P2520
A/C Request A Circuit Low
P2520 is an OBD-II diagnostic trouble code meaning: A/C Request A Circuit Low. Common causes: open or short circuit in the circuit, air conditioner switch malfunction. Estimated repair cost: $6–56.
Symptoms
- Air conditioner won't turn on
- Intermittent operation of the air conditioner
- Check Engine Light Is On
- Reduced cooling efficiency
- Increased fuel consumption
Causes
- Open or short circuit in the circuit
- Air conditioner switch malfunction
- Air conditioning relay problems
- Control unit malfunction
- Contact corrosion
How to Fix
- Check the integrity of the wiring in the request circuit
- Check the operation of the air conditioner switch button
- Diagnose the air conditioner relay
- Check contacts for corrosion
- Scan the control unit for errors
Related codes
Error P2520 by Vehicle Brand
FAQ
What does the P2520 code mean?
P2520 is an OBD-II diagnostic trouble code that indicates: A/C Request A Circuit Low
What causes a P2520 error code?
The most common causes of P2520 include: Open or short circuit in the circuit; Air conditioner switch malfunction; Air conditioning relay problems; Control unit malfunction.
How do I fix a P2520 diagnostic trouble code?
To fix P2520: Check the integrity of the wiring in the request circuit. Check the operation of the air conditioner switch button. Diagnose the air conditioner relay. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2520?
Yes, but get it checked soon
How much does it cost to fix P2520?
The estimated repair cost for P2520 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat