Oil Pressure Switch Inspection
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
- Switch the ignition ON (engine off) and verify that the oil pressure warning light is illuminated.
- Start the engine and verify that the oil pressure warning light turns off.
- If the oil pressure warning light is not illuminated or remains illuminated, inspect the wiring harness between the oil pressure switch and the PCM and CAN line between the PCM and the instrument cluster.
- If the related wiring harnesses are not malfunctioning, inspect the oil pressure.
(See OIL PRESSURE INSPECTION .)
- If the oil pressure is normal, replace the oil pressure switch.
- If the related wiring harnesses are not malfunctioning, inspect the oil pressure.
- If the oil pressure warning light is not illuminated or remains illuminated, inspect the wiring harness between the oil pressure switch and the PCM and CAN line between the PCM and the instrument cluster.