This article is all about the 1999 Ford F150 fuse box diagram. We’ll go through each fuse and explain what it does. Our goal is to help you grasp how your vehicle’s electrical system works, giving you the know-how to troubleshoot electrical problems like an expert.
Table of Contents
Note: If a fuse blows or a circuit breaker opens, all parts connected to that circuit will stop working. Taking the time to inspect and replace faulty fuses can save you from unnecessary repairs and potential hazards, ensuring the smooth operation of your vehicle's electrical components.
1999 Ford F150 Power Distribution Box Diagram
Note: In the event that you need to disconnect and reconnect the battery, it's important to note that certain features may require resetting. This step is necessary to restore their functionality.
*Mini fuses / **Maxi fuses
| Fuse/RelayLocation | Fuse AmpRating | Description |
| 1 | 25A * | PowerPoint |
| 2 | 30A* | Powertrain Control Module |
| 3 | 30A* | Headlamps/Autolamps |
| 4 | 15A* | Air Suspension |
| 5 | 20A* | Trailer Tow Backup/Park Lamps |
| 6 | 15A* | Parklamps/Autolamps |
| 7 | 20A* | Horn |
| 8 | 15A* | Power Door Locks |
| 9 | 15A* | Daytime Running Lamps (DRL), Fog Lamps |
| 10 | 20A* | Fuel Pump |
| 11 | 20A* | Alternator Field |
| 12 | — | Not Used |
| 13 | — | Not Used |
| 14 | — | Not Used |
| 15 | — | Not Used |
| 16 | — | Not Used |
| 17 | — | Not Used |
| 18 | 15A* | Powertrain Control Module, Fuel Injectors, Fuel Pump, Mass Air Flow Sensor |
| 19 | 10A* | Trailer Tow Stop and Right Turn Lamp |
| 20 | 10A* | Trailer Tow Stop and Left Turn Lamp |
| 21 | — | Not Used |
| 22 | — | Not Used |
| 23 | 15A* | Powertrain Control Module, HEGO Sensor, Canister Vent |
| 24 | 15A* | Powertrain Control Module, AutomaticTransmission, CMS Sensor |
| 101 | 30A** | Trailer Tow Battery Charge |
| 102 | 50/20A** | Four Wheel Antilock Brake Module/RearWheel Antilock Brake Module |
| 103 | 50A* | Junction Block Battery Feed |
| 104 | 30A** | 4×4 Shift Motor & Clutch |
| 105 | 40A** | Climate Control Front Blower |
| 106 | — | Not Used |
| 107 | — | Not Used |
| 108 | 30A** | Trailer Tow Electric Brake |
| 109 | 50A** | Air Suspension Compressor |
| 110 | 30A** | Power Windows |
| 111 | 50A** | Ignition Switch Battery Feed (Start and Run Circuits) |
| 112 | 30A** | Drivers Power Seat |
| 113 | 50A** | Ignition Switch Battery Feed (Run and Accessory Circuits) |
| 114 | — | Not Used |
| 115 | — | Not Used |
| 116 | — | Not Used |
| 117 | — | Not Used |
| 118 | — | Not Used |
| 201 | — | Trailer Tow Park Lamp Relay |
| 202 | — | Front Wiper Run/Park Relay |
| 203 | — | Trailer Tow Backup Lamp Relay |
| 204 | — | A/C Clutch Relay |
| 205 | — | Horn Relay |
| 206 | — | Fog Lamp Relay |
| 207 | — | Front Washer Pump Relay |
| 208 | — | Not Used |
| 209 | — | Front Wiper Hi/Lo Relay |
| 301 | — | Fuel Pump Relay |
| 302 | — | Trailer Tow Battery Charge Relay |
| 303 | — | Rear Air Suspension Relay |
| 304 | — | Powertrain Control Module Relay |
| 401 | — | Not Used |
| 501 | — | Powertrain Control Module Diode |
| 502 | — | A/C Clutch Diode |
| 503 | — | Not Used |
| 601 | — | Not Used |
| 602 | — | Not Used |
1999 Ford F150 Passenger Compartment Fuse Panel
| Fuse/Relay Location | Fuse AmpRating | Description |
| 1 | 15A | Audio |
| 2 | 5A | Powertrain Control Module (PCM), Cluster |
| 3 | 20A | Cigar Lighter, OBD-II Scan Tool Connector |
| 4 | 15A | Autolamp Module, Remote Entry Module, Mirrors |
| 5 | 15A | AC Clutch Relay, Speed Control Module, Reverse Lamp, Climate Mode Switch, Daytime Running Lamp Relay |
| 6 | 5A | Cluster, Brake Shift Interlock Solenoid, Rear Air Suspension Module, GEM Module |
| 7 | — | Not Used |
| 8 | 5A | Radio, Remote Entry Module, GEM Module |
| 9 | — | Not Used |
| 10 | — | Not Used |
| 11 | 30A | Front Washer Pump Relay, Wiper Run/ParkRelay, Wiper Hi/LO Relay, Windshield Wiper Motor |
| 12 | — | Not Used |
| 13 | 20A | Stop Lamp Switch (Lamps), Turn/Hazard Flasher, Speed Control Module |
| 14 | 15A | Battery Saver Relay, Interior Lamp Relay, Accessory Delay Relay (Power Windows) |
| 15 | 5A | Stop Lamp Switch, (Speed Control, BrakeShift Interlock, ABS, PCM Module Inputs), GEM Module, RABS Test Connector |
| 16 | 20A | Headlamps (Hi Beams), Cluster (Hi BeamIndicator) |
| 17 | — | Not Used |
| 18 | 5A | Instrument Illumination (Dimmer Switch Power) |
| 19 | — | Not Used |
| 20 | 5A | Audio, GEM Module, Powertrain Control Module (PCM), |
| 21 | 15A | Starter Relay, Clutch Switch, Fuse 20 |
| 22 | 10A | Air Bag Module, Passenger Airbag Deactivation Module |
| 23 | 10A | Trailer Tow Battery Charge Relay, Turn/Hazard Flasher, 4×4 Solenoids, 4×4 Relays |
| 24 | 10A | Climate Mode Switch (Blower Relay) |
| 25 | 5A | 4 Wheel Anti-Lock Brake System (4WABS)Module |
| 26 | 10A | Right Side Low Beam Headlamp |
| 27 | 5A | Foglamp Relay and Foglamp Indicator |
| 28 | 10A | Left Side Low Beam Headlamp |
| 29 | 5A | Autolamp Module, Transmission Overdrive Control Switch |
| 30 | 30A | Passive Anti Theft Transceiver, Cluster, Ignition Coils, Powertrain Control Module Relay |
| 31 | — | Not Used |
| Relay 1 | — | Interior Lamp Relay |
| Relay 2 | — | Battery Saver Relay |
| Relay 4 | — | One Touch Down Window Relay |
| Relay 5 | — | ACC Delay Relay |
1999 Ford F150 Standard fuse amperage rating and color
| Fuse Rating | Mini Fuses | Standard Fuses | Maxi Fuses | Cartridge Maxi Fuses | Fuse Link Cartridge |
| 2A | Grey | Grey | — | — | — |
| 3A | Violet | Violet | — | — | — |
| 4A | Pink | Pink | — | — | — |
| 5A | Tan | Tan | — | — | — |
| 7.5A | Brown | Brown | — | — | — |
| 10A | Red | Red | — | — | — |
| 15A | Blue | Blue | — | — | — |
| 20A | Yellow | Yellow | Yellow | Blue | Blue |
| 25A | Natural | Natural | — | — | — |
| 30A | Green | Green | Green | Pink | Pink |
| 40A | — | — | Orange | Green | Green |
| 50A | — | — | Red | Red | Red |
| 60A | — | — | Blue | — | Yellow |
| 70A | — | — | Tan | — | Brown |
| 80A | — | — | Natural | — | Black |
Tom Smith is a passionate car mechanic and automotive enthusiast, specializing in the intricate world of car fuse boxes. With years of hands-on experience under the hood, he has earned a reputation as a reliable expert in his field. As the founder and content creator of the popular blog website 'carsfuse.com,' Tom has dedicated himself to sharing his extensive knowledge of car fuse boxes and electrical systems with the world.