Ford Mondeo 2.0 TDDi 2005 - Battery light on, charging fault #Archived Message
Posted by Dave mc gee on January 30, 2009, 6:34 pm
Hi lads, I have this car in today with the battery light on at all times.While driving the speedo is not working and all of the gauges (temp. fuel speedo and rev counter ) all go fully clockwise with the air bag,engine management and battery light on..The voltage is at 14.5 - 18.3 volts and the battery never went flat.I disconnected the 3 pin connector on the altenator,i read in the archives that doing this reverts the smart charge system to a conventional system,and the output drops to 13.2 volts max.I have tested the battery and its ok. I have 2 codes,U1039-standard corporate protocol..invalid or missing data,P0500 vehicle speed sensor. I think it might need an alternator but not 100% sure. Any ideas welcomed, Thanks, Dave.