The Autel Autolink 539b distinguishes itself from other OBD2 scanners by incorporating a built-in multimeter. This dual functionality allows users to diagnose vehicle trouble codes and perform electrical tests, making it a versatile tool for both DIY enthusiasts and professional mechanics. This review explores the Autel AutoLink 539b’s features, performance, and overall value.
Design and Features of the Autel AutoLink 539b
The Autel AutoLink 539b boasts a compact and rugged design, measuring 6.7 x 3.6 x 1.4 inches and weighing just 10.6 ounces. Its robust construction, with ribbed soft rubber edging, ensures durability in demanding environments. A unique pull-out stand allows for hands-free operation, setting it apart from competitors like the Innova CarScan Inspector 5310 and the SeekOne SK860.
A clear, 2.8-inch color display provides easy navigation through the intuitive, icon-based software. The interface is simple, with eight keys for operation. While the screen is smaller than the Bosch OBD1300’s 3-inch display, it’s comparable to those found on the Innova CarScan 5310 and SeekOne SK860.
Image: The rugged design of the Autel AutoLink 539b.
Key features of the Autel AutoLink 539b include:
- OBD2 Diagnostics: Reads and clears trouble codes, displays live data, performs emissions readiness tests, and provides VIN information.
- Built-in Multimeter: Measures AC/DC voltage, current, resistance, and continuity. This allows for testing fuses, circuits, and battery voltage.
- ReadyTest: A pre-inspection feature that quickly assesses vehicle emissions readiness. Green checkmarks indicate passing results, while yellow exclamation marks or red octagons highlight areas needing attention.
- Live Data Streaming: Monitors real-time engine parameters, such as engine speed and coolant temperature, aiding in diagnosing complex issues.
- Data Logging and Printing: Stores diagnostic data for later review and allows printing via a PC connection.
Performance and User Experience
The Autel AutoLink 539b quickly connects to the vehicle’s OBD2 port via its 58-inch cable. While it doesn’t automatically decode the vehicle’s make, model, and year, it accurately retrieves the VIN and diagnostic trouble codes (DTCs). Testing confirmed its ability to swiftly identify and clear a deliberately introduced fault code (a disconnected oil temperature sensor).
Image: The Autel AutoLink 539b displaying the Start Test screen.
One notable limitation is the inability to use the OBD2 scanner and multimeter simultaneously. The multimeter requires separate charging via the included USB cable (AC adapter not included).
Autel AutoLink 539b: The Verdict
The Autel AutoLink 539b offers compelling value for its price, combining the functionality of an OBD2 scanner and a digital multimeter in a single device. While some limitations exist, such as the inability to use both functions concurrently and the one-year warranty (shorter than SeekOne SK860’s lifetime updates), the AL539b remains a powerful tool for diagnosing vehicle problems and performing basic electrical tests. Its rugged design, ease of use, and comprehensive features make it a valuable asset for any DIY mechanic or professional technician.
Image: The Autel AutoLink 539b connected under the hood of a vehicle.
