GMC Tech 2 User Manual page 9

NOTICE
• DO NOT clasp battery clamps together when connected simultaneously to the vehicle's 12 volt
cigarette lighter or power supply. Reverse polarity in the vehicle's cigarette lighter may be present.
Damage could occur to the Tech 2 or to the vehicle.
• If power is applied to the Tech 2 and the display remains blank, reverse polarity in the cigarette
lighter may be present. Damage to the Tech 2 could occur. DO NOT connect the DLC cable to the
vehicle. Verify that the center contact of the vehicle's cigarette lighter has +12 volts and that the outer
contact is grounded.
• Turn off the power before inserting or removing the PCMCIA card. Continual removal and reinsertion
of this card is not recommended.
• Align all cards and components carefully before inserting them into the Tech 2.
• Make sure all cables and adapters are firmly connected before starting to use the Tech 2.
• Always read the instructions completely before attempting a new procedure.
• The RS-232 and RS-485 ports must not be connected to a direct phone line as the Tech 2 was not
designed for this method of communication.
• Do not place the Tech 2 so that the tilt stand can make contact with the vehicle battery terminal as
this could short out the battery.
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INTRODUCTION
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