2014 NV200 OBD2 Fuse: Location, Replacement, and Troubleshooting Guide

The On-Board Diagnostics II (OBD2) port in your 2014 Nissan NV200 is a crucial interface for vehicle diagnostics and maintenance. It allows mechanics and DIY enthusiasts to read trouble codes, monitor engine performance, and ensure your van is running smoothly. However, like any electrical component, the OBD2 system is protected by a fuse, and if this fuse blows, you’ll lose the ability to communicate with your vehicle’s computer. This guide will help you understand everything you need to know about the 2014 Nv200 Obd2 Fuse, including its location, how to replace it, and troubleshooting tips to get your diagnostic port working again.

Locating the OBD2 Fuse in Your 2014 NV200

Finding the 2014 NV200 OBD2 fuse is the first step in resolving any issues with your diagnostic port. Nissan NV200 fuse boxes are typically located in two places: inside the cabin and under the hood. For the OBD2 port, you’ll most likely find the relevant fuse in the interior fuse box.

Accessing the Interior Fuse Box: The interior fuse box in a 2014 NV200 is usually located on the driver’s side, often behind a small panel. You’ll typically find this panel on the lower left side of the dashboard, near the steering wheel and door. Refer to your owner’s manual for the exact location as it can slightly vary.
Identifying the OBD2 Fuse: Once you’ve located the interior fuse box and removed the cover, you’ll need to identify the fuse for the OBD2 port. Fuse box diagrams are usually printed on the inside of the fuse box cover or detailed in your NV200 owner’s manual. Look for labels related to “OBD,” “Diagnostic,” “Accessory,” or “Cigar Lighter,” as the OBD2 port often shares a fuse with other components. The amperage rating for this fuse is typically around 10A or 15A, but always confirm the correct rating in your owner’s manual or on the fuse box diagram to ensure you use the right replacement.

Alt text: A close-up view of a Nissan NV200 fuse box, highlighting the layout and labels for identifying different fuses, essential for diagnosing electrical issues.

Symptoms of a Blown OBD2 Fuse

If your 2014 NV200 OBD2 fuse is blown, you’ll likely notice that your OBD2 scanner or code reader fails to power on or connect to the vehicle’s computer. Common symptoms include:

OBD2 Scanner Not Powering On: This is the most obvious sign. If your scanner receives power from the OBD2 port, it won’t turn on at all.
Scanner Powers On but Cannot Connect: In some cases, the scanner might power on using its own battery, but it will fail to establish a communication link with the NV200’s computer when plugged into the OBD2 port.
Check Engine Light Issues: While a blown OBD2 fuse primarily affects the diagnostic port’s functionality, in rare cases, it might be related to other electrical circuits that could indirectly impact the check engine light system. However, a blown fuse is unlikely to directly cause the check engine light to illuminate.
Other Accessory Malfunctions: Since the OBD2 fuse may be shared with other accessories like the cigarette lighter or accessory power outlets, you might notice these also stop working.

Replacing the 2014 NV200 OBD2 Fuse

Replacing a blown 2014 NV200 OBD2 fuse is a straightforward process you can usually do yourself. Here’s a step-by-step guide:

Turn Off the Ignition: Ensure your NV200’s ignition is completely turned off before working on the fuses.
Locate the Fuse Box and Blown Fuse: Follow the steps above to access the interior fuse box and identify the blown OBD2 fuse using the diagram.
Remove the Blown Fuse: Use a fuse puller tool (often found in the fuse box itself or engine bay fuse box) or a pair of tweezers to gently remove the blown fuse. Tip: Standard pliers or needle-nose pliers can be too thick for the tight space and small fuses. Tweezers or a dedicated fuse puller are much more effective.
Inspect the Blown Fuse: Examine the removed fuse to confirm it’s blown. A blown fuse will typically have a broken wire or melted element inside the clear plastic housing.
Install a New Fuse: Take a new fuse with the exact same amperage rating as the blown one. You can find this rating on the fuse itself or in your owner’s manual. Carefully push the new fuse into the empty slot until it’s firmly seated.
Test the OBD2 Port: After replacing the fuse, turn the ignition to the “ON” position (without starting the engine) and plug in your OBD2 scanner to see if it powers on and connects. If it works, you’ve successfully replaced the fuse.
Carry Spare Fuses: It’s always a good idea to keep a set of spare fuses of various amperages in your NV200, so you’re prepared for future fuse replacements. Auto parts stores sell assorted fuse kits that are perfect for this.

Troubleshooting and Preventing Future Issues

If you replace the 2014 NV200 OBD2 fuse and it blows again immediately or shortly after, there’s likely an underlying issue causing excessive current draw. Here are some troubleshooting steps:

Inspect the OBD2 Port and Wiring: Check the OBD2 port for any signs of damage, corrosion, or bent pins. Inspect the wiring around the OBD2 port for any frayed or damaged wires that could be causing a short circuit.
Faulty OBD2 Scanner or Accessory: A malfunctioning OBD2 scanner or any accessory plugged into the OBD2 port could be drawing excessive current and blowing the fuse. Try using a different scanner or avoid using any accessories plugged into the OBD2 port to see if the issue resolves.
Short Circuit in the Circuit: A short circuit in the wiring of the OBD2 circuit or shared accessories can cause fuses to blow repeatedly. This can be more difficult to diagnose and may require professional electrical troubleshooting.

Preventive Measures:

Use Quality OBD2 Scanners: Avoid using cheap or unreliable OBD2 scanners that might have electrical issues.
Avoid Overloading the Circuit: Be mindful of using multiple accessories that share the same fuse as the OBD2 port, as overloading the circuit can cause the fuse to blow.
Regular Vehicle Maintenance: Proper vehicle maintenance can help prevent electrical issues that could lead to blown fuses.

Conclusion

Dealing with a blown 2014 NV200 OBD2 fuse can be a minor inconvenience, but understanding its location, replacement, and potential causes can save you time and frustration. By following this guide, you can effectively troubleshoot and resolve OBD2 fuse issues and keep your NV200’s diagnostic capabilities in top shape. Remember to always consult your owner’s manual for specific fuse locations and ratings for your 2014 Nissan NV200. If you continue to experience issues with blown fuses, it’s recommended to consult a qualified automotive electrician to diagnose and repair any underlying electrical problems.