Checking the connector

Fig 1: Identifying Ignition Switch OFF Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Check the mass air flow (MAF) sensor connector for contact resistance and oxidation according to Contact resistance and oxidation The intake air temperature (IAT) sensor is integrated in the mass air flow (MAF) sensor.

  Other information: 

  • To access / replace the mass air flow (MAF) sensor, see Replacing the mass air flow (MAF) sensor
  • For information about signals, see Signal specification .
  Fig 2: Identifying Ohmmeter

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the signal OK? 

• YES 

  Refer to Verification 

• NO 

  Refer to Checking the intake air temperature (IAT) sensor signal