P2519 Fault Code

A/C Request A Circuit

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2519 fault code refers to an issue related to the A/C Request A Circuit. This code indicates that there is a problem with the communication between the vehicle's A/C control system and other components, which can affect the operation of the air conditioning system.

What are the symptoms of the P2519 code?

Symptoms of a P2519 fault code may include:

• A/C not functioning properly
• Inconsistent cabin temperature
• A/C compressor not engaging
• Dashboard warning lights illuminated

What causes the P2519 code?

Common causes of the P2519 fault code include:

• Faulty A/C control module
• Malfunctioning temperature sensors
• Damaged wiring or connectors in the A/C circuit
• Low refrigerant levels
• Issues with the HVAC control panel

How to fix P2519?

To resolve the P2519 fault code, follow these steps:

1. Inspect all wiring and connectors in the A/C circuit for damage or corrosion.
2. Check the A/C control module for proper operation and replace if necessary.
3. Test the temperature sensors and replace if they are faulty.
4. Ensure that the refrigerant levels are correct and recharge if needed.
5. Clear the fault code and test the A/C system to verify that the issue is resolved.