AutoCodes – Dodge – P2519 Dodge

P2519 Dodge 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 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: P2519 Dodge indicates A/C Request 'A' Circuit.
Common causes: Common causes include Low refrigerant, Too much refrigerant, Faulty Low Side Pressure Sensor.
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 3,024

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 Jan 17, 2019

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

What does this mean?

What are the Possible Causes of the DTC P2519 Dodge?

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 Dodge?

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 Dodge 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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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 Dodge Code

What does the OBDII code P2519 mean for a Dodge vehicle?

P2519 indicates an issue with the A/C Request 'A' Circuit, which is responsible for communicating the air conditioning request signal to the vehicle's control module.

What are common symptoms of the P2519 code in a Dodge?

Symptoms may include the A/C not working, reduced cooling performance, or a noticeable lack of airflow when the A/C is activated.

What causes the P2519 code to activate?

Common causes include a malfunctioning A/C request switch, damaged wiring or connectors in the circuit, or a problem with the vehicle's control module.

Can a P2519 code affect other systems in the vehicle?

Yes, the code can impact engine performance, as the A/C system influences idle speeds and load calculations managed by the control module.

How can I diagnose the P2519 code in my Dodge?

Start by inspecting the wiring and connectors for damage or corrosion. Then check the A/C request switch for proper operation using a multimeter or diagnostic tool.

Is the P2519 code safe to drive with?

While the vehicle may still be drivable, avoiding prolonged use is recommended as it may lead to further electrical issues or discomfort due to a non-functional A/C system.

How do I fix the P2519 code on a Dodge?

Repairs may involve replacing the A/C request switch, repairing damaged wiring or connectors, or updating/replacing the control module if necessary.

Will clearing the P2519 code solve the problem?

Clearing the code may temporarily remove it, but if the underlying issue isnâ€™t resolved, the code will likely reappear.

Can a failing A/C request switch trigger the P2519 code?

Yes, a failing or defective A/C request switch is one of the most common causes of this error code.

How much does it typically cost to fix a P2519 code in a Dodge?

Repair costs vary based on the issue but may range from $50 to $200 for minor wiring repairs, while replacing modules or switches could cost $300 or more.