Understanding the fuse box in your 2000 Ford F-150 is crucial for diagnosing and resolving electrical issues. This guide will help you locate the fuse panels and identify the specific fuse related to your OBD2 port, ensuring you can keep your truck running smoothly and diagnose any trouble codes effectively. Like many vehicles, the 2000 Ford F-150 actually utilizes two distinct fuse boxes. Knowing the location and function of each is essential for any troubleshooting or maintenance task.
Locating the Fuse Boxes in Your 2000 Ford F-150
Your 2000 Ford F-150 is equipped with two primary fuse boxes: the passenger compartment fuse panel and the power distribution box.
Passenger Compartment Fuse Panel
The passenger compartment fuse panel is located inside the vehicle. Typically, you can find it beneath the dashboard on the driver’s side. Refer to your owner’s manual for the precise location as it can slightly vary depending on the specific trim and options of your F-150. This panel houses fuses and relays that protect circuits serving interior components and some engine management systems.
2000 Ford F-150 Passenger Compartment Fuse Panel Diagram
Power Distribution Box
The power distribution box is situated in the engine compartment. It is usually found under the hood, near the battery or along the fender wall. This box contains high-current fuses and relays that manage the vehicle’s main power distribution and protect critical systems like the engine, transmission, and braking system.
2000 Ford F-150 Power Distribution Box Diagram
2000 Ford F-150 Passenger Compartment Fuse Panel Diagram and Fuse List
The following table details the fuses and relays located in the passenger compartment fuse panel of your 2000 Ford F-150. This is where you’ll find the fuse related to your OBD2 port.
| Type | No. | Description |
|---|---|---|
| Fuse MINI 15A | 1 | Audio |
| Fuse MINI 5A | 2 | Powertrain Control Module (PCM), Cluster |
| Fuse MINI 20A | 3 | Cigar Lighter, OBD-II Scan Tool Connector |
| Fuse MINI 5A | 4 | Remote Entry Module, Mirrors |
| Fuse MINI 15A | 5 | Speed Control Module, Reverse Lamp, Climate Mode Switch, Daytime Running Lamp Relay |
| Fuse MINI 5A | 6 | Cluster, Brake Shift Interlock Solenoid, GEM Module |
| Fuse MINI 5A | 8 | Radio, Remote Entry Module, GEM Module |
| Fuse MINI 30A | 11 | Front Washer Pump Relay, Wiper Run/Park Relay, Wiper Hi/LO Relay, Windshield Wiper Motor |
| Fuse MINI 20A | 13 | Stop Lamp Switch (Lamps), Turn/Hazard Flasher, Speed Control Module |
| Fuse MINI 15A | 14 | Battery Saver Relay, Interior Lamp Relay, Accessory Delay Relay (Power Windows) |
| Fuse MINI 5A | 15 | Stop Lamp Switch, (Speed Control, Brake Shift Interlock, ABS, PCM Module Inputs), GEM Module, RABS Test Connector |
| Fuse MINI 20A | 16 | Headlamps (Hi Beams), Cluster (Hi Beam Indicator) |
| Fuse MINI 5A | 18 | Instrument Illumination (Dimmer Switch Power) |
| Fuse MINI 5A | 20 | Audio, GEM (or CTM) Module, Powertrain Control Module (PCM) |
| Fuse MINI 15A | 21 | Starter Relay, Clutch Switch, Fuse 20 |
| Fuse MINI 10A | 22 | Air Bag Module, Passenger Airbag Deactivation Module, Climate Mode Switch (Blower Relay) |
| Fuse MINI 10A | 23 | Trailer Tow Battery Charge Relay, Turn/Hazard Flasher, 4×4 Solenoids, 4×4 Relays, Overhead Console, 4 Wheel Anti-Lock Brake System (4WABS) Module |
| Fuse MINI 10A | 26 | Right Side Low Beam Headlamp |
| Fuse MINI 5A | 27 | Foglamp Relay and Foglamp Indicator |
| Fuse MINI 10A | 28 | Left Side Low Beam Headlamp |
| Fuse MINI 5A | 29 | Autolamp Module, Transmission Overdrive Control Switch |
| Fuse MINI 30A | 30 | Passive Anti Theft Transceiver, Cluster, Ignition Coils, Powertrain Control Module Relay |
| Relay | R1 | Interior Lamp Relay |
| Relay | R2 | Battery Saver Relay |
| Relay | R4 | One Touch Down Window Relay |
| Relay | R5 | ACC Delay Relay |
2000 Ford F-150 Power Distribution Box Diagram and Fuse List
The subsequent table outlines the fuses and relays found in the power distribution box located in the engine compartment of your 2000 Ford F-150.
| Type | No. | Description |
|---|---|---|
| Fuse MINI 20A | 1 | Power Point |
| Fuse MINI 30A | 2 | Powertrain Control Module |
| Fuse MINI 30A | 3 | Headlamps/Autolamps |
| Fuse MINI 20A | 5 | Trailer Tow Backup/Park Lamps |
| Fuse MINI 15A | 6 | Parklamps/Autolamps, Passenger Fuse Panel Feed Fuse #18 |
| Fuse MINI 20A | 7 | Horn |
| Fuse MINI 15A | 8 | Power Door Locks |
| Fuse MINI 15A | 9 | Daytime Running Lamps (DRL), Fog Lamps |
| Fuse MINI 20A | 10 | Fuel Pump |
| Fuse MINI 20A | 11 | Alternator Field |
| Fuse MINI 20A | 12 | Rear Auxiliary Power Point |
| Fuse MINI 15A | 13 | A/C Clutch |
| Fuse MINI 15A | 18 | Powertrain Control Module, Fuel Injectors, Fuel Pump Relay, Idle Air Control, Mass Air Flow Sensor |
| Fuse MINI 10A | 19 | Trailer Tow Stop and Right Turn Lamp |
| Fuse MINI 10A | 20 | Trailer Tow Stop and Left Turn Lamp |
| Fuse MINI 15A | 23 | HEGO Sensor, Canister Vent, Automatic Transmission, CMS Sensor |
| Fuse FMX/JCase 30A | 101 | Trailer Tow Battery Charge |
| Fuse FMX/JCase 50A | 102 | Four Wheel Antilock Brake Module |
| Fuse FMX/JCase 20A | 102 | Rear Wheel Antilock Brake Module |
| Fuse FMX/JCase 50A | 103 | Junction Block Battery Feed |
| Fuse FMX/JCase 30A | 104 | 4×4 Shift Motor & Clutch |
| Fuse FMX/JCase 40A | 105 | Climate Control Front Blower |
| Fuse FMX/JCase 20A | 106 | Inter Cooler Pump [Lightning only] |
| Fuse FMX/JCase 30A | 108 | Trailer Tow Electric Brake |
| Fuse FMX/JCase 30A | 110 | Power Windows |
| Fuse FMX/JCase 40A | 111 | Ignition Switch Battery Feed (Start and Run Circuits) |
| Fuse FMX/JCase 30A | 112 | Drivers Power Seat, Adjustable Pedals |
| Fuse FMX/JCase 40A | 113 | Ignition Switch Battery Feed (Run and Accessory Circuits) |
| Fuse FMX/JCase 20A | 115 | Power Door Locks [SuperCrew only] |
| Relay | 201 | Trailer Tow Park Lamp Relay |
| Relay | 202 | Front Wiper Run/Park Relay |
| Relay | 203 | Trailer Tow Backup Lamp Relay |
| Relay | 204 | A/C Clutch Relay |
| Relay | 205 | Horn Relay |
| Relay | 206 | Fog Lamp Relay |
| Relay | 207 | Front Washer Pump Relay |
| Relay | 208 | Inter Cooler Pump Relay [Lightning only] |
| Relay | 209 | Front Wiper Hi/Lo Relay |
| Relay | 301 | Fuel Pump Relay |
| Relay | 302 | Trailer Tow Battery Charge Relay |
| Relay | 304 | Powertrain Control Module Relay |
| Relay | 305 | Fuel Pump Hi/Lo Relay [Lightning only] |
| Relay | 306 | Inertia Switch Relay [Lightning only] |
| Diode ATO | 501 | Powertrain Control Module Diode |
| Diode ATO | 502 | A/C Compressor Diode |
| Circuit breaker MAXI | 601 | Power Windows, Moonroof [SuperCrew only] |
Finding the OBD2 Fuse in Your 2000 Ford F-150
To locate the fuse for your OBD2 (On-Board Diagnostics II) port, refer to the passenger compartment fuse panel diagram and fuse list above.
The OBD2 port fuse is Fuse #3, labeled as “Cigar Lighter, OBD-II Scan Tool Connector”. This is a 20 Amp MINI fuse.
If you are experiencing issues with your OBD2 scanner not powering on or connecting to your 2000 Ford F-150, checking this fuse should be one of your first steps in troubleshooting. A blown fuse is a common cause for a non-functional OBD2 port.
Troubleshooting Fuse Issues
If you suspect a blown fuse, here’s how to check and replace it:
- Locate the Fuse Box: Identify the correct fuse box (passenger compartment for OBD2).
- Identify the Fuse: Use the diagrams provided and locate the fuse number corresponding to the circuit you are checking (Fuse #3 for OBD2).
- Inspect the Fuse: Carefully pull out the fuse. You can usually do this by hand or use a fuse puller tool, often found in the fuse box itself or your vehicle’s tool kit. Hold the fuse up to the light and check if the thin wire inside is broken or melted. If it is, the fuse is blown.
- Replace the Fuse: Use a new fuse with the exact same amperage rating. Never use a fuse with a higher amperage, as this can damage the electrical system. Push the new fuse firmly into the slot.
- Test the Circuit: After replacing the fuse, test the component that was not working (e.g., try your OBD2 scanner again). If the fuse blows again immediately, there is likely a more serious electrical problem that requires professional diagnosis.
Important Notes:
- Always consult your 2000 Ford F-150 owner’s manual for the most accurate fuse diagrams and locations, as variations can exist.
- If you are unsure about working with your vehicle’s electrical system, it is always best to consult a qualified mechanic.
- Keep spare fuses of various amperages in your vehicle for emergencies.
By understanding the fuse box locations and diagrams for your 2000 Ford F-150, and knowing specifically where to find the OBD2 fuse, you are better equipped to maintain your vehicle and address common electrical issues efficiently.
