Combo GM Diagnostic Software​ – Tech2win and Techline

The Combo GM Diagnostic Software provides a complete diagnostic and programming solution for GM, Chevrolet, and VinFast vehicles. With Tech2Win v2.3.70 supporting older GM models up to 2014 and Techline Connect v2.36 covering vehicles from 2009 to the present, this combo ensures full coverage across generations.

Both software programs allow users to read and clear fault codes, access live data, perform ECU programming, and conduct comprehensive system diagnostics — making it the ultimate toolkit for professional technicians and GM repair workshops.

What’s Included GM Diagnostic Software Combo Package

The GM Diagnostic Software Combo Package includes:

• Tech2Win v2.3.70 – Diagnostic software for GM, Chevrolet, and VinFast vehicles up to 2014.
• Techline Connect v2.36 – Advanced diagnostic and programming software for GM vehicles from 2009 to the latest models.
• Pre-configured installation support via TeamViewer or UltraViewer to ensure smooth setup and activation.
• Full Lifetime License with stable offline use.
• Free PDF User Guide and access to VCCarTool technical support for setup, troubleshooting, and software updates.

Tech2win Software

Tech2Win is an offline diagnostic software that emulates the original GM Tech2 handheld scan tool directly on a PC. It is designed for vehicle diagnostics, data reading, and ECU programming for GM, Chevrolet, and VinFast vehicles, offering full functionality without the need for physical Tech2 hardware.

Software Details

• Version: 2.3.70
• Type: Offline diagnostic and programming software
• Interface: OBD2 connection
• License: Lifetime
• Supported Until: 2014
• Certificate Required: Yes
• Download & Installation Size: 1GB download + 1GB installation

Key Features

• Fault Code Reading & Clearing: Identify and reset DTCs easily from the software interface.
• Live Data & Datastream Monitoring: Observe engine, transmission, and control module parameters in real time.
• Actuator Control Tests: Activate components such as injectors or relays to verify functionality.
• ECU Replacement & Reprogramming: Supports basic module replacement and setup for supported vehicles.
• User Interface Emulation: Mirrors the original GM Tech2 tool, allowing technicians to operate in a familiar layout.

Vehicle Coverage

• Supports GM, Chevrolet, and VinFast vehicles up to model year 2014.
• This software is ideal for workshops servicing pre-2015 GM-based platforms.

Compatible Diagnostic Devices

Tech2Win works seamlessly with GM-approved and J2534-compatible devices, including:

• MDI
• MDI2
• VCM 2
• VCX SE (license required)
• ALLSCANNER
• VCX NANO (license required)

These interfaces ensure stable connection via OBD2 and deliver full diagnostic functionality.

Tech2Win v2.3.70 provides an efficient and affordable way to diagnose and program GM, Chevrolet, and VinFast vehicles directly on your PC. It replicates the full functionality of the original Tech2 device, saving costs and simplifying workflow for professional technicians.

Techline Software

Techline Connect is the official diagnostic and programming platform for General Motors (GM), Chevrolet, and VinFast vehicles from 2009 to the present. It integrates all essential GM service applications—diagnostics, programming, and technical information—into a single, modern interface.

Software Details:

• Name: Techline Connect
• Version: 2.36
• Type: Hybrid software (Offline operation with online login for full access)
• Functions: Diagnostics, ECU Programming, Module Replacement, Live Data Analysis
• Supported Years: 2009 → Present
• License: Lifetime (Login account required)
• Connection Interface: OBD2
• Communication Method: Via OBD2 cable or J2534 device
• Certificate Requirement: Yes – software requires authorized certificate and dealer login access

Key Features

• Full Diagnostic Functionality: Read and clear DTCs, monitor live data (Datastream), and perform system tests across all GM control units.
• ECU Programming & Replacement: Supports programming of new or replacement control modules through online login.
• Dealer Login Access: Enables professional-level diagnostics and programming with official GM server authentication.
• Vehicle Communication Interface (VCI) Support: Works with OEM and J2534-certified devices for stable OBD2 connectivity.
• Integrated User Interface: Combines multiple GM service applications (GDS2, SPS2, Tech2Win, etc.) into a single control center.
• Multi-Language Support: English, Vietnamese, German, Dutch, Italian, Portuguese, Russian, Thai, Chinese, Korean, Japanese, Spanish, and French.

Supported Vehicle Brands: GM (General Motors), Chevrolet, VinFast

Note: Certain Vauxhall/Opel models (UK production) may have limited support; updates are under development.

Supported Diagnostic Devices

Techline Connect is compatible with a wide range of J2534 interfaces, including:

• GM MDI
• GM MDI 2
• AUTEL
• VCM 2
• JLR Mongoose
• VCX SE (requires device license)
• ALLSCANNER
• VCX NANO (requires device license)
• Online Pro Flash (JAD)
• VNCI MDI2

System Requirements for Installing Combo GM Diagnostic Software

Device: Laptop or PC

Minimum Specifications:

• Intel Core i5 (6th Gen) or higher
• 8GB RAM or more
• SSD 256GB or higher
• Windows 10 or Windows 11
• At least 100GB of free storage space for installation and operation

Recommended Computers:

• Panasonic CF-19
• Panasonic CF-53
• Panasonic CF-54
• Panasonic CF-D1
• Lenovo ThinkPad L440

You can see more at: Car Diagnostic Laptop

These specifications ensure smooth operation and compatibility with diagnostic and repair tasks.

Benefits When Using the Software Package from VCCarTool

• Free PDF Guide for Beginners – Comprehensive instructions to help you get started easily.
• Private Technical Support Group – Direct assistance from at least 3 professional technicians.
• Free Warranty – Lifetime support and free warranty if any software issues occur.
• Free Database for Coding & Programming – Access exclusive files and data collections.
• Free Trial of Electrical Wiring Diagram Software – Enhance your diagnostic efficiency with an additional bonus tool.

Warranty and Delivery Method

• Warranty Policy: Each software package purchased from VCCarTool comes with 12 warranty. If any software errors occur during installation or use, our technical team will assist and reconfigure it free of charge via remote support.
• Delivery Method: Software installation is performed remotely via TeamViewer or UltraView. After completing your order, our support team will contact you to schedule an installation session and ensure the software runs smoothly on your device.

The GM Diagnostic Software Combo (Tech2Win + Techline Connect) is an essential toolkit for technicians and workshops working with GM, Chevrolet, and VinFast vehicles. Combining both offline and online diagnostic capabilities, this package allows users to perform full-system diagnostics, programming, and ECU replacement efficiently.

When purchased from VCCarTool, you not only receive a complete and lifetime-licensed software package, but also benefit from expert remote installation, warranty support, and after-sales assistance — ensuring seamless operation and maximum reliability in every diagnostic task.

If you need technical assistance or want to purchase the combo, please contact us via WhatsApp at +1 (901) 414-1927 for the best support.