There are two Subaru dealers in Chile. The one where I bought the car said that they had never encountered the issue before, and they don't know how to fix it. So this morning I went to Santiago, and they plugged what looked like a computer onto the car. I could see that they were turning the wheels. When he was done I asked to speak to the mechanic, and he said that his boss would speak to me.
His boss said that they couldn't align the wheels though they tried multiple times. That was true, I saw it. Then he said that the problem was the clock spring; so I replied:how can that be? they installed a new clockspring on Thursday; the horn didn't used to work, and now it works with the new clockspring. The problem with the lights on the dashboard started when they diagnosed the problem and took the steering wheel apart, before the horn issue was repaired.
There is a sequence to the problems: first the horn stopped working, and I took it to the mechanic to repair it. He told me it was the clock spring, and he returned the car to me with the two warning lights on the dashboard for the VDCS and the parking light. I bought the clock spring part, and when it was installed the horn worked, but the warning lights remained.
The boss of the mechanics replied that the sensor and the clockspring are tied together, which is true, and that the scanner used to diagnose the problem could say that the problem was the clockspring when it was the sensor all along, because they are two parts are intimately tied. (Explative deleted) He was trying to come up with an answer when I challenged his diagnosis. Maybe there is truth to what he said, but I don't trust the method he used to diagnose the problem, because it just came up from the top of his head.
Even though I have little confidence in the diagnosis, it is the only possible explanation given thus far. My mechanic which does not belong to the dealer said the problem was the sensor too. 1LuckyTexan said that it had to be the alignment that was triggering the warning light as well.
The sensor in Chile is US$895.08 installed. That's a lot of money for a 2012 car and a solution that might not even work. I checked EJC Performance, and they don't have the sensor, part #27549AL000, but they have one for the Legacy which costs US$120. Subaru in the US has the new part for US$284.62. Any new ideas before I order the part?