Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello and thank you for your question,The expert you have requested is not online at the moment so I can help you with your question, sorry for the delay.Kevin, Your shopkey is correct, the fuel pump relay is located in the CJB but it is incorporated into it and not service separate, if you suspect the relay is the cause the CJB has to be replaced as an assembly.
The PCM relay does not supply power to the fuel pump relay, the fuel pump relay receives its ground from the PCM.
See the wiring diagram in the link below for reference.Copy and paste the link to your browser to open the link.https://dl.dropboxusercontent.com/u/104923897/FP%20Sept%205.pdfWhen it does not want to start , check and see if your getting the cranking ground signal from the PCM on pin #10 at the CJB and power out of the CJB on Pin 22 to the pump.