2004 Ford F-150 fuse box diagram - StartMyCar The 2004 Ford F-150 has 3 different fuse boxes: Passenger compartment fuse panel / power distribution box diagram; Auxiliary relay box (with DRL) diagram; Auxiliary relay box 83 Complaints: 2004 Ford F-150 Electrical System Problems « Read the previous 20 complaints. Currently own a 2004 Ford F150 FX4. The driver side window suddenly fell off the track while driving and into the door, thankfully it didn't shatter. Took it to the dealership, wasn't covered under warranty. It was the window regulator. Cost around $500 to fix it.