OBD2 Diagnostic Scanner BM310 – Engine Fault Code Reader

Read & Clear Engine Codes Instantly with the BM310 OBD2 Scanner

Stop guessing what that "Check Engine" light means. The BM310 OBD2 Diagnostic Scanner is a compact, plug-and-play car diagnostic tool that reads and clears engine fault codes on virtually any OBD II–compliant vehicle (1996 and newer). Whether you're a weekend DIYer or a seasoned mechanic, this affordable scan tool puts professional-grade diagnostics right in your hands.

Compatible with all OBD II protocols — including CAN, ISO, KWP2000, and more — the BM310 connects directly to your vehicle's standard OBD2 port (typically located under the dashboard) with no batteries, no app, and no Bluetooth required. Just plug in, power up, and get answers in seconds.

Key Features

• ✅ Universal OBD II Compatibility – Works with all OBD2-compliant cars, trucks, and SUVs (1996+)
• ✅ Read & Clear DTCs – Diagnose and erase Diagnostic Trouble Codes (engine fault codes) and turn off the Check Engine Light
• ✅ All OBD II Protocols Supported – CAN, ISO 9141-2, KWP2000, J1850 PWM & VPW
• ✅ Live Data Stream – View real-time sensor data to pinpoint issues faster
• ✅ I/M Readiness Check – Quickly verify if your vehicle is ready for emissions/smog testing
• ✅ Freeze Frame Data – Review vehicle data captured at the moment a fault code was triggered
• ✅ Plug & Play – No batteries needed; powers directly from the vehicle's OBD2 port
• ✅ Compact & Portable – Slim, lightweight design fits easily in your glove box or tool bag

Who Is This For?

The BM310 is perfect for car owners who want to avoid costly trips to the mechanic just to find out what a warning light means, as well as for professional technicians who need a reliable, budget-friendly code reader as a quick-check tool. It's ideal for used-car buyers who want to inspect a vehicle before purchasing.

Specifications

• Model: BM310
• Wireless Function: None (wired OBD2 connection)
• Batteries Required: No (bus-powered)
• High-Concern Chemicals: None
• Country of Origin: Made in Mainland China

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Learn More About OBD2 Diagnostics

For more information on how onboard diagnostics work and how OBD2 systems help keep your vehicle running safely, visit the U.S. EPA On-Board Diagnostics (OBD) Resource.

Frequently Asked Questions

Q: What vehicles are compatible with the BM310 OBD2 scanner?

A: The BM310 OBD2 diagnostic scanner is compatible with all OBD II–compliant vehicles, which includes virtually all cars, trucks, and SUVs sold in the United States from 1996 onwards. It supports all five OBD II communication protocols: CAN, ISO 9141-2, KWP2000, J1850 PWM, and J1850 VPW.

Q: Do I need batteries or an app to use this OBD2 code reader?

A: No batteries or smartphone app are required. The BM310 scanner powers itself directly through your vehicle's OBD2 diagnostic port. Simply plug it in and it's ready to use — no Bluetooth pairing or wireless setup needed.

Q: Can the BM310 turn off the Check Engine Light?

A: Yes! Once you've identified and addressed the underlying issue, the BM310 engine fault code reader can clear the Diagnostic Trouble Codes (DTCs) and turn off the Check Engine Light on your dashboard.

Q: Is the BM310 good for emissions testing preparation?

A: Absolutely. The BM310 features an I/M Readiness Check function that tells you whether your vehicle's onboard systems have completed their self-tests and are ready to pass an emissions or smog inspection — saving you time and potential re-test fees.