2002 Dodge Ram Throttle quits

When that light comes on its always a big problem unless your the mechanic that fixes it for a living. It always seems to cost more than the truck is worth. My suggestion is to get a TPS sensor then reset the computer by taking the positive and neg battery cables off and touching them together for 20 seconds, put back on battery turn the key on for 30 seconds or so, turn back off for 30 seconds then start the truck. Im not sure at all if this will work, but if I were you I would give it a try. If it all fails go to a junk yard, its alot less expensive to get a pcm, make sure you get the numbers off of yours they got to match up. Happy hunting(post your progress)