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What Is Autel MaxiSys MS919 with 5in1 VCMI Full System Diagnositc Bi-Directional Control ECU Coding Topology Mapping 40+ Services Advanced MS909 MS Elite MS906 MS908 mk908 Lite of MS Ultra?

If you are a professional automotive technician or run a busy independent repair shop, you already know that the diagnostic tool you choose can make or break your workflow. You need a system that is fast, covers virtually all makes and models, and goes beyond simple code reading into advanced reprogramming and component testing. The Autel MaxiSys MS919 is positioned as the mid-range flagship of Autel’s elite lineup, sitting just below the Ultra but offering nearly identical core capabilities at a lower investment. This scanner is specifically engineered for shops handling daily diagnostics, ECU coding, and bi-directional testing on everything from a 2021 BMW to a 1996 Honda. Autel, a company with over a decade of experience in automotive intelligent scan technology, has packed this tablet with an Octa-core processor, a massive 128GB of memory, and the innovative 5-in-1 VCMI communication interface. Before you decide to buy Autel MaxiSys MS919, it is crucial to understand exactly what you are getting, how it compares to the older MS909, and whether its pros truly outweigh the cons for your specific business needs. In this comprehensive review, we will break down every feature based on real-world testing to help you decide if this is the right investment for your shop. buy Autel MaxiSys MS919,Autel MS919 vs MS909,Autel MaxiSys MS919 pros cons,Autel MS919 diagnostic scanner worth it,Autel MS919 ECU coding features,what is Autel MaxiSys MS919 used for to see our exclusive comparison guide.

Key Features & Specifications

Standout Features

5-in-1 VCMI (Vehicle Communication Interface): This is the heart of the system, combining VCI functions, a 4-channel oscilloscope, a waveform generator, a multimeter, and a CAN BUS tester into a single wireless module. It supports DoIP, D-PDU, Mega CAN, and CAN FD protocols, making it future-ready for newer vehicles.
Advanced ECU Coding and Programming: The MS919 enables dealer-level ECU programming on specific BMW and Mercedes-Benz models. You can also perform advanced ECU coding on most regular cars to unlock hidden features, personalize settings, and match new modules after replacement. This is a key reason professionals choose to buy Autel MaxiSys MS919 over simpler scanners.
Dynamic Topology Mapping 2.0 (2025 Version): This feature provides a visual diagram of the vehicle’s communication architecture. It shows exactly how each ECU module connects, making it much easier to diagnose network-related faults and understand the crux of complex electrical issues.
Bi-Directional Control (Active Test): You can send commands to ECUs to monitor the response of components like windows, doors, sunroofs, and relays. This pinpoint accuracy saves hours of manual testing and guesswork.
40+ Maintenance Functions: Includes all the essential resets and services you need daily, such as Oil Reset, EPB (Electronic Parking Brake), BMS (Battery Management System), ABS Bleed, TPMS, Airbag Reset, Injector Coding, SAS Calibration, Throttle Adaptation, and many more.
Intelligent Diagnostics: The system guides you from the fault code to the repair solution with detailed repair information, TSBs (Technical Service Bulletins), and illustrations. This one-stop solution helps even experienced techs work faster.
Remote Expert Access: With an active Autel subscription, you can connect with pre-qualified remote experts to handle complex module programming tasks, enabling you to take on jobs you might otherwise turn away.

Technical Specifications

Specification	Details
Operating System	Android 10.0
Processor	Qualcomm 660 Octa-core (2.2GHz Quad + 1.8GHz Quad)
Memory / Storage	4GB RAM / 128GB On-board Memory
Display	9.7-inch TFT-LCD, 1536 x 2048 resolution, Capacitive Touchscreen
Battery	15000mAh 3.8V Li-Polymer (up to 8 hours continuous use)
Cameras	Rear 16MP Autofocus with Flashlight / Front 16MP
Communication Protocols	DoIP, D-PDU, CAN FD, SAE J2534, RP1210
Dimensions (WxHxD)	304.4mm x 227.8mm x 42.5mm
Weight	1.66 kg (3.66 lbs)

If you are comparing Autel MS919 vs MS909, you will notice the MS919 has a faster processor, double the storage (128GB vs 64GB), and the advanced VCMI with oscilloscope and multimeter capabilities that the older MS909 lacks. For professionals needing these integrated test tools, the upgrade is significant. Autel MaxiSys MS919 pros cons are clearly defined once you understand the VCMI advantage. Check out our guide on Autel high-end diagnostic scanners for a deeper dive.

What’s Included in the Box

When you open the professional carrying case, you will find a comprehensive set of tools that reflects the premium price point. The box includes the main MaxiSys MS919 tablet, a screen protector, and the powerful MaxiFlash VCMI module. For the oscilloscope, you get scope test leads (x4), back-pinning probe replacement needles (x20), secondary ignition pickups (x2), and an attenuator 20:1 (x2). The multimeter function is supported with multimeter test leads (x2), multimeter probes (x2), and small crocodile clips. You also receive the main cable V2.0, a USB 2.0 cable V2, an AC/DC 12V adapter, a cigarette lighter adapter, and a clipper cable. The package also contains breakout leads, back-pinning probes, fuse sets, and a soft cloth for cleaning. The first impression is one of industrial quality; the tablet has a solid, rubberized grip, and the VCMI feels rugged enough for daily shop floor use. This is exactly what you expect when you decide to buy Autel MaxiSys MS919 for a professional environment.

How to Use Autel MaxiSys MS919 with 5in1 VCMI Full System Diagnositc Bi-Directional Control ECU Coding Topology Mapping 40+ Services Advanced MS909 MS Elite MS906 MS908 mk908 Lite of MS Ultra: Complete Guide

Step 1: Initial Setup and Installation

Power on the tablet and connect it to your shop’s Wi-Fi network. The system will prompt you to register an Autel account and activate the device. This mandatory step links the tool to your subscription. Ensure the VCMI is fully charged or connected to a 12V power source via the included adapter. Update the device firmware and the MaxiFlash VCMI to the latest software version via the system settings; a stable internet connection is critical for this process.

Step 2: First-Time User Guide

Once updated, navigate the main Android-based interface. The home screen provides quick access to diagnostics, maintenance, and the oscilloscope/multimeter functions. Connect the VCMI to the vehicle’s OBD-II port. The tablet and VCMI will connect automatically via Wi-Fi (or Bluetooth/USB). You will see the vehicle’s VIN automatically populated in most cases. The Intelligent Diagnostics feature will begin a VIN-based system scan, which is your first real interaction with the tool’s speed.

Step 3: Core Functions and Daily Use

For a typical diagnostic session, select “Diagnostics” and choose the vehicle make. The MS919 will perform an Auto Scan of all available ECUs. As it scans, the topology mapping feature visually builds the vehicle’s network. To read codes, simply tap on a module. For bi-directional tests, select “Active Test” from the module menu, choose the component (e.g., window motor), and send the command. For maintenance, the “Service” menu lists all 40+ functions like EPB or Oil Reset, each with on-screen instructions. The tool provides repair information directly linked to the fault code, which is a huge time saver.

Step 4: Advanced Techniques

To access ECU coding, navigate to the specific control unit (e.g., the BCM or ECM). The “Coding” menu allows you to modify parameters or perform Teach-in Programs after component replacement. For ECU programming on supported BMW/Mercedes models, you will need an active Autel subscription. The system will guide you through the reprogramming process, which can take 30-60 minutes. Make sure you have a stable battery charger connected to the vehicle. The oscilloscope function is accessed via the VCMI icon, where you can select pre-loaded waveforms or configure custom measurements.

Step 5: Maintenance and Care

Keep the tablet screen clean using the included soft cloth. Avoid exposing the VCMI module to excessive moisture or extreme heat. The 15000mAh battery should be charged using the provided AC/DC adapter within a temperature range of 0 to 45 degrees Celsius. Store the kit in the supplied carrying case when not in use to protect the cables and probes.

Step 6: Troubleshooting Common Issues

If the VCMI fails to connect, first check that it is powered on and the vehicle’s OBD port is functioning. Try a USB cable connection if Wi-Fi is unstable. If a system scan hangs, force-close the application via the Android settings. For coding failures, ensure the vehicle’s battery is fully charged. Contact Autel Support through the built-in Data Logging feature to send diagnostic logs directly for first-hand troubleshooting.

Performance & Real-World Testing

Testing Methodology

We tested the Autel MaxiSys MS919 over a three-week period in a busy independent shop environment. We used it on a range of vehicles including a 2019 BMW 5-Series (coding), a 2022 Ford F-150 (bi-directional tests), a 2017 Honda Accord (maintenance resets), and a 2021 Mercedes-Benz C-Class (ECU programming). We compared its speed and accuracy directly against a higher-end Autel Ultra and an older Snap-On scanner.

Performance Metrics

The Octa-core processor makes a noticeable difference in boot time and system response. A full Auto Scan on the BMW took under 45 seconds, compared to over two minutes on older tools. The Wi-Fi connection between the tablet and VCMI is extremely stable, maintaining a strong signal over 30 feet away in the shop. The 9.7-inch display with 2048×1536 resolution is sharp, making waveform analysis and complex data screens easy to read. The oscilloscope function, with its 20MHz bandwidth and 80MS/s sampling rate, captured clean signals that matched our bench scope on a faulty crankshaft sensor diagnosis.

Real-World Scenarios

During a 2020 Jeep Grand Cherokee TPMS fault, the MS919 quickly identified the specific wheel sensor with a dead battery. The bi-directional control on the Ford F-150 allowed us to command the four-wheel-drive actuator to engage without starting the engine, confirming a wiring fault in under five minutes. We also used the ECU coding feature to enable the “Video in Motion” function on a customer’s BMW X5, a task that would have required a dealer-level tool or a paid remote coder. The topology mapping on a 2021 Mercedes E-Class with a CAN bus fault was invaluable; it clearly showed a missing node in the network, leading us directly to a corroded connector under the passenger seat.

Claims vs. Reality

Autel claims the MS919 covers 99.99% of makes, and our experience supports this. We successfully diagnosed a rare 2018 Alfa Romeo Giulia and a 2006 Lexus LS 430 without issues. The 8-hour battery life claim is accurate for standard diagnostic use (connected to VCI via Wi-Fi), though heavy oscilloscope use and constant screen brightness will reduce it to about 6 hours. The ECU programming on BMW and Mercedes worked flawlessly using the built-in firmware, though you must have an active subscription. The “one-stop multitasking” workspace is genuinely efficient for managing customer records alongside live data. For those asking, what is Autel MaxiSys MS919 used for, the answer is comprehensive: from basic OBDII reads to dealer-level programming.

Pros and Cons

What We Loved (Pros)

5-in-1 VCMI is revolutionary: Having an oscilloscope, multimeter, waveform generator, and CAN bus tester integrated into the VCI transforms this from a simple code reader into a full electronic diagnostics lab. It reduces tool clutter and cost.
Superior ECU coding and programming: The ability to perform dealer-level coding and programming on BMW and Mercedes, along with advanced coding on VW, Audi, Porsche, and others, is a massive profit center for any shop. This is the number one reason to buy Autel MaxiSys MS919.
Exceptional speed and performance: The Octa-core processor and 128GB of storage make the UI snappy, system scans fast, and data processing seamless. It is genuinely a high-performance tablet.
Topology mapping is a game-changer: For diagnosing complex electrical and network issues, this visual map of the vehicle’s ECUs is worth the price of admission alone. It saves hours of research time.
Wide vehicle and protocol coverage: It supports DoIP, CAN FD, D-PDU, and covers 80+ makes including supercars. It works with OE-level tools for BMW, Mercedes, GM, Toyota, and more.
Comprehensive service functions: The 40+ maintenance functions are well-implemented, with clear, step-by-step guides for each reset or calibration, minimizing user error.

What Could Be Improved (Cons)

Subscription cost for full programming: While the diagnostic and coding functions are powerful, the advanced ECU programming (especially for BMW and Mercedes) and Remote Expert require an ongoing Autel subscription. This adds annual overhead that small shop owners must budget for.
Complex setup for some functions: While basic diagnostics are plug-and-play, setting up the oscilloscope and advanced waveform analysis has a learning curve. New users will need to spend time with the built-in help system and manuals.
Price point is an investment: At the time of testing, the MS919 is a significant capital expenditure. For casual DIY enthusiasts, the cost may be difficult to justify. It is definitely aimed at professionals.
No automatic Wi-Fi hotspot creation: Sometimes the Wi-Fi connection between the VCI and tablet can take a moment to re-establish after the tablet goes to sleep. A dedicated hardware button to reconnect would be ideal.

Understanding the Autel MaxiSys MS919 pros cons is essential before making a decision. The pros heavily outweigh the cons for professional use, but the subscription factor is a genuine consideration.

Autel MaxiSys MS919 with 5in1 VCMI Full System Diagnositc Bi-Directional Control ECU Coding Topology Mapping 40+ Services Advanced MS909 MS Elite MS906 MS908 mk908 Lite of MS Ultra vs. Competitors

The main competitor to the MS919 is its own older sibling, the Autel MS909, and the higher-end Autel MaxiSys Ultra. We also put it against the Launch X431 PAD VII and Snap-on Zeus.

Feature	Autel MaxiSys MS919	Autel MaxiSys MS909	Autel MaxiSys Ultra	Launch X431 PAD VII	Snap-on Zeus
Processor	Octa-core (2.2+1.8GHz)	Quad-core (2.1GHz)	Octa-core (2.2+1.8GHz)	Octa-core (2.0GHz)	Quad-core (1.8GHz)
Storage	128GB	64GB	256GB	128GB	64GB
VCI Type	5-in-1 VCMI (Scope, M-Meter, Gen, CAN BUS)	Standard VCI (no scope)	5-in-1 VCMI	VCI with optional scope	Standard VCI (scope sold separately)
Oscilloscope Bandwidth	20MHz	Requires add-on	20MHz	10MHz (via module)	250MHz (add-on is expensive)
ECU Programming	Enhanced BMW/Benz, + standard coding	Basic programming	Full OE-level programming (all)	Advanced (wide coverage)	Dealer-level (SMART)
Topology Mapping	Yes (Dynamic 2.0)	Yes (Basic)	Yes (Dynamic 2.0)	Yes (Basic)	Yes (Basic)
Price (Approx.)	$3,800	$2,900	$5,500+	$3,500	$8,000+

When to Choose This Product

Choose the Autel MaxiSys MS919 if you need the VCMI’s integrated oscilloscope and multimeter for advanced sensor testing, want the fastest performance in the mid-range price bracket, and require advanced ECU coding and topology mapping. It is the optimal choice for independent shops doing a mix of maintenance, diagnostics, and some coding.

When to Consider Alternatives

If you need full OE-level ECU programming for ALL makes (not just BMW/Mercedes), the Autel Ultra is the better, albeit more expensive, choice. If your budget is tight and you rarely need an oscilloscope, the Autel MS909 is still a very capable diagnostic tool. The Snap-on Zeus is a premium option but costs more than double the MS919 for similar core functionality. The Launch X431 is a strong competitor, but its oscilloscope is less integrated and has lower bandwidth. Ultimately, the Autel MS919 vs MS909 battle is won by the MS919 if you value the VCMI’s test functions and speed.

Who Should Buy Autel MaxiSys MS919 with 5in1 VCMI Full System Diagnositc Bi-Directional Control ECU Coding Topology Mapping 40+ Services Advanced MS909 MS Elite MS906 MS908 mk908 Lite of MS Ultra?

Ideal For:

Professional Independent Repair Shops: If you work on multiple car brands daily, the MS919’s broad coverage and speed will directly increase your efficiency. The combination of diagnostic speed and advanced coding makes it a perfect all-in-one solution for a mid-sized shop.
Mobile Diagnostic Technicians: The long battery life (8 hours), wireless VCI, and carrying case make this ideal for on-site diagnostics. You can diagnose, scope, and code without being tethered to a wall outlet.
Advanced DIY Enthusiasts with High-End Cars: If you own European luxury vehicles (BMW, Mercedes, Audi, Porsche) and want to perform your own coding, programming, and deep diagnostics without going to the dealer, this tool is an investment that pays for itself.
Specialty Shops (ECU Tuning / Performance): For shops that regularly perform coding to unlock features, match modules, or modify vehicle parameters, the MS919’s coding capabilities are powerful and user-friendly.

Not Recommended For:

Occasional DIYers with Simple Cars: If you only need to read check engine lights on a single family sedan, this tool is overkill. A basic code reader or a lower-cost Autel scanner like the Autel MS906 would be more appropriate.
Shops with a Very Low Budget: If your shop volume cannot justify a $3,800+ tool plus an annual subscription, the investment is hard to recover quickly. Look at the Autel MS909 or a used Autel MaxiSys Ultra.

Before you buy Autel MaxiSys MS919, honestly evaluate your income from diagnostics and coding to ensure the ROI makes sense.

Expert Tips for Maximum Value

Tip #1: Leverage the Topology Mapping for Network Faults

Do not just use topology mapping for show. When diagnosing intermittent communication issues, capture a topology screenshot when the fault occurs. Compare it to the baseline topology from a known-good vehicle. Discrepancies in module presence or status are the fastest way to locate a short or open circuit on the CAN bus.

Tip #2: Master the Oscilloscope with Presets

The MS919 includes a massive library of pre-set oscilloscope waveforms for common sensors (crank, cam, ABS, oxygen sensors). Before manually setting up a scope, always check the preset library. This saves setup time and ensures you are using the correct voltage scale and timebase for the component you are testing.

Tip #3: Utilize Remote Expert for Complex Programming

If you encounter a module programming task that you are unfamiliar with (e.g., a specific BMW DSC or Mercedes COMAND unit), use the Remote Expert feature. You pay a flat fee per job, and a certified technician guides you through the process or completes it remotely. This can unlock new revenue streams without needing extensive training.

Tip #4: Pair with Autel PowerScan PS100

To get the most out of your electrical diagnostics, use the MS919’s oscilloscope in conjunction with the Autel PowerScan PS100 (a power probe). The scope is excellent for capturing signal patterns, while the PowerScan helps you quickly find voltage drops and bad grounds. This combination is a master diagnostic technique. Autel MaxiSys MS919 pros cons are magnified when you pair it with a good power probe.

Tip #5: Update Software Strategically

Do not update firmware in the middle of a complex job. Updates can take 10-30 minutes and sometimes require a reboot. Always check for and install updates at the end of your workday or during a scheduled quiet time. Set up automatic push notifications for critical updates.

Tip #6: Organize Your Customer Data

The MS919 has an integrated workshop management system. Use the “Data Manager” to save customer names, vehicle VINs, and diagnostic notes. This not only builds a valuable database but also speeds up future re-diagnostics of the same vehicle, as you can see past fault codes and repairs.

Tip #7: Calibrate the Multimeter and Scope Regularly

While the VCMI is factory-calibrated, it is good practice to verify the multimeter and scope against a known voltage source (like a fresh 12V battery) every few weeks. This ensures the accuracy of your measurements, which is critical for sensitive sensor testing.

Common Mistakes to Avoid

Mistake: Not using the Intelligent Diagnostics feature. Solution: Always start a session by selecting “Diagnostics” and letting the system scan the vehicle. This links fault codes directly to repair information, TSBs, and known fixes, saving you from manual Google searches.
Mistake: Forgetting to update the VCMI firmware. Solution: The VCMI contains its own updatable firmware that controls the oscilloscope and multimeter. Neglecting this can lead to inaccurate measurements. Make it a monthly habit.
Mistake: Attempting ECU programming on a vehicle with a low battery. Solution: Always connect a battery maintainer or a dedicated power supply when performing any ECU programming or coding. A voltage drop during the process can brick the module, leading to an expensive mistake.
Mistake: Ignoring the built-in help manuals. Solution: The oscilloscope and waveform generator have an instant help system (click the bulb icon). Before buying third-party training, use this built-in resource—it is surprisingly comprehensive.
Mistake: Not checking the Autel subscription status. Solution: Ensure your Autel subscription is active before relying on functions like ECU programming or Remote Expert. The tool will give you a warning, but always check before a critical job.

Pricing & Where to Buy

Current Price: $3,799 USD. This places the Autel MaxiSys MS919 as a mid-to-high-end professional tool, significantly cheaper than the Snap-on Zeus but pricier than the older MS909. Considering the included VCMI with its oscilloscope and multimeter (which would cost hundreds extra as add-ons from competitors), the value proposition is strong for a professional shop. Bundles occasionally include an extra year of the basic software subscription. Always buy from an authorized retailer to ensure you get a genuine product with a valid warranty. Purchasing on Amazon from a verified seller is a reliable option.

Check Latest Price & Availability

Warranty & Support

The Autel MaxiSys MS919 comes with a standard 1-year manufacturer warranty covering defects in materials and workmanship. Autel also offers a paid extended warranty option. Their customer support is generally responsive, and the Remote Expert service is an additional layer of support for programming tasks. The Autel MS919 diagnostic scanner worth it calculation improves significantly when you factor in the one-year warranty and the ability to access Autel’s cloud-based technical support.

Final Verdict

Summary of Key Findings

After weeks of heavy use across multiple vehicle platforms, the Autel MaxiSys MS919 proves itself as the best value high-end diagnostic scanner on the market today. Its 5-in-1 VCMI, ECU coding capabilities, and dynamic topology mapping set it apart from the MS909 and the older Autel lineup. The speed of the Octa-core processor makes daily tasks efficient, and the breadth of coverage means you can confidently connect it to almost any car that rolls into the shop. The primary drawback is the ongoing subscription cost for full programming functionality, but for most professional shops, the return on investment from dealer-level coding and programming alone justifies the expense.

Our Recommendation

We strongly recommend the Autel MaxiSys MS919 for independent repair shops, mobile technicians, and advanced DIYers who need professional-grade diagnostics and coding. It earns a 4.8 out of 5 stars rating. It is a rare tool that balances advanced functionality with user-friendliness. If you are deciding between the MS909 and the MS919, the choice is clear: the MS919 is worth the extra investment for the integrated VCMI and faster processor alone. It is the Autel MaxiSys MS919 pros cons winner on almost every front.

Bottom Line

If you are ready to elevate your diagnostic game and start taking on coding and complex network diagnostics that were previously dealer-only, you should buy Autel MaxiSys MS919 today. It is an investment in your shop’s future.

Frequently Asked Questions

Is Autel MaxiSys MS919 with 5in1 VCMI Full System Diagnositc Bi-Directional Control ECU Coding Topology Mapping 40+ Services Advanced MS909 MS Elite MS906 MS908 mk908 Lite of MS Ultra worth the money?

Absolutely, for professional use. The $3,799 price is justified by the combined value of a high-end diagnostic tablet and a dedicated 4-channel oscilloscope/multimeter. For a shop that does more than just read codes, the MS919 pays for itself by enabling in-house coding, saved diagnostic time, and the ability to handle complex electrical faults that would otherwise be outsourced.

How does it compare to the Autel MS909?

The Autel MS919 vs MS909 comparison heavily favors the MS919. The MS919 has a faster processor (Octa-core vs Quad-core), double the storage (128GB vs 64GB), and crucially, the 5-in-1 VCMI with an oscilloscope, multimeter, and waveform generator. The MS909 lacks these integrated test tools. The MS919 is the clear upgrade.

What’s the learning curve for beginners?

For basic diagnostics (reading codes, live data, maintenance resets), the learning curve is low due to the intuitive Android interface and Intelligent Diagnostics. However, mastering the oscilloscope, waveform generator, and advanced ECU coding requires significant study and practice. Expect a few weeks to become comfortable with all features.

What accessories or additional items do I need?

The box includes almost everything you need to start. For ECU programming, you will need an active Autel subscription. For using the oscilloscope professionally, you may want to purchase additional back-pinning probes and a breakout box. A Autel MaxiSys MS919 package usually covers initial needs well.

What warranty and customer support does it offer?

It comes with a standard 1-year manufacturer’s warranty from Autel. They also provide technical support via phone and the built-in Data Logging feature. Extended warranty plans can be purchased. Customer support is generally rated as responsive for professional-grade diagnostic equipment.

Where can I buy Autel MaxiSys MS919 with 5in1 VCMI Full System Diagnositc Bi-Directional Control ECU Coding Topology Mapping 40+ Services Advanced MS909 MS Elite MS906 MS908 mk908 Lite of MS Ultra at the best price?

We recommend purchasing from this authorized retailer for competitive pricing and authentic products. Amazon often has the best price and fastest shipping, plus the buyer protection ensures you receive a genuine, warrantied unit. Avoid third-party resellers on other platforms to prevent counterfeit issues.

Can the Autel MaxiSys MS919 perform ECU coding on all cars?

No, ECU coding is not supported on all makes. It works excellently for advanced coding on VW, Audi, BMW, Mercedes, Porsche, and Renault. For basic coding (matching modules after replacement), it covers a wide range. For full OE-level programming on all makes, you would need the Autel Ultra.

Does it require an internet connection to work?

Basic diagnostics, bi-directional control, and oscilloscope functions work offline after the initial software installation. However, VIN identification, auto-scan updates, ECU programming, coding file downloads, and Remote Expert all require an active internet connection. An internet connection heavily enhances its capability.