went to autozone today to get codes read... they plugged in scanner, and the scanner couldnt read car..... went to advanced same thing happend... How come?.. about a month ago i had them red and it worked fine.. the only thing i changed on the car was i had a radio installed.. any ideas?
If its the same as all the other Ford cars I worked on, the OBDII connector runs off the same power supply as the cigg lighter/acc socket fuse. Check that one.