P055A
Engine Oil Pressure Sensor/Switch B Circuit
P055A is an OBD-II diagnostic trouble code meaning: Engine Oil Pressure Sensor/Switch B Circuit. Common causes: oil pressure sensor b malfunction, open or short circuit in wiring harness. Estimated repair cost: $33–111.
Symptoms
- Check Engine Light Is On
- Reduced engine power
- Unstable operation at idle
- Emergency engine operation
Causes
- Oil pressure sensor B malfunction
- Open or short circuit in wiring harness
- Poor contact in the sensor connector
- Low oil level
- Oil pump malfunction
How to Fix
- Check the oil level and condition
- Visually inspect the wiring harness and sensor connectors
- Check the resistance of the oil pressure sensor
- Check the voltage in the sensor circuit
- If necessary, replace the sensor or repair the wiring harness
Related codes
Error P055A by Vehicle Brand
FAQ
What does the P055A code mean?
P055A is an OBD-II diagnostic trouble code that indicates: Engine Oil Pressure Sensor/Switch B Circuit
What causes a P055A error code?
The most common causes of P055A include: Oil pressure sensor B malfunction; Open or short circuit in wiring harness; Poor contact in the sensor connector; Low oil level.
How do I fix a P055A diagnostic trouble code?
To fix P055A: Check the oil level and condition. Visually inspect the wiring harness and sensor connectors. Check the resistance of the oil pressure sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P055A?
Limited driving only, diagnose soon
How much does it cost to fix P055A?
The estimated repair cost for P055A is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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