Have Toyota Questions? Ask a Mechanic for Answers ASAP
Thank you for trusting us with your questions. Your compressor has a speed sensor that the computer uses to monitor for a compressor issue. When that light flashes, the computer automatically shuts off the compressor clutch and the flashing light is there to alert you of an issue. There are a few possible causes for this to be happening. A failed compressor could cause it. An electrical problem with a harness or component, or the A/C amplifier (computer) could have a malfunction. The first step in diagnosing this is to check the compressor. With the engine off, you should be able to turn the front of the compressor by hand and it should turn with minimal resistance.