P0231 Ford - f350 7.3

Question

i have a2002 f350 superduty 7.3 i am getting an error code P0231 and am not getting power to the fuel pump or the fuel shutoff switch any ideas what may cause this

Answer 1

P0231 Fuel pump monitor secondary circuit

You need the fuel pump relay, There is 2 possible location that Ford listed the fuel pump relay. It may be part of the CJB (central junction box) , that one possible area, the other is behind the radio, where you remove the radio and install a fuel pump relay.

with radio removed

with cover removed