Visual Inspection

WARNING: This page is about a different car, the 2009 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative battery cable.
Disconnect the MAF/IAT sensor connector.
Remove the MAF/IAT sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L5] .)
Visually inspect the MAF/IAT sensor for the following:
- Damage, cracks, soiling
- Rusted sensor terminal
- Bent sensor terminal
  - If there is any malfunction, repair or replace the MAF/IAT sensor. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [L5] .)