AutoCodes – Ford – P2519 Ford

P2519 Ford Code - A/C Request 'A' Circuit

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: P2519 Ford indicates A/C Request 'A' Circuit.
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.

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Code Popularity 1,845

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 17, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2519 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 P2519 Ford - A/C Request 'A' Circuit - AutoCodes.com — P2519 Ford Code - A/C Request 'A' Circuit

What does this mean?

What are the Possible Causes of the DTC P2519 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 P2519 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 P2519 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.

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Need more information on how to fix the P2519 Ford code? Get Access to Factory Service Manuals

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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 P2519 Ford Code

1. What are the common symptoms of OBDII code P2519 in a Ford vehicle?

- Common symptoms include the air conditioning system not functioning properly, the A/C compressor not engaging, and the A/C not blowing cold air.

2. What does the A/C Request 'A' Circuit refer to in a Ford vehicle with code P2519?

- The A/C Request 'A' Circuit is a specific part of the vehicle's air conditioning system that is experiencing a malfunction, leading to the triggering of code P2519.

3. What are the possible causes of OBDII code P2519 in a Ford related to the A/C Request 'A' Circuit?

- Possible causes include a faulty A/C pressure sensor, damaged wiring or connectors in the A/C system, or a malfunctioning A/C control module.

4. How can I diagnose OBDII code P2519 in my Ford vehicle?

- Diagnosing code P2519 involves using a scan tool to read the code, checking the A/C system components for any visible damage, and testing the A/C pressure sensor for proper function.

5. Can I continue driving my Ford with OBDII code P2519 present?

- It is not recommended to drive the vehicle with code P2519 active, as it may lead to further damage to the A/C system and potentially affect other vehicle systems.

6. How can I repair OBDII code P2519 related to the A/C Request 'A' Circuit in my Ford?

- Repairing code P2519 may involve replacing the faulty A/C pressure sensor, repairing damaged wiring or connectors, or resetting the A/C control module.

7. Is it safe to attempt repairing OBDII code P2519 in my Ford by myself?

- It is recommended to have the necessary automotive knowledge and experience before attempting to repair code P2519, as working with the A/C system requires precision and care.

8. Will resetting the OBDII code P2519 in my Ford make the issue go away permanently?

- Resetting the code may temporarily clear the warning, but if the underlying issue with the A/C Request 'A' Circuit is not addressed, the code is likely to reappear.

9. How much does it typically cost to repair OBDII code P2519 in a Ford at a professional mechanic or dealership?

- The cost of repairing code P2519 can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

10. Can a faulty A/C Request 'A' Circuit impact the overall performance of my Ford vehicle?

- Yes, a malfunctioning A/C Request 'A' Circuit can affect the performance of the A/C system, leading to discomfort while driving and potentially impacting other vehicle systems that rely on proper A/C function.