P2519
A/C Request A Circuit
P2519 is an OBD-II diagnostic trouble code meaning: A/C Request A Circuit. Common causes: open or short circuit in the air conditioner request circuit, faulty a/c relay. Estimated repair cost: $6–33.
Symptoms
- Air conditioner won't turn on
- Unstable operation of the air conditioner
- Check Engine light comes on
- Reduced cooling efficiency
Causes
- Open or short circuit in the air conditioner request circuit
- Faulty A/C relay
- Problems with the climate control unit
- Engine control module (ECM) malfunction
How to Fix
- Check the integrity of the air conditioner request circuit
- Check the air conditioning relay and replace if necessary
- Diagnose the climate control control unit
- Check the operation of the engine control module (ECM)
Related codes
Error P2519 by Vehicle Brand
FAQ
What does the P2519 code mean?
P2519 is an OBD-II diagnostic trouble code that indicates: A/C Request A Circuit
What causes a P2519 error code?
The most common causes of P2519 include: Open or short circuit in the air conditioner request circuit; Faulty A/C relay; Problems with the climate control unit; Engine control module (ECM) malfunction.
How do I fix a P2519 diagnostic trouble code?
To fix P2519: Check the integrity of the air conditioner request circuit. Check the air conditioning relay and replace if necessary. Diagnose the climate control control unit. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2519?
Yes, but get it checked soon
How much does it cost to fix P2519?
The estimated repair cost for P2519 is $6–33. Actual cost depends on your vehicle, location, and labor rates.
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