Under-Hood Fuse And Relay Box Locations And Descriptions (1992, 1993 Ford F150, F250, and F350 -Gasoline Engine Only)

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:

  1. Under-Hood Fuse/Relay Box (1994-1995 F150, F250, F350).
  2. Under-Hood Fuse/Relay Box (1996 F150, F250, F350).
Fuse Locations And Descriptions
# Amps Fuse Name/Description
A 20 Amps
  1. Hi/Lo Beam Select Switch
  2. Daytime Running Lamps (Canada Only)
B 15 Amps
  1. Fog Lamp Relay (if equipped otherwise empty)
C 20 Amps
  1. Horn Relay
D 25 Amps
  1. Trailer Marker Lamps Relay
  2. Trailer Backup Lamps Relay
E 15 Amps
  1. Heated Oxygen Sensor
  2. Trailer Battery Charge Relay
  3. Cruise Control Servo/Amplifier Assembly
  4. Backup Lamp Switch (Manual Trans.)
  5. Backup Lamp Park/Neutral Switch (Automatic Trans.)
  6. Daytime Running Lamps (Canada Only)
F 5 Amps
  1. Trailer Right Stop/Turn Lamps
G 5 Amps
  1. Trailer Left Stop/Turn Lamps
H --
  1. NOT USED
I 20 Amps
  1. PCM Power Relay
  2. Powertrain Control Module (PCM) Pin 1
J 20 Amps
  1. Ignition Switch (Pin B4)
  2. Fuse 15 (I/P Fuse Box)
  3. Fuse 18 (I/P Fuse Box)
  4. Starter Motor Relay
K --
  1. NOT USED
L 50 Amps
  1. Fuse 9 (I/P Fuse Box)
  2. Fuse 13 (I/P Fuse Box)
M --
  1. NOT USED
N 50 Amps
  1. Ignition Switch Pin B2
  2. Ignition Switch Pin B3
  3. Fuse 1 (I/P Fuse Box)
  4. Fuse 7 (I/P Fuse Box)
  5. Fuse E (Under-Hood Fuse/Relay Box)
O 20 Amps
  1. Fuel Pump Relay
P 50 Amps
  1. Ignition Switch Pin B1
  2. Ignition Switch Pin B5
  3. Circuit Breaker 2 (I/P Fuse Box)
  4. Fuse 6 (I/P Fuse Box)
  5. Fuse 11 (I/P Fuse Box)
  6. Circuit Breaker 14 (I/P Fuse Box)
  7. Fuse 17 (I/P Fuse Box)
  8. Fuse U (Under-Hood Fuse/Relay Box)
Q 30 Amps
  1. Trailer Battery Charge Relay
R 40 Amps
  1. Main Light Switch (Headlamps)
S 50 Amps
  1. Fuse 4 (I/P Fuse Box)
  2. Fuse 8 (I/P Fuse Box)
  3. Fuse 16 (I/P Fuse Box)
  4. Circuit Breaker 12 (I/P Fuse Box)
T 30 Amps
  1. Trailer Electronic Brake Control Unit (if equipped)
U 20 Amps
  1. Ignition Control Module (ICM)
  2. Ignition Coil
  3. Radio Capacitor
  4. PIP Sensor (Distibutor)
  5. PCM Power Relay
Under-Hood Fuse And Relay Box Locations And Descriptions (1992, 1993 Ford F150, F250, and F350 -Gasoline Engine Only)
Relay Locations And Descriptions
# Relay Name/Description
1
  1. PCM Power Relay
2
  1. Fuel Pump Relay
3
  1. Horn Relay
4
  1. Trailer Marker Lamps Relay (if equipped)
5
  1. 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:

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

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

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