Sharing an experience: Last fall I had a wire catch fire under the dash after turning on the ignition switch (burned the old fabric housing off was the only damage). The culprit was the wiper control arm that had fallen off and landed / wedged in the perfect spot to cause a short; it was laying on top of an original wire (the one burning) and the rod was connecting the positive post of the ignition switch and was grounding to the metal dash. In the photo you can see etching on the rod. I have since wrapped the rod in electrical tape in case it falls off again. Roger
