OBD2 Diagnostic Tool – Fault Code Reader & Voltage Tester V500

Read Engine Fault Codes & Test Your Battery in Seconds

The OBDII-V500 OBD2 Diagnostic Tool is your all-in-one solution for diagnosing engine problems, reading and clearing fault codes, testing battery voltage, and checking your vehicle's charging system — right from your OBD2 port. No expensive trips to the mechanic just to find out what that check engine light means. With the V500, you get fast, accurate answers in the palm of your hand.

Whether you're a DIY mechanic or a daily driver who wants to stay ahead of car trouble, this compact yellow scanner gives you the power to diagnose smarter and drive with confidence.

Made in Mainland China.

Key Features

• 🔍 Engine Fault Code Reader – Reads and clears OBDII diagnostic trouble codes (DTCs) to identify engine issues quickly
• ⚡ Voltage Tester – Displays real-time battery voltage so you know your battery's health at a glance
• 🔋 Charging System Test – Checks alternator and charging output to catch problems before they leave you stranded
• 🚗 Universal OBDII Compatibility – Works with most 1996 and newer gasoline and diesel vehicles with an OBD2 port
• 💡 Check Engine Light Reset – Clear trouble codes and turn off that annoying warning light after repairs
• 🟡 Bold Yellow Design – Easy to spot in your glove box or toolbox
• 🔌 No Battery Required for Tool Operation – Powers directly through your vehicle's OBD2 port (battery not included for unrelated features)
• 📟 Simple Plug-and-Play Interface – No complicated setup, no Wi-Fi, no Bluetooth needed

What's in the Box?

• 1 × OBDII-V500 Diagnostic Scanner (Yellow)

Note: Battery is NOT included.

Technical Specifications

Why Every Driver Needs an OBD2 Scanner

Modern vehicles are packed with sensors and electronics. When something goes wrong, your car's ECU stores a fault code — but without a scanner, you're left guessing. Having the V500 in your car means you can instantly identify problems, decide if it's safe to drive, and avoid being overcharged at the shop. Learn more about how OBD systems work from the U.S. EPA's OBD Information Page.

Also check out these related tools and accessories available in our store:

• 1/2" ABS Quick Connector Double Male Hose Coupling Adapter Set
• Automotive Cables & Jump Starters

Frequently Asked Questions

Q: What vehicles is the OBDII-V500 OBD2 diagnostic tool compatible with?

A: The OBDII-V500 is compatible with most gasoline and diesel vehicles manufactured from 1996 onwards that are equipped with a standard OBD2 (OBDII) port. This includes most cars, SUVs, trucks, and light-duty vans sold in the US, EU, and many other markets.

Q: Can this OBD2 fault code scanner clear the check engine light?

A: Yes! The V500 can read and clear diagnostic trouble codes (DTCs), which will turn off the check engine light once the underlying issue has been addressed. Please note that the light may return if the underlying fault persists.

Q: Does this tool need a battery to operate?

A: No battery is required for the scanner to function. The OBDII-V500 draws power directly from your vehicle's OBD2 port when plugged in.

Q: What does the voltage tester feature do on the V500?

A: The built-in voltage tester displays your vehicle's battery voltage in real time, helping you monitor battery health and identify if your battery or charging system (alternator) may be failing before you end up stranded.

Q: Does the OBD2 V500 require Wi-Fi or Bluetooth?

A: No. The OBDII-V500 is a standalone, wired scan tool with no wireless connectivity required. Simply plug it into your vehicle's OBD2 port and start diagnosing.