Checking the intake air temperature (IAT) sensor function

Fig 1: Identifying Ignition Switch ON Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on.

  Read off the outside temperature in Volt. Check that it is correct according to the table values:Intake air temperature (IAT) sensor inlet .

  Fig 2: Identifying VCT2000 Diagnostic Tool

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the temperature reading OK? 

• YES 

  Refer to Faulty signal. Intermittent fault 

• NO 

  Refer to Checking connector