AutoCodes – Ford – P255F Ford

P255F Ford Code - A/C Request 'A' Circuit Range/Performance

Quick Answer

The Powertrain Control Module (PCM) monitors the refrigerant pressure through the Air Condition (A/C) Pressure Sensor. Common causes include Low refrigerant, Too much refrigerant, Faulty Low Side Pressure Sensor. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: P255F Ford indicates A/C Request 'A' Circuit Range/Performance.
Common causes: Common causes include Low refrigerant, Too much refrigerant, Faulty Low Side Pressure Sensor.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,329

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 18, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P255F Ford Description

The Powertrain Control Module (PCM) monitors the refrigerant pressure through the Air Condition (A/C) Pressure Sensor. The PCM supplies a 5V reference and a low reference to the sensor. Changes in the A/C refrigerant pressure causes the sensor signal to the PCM to vary. When the pressure is high, the signal is high. When the pressure is low, the signal is low. The PCM sets the OBII code when the signal from the sensor is out of factory specifications.

OBDII Code P255F Ford - A/C Request 'A' Circuit Range/Performance - AutoCodes.com — P255F Ford Code - A/C Request 'A' Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC P255F Ford?

Low refrigerant
Too much refrigerant
Faulty Low Side Pressure Sensor
Low Side Pressure Sensor harness is open or shorted
Low Side Pressure Sensor circuit poor electrical connection

How to Fix the DTC P255F 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 P255F 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 P255F Ford code?

Need more information on how to fix the P255F Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P255F 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 P255F Ford Code

1. What are the common symptoms of OBDII code P255F in a Ford related to the A/C Request 'A' Circuit Range/Performance issue?

- Common symptoms include the air conditioning system not functioning properly, inconsistent cooling, or the A/C compressor not engaging.

2. What are the potential causes of the A/C Request 'A' Circuit Range/Performance trouble code (P255F) in a Ford?

- Possible causes may include a faulty A/C compressor, damaged wiring or connectors in the A/C system, low refrigerant levels, or a malfunctioning A/C pressure sensor.

3. How can I diagnose the A/C Request 'A' Circuit Range/Performance error code (P255F) in my Ford?

- Use a diagnostic scanner to retrieve the specific code, check the A/C system components for any visible damage, inspect wiring and connectors, and test the A/C pressure sensor for proper functioning.

4. Can low refrigerant levels trigger the OBDII code P255F related to A/C Request 'A' Circuit Range/Performance in a Ford?

- Yes, low refrigerant levels can cause the A/C compressor to not engage properly, leading to the P255F trouble code being triggered.

5. What are some repair tips for addressing the A/C Request 'A' Circuit Range/Performance issue (P255F) in a Ford?

- Start by checking and refilling refrigerant levels, inspecting the compressor, repairing any damaged wiring or connectors, and resetting the trouble code after making necessary repairs.

6. Is it safe to continue driving my Ford with the OBDII code P255F related to A/C Request 'A' Circuit Range/Performance?

- It is not recommended to drive the vehicle for an extended period with this issue, as it can lead to further damage to the A/C system components.

7. Can a DIY enthusiast fix the A/C Request 'A' Circuit Range/Performance trouble code (P255F) in a Ford?

- Depending on the root cause, some DIY repairs such as checking and refilling refrigerant levels or inspecting wiring connections may be possible, but complex issues may require professional diagnosis and repair.

8. How much can I expect to pay for repairing the OBDII code P255F related to A/C Request 'A' Circuit Range/Performance in a Ford?

- The cost of repairs can vary significantly based on the exact cause of the issue, ranging from a simple fix like refrigerant refilling to more extensive repairs involving compressor replacement or wiring repairs.

9. Will resetting the trouble code resolve the A/C Request 'A' Circuit Range/Performance issue (P255F) in my Ford?

- Resetting the trouble code may clear the warning temporarily, but if the underlying issue such as a faulty compressor or wiring problem persists, the code is likely to reappear until the problem is fully addressed.

10. How can I prevent the recurrence of the OBDII code P255F related to A/C Request 'A' Circuit Range/Performance in my Ford?

- Regular maintenance of the A/C system, checking refrigerant levels, addressing any wiring issues promptly, and ensuring proper functioning of the A/C compressor can help prevent the reoccurrence of this trouble code.