Power up the GM Tech 2 using either:
- The power jack connector at the bottom of the Tech 2 unit , or
- The DLC cable power jack connector behind the area where various DLC adapters are connected.
Proper grounding may not be present if power source is connected directly to Tech 2.
- When the Tech 2 is connected to the DLC of an appropriate vehicle, the vehicle battery supplies power.
- When the Tech 2 is not connected to the vehicle’s DLC, the DLC cable power jack connector accepts power from the following:
- Cigarette lighter power cable
- Battery power cable
- NAO or Universal power supply
If the DLC and external power source are both connected, the power jack connection supplies current to the Tech 2. In this instance, power from the vehicle’s DLC connector is automatically disconnected from
the Tech 2 internal power supply.
I Cigarette Lighter Power Cable
This cable contains one fuse and two connectors. It has a cigarette lighter plug at one end and a power jack at the other ( Figure IV-1). The power jack connects to the Tech 2 DLC cable and carries power to the
Tech 2 when the selected vehicle adapter does not provide power.
II Battery Power Cable
This cable has red and black battery clamps attached to one end and a power jack attached to the other.
The power jack connects to the Tech 2 DLC cable and carries current to the Tech 2 when the selected vehicle adapter does not provide power and there is no cigarette lighter adapter available.
NOTE : This cable contains two 3-amp fuses. If you need to replace them, use identical 3-amp fuses.
NAO Power Supply
North American electrical supply is normally 110 volts. The Tech 2 base kit includes an external AC to DC
power supply with 110 V AC/60 Hz input (Figure IV-2). Output is 12 volts at 1.5 amps.
Universal Power Supply
Wherever 220 current is required, use the 110/220 V AC/50 Hz external AC to DC power supply A specific power cord is provided to permit connection to your area’s power cord receptacle.
NOTE: To avoid personal injury due to electric shock, use grounded outlet only. The NAO power supply is for North American use only. The Universal power supply is for use outside North America.
These devices are intended for indoor use only.
Power Cord Plugs
Various types of car diagnostic tool power cord plugs are available for the Tech 2, depending your geographic location Table showing various types of power cord plugs for the Tech 2.