OEM FICM Relay
FICM relays are an oft-neglected afterthought, but provide the critical transfer of amperage from your charging system to the FICM. If your truck has more than 100,000 miles on it, consider a new relay. It may well save you from a killed FICM!
This relay is located under the hood on the drivers side fender well in the fuse panel next to the firewall.
To read about a no-start caused by a bad relay and see related discussion, check out this thread on ford-trucks.com! For another case where someone thought that surely the aftermarket option was 'just as good', but found out otherwise, check this other ford-trucks.com thread out.
Engineering part # (stamped on top of relay): F80Z-14B192-AA
Ford Part #: F8OZ-14N089-AA
This RELAY is a genuine OEM Ford part #F8OZ-14N089-AA and carries a factory warranty.
FORD OEM PARTS
Ford Motor Company designs and produces OEM parts that meet the same specifications and tolerances as the parts on the vehicle when it was manufactured. These parts meet stringent requirements for fit, finish, structural integrity, corrosion protection and dent resistance. They are the only parts proven during vehicle development to deliver the intended level of protection as a whole system.