The switch and harness are available from ford and they are very cheap. No problem to repair. And the recall goes to about 10 years or 100k. You could also have trouble at the fuse panel. Look for the two big red wires in a connector by themselves on the interior fuse panel. Unplug it and look for signs of excessive heat. We've been replacing the panel and repairing the wiring under the recall for the switch - it's all the same ciruit.
