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AUTEL AL539B OBD2 Car Fault Code Reader Scanner & Battery Test Diagnostic Tool

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AUTEL AL539B OBD2 Car Fault Code Reader Scanner & Battery Test Diagnostic Tool


AUTEL AL539 OBD2 CAN Electrical Test Fault Diagnostic Scanner Code Reader Tool


  • 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
  • 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


【Autel AutoLink AL539】 OBDII/CAN Scan Tool/Code Reader/Electrical Test Tool for Complete Diagnosis / Multimeter Turns off MIL etc.
  The AutoLink® AL539 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 test, TFT color display, and built-in speaker, the versatile, easy-to-use AL539 will streamline automotive service and help ensure rapid, accurate diagnosis and timely repair. HTB1hJlYiC_I8KJjy0Foq6yFnVXal



    • Probes
    • Carry case
    • USB cable
    • User Manual
    • CD
    • 3.7 Li-ion Battery
    • OBDII Cable






Product details

3-IN-1 Combo: OBD2 Scanner + Multimeter + Battery Tester

√ 3-in-1 Combo: an OBDII scanner, a multimeter, and a battery tester (for battery health/starter/charging system).

√ Vehicle Coverage: most 1996 and newer OBDII & CAN vehicles across the globe.

√ Full OBD2 Modes Test: turn off the CEL; help pass the smog test; detect most emission-related car issues (graphic live stream, freeze frame data, o2 sensor test, etc.).

√ Patented One-click I/M Readiness: for fast and easy emission readiness check.

√ Multimeter (AVOmeter): diagnose the vehicle electrical system (DC or AC voltage, continuity, and current) to simplify the troubleshooting.

√ Battery Health Tester: load-free testing of most 12V batteries health status (Type: Regular, AGM, AGM/Spiral, Gel; Rating: CCA, CA, MCA, JIS, DIN, SAE, IEC, EN).

√ Starter Tester: help predict if the battery will fail to start a vehicle.

√ Charging System Tester: check if the output voltage and the charging current is normal.

√ More: data record and review; multilingual menu (EN, ES, FR …), DTC definition; internet update; data printable via PC.

Circuit Test (as a Multimeter / AVOmeter)

√ Test the voltage in both AC or DC components (if > 30V, the scan tool may be damaged).

√ Test the resistance between two circuit points (if > 50 ohm, it will display 0L).

√ Measure the flow of current between 0A~20A (if >20A, the scan tool may be damaged).

√ Can test the diodes (connect the probes to battery terminals correctly).

Battery Test (diagnose battery health, starter, and charging system status)

Connect this OBD2 scanner to your vechile via DLC port, or contact the probes to battery’s terminals. You can also use it to test the battery health, starter, and charging system status.

√ Battery Health Test

√ Starter Status Test

√ Charging System Test

All Modes OBDII Scanner

√ Read DTCs

√ Clear DTCs

√ View dynamic Live Data

√ Display I/M Readiness Status

√ Show Freeze Frame Data

√ O2 Sensor Test

√ EVAP Test

√ Access to on-Board Diagnostic Monitoring Test Results

√ Retrieve vehicle information (VIN, CID, and CVN)

√ Read generic (P0, P2, P3, and U0) and manufacturer specific (P1, P3, and U1) codes

  • 3-In-1 OBD2 Scanner, Top-Rated Battery Tester with Avometer
  • Battery Test Most Types of 12V Batteries, Including AGM, Standard and Maintenance-Free Batteries
  • Circuit Test: Build-In Avometer Supports Test Voltage, Continuity and Current at the Fingertip
  • Full OBD2 Functions: Read/Erase Code, Read Live Data And Freeze Frame, I/M Readiness Status,O2 Sensor Test
  • DTC Lookup for Detailed Codes Information Retrieval, Data Playback

Customer Reviews

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AUTEL AL539B OBD2 Car Fault Code Reader Scanner & Battery Test Diagnostic Tool
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