Fuel Injection Control Module (FICM) Relay
03-10 6.0L Ford Powerstroke
FICM Relays are often overlooked, but provide the critical transfer of amperage from your charging system to your FICM. If your truck has more than 100,000 miles consider this as preventive maintenance. It may save you from a dead FICM. This relay is located under the hood on the driver’s side fender well. It is in the Fuse Panel adjacent to the firewall.