Autel AutoLink AL519 OBD2 Scanner — Handheld Enhanced Diagnostic Tool, Live Data & Code Clearing (1996+ vehicles)

The AL519 upgrades the simple code reader into a full OBD2 diagnostic tool suitable for DIY mechanics and small shops. It supports all 10 standard OBDII modes to retrieve generic and many manufacturer-specific codes, show freeze-frame and live sensor data in text and graph formats, and report vehicle information like VIN and calibration IDs. Note important compatibility limits with some FCA (Chrysler/Dodge/Jeep) models and Secure Gateway–protected vehicles; confirm vehicle support before purchase.

How does the AL519 find and clear a check engine light?

The AL519 reads stored, pending, and manufacturer-specific DTCs to help pinpoint issues that trigger the check engine light. After diagnosing, you can clear codes and verify I/M readiness to help prepare for emissions testing. It does not perform advanced ECU programming or service resets.

• Reads generic (P0/P2/P3/U0) and many manufacturer-specific (P1/P3/U1) codes
• Clears CEL and resets stored trouble codes
• Displays I/M readiness status for smog testing
• Not compatible with some FCA vehicles post-2017 or SGW-protected modules

What live data and freeze-frame information can I view?

The scanner streams real-time PID values and can plot data as text or graphs for easier analysis. Freeze-frame captures snapshot parameters recorded at the time a fault occurred, which helps reproduce or confirm intermittent faults. Data access is limited to standard OBD-II parameters, not full manufacturer proprietary systems.

• View live RPM, fuel trim, coolant temp, fuel pressure, and more
• Graphing mode highlights trends and sensor behavior over time
• Retrieve freeze-frame snapshots tied to specific DTCs
• Displays vehicle VIN, calibration IDs, and CVNs for verification

Which vehicles and systems are supported by the AL519?

The AL519 is intended for vehicles meeting the standard OBD-II specification (1996 onward in the US market). It performs all OBDII modes (1–10) but cannot access modules behind Secure Gateway systems or clear codes on certain FCA models built after 2017. For full manufacturer-level diagnostics, consider a higher-tier Autel model.

• Compatible with most 1996+ OBD-II vehicles in the US
• Not supported for vehicles with SGW or post-2017 FCA AutoAuth access
• Performs OBD-II-only diagnostics; no ECU programming
• Contact seller with VIN to confirm compatibility before ordering

How do I update language or get the user manual?

Language packs and the PDF user manual are available from Autel support and the product pages; updates require a Windows PC and the MaxiLinkII updater. The AL519 language update changes only display language and does not add diagnostic functions.

• Download manual from the product guides or request via seller email
• Use MaxiLinkII on Windows to install .aut and .bin language files
• Connect the AL519 via USB; long-press left button if authorization mismatch occurs
• Updates are language-only; for broader function updates upgrade models

Who is this for? The Autel AL519 suits vehicle owners, fleet maintenance staff, and independent mechanics who need a robust OBD2 scanner without the complexity or cost of factory-level tools. It’s ideal for diagnosing check engine lights, verifying readiness for emissions tests, and viewing live engine data. If you require advanced module coding, manufacturer-specific service functions, or support for SGW-protected vehicles, consider a professional Autel model such as the MD906 Pro or MK808BT Pro.