Took the coach out for a drive today (before the monsoons set in) and to get a brake tag. The speedometer started out like it did last time but after a few miles it went to full scale and now it stays there. Looking at this diagram
http://www.egauges.com/pdf/vdo/0-511-011-348.pdf
I have the 5 wire gauge. But there is no wire connected to the red on the harness going to the sender (there is a blade connector where one should be connected?). I looked but can't find a wire that is not connected that might be it. But I am getting a speed reading to my VMSpc that corresponds to my gps.
Any thoughts? Could someone check and see if they have all 5 wires connected to the back of their speedo?
Thanks.