Ford F-150 1998 Fuse Box Info
Fuse box location:
The fuse box is located below and to the left of the steering wheel by the brake pedal.
Engine compartment fuse box:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | 15A | Flasher Relay |
| 2 | 5A | Instrument cluster |
| 3 | 25A | Cigarette lighter |
| 4 | 5A | Park Lamp Relay, Headlamp Relay, Autolamp Module Remote Anti-Theft Personality (RAP) Module, Power Mirror Switch |
| 5 | 15A | Digital Transmission Range (DTR) Sensor (A/T), Backup Lamp Switch (M/T), Daytime Running Lights (DRL) Module, Speed Control Servo/Amplifier Assembly, Heater-A/C Control Assembly, Blend Door Actuator |
| 6 | 5A | Shift Lock Actuator, Generic Electronic Module (GEM), Rear Air Suspension (RAS) Module |
| 7 | - | Not used |
| 8 | 5A | Radio, Main Light Switch, Remote Anti-Theft Personality (RAP) Module |
| 9 | - | Not used |
| 10 | - | Not used |
| 11 | 30A | Washer Pump Relay, Wiper Run/Park Relay, Wiper Hi/LO Relay, Windshield Wiper Motor |
| 12 | 5A | Data Link Connector (DLC) |
| 13 | 15A | Rear Anti-Lock Brake System (RABS) Module, Brake On/Off (BOO) Switch, Brake Pressure Switch |
| 14 | 15A | Battery Saver Relay, Interior Lamp Relay |
| 15 | 5A | Generic Electronic Module (GEM) |
| 16 | 20A | Instrument Cluster (W/O DRL), Daytime Running Lamps (DRL) Module, Hi-Beam Headlamps (Power supplied through Multi-Function Switch) |
| 17 | - | Not used |
| 18 | 5A | 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 (Power supplied through Main Light Switch) |
| 19 | 10A | Instrument Cluster, Air Bag Diagnostic Monitor |
| 20 | 5A | Powertrain Control Module (PCM), Generic Electronic Module (GEM)/Central Timer Module (CTM) |
| 21 | 15A | Clutch Pedal Position (CPP) Switch (W/O RAP), Starter Interrupt Relay (W/RAP) |
| 22 | 10A | Air Bag Diagnostic Monitor, Passive De-Activation (PAD) Module |
| 23 | 10A | Trailer tow Battery Charge Relay, 4X4 Hub Solenoid, 4X2 Hub Solenoid, Flasher Relay, Shift on the Fly Relay |
| 24 | 10A | Blower Relay |
| 25 | 5A | 4 Wheel Anti-Lock Brake System (4WABS) Module, 4WABS Relay |
| 26 | 10A | Daytime Running Lamps (DRL) Module, Right Headlamp |
| 27 | 5A | Main Light Switch, Fog Lamp Relay |
| 28 | 10A | Left Headlamp |
| 29 | 5A | Autolamp Module, Instrument Cluster, Transmission Control Switch (TCS), Brake Warning Resistor/Diode Assembly (W/RABS) |
| 30 | 30A | Radio Noise Capacitor, Ignition Coil, PCM Power Diode |
| 31 | - | Not used |
| RELAY 1 | Interior lamp relay | |
| RELAY 2 | Battery saver relay | |
| RELAY 3 | Not used | |
| RELAY 4 | One touch down relay | |
| RELAY 5 | ACC delay relay |
Engine compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | 20A | Trailer Tow Running Lamp Relay, Trailer Tow Backup Lamp Relay |
| 2 | 10A | Air Bag Diagnostic Monitor |
| 3 | 15A | All Unlock Relay, All Lock Relay, Driver Unlock Relay, LH Power Door Lock Switch, RH Power Door Lock Switch |
| 4 | 15A | Rear Air Suspension (RAS) |
| 5 | 20A | Horn Relay |
| 6 | 15A | Radio, Premium Sound Amplifier, CD Changer |
| 7 | 15A | Main Light Switch, Park Lamp Relay |
| 8 | 30A | Main Light Switch, Headlamp Relay, Multi-Function Switch |
| 9 | 15A | Daytime Running Lamps (DRL) Module, Fog Lamp Relay |
| 10 | 25A | Auxiliary Power Socket |
| 11 | - | Not used |
| 12 | - | Not used |
| 13 | - | Not used |
| 14 | 60/20A | 4 Wheel Anti-Lock Brake System (4WABS) Module/Ignition Switch (W/RABS Only) |
| 15 | 50A | Rear Air Suspension Compressor |
| 16 | 40A | Trailer Tow Battery Charge Relay, Engine Fuse Module (Fuse 2) |
| 17 | 30A | Shift on the Fly Relay, Transfer Case Shift Relay |
| 18 | 30A | Power Seat Control Switch |
| 19 | 20A | Fuel Pump Relay |
| 20 | 50A | Ignition Switch |
| 21 | 50A | Ignition Switch |
| 22 | 50A | Junction Box Fuse/Relay Panel Battery Feed |
| 23 | 40A | Blower Relay |
| 24 | 30A | PCM Power Relay, Engine Fuse Module (Fuse 1) |
| 25 | 30A | Junction Box Fuse/Relay Panel, ACC Delay Relay |
| 26 | - | Not used |
| 27 | - | Not used |
| 28 | 30A | Trailer Electronic Brake Controller |
| 29 | - | Not used |
| D1 | Rear ABS diode | |
| D2 | PCM diode | |
| RELAY 1 | Windshield wipers HI/LO speed | |
| RELAY 2 | Windshield wipers run/park relay | |
| RELAY 3 | Washer pump relay | |
| RELAY 4 | Fuel pump relay | |
| RELAY 5 | Horn relay | |
| RELAY 6 | EEC power relay |
