P051C Code - Crankcase Pressure Sensor Circuit Low
Quick Answer
The Engine Control Module (ECM) monitors the Crankcase Pressure Sensor signal. Common causes include Faulty Crankcase Pressure Sensor, Crankcase Pressure Sensor harness is open or shorted, Crankcase Pressure Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P051C indicates Crankcase Pressure Sensor Circuit Low.
- Common causes
- Common causes include Faulty Crankcase Pressure Sensor, Crankcase Pressure Sensor harness is open or shorted, Crankcase Pressure Sensor circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P051C Description
What are the Possible Causes of the DTC P051C?
- Faulty Crankcase Pressure Sensor
- Crankcase Pressure Sensor harness is open or shorted
- Crankcase Pressure Sensor circuit poor electrical connection
How to Fix the DTC P051C?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P051C code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P051C code?
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Need Help with the Code?
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Information for Specific Makes
- P051C Dodge — Crankcase Pressure Sensor Circuit Low
- P051C Ford — Crankcase Pressure Sensor Circuit Low
Frequently Asked Questions about P051C Code
1. What does the OBDII code P051C mean?
P051C indicates a low signal from the crankcase pressure sensor circuit, which monitors pressure levels in the crankcase to ensure proper engine operation.
2. What are the common symptoms of code P051C?
Symptoms may include reduced engine performance, increased oil consumption, rough idle, and the check engine light illuminated.
3. What causes the P051C code to appear?
Possible causes include a faulty crankcase pressure sensor, damaged wiring or connectors, excessive crankcase pressure, or an issue with the engine control module (ECM).
4. Can I still drive my car with a P051C code?
While the car may still be drivable, ignoring this code can lead to further engine damage or increased oil leaks. It’s best to address the issue promptly.
5. How do you fix the P051C code?
Repairs may include replacing the crankcase pressure sensor, repairing damaged wiring or connectors, or addressing excessive crankcase pressure through engine repairs.
6. How do you diagnose a P051C code?
A mechanic will check the crankcase pressure sensor, inspect the wiring and connectors, and use a scan tool to monitor sensor data for irregularities.
7. Can a dirty sensor cause the P051C code?
Yes, a dirty or clogged crankcase pressure sensor can lead to inaccurate readings and trigger the P051C code.
8. How much does it cost to fix a P051C code?
Repair costs vary depending on the cause, but replacing the crankcase pressure sensor typically ranges from $100 to $300, including labor.
9. Can an oil change help with the P051C code?
If excessive crankcase pressure is caused by contaminated oil, an oil change might help, but other issues may still need to be addressed.
10. Is the P051C code related to PCV system problems?
Yes, issues with the Positive Crankcase Ventilation (PCV) system can cause excessive crankcase pressure and contribute to the P051C code.
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