OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN Review: The Budget Tinkerer’s Double-Edged Sword

There’s a particular kind of frustration that only a modern vehicle owner knows. It’s the feeling of knowing your car—the one you paid thousands for—has capabilities locked away behind cryptic lines of code. For me, it was the infuriating “double honk” on my Ford F-150 every time I got out with the key while the engine was running. It’s a minor annoyance, but it’s my truck, and I wanted it gone. I also wanted to enable “Bambi Mode” to keep my fog lights on with the high beams for better visibility on dark country roads. The dealership quoted me an absurd amount for what amounted to a few minutes of programming. This sent me down the rabbit hole of DIY vehicle modification, a world where the right tool isn’t just helpful—it’s everything. Failing to find a reliable, affordable solution means either living with the annoyances or risking a costly trip to the service center. That’s the exact problem the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN promises to solve.

What to Consider Before Buying a Vehicle Diagnostic Scan Tool

A Code Readers & Scan Tools is more than just an item; it’s a key solution for bridging the communication gap between you and your vehicle’s complex network of computers. In an era where a car has more processing power than early spacecraft, these tools are the modern mechanic’s stethoscope. They translate the silent, digital language of your vehicle’s On-Board Diagnostics (OBD2) port into actionable information. The primary benefit is empowerment. You can diagnose a check engine light yourself, saving hundreds on diagnostic fees. More advanced tools, like the one we’re reviewing, allow you to access different vehicle modules to customize features, perform system tests, and truly personalize your driving experience. It’s the difference between being a passive driver and an engaged, informed owner who has control over their machine.

The ideal customer for this type of product is a hands-on vehicle owner, a DIY enthusiast, or a budget-conscious tinkerer who is comfortable working with a laptop and software to modify their Ford, Lincoln, Mazda, or Mercury vehicle. They are looking to perform specific tasks like clearing fault codes, activating hidden features, or enabling newly installed hardware like a trailer brake controller. However, this type of scanner might not be suitable for professional mechanics who need guaranteed reliability and official software support, or for someone who is not tech-savvy and would be intimidated by the process of installing drivers and configuring software. Likewise, if you own a vehicle brand outside the Ford family (like a Volkswagen or Toyota), a brand-specific tool or a more universal, high-end scanner would be a much better investment.

Before investing, consider these crucial points in detail:

• Vehicle and Software Compatibility: This is the single most important factor. Does the scanner support your specific vehicle make, model, and year? For tools like this, software is just as critical. Check if it’s compatible with powerful programs like FORScan, FoCCCus, or ELMconfig, and ensure your computer’s operating system (typically Windows for these devices) is supported. Mismatched compatibility leads to a useless plastic brick.
• Protocol and Network Access: A standard OBD2 reader only accesses the engine control unit (ECU). To modify vehicle features, you need access to multiple networks. For Ford vehicles, this means High-Speed CAN (HS-CAN) and Medium-Speed CAN (MS-CAN). A scanner must have the hardware, like the physical toggle switch on the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN, to access these separate networks where features like body controls, lighting, and infotainment reside.
• Connection Stability and Speed: The connection between your scanner and laptop is the lifeline during programming. A wired USB connection, like the one this device uses, is almost always more stable and reliable than Bluetooth or Wi-Fi, which can drop out and potentially “brick” a vehicle module mid-write. While wireless is convenient for simple code reading, for programming, wired is king.
• Hardware Authenticity and Support: The market is flooded with “clone” ELM327 chips that can be unreliable. While this device is advertised as V1.5 hardware, user feedback and software warnings suggest it may be a clone. This can result in limited functionality and a lack of official support from software developers like FORScan. You’re often trading a low price for a higher risk and a lack of a warranty or customer service.

Understanding these elements is key to choosing a tool that will empower you, not frustrate you. The OBDResource scanner positions itself as a powerful, low-cost entry point, but as we’ll see, that value comes with significant caveats.

While the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN is an intriguing choice for its price, it’s always wise to see how it stacks up against the competition. For a broader look at all the top models, we highly recommend checking out our complete, in-depth guide:

First Impressions: A Telltale Rattle and a Questionable CD

Upon unboxing the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN, the first thing we noticed was its lightweight, unassuming plastic construction. It feels like a budget tool, which, to be fair, it is. More concerning, however, was a faint rattling sound when we shook the device, a sentiment echoed by several users who described it as sounding “like a baby rattle.” This doesn’t inspire confidence in the internal soldering or overall build quality. The unit itself is simple: a standard OBD2 plug on one end, a generous USB cable on the other, and a small, functional toggle switch to flip between the HS-CAN and MS-CAN networks. The most anachronistic and alarming item in the box was a mini-CD for the drivers. In 2024, not only is an optical disc outdated, but the included warning sticker asking us to disable our antivirus software because the files might be “flagged as a virus” is a massive red flag. We immediately decided to source drivers online rather than risk using the included disc, a step we highly recommend to any buyer. Compared to premium tools like those from OBDLink, which feel solid and direct you to professional websites for software, the initial impression here is one of cutting every possible corner to hit a low price point. It’s a tool that looks and feels like a gamble right out of the box, but one that could pay off if its core function works as advertised. You can see its full feature set and user reviews online.

Deep Dive: A Tale of Software Woes and Programming Triumphs

The true measure of a diagnostic tool isn’t its plastic shell, but its ability to reliably communicate with a vehicle. With the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN, this journey is a rollercoaster of frustrating setup, compatibility warnings, and ultimately, the sweet taste of success for specific tasks. It’s a device that demands patience but can deliver results if you know its limits.

Driver Roulette and the Initial Connection Headache

Our first challenge was getting the scanner to talk to our Windows laptop. As mentioned, we immediately discarded the suspicious mini-CD. This forced us into what we call “driver roulette”—the hunt for the correct VCP (Virtual COM Port) drivers online. This process can be a significant hurdle for non-technical users. After some searching, we located the common CH340 drivers that many of these clone adapters use, installed them, and plugged in the device. Windows Device Manager successfully recognized it on a COM port, the first small victory. The next step was connecting it to FORScan, the powerful software of choice for Ford owners. This is where the tool’s primary weakness becomes apparent. Upon initiating the connection, FORScan immediately threw up a warning: “This adapter is NOT recommended for this car – some FORScan functions may not be available or not work correctly. Please use the recommended adapter.” This is a critical piece of information. The developers of FORScan know which hardware is stable and reliable, and this isn’t on their list. This warning, reported by countless users, sets the tone for the entire experience: proceed with caution. We found that while it connected, the data transfer rate was noticeably slower than with officially recommended adapters.

Unlocking Hidden Features: The Ford Tinkerer’s Dream Scenario

Despite the warnings, we pushed forward to the main event: programming. Our goal was to disable the double honk, enable Bambi Mode, and change the boot-up splash screen on our F-150’s infotainment system. This is where the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN actually delivered. Following a trusted online guide, we connected to the Body Control Module (BCM). FORScan prompted us to flip the physical switch on the adapter to access the MS-CAN network, which worked flawlessly. We carefully modified the necessary lines of code—a single digit change here, another there—and wrote the changes back to the module. After a few tense moments and a dashboard that lit up like a Christmas tree (which is normal during a BCM write), the process completed successfully. A quick test confirmed it: no more double honk, and our fog lights now stayed on with the high beams. We felt, as one user put it, “like a pro technician.” We were also able to help a friend disable the Ford MyKey feature on a 2014 Escape that had her limited to 80 mph, saving her a trip to the dealer. For these specific, popular, and well-documented modifications, the tool worked exactly as hoped, providing immense value for its tiny price tag. It’s a feature that truly sets it apart for those willing to take the risk, and you can investigate these capabilities further.

The Compatibility Conundrum and The Risk of a “Brick”

So, if it works, why the warnings from FORScan and the mixed user reviews? The answer lies in consistency and risk. The ELM327 interface was originally designed by ELM Electronics, but the market is now dominated by cheaper, reverse-engineered “clone” chips. These clones often don’t implement the full command set of the original, leading to errors, slow communication speeds, and instability. While modifying a setting like the double honk is a low-risk write, attempting a more critical procedure like a firmware update or programming a new key can be disastrous. If the connection drops or a command is misinterpreted by the clone chip mid-write, it can corrupt the module’s software, effectively “bricking” it and turning your car into a very large paperweight. This is why many experienced users and FORScan’s developers explicitly recommend against these adapters. We encountered “Service procedure has been interrupted” errors on several attempts to write less common parameters, mirroring the experience of other users. The adapter also failed to read certain modules, like the Driver Door Module (DDM) on one test vehicle. This inconsistency is the price you pay for the low cost; it might work for 9 out of 10 things, but that 10th failure could be catastrophic. You are truly gambling that the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN is ‘good enough’ for your specific task.

Beyond the Ford Family: A Disappointing Generalist

While the product is marketed for Ford-family vehicles, we wanted to test its capabilities as a generic OBD2 code reader on other brands. We connected it to a Toyota Camry with a known check engine light for an emissions sensor. Using generic OBD2 software like Scanmaster, the adapter struggled to connect reliably. When it finally did, it was slow to read the code and provided only the most basic information. One user confirmed this, stating, “I needed it for a Toyota, but none of that worked at all.” This test confirms that the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN is a one-trick pony. It is not a good choice for a general-purpose scanner to keep in your glovebox for diagnosing issues across different family vehicles. Its primary, and perhaps only, real value is in its ability to interface with the specific MS-CAN and HS-CAN networks on supported Ford, Lincoln, and Mazda vehicles for modification purposes.

What Other Users Are Saying

Scouring user feedback reveals a deeply divided opinion that perfectly matches our findings. The sentiment is a mix of relief and frustration. On the positive side, many users report success with specific, high-value tasks. One happy customer noted, “Awesome product, I able to modify some features of my F-150 2020. Like the Radio Bootup Splash screen, The Fog Lamps with High Beams and the most important for me the auto stop/start feature.” Another user successfully “worked great to enable the trailer brake control module I installed in my 2017 F-150.” These reviews highlight that for popular, well-documented mods, the tool often gets the job done at a fraction of the cost of premium alternatives.

However, the negative feedback is equally telling and centers on the exact issues we encountered. Numerous users were put off by the FORScan warning, with one stating it “complains about missing functions” and another confirming, “it finally connected, only to tell me that ‘This adapter is NOT recommended…'” The shoddy build quality and driver issues were also common complaints, from the “baby rattle” sound to the infamous mini-CD containing a file that “did in fact find a virus.” The most critical feedback comes from users who experienced functional failures: “Don’t believe that the adapter read all modules. I have DDM and PDM missing,” which directly mirrors our own test results. This collection of feedback paints a clear picture: the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN is a gamble that pays off for some but fails for others.

Head-to-Head: How Does It Compare to the Alternatives?

The OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN exists in a crowded market. While its price is its main attraction, understanding what you gain by spending a little more is crucial for making an informed decision.

1. ANCEL VD700 OBD2 Diagnostic Scanner for VAG Vehicles

The ANCEL VD700 serves as a perfect example of a brand-specific diagnostic tool. While the OBDResource scanner is a niche tool for the Ford family, the VD700 is its equivalent for the Volkswagen Auto Group (VAG), covering VW, Audi, Skoda, and Seat. It’s an all-in-one handheld unit, meaning you don’t need a separate laptop or software. It offers deep diagnostic capabilities, including advanced functions like battery registration and EPB reset, which are far beyond what a generic ELM327 adapter can do. If you are a VAG vehicle owner, the ANCEL VD700 is unequivocally the better choice, offering tailored, reliable functionality. It’s not a direct competitor for a Ford owner, but it illustrates the benefit of buying a tool designed specifically for your vehicle’s ecosystem.

2. OBDLink MX+ OBD2 Bluetooth Scanner

The OBDLink MX+ represents the premium, wireless end of the spectrum. It is a massive leap in quality, reliability, and price. It uses Bluetooth, works seamlessly with iOS, Android, and Windows, and is officially recommended by the developers of many apps, including FORScan (with limitations). Its connection speed is exponentially faster and more secure than clone adapters, drastically reducing the risk of errors during programming. It also provides access to proprietary networks for brands like GM and Toyota (via in-app purchases), making it a far more versatile tool. For the user who wants the best-in-class performance, multi-vehicle support, and the convenience of a wireless connection without compromising stability, the MX+ is the superior choice, though its cost is significantly higher.

3. OBDLink EX OBD Adapter

The OBDLink EX is the most direct and formidable competitor to the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN. Crucially, the OBDLink EX is an adapter *specifically designed for and officially recommended by FORScan*. It offers a stable, wired USB connection and is guaranteed to be 100% compatible with all of FORScan’s features. It automatically handles the HS-CAN/MS-CAN switching, so you don’t have to manually flip a toggle. While it costs more than the OBDResource model, that extra money buys you peace of mind, guaranteed performance, official support, and dramatically lower risk of bricking a module. For any user who is serious about modifying their Ford and plans to use FORScan for more than just one or two simple tweaks, the OBDLink EX is, without question, the smarter and safer investment.

Our Final Verdict: A Worthwhile Gamble for the Cautious Hobbyist

After extensive testing and analysis, our verdict on the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN is a qualified, cautious recommendation. This is not a tool for the professional, the impatient, or the risk-averse. The questionable build quality, the hazardous driver CD, and the explicit warnings from FORScan are all serious red flags that cannot be ignored. It is an imperfect, flawed product born from the world of clone hardware.

However, it has one redeeming quality that is impossible to overlook: it is incredibly cheap, and for a specific set of popular modifications on Ford-family vehicles, it works. If your sole goal is to disable a specific annoyance or enable a feature like Bambi Mode, and you are willing to navigate the setup hurdles and accept the small but real risk, this tool can provide an enormous return on its meager investment. It is the definition of a high-risk, high-reward budget tool. For those on the fence, we recommend the OBDLink EX as a far safer, more reliable upgrade. But if you’re a hobbyist on a shoestring budget who understands the risks involved, the OBDResource ELM327 USB OBD2 Scanner MS-CAN HS-CAN might just be the gamble that pays off, finally giving you control over your vehicle’s hidden settings.