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

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

The under-dash fuse/relay box is commonly referred to as the Junction Box Fuse/Relay Panel in the Ford repair service literature.

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

1997-1998 Ford F150, F250, Expedition (Junction Box Fuse/Relay Panel)
#	Amps	Fuse Name/Description
1	15 Amps	Flasher Relay
2	5 Amps	Instrument Cluster
3	25 Amps	Cigar Lighter
4	5 Amps	Park Lamp Relay Headlamp Relay Autolamp Module Remote Anti-Theft Personality (RAP) Module Power Mirror Switch
5	15 Amps	Transmission Range (RT) Switch (A/T) Backup Lamp Switch (M/T) Daytime Running Lamps (DRL) Module Speed Control Servo/Amplifier Assembly Heater-A/C Control Assembly Blend Door Actuator
6	5 Amps	Shift Lock Actuator Generic Electronic Module (GEM) Rear Air Suspension Module
7	--	NOT USED
8	5 Amps	Radio Main Light Switch Remote Anti-Theft Personality (RAP) Module
9	--	NOT USED
10	--	NOT USED
11	30 Amps	Washer Pump Relay Wiper Run/Park Relay Wiper HI/LO Relay Windshield Wiper Motor
12	5 Amps	Data Link Connector (DLC)
13	15 Amps	Rear Anti-Lock Brake System (RABS) Module Brake ON/OFF (BOO) Switch Brake Pressure Switch
14	15 Amps	Battery Saver Relay Interior Lamp Relay
15	5 Amps	Generic Electronic Module (GEM)
16	20 Amps	Instrument Cluster (W/O DRL) Daytime Running Lamps (DRL) Module Hi-Beam Headlamps (thru' Multi-Function Switch)
17	--	NOT USED
18	5 Amps	Park Lamp Relay Trailer Electronic Brake Controller Main Light Switch Trailer Tow Run Relay Front Park/Turn Lamps License Lamps Stop/Park/Turn Lamps Tail/Side Marker Lamps
19	10 Amps	Instrument Cluster Air Bag Diagnostic Monitor
20	5 Amps	Powertrain Control Module (PCM) Generic Electronic Control Module (GEM)/Central Timer Module (CTM)
21	15 Amps	Clutch Pedal Position (CPP) Switch (w/o RAP) Starter Inhibit Relay (w/ RAP)
22	10 Amps	Air Bad Diagnostic Monitor Passive De-Activation (PAD) Module
23	10 Amps	Trailer Tow Battery Charge Relay 4x4 Hub Solenoid 4x2 Hub Solenoid Flasher Relay Shift On The Fly Relay
24	10 Amps	Blower Relay
25	5 Amps	4 Wheel Anti-Lock Brake System Module 4WABS Relay
26	10 Amps	Daytime Running Lamps (DRL) Module Right Headlamp
27	5 Amps	Main Light Switch Fog Lamp Relay
28	10 Amps	Left Headlamp
29	5 Amps	Autolamp Module Instrument Cluster Transmission Control Switch (TCS) Brake Warning Resistor/Diode Assembly (W/RABS)
30	30 Amps	Radio Noise Capacitor Ignition Coil PCM Power Diode
31	--	NOT USED

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:

• Ford 4.6L, 5.4L Index Of Articles.

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

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