GM tech 2 Scanner Self Test
If you want to self test your GM tech 2 scanner , please follow these steps:
1. Insert GM card into card slot of Tech 2
2. Insert the self test adapter with the main unit and start the main unit.
3. Enter the menu, and choose “F4 tool options”
For more information about GM tech 2 scanner, please link to http://www.obd2tool.com/goods-1568-GM+Tech2+GM+Scanner+-CANdi++TIS+(Works+for+GMSAABOPELSUZUKIISUZUHolden).html