OBD2 Scanner VDIAGTOOL VD31, Check Engine Code Reader, 3-in-1 OBD2 Scanner Diagnostic Tool with Car Battery Tester & Car Key Battery Tester, Enhanced Car Code Reader for Cars and Trucks All Cars 1996+

About This

• EFFORTLESS CAR KEY BATTERY CHECKNever face a dead key remote surprise again! This innovative vehicle code reader features a dedicated key fob battery test function for the new key and the store key. With the included 9V battery for standalone operation, you can check any key's battery life anywhere & anytime with one hot key. Simply input the frequency or select your car model from the menu for an instant & precise voltage reading. *Pro Tip: For a precise reading, enter the key's exact frequency, typically found on the key itself or via a quick web search. Contacting a dealer is also an option.Remove the 9V battery when not testing key to preserve its charge.
• UPGRADE OBD2 SCANNERVDIAGTOOL VD31 is the ultimate upgrade, masterfully blending the full capabilities of a car code reader with a pioneering car key battery voltage tester. It performs all 10 essential OBD2 tests, supporting turn off the Check Engine Light(CEL), read/clear fault codes, monitor live data with 4-in-1 graphing, view freeze frame(10000+ DTC), one-click I/M readiness(smog check),on-board monitor test(Mode 06), component test, O2 sensor test, vehicle info, and module present. Enhanced functionalities such as car battery & Key Fob battery voltage testing, DTC lookup, data playback, and printing make it your all-in-one solution for quick proactive car care without a dealership.
• 2026 EXCLUSIVE NEW VERSION: 3-IN-1 OBD2 SCANNER DIAGNOSTIC TOOL The VDIAGTOOL VD31 check engine code reader not only quickly checks for engine faults and provides professional maintenance recommendations, but also acts as a reliable car battery tester, checking the health of your car battery and even testing the remote key battery voltage. It's the only truly market-proven 3-in-1 car scanner as a powerful alternative to tools like the FIXD car diagnostic tool.
• COMPLETE CHECK ENGINE LIGHT DIAGNOSTICSThe one-click I/M Readiness hotkey makes S_mog check preparation a breeze, VD31 check engine code reader with reset instantly shows emission monitor status on a single screen—no cycling through submenus. Detect EVAP leaks, verify O₂ sensor status, and confirm all monitors are ready for a state inspection. Upgrade from scanners like FIXD car diagnostic tool, the VD31 car scanner replaces color-coded LEDs and printers with a direct, all-in-one display, which is simpler and more efficient.
• EASY TO USE, PLUG & PLAYThis car code reader and reset tool boots up instantly with a crystal-clear display and intuitive menu. No batteries required, just plug vd31 into your car's OBD2 port and the one-click "scan" function delivers fault codes & readiness status directly, eliminating confusing LEDs and hidden menus. The VD31 escaner automotriz ensures a seamless, frustration-free diagnostic experience right out of the box, and clearly guides you on your next steps. Note: VD31 is unable to scan vehicles that do not follow the OBD2 protocol.
• WIDE COMPATIBILITYVD31 auto code reader comes with vehicle compatibility, supporting all obd2 protocols for 1996 US-based, 2000 EU-based and Asian cars, light trucks, SUVs, as well as newer OBD2 vehicles both domestic and foreign. Ideal for quick car health checks, pre-purchase inspections, or routine maintenance, this auto scanner will give you peace of mind on the road. Note: The VD31 supports check engine code reading and reset functions. However, it does not support tire pressure monitoring system (TPMS) reset, nor does it detect or diagnose systems such as ABS, SRS, TPMS, or airbag.

Overview

• Brand : VDIAGTOOL
• Power Source : Code Reader Powered by connecting to OBD2 Port; Car Key Battery Tester Powered by 9v Battery( (Included) See more
• Operating System : Plug & PlayOBD2 scanner +car battery tester+car key battery testerFull OBDII FunctionsOne-click I/M Readiness4-in-1 Live Data198869+ DTC Look UpData Review & PrintLif*etime Free Update See more
• Screen Size : 2.8 inches
• Automotive Fit Type : Universal Fit
• Make Car Repair Easy & Inexpensive
• Founded in 2018, VDIAGTOOL is driven by a passion for simplifying car diagnostics. Inspired by real-life frustrations, our founder assembled a team of over 200 engineers and mechanics with 20+ years of experience. Together, we’ve developed innovative tools trusted by professionals and DIYers in 50+ countries, ensuring smooth and safe journeys for all. Your car, our expertise—keeping you confidently on the road.
• Looking Ahead
• Enterprise Spirit
• Stop guessing and avoid overcharging! All-in-One VD31 OBD2 Scanner combines a Code Reader, Car Battery Tester, and Car Key Battery Checker . Quickly diagnose check engine lights, test battery health, and solve car issues yourself. Save time and money with this essential car diagnostic tool.
• Our innovative OBD2 Scanner features a built-in Car Key Battery Tester. Instantly check the health of your key remote battery before it fails — no extra tools needed. Perfect for regular upkeep, pre-trip checks, or troubleshooting a dead key, avoid being stranded by a weak battery.
• 3-In-1 OBD2 Scanner Diagnostic Tool: 1. Car Key Battery Tester + 2. Check Engine Code Reader + 3. Car Battery Tester
• VD31 is THE ONLY vehicle code reader with a built-in key remote battery tester. Save money and simplify diagnostics with this all-in-one solution designed for everyday drivers and DIY users!
• Quickly read & clear engine fault codes, fix the issues with your vehicle and turn off check engine light with ease.
• Diagnose and Reset Engine Lights in Minutes! VD31 check engine code reader instantly reads your car's engine codes, providing clear diagnostics to make informed decisions. Protect your wallet by identifying the real issue in the dealership, only pay for the necessary repair to smooth egine running.
• Professional OBD2 SCANNER DIAGNOSTIC TOOL for Diagnosing and Repairing Your Car. One-click I/M readiness status query allows you to easily, quickly, and accurately determine whether your vehicle is ready for s*mog test or requires further inspection, saving you time and money.
• Looking Ahead: Continuous innovation and progress are the direction of our VDIAGTOOL future development. VDIAGTOOL will always adhere to produce high-quality products, make customers satisfied and get a good reputation. Enterprise Spirit : Unity and Cooperation Continuous Innovation Quality & Customer First Maintain Sustainable Development
• Continuous innovation and progress are the direction of our VDIAGTOOL future development.
• VDIAGTOOL will always adhere to produce high-quality products, make customers satisfied and get a good reputation.
• Unity and Cooperation
• Continuous Innovation
• Quality & Customer First