I was using the trip odometer to measure how many miles I had on this rebuilt motor. Things were going well. I had the dash out to fix the headlight switch and I had it out again to replace the dash light bulbs.

Somewhere during this last week the odometer and trip odometer have stop working. I have had 60 miles on this motor for the past 120 miles. The Odometer was rolling over from 120099 to 120100 when it seems to have gotten stuck. The speedometer is still working. Since this is a 95 Mustang, I believe this is all electronic.

So how did I break it? More importantly, how do I fix it?