2007 - 2014 Corvette: GM TechLink: Quick Reference Guide for GDS2 Diagnostics

Subject:    Quick Reference Guide for GDS2 Diagnostics
Model and Year:  2007 - 2014 Chevrolet Vehicles
Source:  GM TechLink
Page Number:   NA
Date:  January 22, 2015

A single-page, quick reference guide has been released to help technicians quickly determine when to use the Tech2 diagnostic scan tool (for older GM vehicles) and when to use the Global Diagnostic System 2 (GDS2) — the latest PC-based diagnostic software — and an MDI/VCI tool.

Click below (Fig. 3) to view the quick reference guide.

Quick Reference Guide for GDS2 Diagnostics  

Fig. 3

Technicians should feel free to bookmark this link or print the guide and keep it as a quick reference.

The transition of diagnostic scan tools from the Tech2 to GDS2 requires technicians to understand which technology and device to connect to each GM vehicle. This may be especially tricky during the transition model years between 2010 and 2013 when some vehicles required the Tech2 scan tool and others required GDS2 and an MDI/VCI tool.

GM North American Tech2 software updates concluded in the 2013 model year. For 2014, all North American vehicles are supported with GDS2.

If a technician uses the wrong tool on a vehicle, it could result in a “no communication” error message, an inaccurate reading, or the device may not return any useful data. The GDS2 guide can help save repair time by knowing in advance which software and device to use.

- Thanks to Chris Henley, Kevin Fondaw

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