V520 OBD2 Diagnostic Scan Tool | Code Reader & Battery Tester

V520 Professional OBD2 / EOBD Car Diagnostic Scan Tool

Take full control of your vehicle's health with the V520 Professional OBD2/EOBD Diagnostic Scanner. Whether you're a DIY mechanic or a seasoned auto professional, this compact and powerful scan tool lets you read and clear fault codes, check I/M readiness status, and test your car's battery — all without needing an external power source. Compatible with all OBD II protocol vehicles manufactured since 1996, the V520 is the all-in-one diagnostic solution your garage has been missing.

Made in Mainland China.

Key Features

• Universal OBD2 / EOBD Compatibility: Works with all OBD II compliant cars, trucks, and SUVs from 1996 onward across all major protocols (CAN, ISO, PWM, VPW, KWP2000).
• Read & Erase Fault Codes: Instantly retrieve Diagnostic Trouble Codes (DTCs) and clear check engine lights to save on costly mechanic visits.
• I/M Readiness Testing: Quickly verify whether your vehicle is ready for emissions testing — no guesswork needed before your next smog check.
• Built-In Battery Tester: Assess your vehicle's battery health directly through the OBD port — no separate tools required.
• No Battery Required: Powers directly from the vehicle's OBD II port for instant, hassle-free operation.
• Plug & Play: No software installation or Wi-Fi needed — just plug in and start diagnosing in seconds.
• Compact & Portable: Lightweight design makes it easy to store in your glove box or toolkit for on-the-go diagnostics.
• Clear, Easy-to-Read Display: Results are shown in plain language, making it accessible even for first-time users.

Who Is This For?

The V520 is perfect for everyday drivers who want to understand their car before visiting a mechanic, as well as experienced technicians who need a reliable, fast, and portable code reader in their toolkit. Stop paying diagnostic fees just to find out what that check engine light means!

Specifications

• Compatible Protocols: OBD II / EOBD (CAN, ISO9141-2, KWP2000, J1850 PWM, J1850 VPW)
• Compatible Vehicles: All OBD II protocol cars manufactured from 1996 onward
• Power Source: Vehicle OBD II port (no battery required)
• Wireless: No
• Item Type: Code Reader & Scan Tool
• Origin: Mainland China

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For more information on vehicle emissions standards and OBD systems, visit the U.S. EPA On-Board Diagnostics (OBD) resource page.

Frequently Asked Questions

Q: Is the V520 OBD2 scanner compatible with my car?

A: The V520 is compatible with all vehicles that support the OBD II / EOBD protocol, which includes virtually all cars and light trucks sold in the United States from 1996 onward and in Europe from 2001 onward. If your car has a standard 16-pin OBD II port (usually located under the dashboard near the steering column), the V520 will work with it.

Q: Do I need to install any software or app to use this scan tool?

A: No. The V520 is a completely standalone plug-and-play device. Simply plug it into your vehicle's OBD II port and it powers on automatically — no smartphone app, Wi-Fi connection, or software installation required.

Q: Can the V520 turn off my check engine light?

A: Yes. The V520 can read Diagnostic Trouble Codes (DTCs) and erase them, which will turn off your check engine light. Keep in mind that if the underlying issue is not fixed, the light may return. It's always a good idea to address the root cause of the fault code.

Q: What does the I/M Readiness function do?

A: I/M Readiness (Inspection & Maintenance Readiness) checks whether your vehicle's onboard diagnostic systems have completed their self-tests and are ready to pass an emissions inspection. This is very useful before scheduling a smog check or state inspection.

Q: Does the V520 need batteries or charging?

A: No batteries or charging are needed. The V520 draws its power directly from the vehicle's OBD II diagnostic port, so it's always ready to use whenever you need it.