Off-vehicle inspection

WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

Remove the oil pressure switch.
Apply air pressure at 400-440 kPa {4.1-4.4 kgf/cm ² , 58-63 psi}
Inspect continuity the between oil pressure switch terminal and screw part.
- If there is no continuity, replace the oil pressure switch. (See OIL PRESSURE SWITCH REMOVAL/INSTALLATION .)
Fig 1: Checking Continuity Of Oil Pressure Switch
Courtesy of MAZDA MOTORS CORP.
Install the oil pressure switch.