Maintaining your 2003 Ford Econoline E150 in top condition requires understanding its electrical system, especially when troubleshooting issues. Fuses are crucial components protecting your vehicle’s circuits from overloads. Knowing the 2003 Ford Econoline E150 Obd2 Fuse Location and the layout of your fuse boxes is essential for any DIY mechanic or vehicle owner. This guide will walk you through the fuse box locations and diagrams for your 2003 Ford E-150, ensuring you can quickly identify and address any fuse-related problems.
Understanding Fuse Boxes in Your 2003 Ford E-150
Your 2003 Ford E-150 is equipped with two primary fuse boxes. These are strategically placed to manage different electrical circuits throughout the vehicle. Let’s explore each location in detail:
Passenger Compartment Fuse Panel
The passenger compartment fuse panel is conveniently located inside the vehicle. This fuse box primarily controls circuits for interior functions and driver controls.
2003 Ford E-150 passenger compartment fuse panel diagram
This fuse box is typically found beneath the dashboard on the driver’s side. You may need to look under the steering wheel area to locate the panel cover. Once you’ve found it, you can typically remove the cover by gently pressing or unclipping the tabs.
Here’s a detailed diagram and fuse listing for the passenger compartment fuse panel:
Type | No. | Description |
---|---|---|
Fuse MINI 20A | 1 | 4WABS module |
Fuse MINI 15A | 2 | Brake warning lamp, Instrument cluster, Warning chime, 4WABS relay, Warning indicators, Low vacuum warning switch [Diesel only] |
Fuse MINI 15A | 3 | Main light switch, RKE module, Radio, Instrument illumination, VCP and video screens, Overhead console |
Fuse MINI 15A | 4 | Power locks w/RKE, Illuminated entry, Warning chime, Modified vehicle, Main light switch, Courtesy lamps |
Fuse MINI 20A | 5 | RKE module, Power lock switches, Memory lock, Power locks with RKE |
Fuse MINI 10A | 6 | Brake shift interlock, Speed control, DRL module |
Fuse MINI 10A | 7 | Multi-function switch, Turn signals |
Fuse MINI 30A | 8 | Radio capacitor(s) Ignition coil, PCM diode, PCM power relay, Fuel heater [Diesel only], Glow plug relay [Diesel only] |
Fuse MINI 30A | 9 | Wiper control module, Windshield wiper motor |
Fuse MINI 20A | 10 | Main light switch, Park lamps, License lamp (external lamps), Multi-function switch (flash-to-pass) |
Fuse MINI 15A | 11 | Brake pressure switch, Multi-function switch (hazards), Brake lamp switch, Brake lamps |
Fuse MINI 15A | 12 | Transmission Range (TR) sensor, Backup lamps, Auxiliary battery relay |
Fuse MINI 15A | 13 | Blend door actuator, A/C heater, Function selector switch |
Fuse MINI 5A | 14 | Instrument cluster (air bag and charge indicator) |
Fuse MINI 5A | 15 | Trailer battery charge relay |
Fuse MINI 30A | 16 | Power seats |
Fuse MINI 10A | 19 | Air bag diagnostic monitor |
Fuse MINI 5A | 20 | Overdrive cancel switch |
Fuse MINI 30A | 21 | Power windows* |
Fuse MINI 15A | 22 | Memory power radio, Rear seat control unit, Video screen |
Fuse MINI 20A | 23 | Cigar lighter, Data Link Connector (DLC) |
Fuse MINI 10A | 25 | Left headlamp (low beam) |
Fuse MINI 5A | 27 | Radio |
Fuse MINI 20A | 28 | Power plug |
Fuse MINI 15A | 30 | Headlamps (high beam indicator), DRL10A |
Fuse MINI 10A | 31 | Right Headlamp (Low Beam), DRL |
Fuse MINI 5A | 32 | Power mirrors |
Fuse MINI 20A | 33 | Power point #2 |
Fuse MINI 10A | 34 | Transmission Range (TR) sensor |
Fuse MINI 30A | 35 | RKE module |
Fuse MINI 5A | 36 | (Cluster, A/C, Illumination, Radio), Steering column assembly |
Fuse MINI 20A | 37 | Rear power point |
Fuse MINI 10A | 38 | Air bag diagnostic monitor |
Fuse MINI 20A | 39 | Power point #1 |
Fuse MINI 30A | 40 | Modified vehicle |
Fuse MINI 30A | 41 | Modified vehicle |
Circuit breaker ATO | 43 | Power windows* |
Power Distribution Box (Engine Compartment)
The second fuse box, known as the power distribution box, is situated in the engine compartment. This box typically manages high-current circuits and systems essential for the vehicle’s operation.
2003 Ford E-150 power distribution box diagram
You’ll find the power distribution box under the hood, usually on the driver’s side of the engine bay. Look for a black plastic box, and the fuse diagram is often printed on the underside of the lid.
Here’s a breakdown of the fuses and relays within the power distribution box:
Type | No. | Description |
---|---|---|
Fuse MINI 10A | 4 | Powertrain Control Module (PCM) Keep Alive Memory, Instrument cluster, Voltmeter |
Fuse MINI 10A | 5 | Right trailer turn signal |
Fuse MINI 10A | 6 | Left trailer turn signal |
Fuse MINI 20A | 7 | Clearance lamps |
Fuse MAXI 60A | 8 | I/P fuses 4, 5, 10, 11, 16, 22, 23, 28, 32, 38 |
Fuse MAXI 30A | 9 | PCM power relay, Engine compartment fuse 4 |
Fuse MAXI 60A | 10 | Auxiliary battery relay, Engine compartment fuses 14, 22 |
Fuse MAXI 30A | 11 | IDM relay [Diesel only] |
Fuse MAXI 60A | 12 | Engine compartment fuses 25, 27 |
Fuse MAXI 50A | 13 | Blower motor relay (blower motor) |
Fuse MAXI 30A | 14 | Trailer running lamps relay, Trailer backup lamps relay |
Fuse MAXI 40A | 15 | Main light switch, Daytime Running Lights (DRL) |
Fuse MAXI 50A | 16 | Auxiliary blower motor relay |
Fuse MAXI 30A | 17 | Fuel pump relay |
Fuse MAXI 60A | 18 | I/P fuses 33, 37, 39, 40, 41 |
Fuse MAXI 60A | 19 | 4WABS module |
Fuse MAXI 20A | 20 | Electric brake controller |
Fuse MAXI 50A | 21 | Modified vehicle power |
Fuse MAXI 40A | 22 | Trailer battery charge relay, Modified vehicles |
Fuse MAXI 60A | 23 | Ignition switch, Fuse panel |
Fuse MINI 30A | 24 | Natural gas tank valves (NGV only) |
Fuse MINI 20A | 25 | NGV module (NGV only) |
Fuse MINI 10A | 26 | A/C clutch (4.2L only) |
Fuse MINI 15A | 27 | DRL module, Horn relay |
Diode ATO | 28 | PCM diode |
Relay | A | Marker lamps relay |
Relay | B | Stop lamp relay |
Relay | C | Trailer backup lamps relay |
Relay | D | Trailer running lamps relay |
Relay | E | Trailer battery charge relay |
Relay | F | IDM relay [Diesel only], A/C clutch relay (4.2L only) |
Relay | G | PCM relay |
Relay | H | Blower motor relay |
Relay | J | Horn relay |
Relay | K | Fuel pump relay |
Locating the OBD2 Port on Your 2003 Ford E-150
While this article focuses on fuse box locations, it’s important to address the OBD2 aspect of the keyword. The On-Board Diagnostics II (OBD2) port in your 2003 Ford Econoline E150 is your gateway to accessing the vehicle’s computer system for diagnostics and troubleshooting.
For the 2003 Ford E-150, the OBD2 port is typically located under the dashboard on the driver’s side. It’s usually near the steering column, and you might need to look around the lower edge of the dash panel to find it. The OBD2 port is a standardized 16-pin connector, making it compatible with a wide range of diagnostic scanners.
Is there a fuse for the OBD2 port? Yes, in many vehicles, including the 2003 Ford E-150, the OBD2 port often shares a fuse with the cigar lighter or power point. Referring back to the passenger compartment fuse panel diagram, fuse number 23 (20A) is listed for the “Cigar lighter, Data Link Connector (DLC)”. DLC stands for Data Link Connector, which is another term for the OBD2 port. Therefore, if you’re experiencing issues with your OBD2 scanner not powering up when connected to your E-150, check fuse #23 in the passenger compartment fuse panel.
How to Use Fuse Diagrams and Tables
Understanding these fuse diagrams and tables is straightforward. Each table corresponds to a specific fuse box. Here’s how to interpret the information:
- No.: This column indicates the fuse number within the fuse box.
- Type: This specifies the type and amperage rating of the fuse. For example, “Fuse MINI 20A” means it’s a MINI fuse rated at 20 Amps. “Fuse MAXI 60A” indicates a MAXI fuse at 60 Amps.
- Description: This column clearly describes what circuit or system the fuse protects. This is crucial for identifying the correct fuse related to a specific vehicle function.
Troubleshooting with Fuses:
- Identify the Problem: Determine which system in your E-150 is malfunctioning (e.g., radio, lights, power windows).
- Consult the Diagrams: Use the diagrams and tables above to locate the fuse associated with the problematic system.
- Locate the Fuse Box: Find the correct fuse box (passenger compartment or power distribution box) based on the diagram.
- Inspect the Fuse: Remove the fuse using a fuse puller (often found in the fuse box). Visually inspect the fuse. A blown fuse will have a broken wire inside or a dark/melted appearance.
- Replace the Fuse: If the fuse is blown, replace it with a new fuse of the exact same type and amperage rating. Never use a fuse with a higher amperage rating as this can damage the circuit and potentially cause a fire.
- Test the System: After replacing the fuse, test the system to see if the problem is resolved. If the new fuse blows immediately, there’s likely a more serious electrical issue requiring professional diagnosis.
By using this guide, you can confidently locate the fuse boxes and understand the fuse layout of your 2003 Ford Econoline E150. Remember to always prioritize safety when working with your vehicle’s electrical system. If you’re unsure about any step, consult a qualified automotive technician.