Pinpoint Test DC: Mass Air Flow (MAF) Sensor: Introduction: Notes
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.
This pinpoint test is intended to diagnose the following:
- Mass Air Flow Sensor (12B579)
- Harness circuits: MAF SIG, MAF RTN, Vehicle Power (VPWR), Power Ground (PWRGND), IAT and SIGRTN
- Powertrain control module (PCM) (12A650)