The 2002 Ford Taurus, like all modern vehicles, relies on a complex electrical system to operate various functions. When diagnosing issues with your car, especially those related to engine performance or emissions, the On-Board Diagnostics II (OBD2) port is your first point of contact. This port allows mechanics and DIY enthusiasts to connect scan tools and retrieve valuable diagnostic trouble codes. However, if your OBD2 port isn’t working, a blown fuse could be the culprit. Understanding the “2002 Taurus Obd2 Fuse” location and function is crucial for efficient car maintenance.
The 2002 Ford Taurus actually incorporates two distinct fuse boxes to manage its electrical circuits. Knowing where these fuse boxes are located and how they are laid out is the first step in troubleshooting any electrical problem, including issues with your OBD2 port. Let’s explore these fuse boxes in detail.
Passenger Compartment Fuse Panel
The primary fuse box you’ll likely need to access for interior electrical components, including systems related to the OBD2 port, is the passenger compartment fuse panel.
2002 Ford Taurus passenger compartment fuse panel diagram
This fuse panel is typically located inside the vehicle, often beneath the dashboard on the driver’s side or passenger side. Consult your owner’s manual for the exact location in your 2002 Ford Taurus. This panel houses fuses and relays that protect circuits for various interior functions.
Here is a detailed diagram and table outlining the fuses and relays within the passenger compartment fuse panel of your 2002 Ford Taurus:
| Type | No. | Description |
|---|---|---|
| Relay | 1 | Accessory delay relay |
| Relay | 2 | Driver one touch down relay |
| Relay | 3 | Blower motor relay |
| Relay | 4 | Flasher relay |
| Fuse FMX/JCase 40A | 7 | Rear defrost grid feed |
| Fuse FMX/JCase 40A | 8 | Blower motor |
| Relay | 9 | Rear defrost relay |
| Circuit breaker ATO | 10 | Circuit breaker: Power seats, Delayed accessory, Adjustable pedals |
| Fuse MICRO2 15A | 11 | Integrated control panel (ICP), Rear washer wiper control, Front washer, Cell phone, Passenger switch illumination, GEM, Rear wiper motor |
| Fuse MICRO2 10A | 12 | Heated mirrors, Rear defrost switch |
| Fuse MICRO2 20A | 13 | Power point |
| Fuse MICRO2 30A | 15 | Front wiper motor |
| Fuse MICRO2 15A | 16 | Flasher and GEM power, Integrated control panel (ICP) power, RCC memory, Cluster |
| Fuse MICRO2 15A | 17 | Stop lamp, Speed control deactivating switch |
| Fuse MICRO2 20A | 22 | Deck lid release solenoid, Lock/unlock relays |
| Fuse MICRO2 10A | 23 | Air bag module, PATS transceiver |
| Fuse MICRO2 15A | 24 | Transit relay |
| Fuse MICRO2 2A | 25 | PCM relay, Fuel pump relay |
| Fuse MICRO2 10A | 26 | Mirrors, Power antenna, Pulse stretcher module, Deck lid lamp, Battery saver |
| Fuse MICRO2 10A | 27 | Gauges and warning lamps, Integrated control panel (ICP), FFV sender, GEM |
| Fuse MICRO2 10A | 28 | Blower motor relay coil, EATC logic, Puddle lamps |
| Fuse MICRO2 15A | 29 | Autolamps, Park lamps, PWM, Headlamp switch |
| Fuse MICRO2 15A | 30 | Horns and horn switch, OBD II connector |
| Fuse MICRO2 10A | 32 | ABS, DRL relay coil, Speed control actuator, Traction control switch, AC heater selector switch, Blend door actuator, Brake shift interlock, Rear defroster relay coil |
| Fuse MICRO2 15A | 36 | Turn signals, Back-up lamps |
| Fuse MICRO2 15A | 37 | Transmission position switch |
| Fuse MICRO2 5A | 38 | GEM park neutral switch |
Locating the OBD2 Fuse: As highlighted in the table, Fuse #30 in the passenger compartment fuse panel is a 15A MICRO2 fuse that protects the circuit for the OBD II connector, as well as the horns and horn switch. If your OBD2 scanner is not powering on when connected to your 2002 Taurus, or if your horn is also not working, this fuse is the first place to check.
Power Distribution Box
The second fuse box in your 2002 Ford Taurus is the power distribution box, often located under the hood in the engine compartment. This box typically manages high-current circuits and relays for critical vehicle systems.
2002 Ford Taurus power distribution box diagram under hood
While the OBD2 port fuse is located in the passenger compartment fuse box, understanding the power distribution box is beneficial for comprehensive electrical troubleshooting. Here’s a diagram and table for the power distribution box:
| Type | No. | Description |
|---|---|---|
| Fuse MAXI 60A | 1 | Fuse junction panel |
| Fuse MAXI 30A | 2 | PCM relay |
| Fuse MAXI 60A | 3 | Fuse junction panel |
| Fuse MAXI 40A | 7 | Starter relay, Ignition switch |
| Fuse MAXI 20A | 8 | Transit relay [export only] |
| Fuse MAXI 40A | 9 | Cooling fan relays |
| Fuse MAXI 40A | 13 | Anti-lock brake module pump feed |
| Fuse MINI 20A | 15 | Anti-lock brake module valve solenoid |
| Fuse MINI 20A | 16 | Fuel pump relay |
| Fuse MINI 20A | 17 | Cell port |
| Fuse MINI 20A | 18 | Cigar lighter |
| Fuse MINI 15A | 19 | Right headlamp |
| Fuse MINI 21A | 21 | Left headlamp |
| Fuse MINI 10A | 22 | A/C clutch relay, PCM keep alive power |
| Relay | 23 | Starter motor relay |
| Relay | 24 | Fan relay |
| Relay | 25 | Wiper speed relay |
| Fuse MINI 10A | 26 | Alternator |
| Fuse MINI 5A | 27 | Rear control unit, Antenna |
| Fuse MINI 15A | 28 | HEGO sensor transmission shift solenoid, Canister vent, A/C clutch relay |
| Relay | 29 | Wiper park relay |
| Relay | 30 | Fuel pump relay |
| Relay | 31 | PCM power relay |
| Relay | 32 | Fan relay |
| Relay | 33 | A/C clutch relay |
Troubleshooting a Non-Functional OBD2 Port:
If you’re experiencing issues with your OBD2 port on your 2002 Ford Taurus, follow these steps:
- Locate the Passenger Compartment Fuse Box: Refer to your owner’s manual for the exact location.
- Identify Fuse #30: Use the diagram and table provided to pinpoint Fuse #30, the 15A MICRO2 fuse associated with the OBD II connector.
- Inspect the Fuse: Carefully remove the fuse and visually inspect it. Look for a broken filament inside the fuse.
- Replace if Blown: If the fuse is blown, replace it with a new 15A MICRO2 fuse. Important: Always use the correct amperage and type of fuse for replacement.
- Test the OBD2 Port: After replacing the fuse, try connecting your OBD2 scanner again to see if it now powers on and functions correctly.
- Further Diagnosis: If the new fuse blows immediately or if the OBD2 port still doesn’t work, there may be a more serious electrical issue, such as a short circuit or wiring problem. In such cases, it’s recommended to consult a qualified automotive technician for professional diagnosis and repair.
Understanding the fuse layout of your 2002 Ford Taurus, especially the “2002 taurus obd2 fuse” location, empowers you to perform basic troubleshooting and potentially resolve issues quickly and cost-effectively. Always prioritize safety when working with your vehicle’s electrical system, and consult a professional when needed.
