Under-Hood Fuse/Relay Box (1992-1993 Ford F150, F250, F350)

Locations and descriptions of the fuses and relays of the under-hood fuse/relay box for the 1992-1993 Ford F150, F250 and F350 (gasoline engine only).

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

You can find the under-hood fuse/relay box chart for the 1994-1996 F-Series pickups here:

• Under-Hood Fuse/Relay Box (1994-1995 F150, F250, F350).
• Under-Hood Fuse/Relay Box (1996 F150, F250, F350).

Fuse Locations And Descriptions
#	Amps	Fuse Name/Description
A	20 Amps	Hi/Lo Beam Select Switch Daytime Running Lamps (Canada Only)
B	15 Amps	Fog Lamp Relay (if equipped otherwise empty)
C	20 Amps	Horn Relay
D	25 Amps	Trailer Marker Lamps Relay Trailer Backup Lamps Relay
E	15 Amps	Heated Oxygen Sensor Trailer Battery Charge Relay Cruise Control Servo/Amplifier Assembly Backup Lamp Switch (Manual Trans.) Backup Lamp Park/Neutral Switch (Automatic Trans.) Daytime Running Lamps (Canada Only)
F	5 Amps	Trailer Right Stop/Turn Lamps
G	5 Amps	Trailer Left Stop/Turn Lamps
H	--	NOT USED
I	20 Amps	PCM Power Relay Powertrain Control Module (PCM) Pin 1
J	20 Amps	Ignition Switch (Pin B4) Fuse 15 (I/P Fuse Box) Fuse 18 (I/P Fuse Box) Starter Motor Relay
K	--	NOT USED
L	50 Amps	Fuse 9 (I/P Fuse Box) Fuse 13 (I/P Fuse Box)
M	--	NOT USED
N	50 Amps	Ignition Switch Pin B2 Ignition Switch Pin B3 Fuse 1 (I/P Fuse Box) Fuse 7 (I/P Fuse Box) Fuse E (Under-Hood Fuse/Relay Box)
O	20 Amps	Fuel Pump Relay
P	50 Amps	Ignition Switch Pin B1 Ignition Switch Pin B5 Circuit Breaker 2 (I/P Fuse Box) Fuse 6 (I/P Fuse Box) Fuse 11 (I/P Fuse Box) Circuit Breaker 14 (I/P Fuse Box) Fuse 17 (I/P Fuse Box) Fuse U (Under-Hood Fuse/Relay Box)
Q	30 Amps	Trailer Battery Charge Relay
R	40 Amps	Main Light Switch (Headlamps)
S	50 Amps	Fuse 4 (I/P Fuse Box) Fuse 8 (I/P Fuse Box) Fuse 16 (I/P Fuse Box) Circuit Breaker 12 (I/P Fuse Box)
T	30 Amps	Trailer Electronic Brake Control Unit (if equipped)
U	20 Amps	Ignition Control Module (ICM) Ignition Coil Radio Capacitor PIP Sensor (Distributor) PCM Power Relay

Relay Locations And Descriptions
#	Relay Name/Description
1	PCM Power Relay
2	Fuel Pump Relay
3	Horn Relay
4	Trailer Marker Lamps Relay (if equipped)
5	Fog Lamp Relay (if equipped)

More Ford F-Series Pickup Diagnostic Tutorials

There are quite a few tutorials for the 4.9L, 5.0L, and 5.8L equipped Ford F150, F250, F350 pick-ups. You can find them in this index:

• Ford 4.9L, 5.0L, 5.8L Index of Articles.

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

• How To Test The Throttle Position Sensor (Ford 5.0L, 5.8L).
• How To Test The Ford Mass Air Flow (MAF) Sensor.
• How To Test The Ford Ignition Control Module.
• Ford Ignition System Circuit Diagram (1992-1993 4.9L, 5.0L, And 5.8L).