hey everybody i've got a 2001 ford 3/4 ton. on my way home from work i fueled up and on my way out of town my speedo quit working my abs light came on and shotly after my OD light started flashing.So i checked the codes with my diablo sport and it had a p0500 code. I went to napa changed the rear speed sensor didn't fix the problem. I did a continuity test on the rear wiring harness all good there. so my next guess is in the input output turbine sensors the tuner reads rpms on both of them. i went to a local shop and we put a scanner on my truck and we couldn't communicate with the abs module.So i checked for power on pin 14 and i had power there. so i changed the module.well that didn't do anything still have no speedo and the abs and od light are still on.anybody have any ideas.
