VD31 Car Code Reader OBD2 Scanner with Key Fob Battery Tester, Check Engine Ligh
VDIAGTOOL VD31 Car Code Reader OBD2 Scanner with Key Fob Battery Tester, Check Engine Light Reader
Product Description
The VDIAGTOOL VD31 Car Code Reader is a compact, plug-and-play OBD2 scanner designed for everyday drivers who want fast, reliable Check Engine diagnostics with the added convenience of a built-in car key fob battery voltage tester. Compatible with all OBDII-compliant vehicles from 1996 and newer, it works on cars, light trucks, SUVs, and minivans.
What sets the VD31 apart is its dedicated key remote battery test function. Using the included 9V battery, the scanner can independently test key fob battery voltage anytime, anywhere, without connecting to a vehicle. Simply enter the key frequency or select the vehicle model to receive an accurate voltage reading—helping prevent unexpected key failures before they happen. (Please place the remote control key in the upper left corner of the device during measurement)
As a full-function OBD2 code reader, the VD31 supports all 10 OBD2 test modes, allowing users to read and clear Check Engine Light codes, view freeze frame data, perform I/M readiness (smog check), access Mode 06 on-board monitor results, run O2 sensor and component tests, retrieve vehicle information, and monitor live data with 4-in-1 graphing. An extensive 10,000+ DTC database with built-in definitions makes troubleshooting easier—no apps or subscriptions required.
The VD31 also functions as a car battery voltage tester, allowing users to quickly check battery health and charging system status. Combined with key fob battery testing and engine diagnostics, it delivers a true 3-in-1 diagnostic solution in a single handheld device.
Designed for simplicity, the VD31 features plug-and-play operation, a clear screen, and intuitive menus. It comes with a 2-year warranty, free lifetime software updates via USB ensure continued compatibility without ongoing costs. With its durable housing and user-friendly design, the VD31 is ideal for daily drivers, older users, first-time car owners, and pre-purchase inspections.
Packaging Includes:VD31 Scanner Code Reader, Data Cable, Instruction Manual, Packing Box
Search Terms
obd2 code reader check engine scanner key fob battery tester car diagnostic reader smog check obd scanner
Recommended Use
Check engine diagnostics; Smog inspection preparation; Car battery check; Key fob battery testing; Routine vehicle maintenance
Occasion
Daily vehicle maintenance; Pre-purchase inspection; New driver gift; Automotive tool upgrade
3-in-1 OBD2 Scanner with Key Fob Battery Tester: Combines engine code reader, car battery voltage tester, and key remote battery tester in one compact device.
Dedicated Car Key Battery Voltage Test: Test key fob batteries anywhere using the included 9V battery—no vehicle connection required; supports frequency or model selection.(Please place the key in the upper left corner of the device during measurement)
Complete OBD2 Diagnostics for Check Engine Light: Read & clear codes, freeze frame, live data, Mode 06, O2 sensor tests, component tests, vehicle info, and module presence.
One-Click I/M Readiness for Smog Checks: Instantly displays emission monitor status to help prepare for state inspections without scrolling through menus.
Easy Plug-and-Play Operation: No internal batteries required for vehicle diagnostics—just plug into the OBD2 port and scan; clear display and simple controls.
Lifetime Free Updates & Reliable Build: Lifetime free updates via Windows PC; rugged, shock-resistant housing designed for long-term everyday use.
