As a repair technician who mainly fix GM car like: Buick, Cadillac, Chevrolet, GMC and Pontiac, I guess questions may come to you asking: How to clear the service engine light on a GM car with a scan tool? And how to program a GM car model with a specific tool?
For these quetions, I think you will agree with my suggestion to use GM tech2 to read & erase the trouble codes; TIS2000 dongle hardware key to work with GM tech2 and realize the function of programming; and get an additional card to support programming the other cars models beside GM, like OPEL,SAAB,ISUZU,SUZUKI.
GM tech2 for turning off check engine light
As a specialized test tool that most GM technicians will choose for GM vehicles.It contains the Vetronix Tech 2 with Authentic GM software. And supply an on-board diagnosis on all GM systems from 1992 to 2010.
You can learn more details at:
TIS2000 and dongle key support programming
You need an TIS2000 to support programming GM cars normally from 1992 to 2007.
Additional 32MB card for OPEL, SAAB, ISUZU, and SUZUKI
Chinasinoy.com supply two kinds of 32 GM card. One 32 GM card used for SABA, OPEL, GM and ISUZU, and another 32MB card used for GM,OPEL,SAAB,ISUZU,SUZUKI.The cards work together with tech 2. 32MB card for GM tech 2 includes a 32MB PC Card loaded with the latest release GM Software.
You can choose one software to be loaded to this card.