool is ... (Read 172 times)

jjjetplane

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on: Jun 22, 2018
An IAT is being tested. After the vehicle has been allowed to cool for several hours, a scan tool is used to observe the IAT sensor reading. When compared to the engine coolant temperature (ECT), the two temperatures should be within how many degrees F of each other:
 
  A) 5 B) 25 C) 15 D) 10

Question 2

Technician A says that all temperature sensors are PTC devices that decrease in resistance as the temperature increases. Technician B says that some vehicle manufacturers use a stepped ECT circuit inside the PCM to broaden the accuracy of the sensor. Which technician is correct?
 
  A) Technician A only B) Technician B only
  C) Both technicians D) Neither technician


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fatboyy09

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Reply #1 on: Jun 22, 2018
Answer to Question 1

A

Answer to Question 2

B


jjjetplane

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Reply 2 on: Jun 22, 2018
Great answer, keep it coming :)

kthug

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Reply 3 on: Yesterday
Excellent

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