
Autolink AL539b
The AutoLink® AL539b OBDII & Electrical Test Tool supports all 10 modes of OBD II test for a complete diagnosis. Featuring the unique patented One-Click I/M Readiness Key, circuit test, starting and charging systems tests, battery test, TFT color display, and built-in speaker, the versatile, easy-to-use AL539b will streamline automotive service and help ensure rapid, accurate diagnosis and timely repair.
- Works on most 1996 and newer vehicles(OBDII & CAN)-domestic and import
- Features the unique patented One-Click I/M Readiness Key for quick State Emissions readiness check and drive cycle verification
- Easy-to-read AVOmeter allows you to test voltage, continuity and current at the fingertip
- Capable of diagnosing 12V charging systems, starting systems and condition of discharged battery
- Provides quick and accurate load-free testing of most types of 12V batteries, including AGM, standard and maintenance-fee batteries
- Bright color coded LEDs and built-in speaker provide both visual and audible tone for readiness verification
- Easily determines the cause of the Check Engine Light (MIL)
- Retrieves generic (P0, P2, P3, and U0), manufacturer specific (P1, P3, and U1) codes and pending codes
- Turns off Check Engine Light (MIL), clears codes and resets monitors
- Displays monitor and I/M readiness status (emissions)
- Reads live PCM datastream, live O2 sensor test data, freeze frame data
- Graphs data (1996 and newer)
- Troubleshooter codes tips guide technicians to the root cause of trouble code faster, saving diagnosis and repair time
- Memory/battery backup for off-vehicle data review and analysis
- Multilingual menu and DTC definitions-English, Spanish and French, etc.
- Retrieves vehicle information (VIN, CIN and CVN)
- Internet updateable
- Prints data via PC
Display | TFT color display (320 x 240 dpi) |
Operating Temperature | 0 to 60°C (32 to 140 F°) |
Storage Temperature | -20 to 70°C (-4 to 158 F°) |
Length\Width\Height | 175 mm (6.91”)\96.6 mm (3.80”)\37 mm (1.46”) |
Weight | 0.3kg (0.8lb, without wire) or 0.68kg (1.82lb, with wire) |
- Battery Test Cable
- 3.7V Li-ion battery
- USB Cable
- User’s Manual
- Probes
- Carry case
- OBDII Cable

Functions | AL329 | AL529 | AL529HD | AL539b | AL629 |
---|---|---|---|---|---|
One Touch I/M Readiness Check | √ | √ | √ | √ | |
Read MIL Status | √ | √ | √ | √ | √ |
View Freeze Frame Data | √ | √ | √ | √ | √ |
View Live Data | √ | √ | √ | √ | √ |
Read/Erase DTCs | √ | √ | √ | √ | √ |
View Vehicle Information | √ | √ | √ | √ | √ |
AutoVIN for Quick DTC definition | √ | √ | √ | √ | |
O2 Monitor test | √ | √ | √ | √ | |
On-board Monitor test | √ | √ | √ | √ | |
Component Test | √ | √ | √ | √ | |
Modules Present | √ | √ | √ | √ | |
Support J1939 and J1708 Protocols | √ | ||||
Read/Erase DTCs for ABS, SRS, Engine & Transmission | √ | ||||
Read Enhanced Codes in Powertrain system for Ford, GM and Chrysler | √ | √ | √ | ||
AC/DC Voltage Test, Resistance Test, Diode Voltage Test, Current Test (0~20A, 0~200mA), Starter Test, Charging System Test, Battery Test | √ | ||||
Save and Playback Data | √ | √ | √ | √ | |
DTCs Help | √ | √ | √ | √ | |
Print Data Via Windows-baded PC | √ | √ | √ | √ | |
Vehicle Coverage | Vehicles compatible with OBD protocols | Vehicles compatible with OBD protocols | Vehicles compatible with OBD protocols and J1939, J1708 protocols | Vehicles compatible with OBD protocols | US: GM, Ford, Lincoln, Chrysler, Dodge; European: Mercedes, Smart, BMW, Mini, VW, Audi, Land Rover, Jaguar, Volvo, Peugeot, Citroen, Fiat, Alfa Romeo, Abarth, Lancia, Porsche, Bugatti, Skoda, Seat, Bentley, Renault, Dacia, Opel, Saab; Asian: Toyota, Lexus, Scion, Honda, Acura, Nissan, Infiniti, Hyundai, KIA, Mazda, Suzuki, Subaru, etc. |