I've got the same problem now. Yesterday, while driving home in cool temps (70s) I hit a bump on the road. Right afterwards the red light started blinking slowly.
The engine temp is running at its normal position. I drove home and check the coolant when the engine was cool, and it was full.
This morning I started the car and within 1-2 minutes the red light started blinking slowly. The temp needle was still cold. As I drove to work the needle came up to normal, and the light kept blinking.
This summer I did hear the engine compartment blower running once, so I know it worked then. I don't think it is running now.
Maybe my engine compartment temp sensor has "slipped" like the poster above. Can anyone post a picture of this sensor?
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