Avalon AC Not Cooling

I've got a 2021 Toyota Avalon with a gasoline engine and 72846 kilometers on it. The A/C system doesn't switch on, so it's no longer cooling the cabin. There's an error stored, but I don't have the code right now. Could undervoltage be the problem?

4 comment(s)

That's a tricky one! I had a similar issue with my 2018 Honda Civic. Same symptoms – A/C suddenly stopped blowing cold, and the error memory was flagging something. Have you checked the A/C relay switch? It's a cheap part, and sometimes that's all it takes to fix it.

Thanks for the quick response. Can you give me more details on the A/C relay switch? Where is it located and how do I check or replace it?

Happy to help. I am no expert, but the A/C relay switch should be in the main fuse box, usually under the hood. Check your owner's manual for the exact location. If it's faulty, replacing it is easy. However, since you also have an error code, I would suggest a workshop appointment. It could also be the pressure sensor or even the A/C compressor itself.

Thanks for the guidance. I scheduled an appointment with a service center. They found a bad relay switch in the HVAC system, and replacing it fixed the problem. It cost 240€. Thanks again for pointing me in the right direction.

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