what will blow the eccs fuse 1 when trying to start engine, on 2002 Infiniti I35

car shut off and will not start,found eccs fuse 1 blown, replaced fuse and blows as soon as I try to start engine,does not run

Asked by for the 2002 Infiniti I35
Trying to find it on the wiring diagram, only list fuse numbers on the diagram, not eccs.