P051A
Crankcase Pressure Sensor A Circuit
P051A is an OBD-II diagnostic trouble code meaning: Crankcase Pressure Sensor A Circuit. Common causes: crankcase pressure sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Increased oil consumption
- Engine oil leaks
- Unstable engine operation
Causes
- Crankcase pressure sensor malfunction
- Open or short circuit in wiring harness
- Poor contact in the sensor connector
- Mechanical problems in the crankcase ventilation system
How to Fix
- Check the integrity of the sensor wiring harness
- Check the contacts in the sensor connector
- Check the resistance of the crankcase pressure sensor
- Check the crankcase ventilation system for blockages
- Replace crankcase pressure sensor if necessary
Related codes
Error P051A by Vehicle Brand
FAQ
What does the P051A code mean?
P051A is an OBD-II diagnostic trouble code that indicates: Crankcase Pressure Sensor A Circuit
What causes a P051A error code?
The most common causes of P051A include: Crankcase pressure sensor malfunction; Open or short circuit in wiring harness; Poor contact in the sensor connector; Mechanical problems in the crankcase ventilation system.
How do I fix a P051A diagnostic trouble code?
To fix P051A: Check the integrity of the sensor wiring harness. Check the contacts in the sensor connector. Check the resistance of the crankcase pressure sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P051A?
Limited driving only, diagnose soon
How much does it cost to fix P051A?
The estimated repair cost for P051A is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat