I have a 2003 FLHPI with 63K. This morning went for a ride and stopped after about 25 minutes. When I restarted the bike the speedo seemed way off. When I got to a stop it was still reading 10 mph! I got back home and with the bike and ignition off it's still showing about 7 mph and the needle will not go back to zero. Any ideas?
I tried the 2003 diagnostic directions with the jumper and got no results. I tried the reset switch while turning on the ignition and got into a diagnostic mode, I think. The results were d01 through d10, all were clear the last one was PP0. No clue what that was.
One thing that can throw the speedo off is the speed sensor. I would remove the sensor from the top of the trans, clean the magnet off and re-install it. Small metal shavings accumulate on the magnet and interfere with the speed signal.
The speedo seemed to just be about 10 over. I will pull and clean the sensor this morning before I go riding. Any possibility my change to a heavier synthetic trams lube a couple days ago had some impact on this?