For car owners and DIY enthusiasts, understanding your vehicle’s health is crucial. The Autel AutoLink Al539 Obd2 Scanner emerges as a versatile and affordable tool that goes beyond basic engine diagnostics. Priced around $75, the AL539 combines the functionalities of an OBD-II scanner with a built-in electrical multimeter, making it a valuable addition to any garage. This review dives deep into the features, performance, and overall value of the Autel AL539, helping you decide if it’s the right diagnostic scanner for your needs.
What Makes the Autel AL539 OBD2 Scanner Stand Out?
In a market saturated with OBD-II scanners, the Autel AL539 distinguishes itself with its unique dual functionality. While primarily designed as an OBD2 scanner for check engine light diagnosis and vehicle system monitoring, it also incorporates a fully functional digital multimeter. This 2-in-1 design allows users to not only read and clear diagnostic trouble codes (DTCs) but also troubleshoot electrical issues within their vehicles.
This combination is particularly useful for diagnosing complex automotive problems that may involve both electronic control units (ECUs) and electrical circuits. Instead of needing separate devices, the AL539 provides a consolidated solution for a range of diagnostic tasks.
Design and Build Quality of the AL539
The Autel AL539 is designed with durability and usability in mind. Its robust construction features a black and red housing with ribbed, soft rubber edges, providing excellent protection against drops and impacts common in workshop environments. Weighing just 10.6 ounces and measuring 6.7 x 3.6 x 1.4 inches, it’s compact enough to store easily in a toolbox while still being substantial enough for comfortable handling.
(Image credit: Autel)
The device includes a 2.8-inch color screen which is clear and easy to read, displaying icon-based software that simplifies navigation. The intuitive interface provides quick access to key functions like Diagnostics, Ready Test, Fault Code Lookup, Data Review, and the Multimeter function. The eight-key interface, centered around a four-way control button, is straightforward to learn and operate, allowing for efficient menu navigation and selection.
For added convenience, the AL539 features a pull-out stand. This allows the scanner to be positioned upright on a fender or workbench, freeing up hands for testing and analysis. The included padded carrying case is spacious enough to hold the scanner, OBD-II cable, and multimeter test leads, keeping everything organized and protected.
(Image credit: Autel)
Performance and Features of the Autel AL539 OBD2 Scanner
The Autel AL539 performs admirably as an automotive diagnostic scanner. While it doesn’t automatically decode vehicle make, model, and year from the ECU, it effectively retrieves the Vehicle Identification Number (VIN). In practical testing, the AL539 quickly connected to test vehicles, a 2014 Audi A4 AllRoad and a 2016 Infiniti Q50, and accurately identified a deliberately introduced fault (a disconnected oil-temperature sensor). Crucially, it successfully cleared the Check Engine Light after the issue was resolved.
One of the key strengths of the AL539 is its ability to display live data. This feature allows users to monitor real-time parameters such as engine speed, coolant temperature, and sensor readings, which is invaluable for diagnosing intermittent or complex issues. The scanner also supports component testing, including cylinder pressure, charging system, and starter diagnostics.
The ReadyTest feature is another user-friendly addition. It performs a series of pre-inspection tests, providing a quick visual indication of vehicle readiness for emissions testing. Green checkmarks indicate systems are okay, while yellow or red icons highlight areas requiring attention.
(Image credit: Tom’s Guide)
The integrated digital multimeter significantly expands the AL539’s capabilities. It allows users to test AC and DC voltage, current flow, and circuit continuity. This is incredibly useful for diagnosing electrical faults, checking fuses, testing relays, and verifying sensor signals. However, it’s important to note that the multimeter function requires the AL539’s internal battery to be charged and cannot be used simultaneously with the OBD-II scanner functions. A USB charging cable is included, but a wall adapter is not.
Ease of Setup and Use
Setting up and using the Autel AL539 is straightforward. Upon plugging the scanner into the vehicle’s OBD-II port, it establishes a connection within about 10 seconds and begins displaying data. The 58-inch cable provides ample reach, even when connecting to vehicles with OBD-II ports located further from the engine bay. It also worked reliably with an extension cord in testing.
(Image credit: Tom’s Guide)
The scanner body includes ports for the OBD-II cable and multimeter test leads, as well as a mini-USB port for firmware updates via PC connection. While the included instruction manual covers basic operations, users may need some time to explore all the features and functionalities of the AL539.
The Autel AutoLink AL539 comes with a one-year warranty.
Verdict: Is the Autel AL539 OBD2 Scanner Right for You?
The Autel AutoLink AL539 OBD2 scanner offers a compelling combination of diagnostic capabilities and value. Its dual functionality as both an OBD-II scanner and a digital multimeter sets it apart from many competitors in its price range. While the multimeter function cannot be used concurrently with the scanner and requires battery charging, it provides a significant advantage for users who need to diagnose both electronic and electrical issues.
Pros:
- 2-in-1 Functionality: Combines OBD-II scanner and multimeter.
- Affordable Price: Priced competitively around $75.
- Durable Design: Rugged build quality for workshop use.
- User-Friendly Interface: Intuitive icon-based software and easy navigation.
- Live Data and Component Testing: Advanced diagnostic features.
- Pull-Out Stand: Hands-free viewing convenience.
Cons:
- Multimeter and Scanner Cannot Be Used Simultaneously.
- Multimeter Requires Battery Charging.
- One-Year Warranty (shorter than some competitors).
Who is it for?
The Autel AL539 is ideal for:
- DIY Car Owners: Provides the tools to diagnose and fix common car problems at home.
- Car Enthusiasts: Offers deeper insights into vehicle health and performance.
- Entry-Level Technicians: A cost-effective tool for basic diagnostics and electrical troubleshooting.
In conclusion, the Autel AL539 OBD2 scanner is a versatile and valuable tool that offers more than just basic OBD-II diagnostics. Its inclusion of a digital multimeter, combined with its user-friendly design and robust performance, makes it an excellent choice for anyone looking to take control of their car maintenance and repair. For its price, the AL539 provides significant functionality and can save both time and money in diagnosing and resolving vehicle issues.
