My ABS light on my '00 F350 Diesel came on the other day while I was towing my camper. I did not notice any ill effects and after continuing on to my hunting trip and returning the 450 miles to home still no problems but the light is still on. and every once in a while my OD on/off light will flash? Any ideas if a code reader is recommended Which one is the best??

 

you wil probably need to replace the rear speed sensor on the rear end for the abs light, the od light is flashing because there is a problem in the trans you should get it looked at