Hello: My F150 at times will start and run and at times will not start at all, only engine crank. The "theft" light blinks out error code 16 when this nasty thing happens, which means that communication between PATS and PCM is no good (faulty wiring). At first I tried tracing out the Tx and Rx wires from the PATS module on the ignition barrel to the PCM, to no avail. There was not a direct connection to it. It seems that the PATS will connect first to the BEM and then the BEM connects to the PCM. Does anyone have a service manual for this particular model? I only need the portion that shows the table for the TILA, PATS, BEM, and PCM connections, including the drawing for the connectors and pinout arrangement. I would like to trace out the wiring so that my F150 can start again. My email address is razirafi2@yahoo.com