In this article, we’ll explore the 1999 Ford Expedition fuse box diagram in a way that’s easy to understand. We’ll explain what each fuse does, so you can have a better understanding of how your vehicle’s electrical system works. By learning about each fuse’s function, you’ll be able to figure out which fuse might be causing a problem if something isn’t working properly. With the fuse box diagram as your guide, you’ll be able to navigate through your car’s electrical system and find the right fuse quickly. We’ll help you understand your car’s electrical system better, so you can troubleshoot issues with confidence and enjoy a smoother ownership experience.
Table of Contents
Note: All information contained in this Quick Reference Guide was accurate at the time of duplication. For detailed operating and safety information, please consult your Owner’s Manual.
1999 Ford Expedition Fuse Box Diagram (Power distribution box)
Installed within the engine compartment of your vehicle lies the power distribution box, a sanctuary for high-current fuses. Acting as stalwart protectors, these fuses assume a critical role in strengthening the main electrical systems against bad overloads, guaranteeing their unhindered operation. Remarkably, the high-current fuses housed within the power distribution box adhere to a unique coding system, an intricate tapestry that unravels the enigma of differentiation and identification among their ranks. It is through this coding symphony that the individual fuses reveal their true essence, allowing for a harmonious interplay within the electrical realm of your vehicle.
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.
Equipped with the coding system, you possess the ability to skillfully diagnose and resolve any concerns pertaining to the high-current fuses housed within the power distribution box. This valuable understanding empowers you to shield the primary electrical systems of your vehicle from possible overloads and uphold their peak functionality. Behold, the coded realm of the high-current fuses unfolds as follows:
*Mini fuses /**Maxi fuses
| Fuse/RelayLocation | Fuse AmpRating | Description |
| 1 | 25A * | PowerPoint |
| 2 | 30A* | Powertrain Control Module |
| 3 | 30A* | Headlamps/Autolamps |
| 4 | 25A* | Console Powerpoint |
| 5 | 20A* | Trailer Tow Backup/Park Lamps |
| 6 | 15A* | Parklamps/Autolamps |
| 7 | 20A* | Horn |
| 8 | 30A* | Power Door Locks |
| 9 | 15A* | Daytime Running Lamps (DRL), Fog Lamps |
| 10 | 20A* | Fuel Pump |
| 11 | 20A* | Alternator Field |
| 12 | 10A* | Rear Wipers |
| 13 | — | Not Used |
| 14 | — | Not Used |
| 15 | 10A* | Running Board Lamps |
| 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 Sensors, Canister Vent |
| 24 | 15A* | Powertrain Control Module, AutomaticTransmission, CMS Sensor |
| 101 | 30A** | Trailer Tow Battery Charge |
| 102 | 50A** | Moonroof, Flip Windows, and Heated Seats |
| 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** | Moonroof, Flip Windows and Heated Seats |
| 111 | 50A** | Ignition Switch Battery Feed (Start Circuit) |
| 112 | 30A** | Drivers Power Seat, Adjustable Pedals |
| 113 | 50A** | Ignition Switch Battery Feed (Run and Accessory Circuits) |
| 114 | 30A** | Climate Control Auxiliary Blower |
| 115 | — | Not Used |
| 116 | 40A** | Rear Window Defroster, Heated Mirrors |
| 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 | — | Foglamp Relay |
| 207 | — | Front Washer Pump Relay |
| 208 | — | Rear Washer Pump Relay |
| 209 | — | Front Wiper Hi/Lo Relay |
| 210 | — | Not Used |
| 211 | — | Not Used |
| 212 | — | Rear Wiper Up Relay |
| 213 | — | Rear Wiper Down Relay |
| 301 | — | Fuel Pump Relay |
| 302 | — | Trailer Tow Battery Charge Relay |
| 303 | — | Not Used |
| 304 | — | Powertrain Control Module Relay |
| 401 | — | Not Used |
| 501 | — | Powertrain Control Module Diode |
| 502 | — | A/C Clutch Diode |
| 503 | — | Not Used |
| 601 | 30A | Delayed Accessory (Power Windows, FlipWindows, Moonroof) |
| 602 | — | Not Used |
Important: Always disconnect the battery before servicing high-current fuses. To reduce the risk of electrical shock, always replace the cover with the power distribution box before reconnecting the battery or refilling fluid reservoirs. 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.
1999 Ford Expedition Fuse Box Diagram (Passenger compartment panel)
Underneath the steering wheel, towards the left side, and by the brake pedal, lies the fuse panel, strategically placed for easy access. By simply removing the cover of the panel, you will reveal a collection of fuses within. To aid you in the process of fuse removal, the manufacturers have included a fuse puller tool conveniently positioned on the inside of the fuse panel cover.
When the occasion calls for the removal of a fuse, begin by identifying the specific fuse that necessitates attention, considering the issue at hand. Firmly grasp the fuse puller tool, ensuring a secure grip that enables optimal control. Align the prongs of the tool with the corresponding slots of the targeted fuse, ensuring proper alignment. With steady and moderate force, delicately extract the fuse from its designated position, exercising caution to prevent any damage to the fuse or surrounding components.
Once the fuse has been successfully removed, take a moment to inspect it closely. Determine if the fuse has blown or if replacement is necessary for any other reason. If a replacement is required, acquire a new fuse with the appropriate rating and carefully insert it into the vacant slot. Ensure that the replacement fuse is securely seated and aligned correctly among the other fuses.
After completing the desired adjustments to the fuses, reattach the panel cover. Take care to align it accurately and firmly secure it in place, guaranteeing the safety and protection of the housed fuses.
It’s important to note that the fuse panel and its accompanying cover have been thoughtfully designed to simplify the process of fuse removal and replacement. By adhering to these instructions and utilizing the provided fuse puller tool, you can effortlessly manage the fuses of your vehicle, ensuring their optimum functionality
| Fuse/Relay Location | Fuse AmpRating | Description |
| 1 | 25A | Audio |
| 2 | 5A | Overhead Trip Computer, ElectronicAutomatic Temperature Control (EATC), Powertrain Control Module (PCM), Cluster |
| 3 | 20A | Cigar Lighter, OBD-II Scan Tool Connector |
| 4 | 15A | Autolamp Module, Remote Entry Module, Mirrors, Air Suspension Switch |
| 5 | 15A | AC Clutch Relay, Speed Control Module, Reverse Lamp, EVO Module, Climate ModeSwitch (Front Blower Relay), DaytimeRunning Lamp Relay |
| 6 | 5A | Cluster, Overhead Trip Computer, Compass, Brake Shift Interlock Solenoid, AirSuspension Module, GEM Module, EVOSteering Sensor |
| 7 | 5A | Aux A/C Blower Relay, Console Blower |
| 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 WiperMotor, Rear Washer Pump Relay |
| 12 | — | Not Used |
| 13 | 20A | Stop Lamp Switch (Lamps), Turn/Hazard Flasher, Speed Control Module |
| 14 | 15A | Rear Wipers, Running Board Lamps, 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 |
| 16 | 20A | Headlamps (Hi Beams), Cluster (Hi BeamIndicator) |
| 17 | 10A | Heated Mirrors, Heated Grid SwitchIndicator |
| 18 | 5A | Instrument Illumination (Dimmer Switch Power) |
| 19 | — | Not Used |
| 20 | 5A | Audio, Four Wheel Air Suspension (4WAS) Module, GEM Module |
| 21 | 15A | Starter Relay, Fuse 20 |
| 22 | 10A | Air Bag Module |
| 23 | 10A | Aux A/C, Heated Seats, Trailer Tow BatteryCharge, Turn/Hazard Flasher, ConsoleBlower Door Actuator |
| 24 | 10A | Climate Mode Switch (Blower Relay), EATC (via fuse 7), EATC 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 | 10A | Rear Integrated Control Panel (Audio), CD Player |
| Relay 1 | — | Interior Lamp Relay |
| Relay 2 | — | Battery Saver Relay |
| Relay 3 | — | Rear Window Defroster Relay |
| Relay 4 | — | One Touch Down Window Relay |
| Relay 5 | — | ACC Delay Relay |
1999 Ford Expedition 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 |
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Conclusion
In summary, the Fuse Box Diagram for the 1999 Ford Expedition holds significant value for truck owners as it serves as a vital tool in comprehending the electrical system of their vehicles. This diagram offers a well-organized and clear layout of the fuse box and its corresponding fuses, making it easier to identify and resolve electrical problems efficiently.
The significance of the Fuse Box Diagram cannot be emphasized enough, as it empowers owners to pinpoint the exact fuse responsible for a malfunctioning component or circuit. This knowledge not only saves time and effort but also streamlines the diagnosis and repair process, leading to more effective outcomes.
Nevertheless, it is crucial to acknowledge that intricate electrical issues may necessitate professional assistance. While the Fuse Box Diagram provides a starting point for troubleshooting, it is important to recognize the limitations of one’s own expertise. Seeking professional support when needed ensures that complex problems are adequately addressed, promoting optimal safety and vehicle functionality.
