Pinpoint Test DC: Mass Airflow (MAF) Sensor: Introduction: Notes

This pinpoint test is intended to diagnose the following:

• mass airflow (MAF) sensor (12B579)
• harness circuits: IAT, GND, MAF, MAFRTN, SIGRTN and VPWR
• powertrain control module (PCM) (12A650)
  Fig 1: Identifying Mass Airflow/Intake Air Temperature (MAF/IAT) Sensor Connector

  Courtesy of FORD MOTOR CO.