Is there a reset button on trucks main computer? I know on my 92 240sx there was a screw you turned and it reset it to get rid of check engine lights etc.

 

No reset button. Unhook the neg battery cable and wait 10 min.
Good luck Frank

 

If you have a check engine light you should pull the codes.. it's trying to tell you something isn't right.

 

I don't have a check engine light I Have a rear abs light. I have replaced my Rabs valve my rear abs speed sensor and it still has not gone away. So it takes 10 minutes of it being unplugged to reset it?

 

that won't fix the rabs problem.

do an advanced search for many rabs posts and solutions.

you do have a manual, i hope.

i suggest getting the ford service manual or at least the haynes and chiltons.

 

Yep, RABS is independent from the engine computer. It also resets each time the key is turned off, so if the light is still on, the fault condition is still active -- disconnecting the battery will not help. Have you checked the wiring connection at the float switch on the master cylinder? I had a bad connection there that caused the RABS light to stay on.