Mazda CX-5 Service & Repair Manual: Intake Air Temperature (Iat) Sensor

IAT Sensor No.1

Purpose/Function

• Detects the IAT before it passes through the throttle body as basic information for mainly determining the fuel injection amount.

• Detects the IAT before it passes through the throttle body and inputs it to the PCM as an IAT signal.

Construction

• Built into the MAF sensor.

  

  
  

• A cold resistor has been adopted as the detecting element for detecting the IAT.

Operation

• Inputs the signal, which fluctuates according to the IAT after passing through the air cleaner, to the PCM.

  

  
  

IAT sensor No.1 characteristic

Fail-safe

IAT Sensor No.2

Purpose/Function

• Detects the IAT (in intake manifold) after it passes through the throttle body as basic information for mainly determining the fuel injection amount.

• Detects the IAT (in intake manifold) after it passes through the throttle body and inputs it to the PCM as an intake air temperature signal.

Construction

• Built into the MAP sensor.

  

  
  

• A cold resistor has been adopted as the detecting element for detecting the IAT.

Operation

• Inputs the signal, which fluctuates according to the IAT in the intake manifold, to the PCM.

  

  
  

IAT sensor No.2 characteristic

Fail-safe

• Function not equipped.