OBD2 Scanner & Diagnostic Tool – Engine Code Reader 519R

Read & Clear Engine Fault Codes Instantly — No Mechanic Needed

Take control of your car's health with the 519R OBD2 Scanner & Diagnostic Tool. This all-in-one code reader lets you diagnose engine fault codes, monitor your car's battery voltage, and test your charging system — all from a compact, plug-and-play device. Whether your check engine light just came on or you want to stay ahead of costly repairs, the 519R gives you real-time insight without the dealership price tag.

Made in Mainland China.

Key Features

• Engine Fault Code Reader: Reads and clears OBD2 diagnostic trouble codes (DTCs) quickly and accurately
• Battery Voltage Tester: Monitors your car's battery voltage in real time so you're never caught off guard
• Charging System Tester: Checks your alternator and charging system performance to prevent unexpected breakdowns
• Universal OBD2 Compatibility: Works with most 1996 and newer gasoline vehicles equipped with a standard OBD2 port
• Plug & Play Design: No batteries required — powers directly from your vehicle's OBD2 port
• Compact & Portable: Lightweight design fits easily in your glove box for roadside peace of mind
• No Wireless Required: Wired connection ensures a stable, reliable diagnostic session every time

Who Is This For?

The 519R is perfect for everyday drivers, DIY mechanics, and car enthusiasts who want a fast, affordable way to understand what's going on under the hood. Stop guessing and start diagnosing — save hundreds on unnecessary shop visits by knowing exactly what your vehicle needs before you walk through the door.

Technical Specifications

• Model: 519R
• Protocol Support: OBD2 / EOBD
• Wireless Function: None (wired)
• Batteries Required: No (powered via OBD2 port)
• Country of Origin: Mainland China

Explore More Automotive & Diagnostic Tools

Looking for other useful car accessories? Check out our Automotive Cables & Jump Starters and browse our full range of OBD2 & Car Diagnostic Tools. You might also like our selection of handy everyday tools.

For more information on how OBD2 systems work and what diagnostic trouble codes mean, visit the U.S. Environmental Protection Agency's OBD resource page.

Frequently Asked Questions

Q: What vehicles are compatible with the 519R OBD2 Scanner?

A: The 519R OBD2 scanner is compatible with most gasoline-powered cars, trucks, and SUVs manufactured in 1996 or later that are equipped with a standard 16-pin OBD2 diagnostic port. This covers the vast majority of vehicles sold in the United States, Canada, Europe, and other markets that adopted the OBD2 standard.

Q: Do I need batteries or a separate power source to use this scanner?

A: No batteries are required. The 519R diagnostic tool draws power directly from your vehicle's OBD2 port, so it's ready to use the moment you plug it in — no charging or battery installation needed.

Q: Can this OBD2 code reader turn off my check engine light?

A: Yes. Once you have read and addressed the underlying fault code causing your check engine light, the 519R allows you to clear the diagnostic trouble code (DTC), which will turn off the check engine light. Note that if the underlying issue is not repaired, the light may return.

Q: What is the difference between the engine code reader and the voltage/charging tester functions?

A: The engine code reader function reads and clears OBD2 diagnostic trouble codes related to your engine and emissions systems. The voltage tester checks your battery's current voltage level, while the charging tester evaluates whether your alternator is properly charging the battery while the engine is running — giving you a complete picture of your vehicle's electrical health.

Q: Is this scanner wireless or Bluetooth-enabled?

A: No, the 519R is a wired OBD2 scanner. It connects directly to your vehicle's OBD2 port without the need for Bluetooth, Wi-Fi, or a smartphone app, making it simple and reliable to use.