Engine Oil Pressure Sensor/Switch B Low

Where it lives

For P055C, the part to look at first is the sensor named here.

Check these first

• A short to ground in the sensor B circuit
• A failed oil pressure sensor or switch B
• Low oil level or pressure
• A clogged oil filter or passage
• Worn engine bearings

What to do next

1. Check oil level and top off or change it
2. Inspect the sensor B wiring for a short to ground
3. Verify oil pressure with a mechanical gauge
4. Check the oil filter and passages for a clog
5. Replace the oil pressure sensor or switch B
6. Clear the code and retest

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