P2561 Air conditioning: requested the engine light
P2561 means: Air conditioning: requested the engine light. The computer controls the air conditioning compressor and monitors refrigerant pressure. OK to drive, but have it checked soon. The repair usually costs about €60–600 in Estonia. The most common cause: low refrigerant (leak). Other possible causes: faulty pressure sensor, compressor relay or clutch.
What it means
The computer controls the air conditioning compressor and monitors refrigerant pressure. The A/C may not cool, but this doesn't harm the engine.
What you may notice
- A/C doesn't cool
- Compressor doesn't engage
- Engine light may be on
What could be wrong
- 1Low refrigerant (leak)
- 2Faulty pressure sensor
- 3Compressor relay or clutch
- 4Wire or connector
Repair difficulty: Moderate
What you can check yourself
Listen for the compressor clicking on when you switch on the A/C. If it hasn't been serviced for years, the refrigerant may be low. You can check the simple things yourself, but the repair is best done in a workshop.
How we fix it
- We measure refrigerant pressure and look for leaks
- We check the sensor, relay and clutch
- We recharge the system or replace the faulty part
Standard SAE description: A/C Control Module Requested MIL Illumination