GMC Tech2 - How to Connect the Tech2 to a Computer; Typical Tech2 Connection to a Computer (Rear View)

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General Motors Tech2 User Guide

Notice: Always use the Tech2 NAO power supply (P/N 300113) when connecting the

Tech2 to a computer. It is also acceptable to connect the power cable to the vehicle

cigarette lighter.

How to Connect the Tech2 to a Computer

Follow the steps below for the typical Tech2 connection to a computer.

1. Plug the serial port adapter (P/N TA00040) into the serial port marked “A” or “1” on the

back of the computer or to the USB port using the USB serial adapter.

2. Plug the Tech2’s RS-232 cable into the serial port / USB port adapter and connect the

appropriate power supply.

3. After power is supplied to the Tech2 and the [PWR] button is pressed, the Tech2 start-

up display should appear on the Tech2 screen.

Note: Not all USB to serial port adapters are compatible with the Tech2. ACDelco

recommends using the Keyspan brand USB to serial port adapter.

Typical Tech2 connection to a computer (rear view)