OBD2 code reader with live data graphing, battery voltage and key fob battery test
Model code: VD31 Manufacturer: Vdiagtool
VDIAGTOOL VD31 is a 2.8-inch colour OBD2 code reader that performs all 10 OBD2 tests: read/clear generic, manufacturer-specific, pending and permanent codes, turn off the check engine light, 4-in-1 live data graphing, freeze frame, one-click I/M readiness (smog check) with LED indicators, on-board monitor test, component and O2 sensor tests, vehicle information and module presence.
Extras: battery voltage test, a built-in key fob battery level check, DTC lookup and data review/printing. Supports all OBD2 protocols (J1850 PWM/VPW, ISO 9141-2, KWP2000, CAN) on 12 V OBD2/EOBD cars, SUVs and light trucks. Powered from the OBD2 port or USB Type-C. Free updates. Engine/OBD2 only – no ABS/SRS/transmission diagnostics.
| Product type | Device with pre-installed software (standalone) |
|---|---|
| OEM (Original Equipment Manufacturer) product? i | No |
| For which vehicle | Cars |
| Price (USD) | $49 – $60 |
| Connection with computer / tablet / phone | USB |
| Other connection (details) | OBD2 cable to the vehicle; USB Type-C for updates and printing |
| Vehicle power supply system | 12V |
| Supported protocols | K-line, KWP2000, SAE J1850, CAN, J1979 |
| Months of free updates | free for life |
| Subscription model (description) | Free software updates. |
| Menu language | English |
Notes added by the manufacturer that apply only to the vehicles listed below — the function itself is supported.
Generic OBD2/EOBD functions on the common makes listed (US-market vehicles from 1996, EU-market petrol from 2001 and diesel from 2004 – listed per make). VDIAGTOOL publishes no make list for this tool. VD31 is an engine/OBD2-only code reader (no ABS, SRS or transmission). Works on 12 V OBD2/EOBD cars, SUVs and light trucks.
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VDIAGTOOL is an automotive diagnostic tool brand founded in 2017 by a team of engineers with more than 20 years of experience in car repair and maintenance. The company researches, develops, manufactures and sells automotive diagnostic, maintenance and testing tools for DIYers and professional technicians: OBD2 code readers, handheld scanners, Android diagnostic tablets with bidirectional control and ECU coding, Bluetooth app-based scanners (including brand-specific GM, Ford and BMW scanners with J2534 pass-thru), circuit testers, battery testers and TPMS tools. VDIAGTOOL products are sold in more than 50 countries, including the United States, the United Kingdom, the EU, Saudi Arabia and Australia, with US-based support.
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