I went out to start car other night and will not start cranks fine, just no start. Runs perfect and no problems before this. Pulled in garage, and fuel pump is not coming on at all. I can give power and it will run so something not give power. Fuel pump relay is MIA, not where alldata says and not where everyone else tells me. Pulled trouble code of 17 which states "Data exchange malfunction between individual control modules" whats this mean.

thanks for any help