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MongoosePro GM 2

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The new GM3 will be compatible with CANFD, Tech2WIN, GDS2 and SPS. Release date for the GM3 has not been announced.


The original GM2 is still available.

* GM2 is compatible with Tech2WIN and GDS2 and SPS. Not compatible with CANFD.

Grow your business and retain customers with the MongoosePro® GM 2 by offering the same flash programming and diagnostic services offered by the dealership!

The MongoosePro® GM 2 is a compact and rugged, SAE J2534-1 and J2534-2 compliant "Pass Thru" vehicle communication interface that connects a Windows-based computer to a vehicle allowing you to perform ECU reprogramming and diagnostics with OE software.

What can it do?
The MongoosePro® GM 2 is compatible with GM's Tech2WIN and GDS2 and SPS which provide coverage for:
• OEM Diagnostics: 1996 to current
• Emissions Reprogramming: 1996 to current
• Body Control Reprogramming: 1996 to current

What's in the box?
• MongoosePro® GM 2  interface with 6-ft cable (Windows-based computer to vehicle)
• 1-year warranty
• Free technical support (see below)
The MongoosePro® cable is just one of several components required to successfully flash a vehicle. Please refer to “What do I need to reprogram GM vehicles?", below.

Where can I get help?
Drew Tech provides the most comprehensive and knowledgeable tech support for J2534.
• Free firmware and driver updates for Mongoose hardware.
• Free phone and email technical support.
• Free desktop software, "J2534 Toolbox", includes videos and other help tools while also providing the latest J2534 news for each OE to your desktop and guides you thru reprograming and after-flash routines such as GM Crank Angle Relearn, VIN programming, read/clear DTC, generic OBDII Diagnostics.

What do I need for scan tool diagnostics and reprogramming of GM vehicles?
- Windows-based computer, such as these, click here then select “Dealer Infrastructure Guidelines”.
- Steady Internet connection.
- Subscription to OE software, sold separately, click here.
- J2534 compliant device such as a Mongoose or CarDAQ.
- Battery maintainer (programming power supply).

In less than six minutes, the video below gives you an excellent overview about how to get started with dealer level flash programming so your shop can keep the job in-house, grow profits and increase customer satisfaction.


GDS2 supports MongoosePro GM II

GDS2 (v11.0.09412 and later) supports the MongoosePro GM II and the CarDaq-M.

The GDS2 software package includes the data bus diagnostic tool. Using the data bus diagnostic tool, the MDI will allow you to see voltage levels on the data bus, the Mongoose will not. The Mongoose will run the data bus diagnostic tool, but only partially.




Subscription Requirements for MongoosePro GM II


Subscriptions for TIS2WEB, Tech2WIN, and GDS2 are sold separately and must be purchased from AC Delco.


Visit AC Delco's site.











OE Diagnostics...
This video begins with a review of J2534 with NASTF director Skip Potter and then at 9:50 an excellent overview of the tools and equipment needed to perform diagnostics via J2534 is presented.
Toyota TechStream begins at 21:30.
GM GDS2 at 32:50.
Volkswagen ODIS at 41:10.



OE Programming...


Using with GDS 2...



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