For the 1996-1997 model year there is an end user procedure documented in the Ford service manual to re-program PATS. The procedure takes 45 minutes to perform and each step must be performed exactly. The procedure is not in a format that can be posted. If interested in getting a copy of the service manual & wiring diagrams for yourself I may be able to help. PM if interested. I personally do not recommend PCM replacement as a trouble shooting tool. Likely to create as many problems as it solves. At the minimum perform a visual inspection of the PC board looking for burnt components. The wiring diagrams will also help should you decide to "ring out" the signal return lines. Includes connector pin out with wire colors. If this is within your skill set I highly recommend. It could save the work of PCM replacement only to find the new PCM has the same problem. At the very least, this could offer greater confidence that a PCM replacement is worth the effort.