Under Hood Fuse And Relay Box Diagram (1997-1998 F150, F250, Expedition)

Location and descriptions of the fuses and relays of the under-hood fuse box for 1997-1998 Ford F150, F250 and Expedition.

The under-hood fuse/relay box is known as the Power Distribution Center in the Ford service/repair literature.

NOTE: You can find the fuse/relay diagram for the under-dash fuse box here: Under Dash Fuse and Relay Box Diagram (1997-1998 F150, F250, Expedition).

1997-1998 Ford F150, F250, Expedition (Power Distribution Center)
# Amps Fuse Name/Description
1 20 Amps
  1. Trailer Tow Running Lamp Relay
  2. Trailer Tow Backup Lamp Relay
2 10 Amps
  1. Airbag Diagnostic Monitor
3 15 Amps
  1. AI Unlock Relay
  2. All Lock Relay
  3. Driver Unlock Relay
  4. LH and RH Power Door Lock Switch
4 15 Amps
  1. Rear Air Suspension
5 20 Amps
  1. Horn Relay
6 15 Amps
  1. Radio
  2. Premium Sound Amplifier
  3. CD Changer
7 15 Amps
  1. Main Light Switch
  2. Park Lamp Relay
8 30 Amps
  1. Main Light Switch
  2. Headlamp Relay
  3. Multi-Function Switch
9 15 Amps
  1. Daytime Running Lamps (DRL) Module
  2. Fog Lamp Relay
10 25 Amps
  1. Auxiliary Power Socket
11 --
  1. NOT USED
12 --
  1. NOT USED
13 --
  1. NOT USED
14 60 Amps
  1. 4 Wheel ABS Module
15 50 Amps
  1. Rear Air Suspension Compressor
16 40 Amps
  1. Trailer Tow Battery Charge Relay
  2. Engine Fuse Module (Fuse 2)
17 30 Amps
  1. Shift On The Fly Relay
  2. Transfer Case Shift Relay
18 30 Amps
  1. Power Seat Control Switch
19 20 Amps
  1. Fuel Pump Relay
20 50 Amps
  1. Ignition Switch
21 50 Amps
  1. Ignition Switch
22 50 Amps
  1. Junction Box Fuse/Relay Panel Battery Feed
23 40 Amps
  1. Blower Relay
24 30 Amps
  1. EEC Power Relay
  2. Engine Fuse Module (Fuse 1)
25 30 Amps
  1. Under Dash Fuse/Relay Box
  2. Acc Delay Relay
26 --
  1. NOT USED
27 --
  1. NOT USED
28 30 Amps
  1. Trailer Electronic Brake Controller
29 --
  1. NOT USED
Under Hood Fuse And Relay Box Diagram (1997-1998 F150, F250, Expedition)

More 4.6L, 5.4L Ford Diagnostic Tutorials

There are quite a few tutorials for the 4.6L and 5.4L equipped Ford F150, F250 pick-ups and Expedition SUV. You can check them out in this index:

  1. Ford 4.6L, 5.4L Index of Articles.

Here's a small sample of the tutorials you'll find in the index:

  1. How To Clean The Ford MAF Sensor (Ford 4.2L, 4.6L, 5.4L).
  2. How To Test The Fuel Injectors (1997-2002 4.6L F150).
  3. How To Test The Ford EGR Valve EGR Vacuum Solenoid, DPFE Sensor.
  4. How To Test The Ford MAF Sensor (4.2L, 4.6L, 5.4L).
  5. How To Test The 4.6L, 5.4L Ford Throttle Position Sensor (TPS).
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