4 Systems OBD2 Scanner Review: Ultimate 4-System Diagnostic Tool for DIYers and Professionals

Have you ever faced the frustration of a mysterious check engine light or ABS warning on your dashboard, without knowing where to start? If you’re like me, finding the right diagnostic tool can feel overwhelming—especially if you want something that offers more than just basic engine codes. That’s where the 4 Systems OBD2 Scanner UR600 steps in.

This OBD2 scanner is designed to give you a comprehensive look into your vehicle’s ABS, SRS, engine, and transmission systems with bidirectional testing and an impressive 49 maintenance services. Whether you’re a home mechanic, a DIY enthusiast, or a professional technician, this device promises to deliver detailed diagnostics without the hefty dealership price tag.

In this review, I’ll walk you through everything you need to know about the 4 Systems OBD2 Scanner — its capabilities, real-world performance, who it’s best for, and whether it’s worth your investment.

What is the 4 Systems OBD2 Scanner?

The 4 Systems OBD2 Scanner, model UR600, is a mid-tier automotive diagnostic tool that provides extensive vehicle diagnostics beyond the typical engine trouble codes. For $218.98, it supports scanning and bidirectional testing on four critical vehicle systems: ABS (Anti-lock Braking System), SRS (Supplemental Restraint System or airbags), Engine, and Transmission.

Unlike simpler scanners that only read engine codes, this device offers access to 49 different maintenance services, allowing users to perform tasks like oil resets, battery management system tests, throttle adaptations, and even fuel pump tests. It also supports printing diagnostic reports, making it easy to share findings with your mechanic or keep records for your vehicle maintenance.

With compatibility spanning over 70 vehicle brands and 10,000+ models manufactured after 1996, it covers a wide range of gasoline and diesel 12V vehicles including passenger cars, pickups, SUVs, and light-duty trucks. However, some features and compatibility depend on your vehicle’s make and year, so the manufacturer recommends providing your VIN for a compatibility check.

The 4 Systems OBD2 Scanner is intended for DIYers serious about vehicle maintenance, home mechanics wanting a reliable tool, and professional technicians who need a budget-friendly scanner with dealership-level functions.

Key Features of 4 Systems OBD2 Scanner

Ultimate 4-System Diagnostic Coverage with Bidirectional Test

This scanner doesn’t just read codes; it actively interacts with ABS, SRS, Engine, and Transmission systems. With bidirectional testing, you can send commands to components like fuel pumps, solenoid valves, and engine limiters while monitoring sensor responses in real-time. This helps catch hidden issues that don’t trigger warning lights, making troubleshooting much more precise and effective.

49 Built-in Maintenance Services

Offering an impressive 49 service functions, the UR600 covers everything from oil resets and DPF regeneration to battery management, TPMS, clutch tests, and cruise control checks. For anyone who wants to maintain their vehicle without constant shop visits, these services can save time and money by handling routine resets and adaptations yourself.

Wide Vehicle Compatibility

With support for 70+ brands and over 10,000 vehicle models post-1996, the 4 Systems OBD2 Scanner fits most gasoline and diesel 12V cars, SUVs, pickups, and light trucks. It supports multiple OBD protocols such as OBD2, EOBD, JOBD, CAN, and CAN-FD. This broad compatibility makes it versatile for users with multiple vehicles or those servicing different brands.

Diagnostic Report Printing

One standout feature is its ability to print diagnostic reports directly. This is especially useful if you want to bring detailed findings to your mechanic for faster, more accurate repairs or keep a log of your vehicle’s health over time.

Full OBD2 Functions with Live Data and Auto VIN

The scanner provides all standard OBD2 functions, including I/M readiness for emissions testing, DTC lookup, live data streaming in text or waveform graph, and data playback. The Auto VIN feature helps identify your vehicle’s info automatically, though some models may require manual VIN entry.

Support for Diesel and Gasoline Engines

Unlike many basic scanners, the UR600 supports diesel engines (12V only), expanding its usability for pickup trucks and light-duty diesel vehicles. This makes it a valuable tool for users with diesel-powered cars or trucks.

Simple Interface with Advanced Capabilities

While the scanner packs advanced features like bidirectional control and multiple services, its interface is designed for straightforward navigation, enabling both beginners and experts to access detailed diagnostics with ease.

How Does 4 Systems OBD2 Scanner Perform?

Diagnosing ABS and SRS Systems

In my hands-on testing, the ABS and SRS diagnostics were thorough. The bidirectional test allowed me to activate ABS solenoids and monitor airbag readiness live, which is far beyond what basic code readers offer. This helped me verify the health of these safety-critical systems without guesswork.

Engine and Transmission Fault Detection

The engine code reading was fast and accurate across several test vehicles, providing detailed fault descriptions and live sensor data. Transmission diagnostics also performed well, with the ability to run solenoid tests and monitor shift patterns. This gave me confidence in identifying transmission issues early.

Executing Maintenance Services

I used the oil reset and battery management system functions on a few cars. While some resets required exact vehicle matching for success, most routine services worked as advertised. The DPF regeneration and TPMS resets were particularly useful for keeping older vehicles in good running order.

Live Data and Report Printing

The live data display is clear and customizable, showing real-time sensor outputs that help diagnose intermittent problems. Printing diagnostic reports was straightforward and quick, making it easy to hand over detailed info to my local mechanic.

Comparison to Expectations

Overall, the scanner met or exceeded my expectations for a mid-range tool priced under $250. While it didn’t unlock every advanced feature found in premium dealership tools, it offers a robust feature set that’s rare in this price category. For the price, it’s a reliable scanner with extensive system coverage.

Pros and Cons of 4 Systems OBD2 Scanner

• ✅ Comprehensive 4-system diagnostics with true bidirectional control
• ✅ 49 maintenance services covering a wide range of vehicle needs
• ✅ Broad compatibility with 70+ brands and 10,000+ vehicles
• ✅ Supports both gasoline and diesel 12V vehicles
• ✅ Diagnostic report printing feature adds professional usability
• ✅ Live data streaming with waveform graphs for detailed analysis
• ✅ Easy to use interface suitable for DIYers and pros

• ❌ Does not scan all vehicle modules simultaneously—requires manual selection of system to test
• ❌ Some advanced functions (e.g., FCA models) need additional adapter cables
• ❌ Occasional limitations in resetting codes on higher-end or luxury vehicles
• ❌ Auto VIN does not work on all vehicles; manual entry sometimes needed
• ❌ Update process required for full functionality, which may be challenging for non-tech-savvy users

What Customers Are Saying About 4 Systems OBD2 Scanner

Customer Review: “I got this OBD2 reader as a step up from my prior small bluetooth OBD2 dongle but I have found this scan tool to be better suited for someone familiar with the more advanced features found in this class of scanner. To illustrate, my older dongle can scan for all available vehicle computers and control units in one pass and lets me pick from the list to do diagnostics. This scanner doesn’t do that, it only looks at the component you tell it to look at. That’s kind of tedious when I just want a quick overview.”

Customer Review: “Have to update the scanner to have it working right very useful take back my bad review definitely 5 stars.”

Customer Review: “This scanner is decent for the money. It’s not quite good enough to reset my Land Rover oil change code, which was a little disappointing, but overall it works better than a nice one I picked up from Harbor Freight. It reads engine, transmission, ABS, and SRS systems well, and the live data features are handy. For the price point, it’s a solid tool to have on hand — just don’t expect it to handle every single function on higher-end vehicles.”

Is 4 Systems OBD2 Scanner Right for You?

The 4 Systems OBD2 Scanner is ideal if you:

• 🎯 Are a home mechanic or DIYer looking for a reliable scanner with advanced features to maintain and troubleshoot your vehicle.
• 🎯 Work as a professional technician or in a small auto shop and need a cost-effective tool that covers ABS, SRS, engine, and transmission diagnostics.
• 🎯 Own multiple vehicles across different brands and want broad compatibility in one device.
• 🎯 Drive older cars and want to perform routine maintenance without frequent costly trips to the dealer.

However, you might want to skip this scanner if:

• 💡 You require a scanner that automatically scans all control modules simultaneously for quick diagnostics.
• 💡 You own very new or luxury vehicles with specialized systems that may need proprietary tools or additional adapters.
• 💡 You prefer a simple, entry-level code reader without advanced bidirectional or maintenance service features.

Is 4 Systems OBD2 Scanner Worth the Price?

At $218.98, the 4 Systems OBD2 Scanner sits in the mid-range price segment of automotive scanners. Compared to basic OBD2 readers under $50, it offers far more advanced capabilities, especially with bidirectional control and 49 maintenance services. On the other hand, high-end professional scanners can cost upwards of $500 to $1,000 but may provide more brand-specific functions and simultaneous multi-system scans.

Given its wide compatibility, extensive features, and ability to print diagnostic reports, this scanner delivers solid long-term value. For DIYers who want to save money on repairs and professionals who need a budget-friendly tool, it strikes a practical balance between cost and capability.

Frequently Asked Questions

Q: Will the 4 Systems OBD2 Scanner work on diesel vehicles?

A: Yes, it supports 12V diesel engines, making it compatible with many light-duty diesel trucks and SUVs, but only for 12V systems.

Q: Can I use this scanner on vehicles made before 1996?

A: No, the scanner supports OBDII-equipped vehicles built after 1996. Older vehicles without OBDII protocols are not compatible.

Q: Does the scanner require updates?

A: Yes, updating the scanner firmware is necessary to maintain compatibility and access new features. The process is done via USB connection to a PC.

Q: Can I reset all fault codes with this scanner?

A: You can clear fault codes only after the underlying issues have been fixed. Some advanced codes on luxury or newer vehicles may not reset due to manufacturer restrictions.

Q: Is the diagnostic report printing wireless?

A: The scanner supports printing via USB connection to a compatible printer. Wireless printing is not supported.

Q: Do I need extra cables for certain vehicles?

A: For some FCA models and certain advanced functions, an additional adapter cable may be required. Contact the seller to confirm and obtain necessary accessories.

Q: Does the scanner support live data graphing?

A: Yes, it shows live data both as text and in a 4-in-1 merged waveform graph, helpful for detailed diagnostics.

Q: What if Auto VIN doesn’t detect my vehicle?

A: You can manually enter your vehicle’s VIN into the scanner to ensure accurate diagnostics.

Q: Can I use this scanner for emissions readiness tests?

A: Yes, the I/M Readiness function helps you check if your vehicle is ready for annual emissions testing.

Q: Is this scanner suitable for beginners?

A: While designed with ease of use in mind, some advanced features may require basic automotive knowledge to fully utilize.

Final Verdict: Should You Buy 4 Systems OBD2 Scanner?

Rating: ★★★★☆ (4.5/5)

After thoroughly testing the 4 Systems OBD2 Scanner, I can confidently say it’s a highly capable diagnostic tool that offers excellent value for its price. The inclusion of 4-system bidirectional testing, 49 maintenance services, and broad vehicle compatibility sets it apart from many scanners in its class.

While it’s not without limitations—such as not scanning all modules simultaneously and occasional compatibility quirks—the overall performance and feature set make it a smart choice for serious DIYers and small shop technicians. The ability to print diagnostic reports and monitor live data adds a professional touch that’s rare at this price point.

If you want a reliable, versatile tool to help you maintain your vehicle, troubleshoot complex issues, and avoid costly repairs, the 4 Systems OBD2 Scanner is definitely worth considering.

Conclusion

In summary, the 4 Systems OBD2 Scanner UR600 is a robust automotive diagnostic tool that bridges the gap between simple code readers and expensive dealer-level scanners. Its comprehensive system coverage, extensive maintenance functions, and user-friendly design make it a valuable addition to any vehicle owner’s toolkit.

Whether you want to diagnose ABS faults, reset oil lights, or monitor live sensor data, this scanner offers the features you need without overwhelming complexity. For under $220, it delivers a level of control and insight that can save you money and headaches over time.

If you’re ready to take charge of your vehicle’s health and maintenance, I recommend giving the 4 Systems OBD2 Scanner a try. It just might be the partner you need for smarter, safer driving.