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In this article, you will find information about the fuses of the Ford F-250 Heavy Duty / F-350 (models 1996 and 1997), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in Ford F-250 / F-350
If electrical parts in your vehicle are not working, the system may have been overloaded and blown a fuse or tripped a circuit breaker. Before you replace or repair any electrical parts, check the appropriate fuses or circuit breakers.
If you need to check a fuse, follow these steps:
- In order to find the fuse panel, you must first remove the cover from the lower edge of the instrument panel. You can do this by pulling on handle to disengage the fasteners.
- On the fuse panel cover, find the number of the fuse you want to check. The diagram on the cover tells you where to locate the fuse on the panel. The underside of the cover also contains a fuse pulling tool in case you need to replace a blown fuse.
- Check the fuse to see if it is blown. Look through the clear side of the fuse to see if the metal wire inside is separated. If it is, the fuse is blown and should be replaced.
Even after you replace a fuse, it may continue to blow if you do not find what caused the overload. If the fuse continues to blow, have your electrical system checked.
Caution!
- Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire.
- Always disconnect the battery before servicing high current fuses.
- Always replace the cover to the Power Distribution Box before reconnecting the battery or refilling fluid reservoirs.
Location of Fuse Boxes
Passenger Compartment Fuse Panel:
Power Distribution Box:
Fuse Box Diagrams
1996
Passenger Compartment Fuses
| № | A | Description |
|---|---|---|
| 1 | 30A | Heater / Air conditioner blower |
| 2 | 30A | Wiper / Washer |
| 3 | 3A | Idle position switch (Diesel) |
| 4 | 15A | Exterior lamps, Instrument illumination, Trailer exterior lamp relay, Waming buzzer/chime module |
| 5 | 10A | Air bag restraint |
| 6 | 15A | Air conditioner clutch, Diesel auxiliary fuel selector, Remote keyless entry |
| 7 | 15A | Turn lamps |
| 8 | 15A | Courtesy / dome/cargo lamps, Electric outside mirrors, Keyless entry, Speedometer, Sun visor mirror illumination, Waming buzzer / chime module |
| 9 | 25A | Powerpoint |
| 10 | 4A | Instrument illumination |
| 11 | 15A | Radio, Radio display dimmer |
| 12 | 20A Circuit Breaker | Electronic shift motor 4-wheel drive, Power door locks, Power driver seat, Power lumbar |
| 13 | 15A | Anti-lock brakes, Brake shift interlock, Electronic engine control, Speed control, Stop / hazard lamps, Stop sense for electronic engine control |
| 14 | 20A Circuit Breaker | Power Windows |
| 15 | 20A | Anti-lock brakes |
| 16 | 15A | Cigarette lighter, Generic Scan Tool |
| 17 | 10A | Diesel indicators, Electronic transmission, Gauges, Tachometer, Waming buzzer / chime module, Waming indicators |
| 18 | 10A | Air bag restraint, Automatic day / night mirror, Brake shift interlock, Electronic shift module 4-wheel drive, Speedometer, Selectable RPM control (Diesel), Speed control (Diesel) |
Power Distribution Box
| № | A | Description |
|---|---|---|
| 1 | 20A | Audio power |
| 2 | (15A) | Fog lamps, 200 Amp alternator (Diesel ambulance only) |
| 3 | 30A | Daytime running lamps (Canada only), Headlamp flash-to-pass, Horn |
| 4 | 25A | Trailer back-up lamps, Trailer running lamps |
| 5 | 15A | Back-up lamps, Daytime running lamp module (DRL) (Canada only), Oxygen sensor heater, Trailer battery charge relay |
| 6 | 10A | Trailer right-hand stop/turn lamp |
| 7 | 10A | Trailer left-hand stop/turn lamp |
| 8 | 30A maxi | Injector driver module |
| 9 | 30A (Gas) 20A (Diesel) | Powertrain control system |
| 10 | 20A maxi | Instrument panei fuses: 15, 18; Starter relay coil |
| 11 | - | Not used |
| 12 | Diode | Powertrain control system relay coil |
| 13 | 50A maxi | Instrument panei fuses: 5, 9, 13 |
| 14 | - | Not used |
| 15 | 50A maxi | Instrument panei fuses: 1, 7; Power distribution box: fuse 5 |
| 16 | 20A maxi | Fuel pump feed (Gas engine) |
| 17 | 50A maxi | Altemator charge lamp, Idle position switch (Diesel), Instrument panei fuses: 2, 6, 11, 14, 17; Power distribution box: fuse 22 |
| 18 | 30A maxi | Trailer battery charge |
| 19 | 40A maxi | Headlamps |
| 20 | 50A maxi | Instrument panei fuses: 4, 8, 12, 16 |
| 21 | 30A maxi | Trailer brake feed |
| 22 | 20A maxi (Gas) 30A (Diesel) | Distributor pickup (Gas engine), Fuel line heater (Diesel), Glow plug controller (Diesel), Ignition coil (Gas engine), Powertrain control system relay coil, Thick film integrated (TFI) module (Gas engine) |
| Relay 1 | Powertrain control system | |
| Relay 2 | Fuel pump (Gas engine), Injector driver module (IDM relay) (Diesel) | |
| Relay 3 | Horn | |
| Relay 4 | Trailer tow lamps |
Additional Fuses
| Circuit Protected | Size | Location |
|---|---|---|
| Headlamps & High Beam Indicator | 22A Circ. Brkr. | Integral with Headlamp Switch |
| Windshield Wiper and Washer Pump | 30A Fuse | Fuse Panei |
| Electric Brakes (Trailer) | 30A Maxi Fuse | Power Distribution Box |
| Trailer Lamps (Relay Feed) | 25A Fuse | Power Distribution Box |
| Altemator, 95 Amp | 12 Ga. Fuse Link | At Starting Motor Relay (Gasoline Engine) |
| Alternator, 130 Amp | (2) 12 Ga. Fuse Links | At Starting Motor Relay (Diesel Engine) |
| Powertrain Control Module | 20A Maxi Fuse | Power Distribution Box |
| Fuel Pump | 20A Maxi Fuse | Power Distribution Box |
| Headlamp Switch | 40A Maxi Fuse | Power Distribution Box |
| Diesel Glow Plugs | (2) 14 Ga. Fuse Links | At Starting Motor Relay |
| Power Windows | 20A C.B. | Fuse Panei |
| Power Door Locks | 20A C.B. | Fuse Panei |
| Hazard Flashers | 15A Fuse | Fuse Panei |
| Trailer Battery Recharge Feed | 30A Maxi Fuse | Power Distribution Box |
1997
Passenger Compartment Fuses
| № | A | Description |
|---|---|---|
| 1 | 30A | Heater / Air conditioner blower |
| 2 | 30A | Wiper / Washer |
| 3 | 3A | Idle position switch (Diesel) |
| 4 | 15A | Exterior lamps, Instrument illumination, Trailer exterior lamp relay, Waming buzzer/chime module |
| 5 | - | Not used |
| 6 | 15A | Air conditioner clutch, Diesel auxiliary fuel selector, Remote keyless entry |
| 7 | 15A | Turn lamps |
| 8 | 15A | Courtesy / dome / cargo lamps, Electric outside mirrors, Keyless entry, Speedometer, Waming buzzer / chime module |
| 9 | 25A | Power point |
| 10 | 4A | Instrument illumination |
| 11 | 15A | Radio, Radio display dimmer |
| 12 | 20A Circuit Breaker | Power door locks, Power driver seat, Power lumbar |
| 13 | 15A | Anti-lock brakes, Brake shift interlock, Electronic engine control, Speed control, Stop / hazard lamps, Stop sense for electronic engine control |
| 14 | 20A Circuit Breaker | Power Windows |
| 15 | 20A | Anti-lock brakes |
| 16 | 15A | Cigarette lighter, Generic Scan Tool |
| 17 | 10A | Diesel indicators, Electronic transmission, Gauges, Tachometer, Wamingbuzzer / chime module, Waming indicators |
| 18 | 10A | Brake shift interlock, Speedometer, Selectable RPM control (Diesel), Speed control (Diesel) |
Power Distribution Box
| № | A | Description |
|---|---|---|
| 1 | 20A | Audio power |
| 2 | 15A | 200 Amp alternator (Diesel ambulance only) |
| 3 | 30A | Daytime running lamps (Canada only), Headlamp flash-to-pass, Horn |
| 4 | 25A | Trailer back-up lamps, Trailer running lamps |
| 5 | 15A | Back-up lamps, Daytime running lamp module (DRL) (Canada only), Oxygen sensor heater, Trailer battery charge relay |
| 6 | 10A | Trailer right-hand stop/turn lamp |
| 7 | 10A | Trailer left-hand stop/turn lamp |
| 8 | 30A maxi | Injector driver module (Diesel) |
| 9 | 30A (Gas) 20A (Diesel) | Powertrain control system |
| 10 | 20A maxi | Instrument panei fuses: 15, 18; Starter relay coil |
| 11 | - | Not used |
| 12 | Diode | Powertrain control system relay coil |
| 13 | 50A maxi | Instrument panei fuses: 5, 9, 13 |
| 14 | - | Not used |
| 15 | 50A maxi | Instrument panei fuses: 1, 7; Power distribution box: fuse 5 |
| 16 | 20A maxi | Fuel pump feed (Gas engine) |
| 17 | 50A maxi | Altemator charge lamp, Idle position switch (Diesel), Instrument panei fuses: 2, 6, 11, 14, 17; Power distribution box: fuse 22 |
| 18 | 30A maxi | Trailer battery charge |
| 19 | 40A maxi | Headlamps |
| 20 | 50A maxi | Instrument panei fuses: 4, 8, 12, 16 |
| 21 | 30A maxi | Trailer brake feed |
| 22 | 20A maxi (Gas) 30A (Diesel) | Distributor pickup (Gas engine), Fuel line heater (Diesel), Glow plug controller (Diesel), Ignition coil (Gas engine), Powertrain control system relay coil, Thick film integrated (TFI) module (Gas engine) |
| Relay 1 | Powertrain control system | |
| Relay 2 | Fuel pump (Gas engine), Injector driver module (IDM relay) (Diesel) | |
| Relay 3 | Horn | |
| Relay 4 | Trailer tow lamps | |
| Relay 5 | Not used |
Additional Fuses
| Circuit Protected | Size | Location |
|---|---|---|
| Headlamps & High Beam Indicator | 22A Circ. Brkr. | Integral with Headlamp Switch |
| Windshield Wiper and Washer Pump | 30A Fuse | Fuse Panei |
| Electric Brakes (Trailer) | 30A Maxi Fuse | Power Distribution Box |
| Trailer Lamps (Relay Feed) | 25A Fuse | Power Distribution Box |
| Altemator, 95 Amp | 12 Ga. Fuse Link | At Starting Motor Relay (Gasoline Engine) |
| Alternator, 130 Amp | (2) 12 Ga. Fuse Links | At Starting Motor Relay (Diesel Engine) |
| Powertrain Control Module | 20A (Diesel) 30A (Gasoline) | Power Distribution Box |
| Fuel Pump | 20A Maxi Fuse | Power Distribution Box |
| Headlamp Switch | 40A Maxi Fuse | Power Distribution Box |
| Diesel Glow Plugs | (2) 14 Ga. Fuse Links | At Starting Motor Relay |
| Power Windows | 20A C.B. | Fuse Panei |
| Power Door Locks | 20A C.B. | Fuse Panei |
| Hazard Flashers | 15A Fuse | Fuse Panei |
| Trailer Battery Recharge Feed | 30A Maxi Fuse | Power Distribution Box |