Tech-2 for GM is the same tester for GM Technicians use to diagnose GM vehicles. And it caters to engineers who asked me how to GM Tech2 Self-test. Now follow me step by step:
a.Insert GM card into car slot of Tech2
b.Connect self-test adapter with Tech2,next power on machine
c.Enter main menu then choose F4:tool options
d.Choose F3:Self Test
e.Press “Exist”to continue
f.Choose Tech2 Self Test
g.Automated VCI
h.VCI Self Test result
Selt-test ends.
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