AutoCodes – Ford – P051C Ford

P051C Ford 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 Ford 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.

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Code Popularity 4,348

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 27, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P051C Ford Description

The Engine Control Module (ECM) monitors the Crankcase Pressure Sensor signal. The ECM sets the OBDII code when the Crankcase Pressure Sensor is not to factory specifications.

OBDII Code P051C Ford - Crankcase Pressure Sensor Circuit Low - AutoCodes.com — P051C Ford Code - Crankcase Pressure Sensor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P051C Ford?

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 Ford?

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 Ford 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 Ford code?

Need more information on how to fix the P051C Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P051C Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P051C Ford Code

1. What are the common symptoms of OBDII code P051C in a Ford vehicle?

- Common symptoms include rough idling, loss of power, decreased fuel efficiency, and illuminated check engine light.

2. What typically causes the OBDII code P051C in a Ford vehicle?

- The code is usually triggered by a malfunction in the crankcase pressure sensor circuit, which can be caused by damaged wiring, a faulty sensor, or a poor electrical connection.

3. How can I diagnose the cause of the OBDII code P051C in my Ford vehicle?

- A thorough inspection of the crankcase pressure sensor and its wiring harness is recommended. Checking for loose connections, damaged wires, or a faulty sensor can help pinpoint the issue.

4. Can I continue driving my Ford vehicle with the OBDII code P051C present?

- It is not advisable to continue driving with this code active, as it can lead to further engine damage or performance issues. It is recommended to address the issue promptly.

5. Is it possible to repair the OBDII code P051C in a Ford vehicle myself?

- Depending on your technical skills and experience, you may be able to repair the issue yourself by replacing the faulty crankcase pressure sensor or repairing any damaged wiring. However, professional help is recommended for complex issues.

6. What are the potential consequences of ignoring the OBDII code P051C in a Ford vehicle?

- Ignoring this code can result in poor engine performance, increased emissions, and potential damage to other engine components over time. It is best to address the issue promptly.

7. How much does it typically cost to repair the OBDII code P051C in a Ford vehicle?

- The cost of repairs can vary depending on the underlying issue and the extent of the damage. Replacing a faulty sensor or repairing wiring may cost a few hundred dollars, including parts and labor.

8. Can a faulty crankcase pressure sensor cause other OBDII codes to appear in a Ford vehicle?

- Yes, a malfunctioning crankcase pressure sensor can cause other related codes to appear, such as P051B (Crankcase Pressure Sensor Circuit High) or P051D (Crankcase Pressure Sensor Circuit Intermittent).

9. How long does it typically take to repair the OBDII code P051C in a Ford vehicle?

- The repair time can vary depending on the complexity of the issue and the availability of parts. In general, a skilled technician can diagnose and repair the problem in a few hours to a day.

10. Is it possible for the OBDII code P051C to reappear after repairs have been made in a Ford vehicle?

- If the underlying issue was not fully addressed during the initial repair, the code can reappear. Proper diagnosis and thorough repair are essential to prevent the code from coming back.