How to Choose VNCI Diagnostic Tool?

VNCI brand has a series of diagnostic tools for GM, Ford/Mazda, VAG, Porsche, Jaguar, Land Rover, Nissan, Renault, Mitsubishi, Suzuki, etc. It can meet the needs of different customers. All are genuine with high quality and cheap prices. Choose the related VNCI diagnostic tool according to the car model.

All original VNCI diagnostic scanners:

For GM cars, choose VNCI MDI2.


  1. Support CAN FD and DOIP protocol
  2. Compatible with Techline connect (TLC) software
  3. Support GMs motors Global A/B platform architecture, cover GMs from 1996 to the present
  4. Support GDS2, DPS, and Tech2win offline software No registration required for direct use.
  5. Support SAE J2534 Passthru ISO2290 protocol for GMs motors
  6. Support ECU, PCM, ABS, VTA and other automotive electronic system programming operation and immobilizer matching
  7. Free maintenance for 1 year
  8. Upgrade firmware online for free, VNCI Device Manager free download
  9. Three connection modes

USB Connection Mode: Connect via the USB cable.

AP Connection (Wifi connection directly) Mode: Connects to a computer via the built-in WIFI of VNCI MDI2, similar to Bluetooth connection.

Station Connection Mode (WLAN Connection): Connect the VNCI MDI2 device and the computer to the same local area network.

AP connection mode and station connection mode can be switched through the device button.

Compared with other GM diagnostic tools, VNCI has the advantages below.

  • Support both CAN FD and DoIP protocols
  • Support USB, WiFi and WLAN three connection methods
  • Compatible with original driver, no need 3rd party driver


Manufacturer VNCI Clone VXDIAG
Price $219 $255 $129/$199
Operating system Win7/Win10 Win7/Win10 GDS2 : Win7, Win10; Tech2win: only Win7 32bit
Driver Original with original MDI driver MDI Manager VX Manager
GDS2 Yes Yes Yes
Tech2win Yes Yes Yes
DPS (Development Programming System) Yes Yes
Passthru mode Yes Yes Yes
Techline Connect SPS2 online programming Yes Yes Yes
Vehicle coverage all GMC, Chevrolet, Buick, Cadillac and Opel models from 1996 to 2023 GM Chevrolet Cadillac GMC Buick Hummer / OPEL till 2022 GM Chevrolet Cadillac GMC Buick Hummer / OPEL till 2022. Tech2win cannot do Opel and Saab (2000-2010), cannot do Holden.
Protocols SAE J2534 Pass-Thru, CAN FD, DoIP, UART, Class2, KWP2000, GMLAN(CAN) UART, Class 2, KWP2000 and GMLAN (CAN) UART, Class 2, KWP2000 and GMLAN (CAN)
CAN FD Protocol Yes
DoIP protocol Yes
Connection USB, WiFi, WLAN USB, WiFi VCX NANO: USB/WiFi
Multi-language GDS2: Multi-language; Tech2win: English GDS2: Multi-language; Tech2win: English GDS2 Multi-language; Tech2win: English
Software Update Update by link Update by HDD Update by link
Firmware Update Update online via VNCI manager Update online Update online via vx manager
Activation No Yes No

For Ford/Mazda, choose VNCI MF J2534 or VNCI VCM3.

Both work with Ford/Mazda IDS software, support software update by link, and firmware update online.

The difference is that VCM3 is compatible with OEM software driver, supports CAN FD and DOIP protocols, plug and play, can support new Ford pickup trucks and EV cars, but MF J2534 doesn’t have these functions.

VCM3 is compatible with any version of Ford IDS, FDRS (new software), Mazda IDS, MDARS (new software) software, but VNCI MF only supports Ford/Mazda IDS software.

VCM3 supports 1996-2024+ Ford/Mazda while MF supports 1996-2023.

VCM3 supports USB, WiFi, and LAN three connection methods, but MF doesn’t support LAN.

As VCM3 has more functions than MF, it’s more expensive.


Price $169 $89
Compatible with OEM software driver Yes No
Plug and Play Yes No
Support CAN FD protocol Yes No
Support DoIP protocol Yes No
Connection USB, WiFi, LAN USB, WiFi
Vehicle Coverage 1996-2024+ 1996-2023
Software Ford IDS Ford IDS
Mazda IDS Mazda IDS
Software update Update by link Update by link
Firmware update Yes, firmware update online Yes, firmware update online
New Ford pickup trucks Yes No
Ford EV cars Yes No
Compatible with different IDS version Yes No
Compatible with Forscan Yes Yes
Compatible with Ford FDRS FJDS Yes No
Compatible with Mazda MDARS Yes No

SVCI is not developed any more. The hardware is switched to the new VNCI MF J2534. They have the same functions.

VNCI and VXDIAG can support the latest Ford and Mazda IDS software.

Both can be used as j2534 passthru for Ford FDRS Mazda MDARS for online programming.

VNCI MF J2534 can also be used as ELM327 device. It is also compatible with other software HDS TIS VIDA SDD etc.

VNCI MF vs. VXDIAG Ford/Mazda:

Price $89  $89
Driver VNCI IDS Loader driver VXDIAG and Ford IDS driver
Ford IDS Yes, IDS V130 Yes, IDS V130
Mazda IDS Yes, IDS V131 Yes, IDS V131
Ford FDRS Yes Yes
Ford FJDS Yes Yes
Mazda MDARS Yes Yes
Forscan Yes Yes
ELM327 Mode Yes, ELM327 software (for ELMConfig, Forscan, Scan Master No
J2534 Passthru for other software Yes, works with ODIS SDD HDS Techstream VIDA PCMFlash etc No, single licensed
Operating system Win10 64bit Win7, Win8 and Win10 64bit
J1850 PWM protocol Yes
Vehicle coverage Ford/Mazda from 2006 to 2022 Ford/Mazda from 2005 to 2022

For VW Audi Skoda Seat, choose VNCI 6154A VAG Diagnostic Tool.

It’s good for beginners because it’s cheap, plug and play, easy to use.

VNCI supports both DoIP and CAN FD protocols. It’s only for VAG vehicles, and cannot be used as passthru device.

As it’s the same as the genuine one except for appearance, no need to install an extra driver. Run with original drivers no need any modifications to drivers. No need any license.

Besides, there is an option to change the serial number in the VNCI firmware update tool.

It can work fast without any disconnections and displays the voltage, auto scan took less than one minute to complete.

VNCI 6154A vs. VXDIAG vs. TabScan 6154:

Item VNCI 6154A VXDIAG VCX SE 6154 TabScan 6154C
Price  $119  $169  $159
Vehicle coverage VW, AUDI, SKODA, SEAT, Bentley, and Lamborghini from 1995 to 2023 VW, Audi, Skoda, Seat, Bentley from year 2001-2022 VW, Audi, Skoda, Seat, Bentley from year 2001-2022
CAN FD protocol Yes No No
DoIP protocol Yes No Yes
Compatible with original ODIS drivers Yes Yes
3rd party driver or device manager Yes, vx manager Yes
Compatible with latest ODIS-S service software Yes, ODIS-S V23 Yes, ODIS-S V23 ODIS V23 not tested
Compatible with latest ODIS-E engineering software Yes, ODIS-E V17 Yes, ODIS-E V17 ODIS-E 17 not tested
Device heating No No No
Online programming Yes, with online account Yes, with online account Yes, with online account
Customize serial number Yes
Operating system Win10 64bit Win10 64bit (recommend) Win7, Win8 and Win10
J2534 Passthru No Yes Yes
Connection USB, WiFi and WLAN USB, WiFi and WLAN USB, Bluetooth
Update Software update by link Software update by link Software update by link
Firmware update online Firmware update online Firmware update online
Extension Allow to add other car brands to device (pay license) Supports OBD GO APP on mobile phone

For other vehicles, click the following related links to learn more info.

VNCI PT3G Diagnostic Scanner for Porsche:

VNCI Diagnostic Scanner for Jaguar Land Rover:

VNCI RNM Diagnostic Interface for Nissan Renault Mitsubishi:

VNCI VDI3 Diagnostic Interface for Rongwei MG Wuling Baojun Datong:

VNCI 6516SZ Diagnositc Interface for Suzuki: