GMC Tech 2 User Manual
Tech 2 User’s Guide
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CONTENTS
I. Introduction
II. Care & Cleaning
III. Getting Started
E-mail:autocardiag@gmail.com
Skype:Marshall.obd2
Whatsapp:86-13476108995
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IV. Power Supply
V. Adapters
VI. Troubleshooting
VII. Software
©2005 GM Service and Parts Operations
Tech 2 User’s Guide
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The Tech 2 User ’s Guide provides a comprehensive overview of the Tech 2 scan tool.
Everything contained in this manual is based on the latest product information available at the time of
publication. The right is reserved to make changes at any time without notice.
No part of this publication may be reproduced, stored in any retrieval system, or transmitted in any form
by any means, including but not limited to electronic, mechanical, photocopying, recording, or otherwise,
without the prior written permission of GM Service and Parts Operations. This includes all text, tables,
illustrations, and charts.
Requests for permission should be sent to:
General Motors Corporation
Service and Parts Operations
Product Engineering
37350 Ecorse Road
Romulus, MI 48174-1376
U.S.A.
© 2005 GM Service and Parts Operations. Made in the U.S.A. All rights reserved.
® Tech 2 is a registered trademark of General Motors Corporation.
GM
Ser vice and Par ts Operations
2005 Tech 2 User’s Guide i
Customer Support Overview
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To obtain assistance with a question or problem concerning the operation of your Techline product and its
attached products, or to arrange for warranty and non-warranty repairs, telephone the GM-Techline
Customer Support Center. To order replacement parts, contact GM Dealer Equipment or your customer
support representative for GM-Techline.
Before Calling
Before making a call to the Customer Support Center or GM Dealer Equipment, be sure to have the
following information ready:
• Dealership name, address and dealer code number
• Serial number of equipment or tool
• Name, part number, and quantity of the item to be requested
• Telephone number where the technician may be reached
Prepare a brief description of the problem:
• Tell when the problem occurred
• List any error codes displayed
• Tell what accessories were being used when the problem occurred, and vehicle information
Please see next page...
2005 Tech 2 User’s Guide ii
Making the Call
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The GM Service and Parts Operations Techline Customer Support Center telephone lines operate from
8:00 a.m. to 8:00 p.m. (Eastern Standard Time) Monday to Friday.
In the United States and Canada to contact Customer Support, dial:
• English: 1-800-828-6860 (option 1) or 1-888-337-1010 (option 3)
• French: 1-800-503-3222
• Spanish: 1-248-265-0840 (option 2)
• Fax line: 1-248-265-9327*
To call GM Dealer Equipment, dial 1-800-GM-TOOLS (1-800-468-6657).
International customers can send questions or comments by fax, (U.S. country code) 248-265-9327, or
use the following telephone numbers:
Latin America 1-248-265-0840 Asia Pacific 045-562-4483
Europe 41-41-766-2940 Australia 613-9544-6222
A GM-Techline Customer Support representative will come on the line or respond by fax to answer
questions, make suggestions, and take repair and parts orders. To make sure every problem is resolved to
the satisfaction of the caller, the GM-Techline Customer Support representative will record each problem,
question, or suggestion into a special problem tracking system. Any problems that cannot be resolved over
the phone will be directed to the appropriate group for resolution.
* You may also send a GM-Techline Product Assistance fax form to the Customer Support Center.
2005 Tech 2 User’s Guide iii
Declaration of Conformity
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According to ISO/IEC Guide and EN 45014,
Manufacturer’s Name: Vetronix Corp.
Manufacturer’s Address: 2030 Alameda Padre Serra
declares that the product,
Product Name: Tech 2
Model Number(s): Z1090A
Product Options: ALL
conforms to the following product specifications:
Safety: IEC 1010-1: 1990 + A1 / EN 61010-1: 1993
EMC: CISPR 11: 1990 / EN 55011 1991 - Class A
Santa Barbara, CA 93103
EN 50082-1: 1992
IEC 801-2: 1991 / prEN 55024-2 1992 - 3kV CD, 8kV AD
IEC 801-3: 1984 / prEN 55024-3 1991 - 3V/m
IEC 801-4: 1988 / prEN 55024-4 1992 - 0.5kV
Signal Lines. 1kV Power Lines
Supplementary Information
This is a Class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the
EMC Directive 89/336/EEC.
Location: Santa Barbara, California
Date: 3 / 19 / 01
QA Manager: David Parker, Product Regulations
2005 Tech 2 User’s Guide iv
Software License Agreement
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Please read this license agreement carefully before proceeding to operate the equipment. Rights to the
software are offered only on the condition that the customer agrees to all terms and conditions of the
license agreement. Proceeding to operate the equipment indicates your acceptance of these terms and
conditions:
1. USE: Customer may use the software only on the computer system on which it was originally installed. Customer may not reverse
assemble or decompile software unless authorized by law.
2. OWNERSHIP: Customer agrees that it does not have any title or ownership of the software, other than ownership of the physical
media. Customer acknowledges and agrees that the software is copyrighted and protected under the copyright laws. Customer
acknowledges and agrees that the software may have been developed by a third party software supplier named in the copyright
notices included with the software, who shall be authorized to hold the Customer responsible for any copyright infringement or
violation of this agreement.
3. TERMINATION: General Motors may terminate this software license for failure to comply with any of these terms provided GM has
requested Customer to cure the failure and Customer has failed to do so within thirty (30) days of such notice.
Limited Warranty
SOFTWARE: Vetronix warrants for a period of ninety (90) days from the date of purchase that the Vetronix software product
will execute its programming instructions when properly installed. Vetronix does not warrant that the operations of the
Vetronix software will be uninterrupted or error free. In the event that this Vetronix software product fails to execute its
programming instructions during the warranty period, the remedy shall be a replacement of such software product.
LIMITATION OF WARRANTY: Vetronix makes no other express warranty, whether written or oral with respect to this product.
Any implied warranty of merchantability or fitness for or a particular purpose is limited to the 90-day duration of this written
warranty. Some states or provinces do not allow limitations on how long an implied warranty lasts, so the above limitations or
exclusion may not apply to you.
EXCLUSIVE REMEDIES: The remedies provided above are Customer’s sole and exclusive remedies. In no event shall
Vetronix be liable for any direct, indirect, special, incidental or consequential damages (including lost profit) whether based
on warranty, contract, tort or any other legal theory.
2005 Tech 2 User’s Guide v
INTRODUCTION
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Using This Manual
To increase their effectiveness with the Tech 2, users should familiarize themselves with the format and
information contained in this guide.
IMPORTANT
Tech 2 figures and illustrations are hyperlinked to the text of this manual. To view a figure, simply click
on its description, which is shown in blue text. After viewing the figure, click on the rainbow-colored
arrow at the lower left-hand corner of the screen to return to your place in the manual.
Vehicle System Familiarity
While the Tech 2 is a powerful tool, it cannot replace knowledge and skill. To obtain maximum benefit from
the Tech 2, service technicians must have a complete understanding of vehicle systems.
When using the Tech 2 to diagnose a vehicle, it is recommended that service technicians also refer to the
service manual and the latest service bulletins.
Disclaimer
The Tech 2 is designed for use by trained service personnel only. It has been developed for the sole
purpose of diagnosing and repairing automotive systems with electronic controls and interfaces.
Every attempt has been made to provide complete and accurate technical information based on factory
service information available at the time of publication. However, the right is reserved to make changes at
any time without notice.
2005 Tech 2 User’s Guide I - 1
Things You Should Know
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CAUTION: EXHAUST GAS
When performing any checks with the engine running in an enclosed space such as a garage, ensure proper
ventilation. Never inhale exhaust gases; they contain carbon monoxide—a colorless, odorless, extremely dangerous
gas that can cause unconsciousness or death.
CAUTION: PARKING BRAKE
To help avoid personal injury, always set the parking brake securely and block the drive wheels before performing
any checks or repairs on the vehicle.
CAUTION: SPARKS
The Tech 2 uses parts that can produce arcs or sparks. When used in a garage environment, the Tech 2 must be
located not less than 18 inches (460 mm) above the floor.
INTRODUCTION
Please see next page...
2005 Tech 2 User’s Guide I - 2
NOTICE
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• 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.
INTRODUCTION
• 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.
2005 Tech 2 User’s Guide I - 3
INTRODUCTION
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FCC Compliance
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy. If not installed and used in
accordance with the instruction manual, it may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference’s in which case the
user will be required to correct the interference at his or her own expense.
VDE Certification (for European Use)
This equipment complies with the requirements of VDE 0871/6.78. Improper use or maintenance neglect
may cause unacceptable radio or TV interference.
2005 Tech 2 User’s Guide I - 4
SECTION I INTRODUCTION
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Tech 2 Overview
The Tech 2 is a hand-held computer designed to aid in diagnosis and repair of automotive systems with
electronic controls and interfaces.
Figure I-1
Hardware
The Tech 2 has been designed as a rugged, shop-ready tool by having:
• A sturdy case
• A sealed keypad
• Heavy-duty cables and connectors
External features of the Tech 2 (front view)
You can expect years of trouble-free service if you take reasonable care of the Tech 2 and follow the
maintenance procedures outlined in Section II.
Figure I-2
Table listing Tech 2 base kit part numbers and descriptions (see Section III for illustrations)
Figure I-3
Table listing part numbers for Tech 2 adapters and accessories (see Sections V and Section VII)
Video clip 1 (38 seconds)
90-degree adapter (J42598-20) installation demo*
*After viewing, click the X in the upper right-hand corner of the video window to close.
2005 Tech 2 User’s Guide I - 5
SECTION I INTRODUCTION
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Power Supply (see Section IV)
The Tech 2 can be powered from:
• The automobile battery power cable
• The cigarette lighter power cable
• The Tech 2 power supply
• The DLC (Data Link Connector) connection in most vehicles
Figure I-4
Table listing part numbers for Tech 2 power supplies and cables (see Section IV)
Commands
The Tech 2 prompts you to enter commands via the membrane keypad for:
• Retrieving and viewing diagnostic information
• Selecting self tests
• Performing vehicle diagnostics
Data Storage
The Tech 2 contains electronic components called PCMCIA (Personal Computer Memory Card Industry
Association) cards, which store diagnostic programs. The Tech 2 can be updated as vehicle models
change by reprogramming the PCMCIA card via the RS-232 connector.
Figure I-5
Table showing the PCMCIA kit part number and description
2005 Tech 2 User’s Guide I - 6
SECTION I INTRODUCTION
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Mechanical Dimensions
The dimensions of the Tech 2 are as follows:
• Width – 6.1 inches (155 mm)
• Height – 11.8 inches (300 mm)
• Depth – 2.0 inches (55 mm)
• Weight – 2.2 pounds (1.0 kg)
Environmental Specifications
CONDITIONS SPECIFICATIONS
Temperature Operating: 0 to 40°C (32 to 104°F)
Relative Humidity Operating: 15% to 95% at 40°C (non-condensing)
Non-operating: -40 to 70°C (-40 to 158°F)
Non-operating: 90% at 65°C (non-condensing)
2005 Tech 2 User’s Guide I - 7
SECTION I INTRODUCTION
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Warranty
The Tech 2 is warranted against defects in materials and workmanship by the manufacturer for 24 months
beginning five days after the date of shipment to your service center.
If your Tech 2 must be sent in for repair, a replacement will be sent to your dealership prior to the return of
the failed Tech 2. Use the package that the replacement arrives in to return the defective unit. You can
contact Customer Support at 1-800-828-6860 for the exact exchange procedure. If notification of defect is
received during the warranty period, the part listed in figures I-2, I-3, I-4, or I-5 that is defective will be
replaced. You must return the defective unit as directed, or you will be charged for the replacement.
Important: This warranty does not cover any part that has been abused, altered, used for purpose other
than which it was intended, or used in a manner inconsistent with instructions regarding use. This
includes, but is not limited to, removal of any Tech 2 screws.
2005 Tech 2 User’s Guide I - 8
SECTION II CARE & CLEANING
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Care and Cleaning
After using the Tech 2, a few simple steps will insure that you get the most life out of this diagnostic tool.
NOTICE
Do not spray or pour cleaner anywhere on the Tech 2. If the Tech 2 should become dirty, clean it with a
mild detergent or hand soap. Avoid using harsh solvents such as petroleum-based cleaning agents:
acetone, benzene, trichlorethylene, etc. Harsh solvents can etch Tech 2 plastic surfaces.
Although the Tech 2 is water resistant it is not waterproof, so be sure to thoroughly dry off the Tech 2
prior to usage and/or storage.
Maintenance of the Tech 2 requires periodic inspection and cleaning of:
• The display window
• The keypad
• The cable assemblies and connectors
Make sure the Tech 2 is not connected to a vehicle or other power source and follow the cleaning
procedures detailed below.
Please see next page...
2005 Tech 2 User’s Guide II - 1
SECTION II CARE & CLEANING
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Cleaning the Display
The display collects dust and grime during normal use. Occasionally wipe the screen with a clean, soft,
static-free cloth. Remove stubborn stains by applying a non-abrasive glass cleaner to a soft cloth and wipe
cloth across display area.
Cleaning the Keypad
Clean the keypad with a non-abrasive cleaner. Apply a small amount of cleaner on a soft cloth and wipe
cloth across keypad area.
Maintaining the Cable Assemblies and Connectors
Inspect cable assemblies during connection and disconnection to components. Watch for any cuts or
abrasions along the cables. Check the connectors and connector pins for grease, dirt and corrosion. If
contaminants are present, remove them with a mild soap solution.
Storing the Tech 2
• Store the Tech 2 away from solvents and other liquids. It is NOT moisture proof.
• Store the Tech 2 away from direct sunlight. Ultraviolet and infrared light will darken the display.
• Store the Tech 2 in its plastic case. Otherwise, the high-impact plastic cover could become scratched.
2005 Tech 2 User’s Guide II - 2
SECTION III GETTING STARTED
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Getting Started
This section covers all Tech 2 vehicle applications. Therefore, some of the information provided may not
be required for individual applications.
The Tech 2 contains two serial communication ports: the RS-232 and the RS-485. Use the RS-232 port for
downloading data from another computer to the Tech 2. The RS-485 port is currently not used.
The Tech 2 also contains two PCMCIA ports, a power jack connector, and a Vehicle Communications
Interface (VCI) connector. One of the PCMCIA slots contains a memory card with diagnostic information.
The power jack accepts power from the AC/DC power supply, battery, or cigarette lighter power cable. The
VCI connector accepts the DLC cable or DLC loopback adapter.
Figure III-1
Identification of the Tech 2’s external ports
NOTICE
When using the Tech 2 for vehicle communications, the power jack must be connected to the Tech 2
DLC cable for proper grounding.
2005 Tech 2 User’s Guide III - 1
SECTION III GETTING STARTED
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Initial Hardware Installation
The Tech 2 hardware initial installation requires the following seven tasks:
1. Remove the RS-232 loopback adapter (P/N 3000112) from the storage case (P/N 3000116). Plug it into
the RS-232 port (Figure III-2).
2. Attach the Tech 2 DLC cable (P/N 3000095) to the VCI connector (Figure III-3).
3. Locate the DLC loopback adapter (P/N 3000109) in the storage case. Attach it to the DLC cable
(Figure III-4).
4. Locate the NAO (P/N 3000113) or Universal (P/N 3000115) power supply and appropriate power cord in
the storage case. Insert the power jack into the Tech 2 DLC cable (Figure III-5) or into the bottom of the
Tech 2 next to DLC cable connector (Figure III-6).
5. Turn on power by pressing the PWR button located on the Tech 2 keypad.
6. Tech 2 hardware will be verified automatically by the POST test. (For information on this program, refer
to Section VI - Troubleshooting.)
7. Disconnect the RS-232 loopback adapter, the power supply, and the DLC loopback adapter and return
to the Tech 2 storage case (Figure III-7).
Figure III-2 – Connection of the RS-232
loopback adapter to the RS-232 port
Figure III-3 – Connection of the DLC cable
to the VCI connector
Figure III-4 – Connection of the DLC
loopback adapter to the DLC cable
Figure III-5 – Connection of the power jack
to the DLC cable
Figure III-6 – Connection of the power jack
to the bottom of the Tech 2
Figure III-7 – Disconnection of the RS-232
loopback adapter, DLC loopback adapter,
and the power supply
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SECTION III GETTING STARTED
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PCMCIA Card Removal
The PCMCIA Card is accessed by opening the hinged door located at the top of the Tech 2. The card is
found in the upper slot. The lower slot will be used for future enhancements. Press the arrow button
(located beside the slot) to eject the card (Figure III-8).
Figure III-8
Ejection of PCMCIA card
PCMCIA Card Insertion
The PCMCIA Card is keyed with two notches on one side and one notch on the other side (Figure III-9).
Make sure that the notches are in the correct position before inserting the card. Slowly insert the card
(Figure III-10) until it clicks into place.
Figure III-9
PCMCIA card keying
Figure III-10
PCMCIA card insertion
NOTICE
Use only GM Service and Parts Operations supplied PCMCIA cards. The PCMCIA slots are designed
to interface with 5-volt cards. Permanent damage to Tech 2 could occur if a 3.3-volt card is inserted into
the Tech 2 PCMCIA connector.
2005 Tech 2 User’s Guide III - 3
SECTION III GETTING STARTED
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Vehicle Communications Interface Module Removal
The Vehicle Communications Interface (VCI) module is located at the lower end of the Tech 2. Removal of
this module is required only if the VCI needs to be updated or replaced.
To remove the module disconnect Tech 2 DLC cable if attached, move the lever (Figure III-11) all the way
toward the right side of the Tech 2 (Figure III-12). The VCI module can now be removed.
Figure III-11
VCI module removal
Figure III-12
VCI module removed
Hand Strap Adjustment
The Tech 2 velcro hand straps may be adjusted for individual needs as shown in the illustration below
(Figure III-13).
Figure III-13
Tech 2 hand strap adjustment
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SECTION III GETTING STARTED
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Tech 2 Keypad
The Tech 2 keypad consists of six major keypad operation areas (Figure III-14):
1. Control keys (SHIFT, PWR)
2. Soft keys
3. Selection (arrow) keys
4. Action keys (YES, NO, ENTER, EXIT)
5. Function keys (F0 to F9)
6. Help (?) key
Control Keys
The [PWR] key is used to turn the Tech 2 on or off (Figure III-15). The status indicator light above this key
will be illuminated green when the Tech 2 is operational.
The [SHIFT] key is used with the up and down arrow keys to change screen brightness and contrast
(Figure III-15). To adjust screen brightness and contrast, perform the following:
• Press the [SHIFT] key once (amber status indicator light above [SHIFT] should light up).
• Use up and down arrows to adjust screen brightness and contrast:
Press up arrow key to increase screen brightness and contrast.
Press down arrow key to decrease screen brightness and contrast.
• Press [SHIFT] key again when desired brightness is reached (status indicator light above [SHIFT]
should now be off).
The Tech 2 should return to normal operation after following the above steps.
Figure III-14
Tech 2 keypad
Figure III-15
Location of control keys
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SECTION III GETTING STARTED
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Soft Keys
Four soft keys are located directly below the Tech 2 screen (Figure III-16). The soft keys correspond
directly to the four possible selection boxes found at the bottom region of the Tech 2 screen. These
selections may change from screen to screen and are under the control of the application software. To
make a screen selection, press the corresponding soft key. In the example shown in Figure III-17, the first
soft key was pressed to select [Display Time].
Figure III-16
Location of soft keys
Figure III-17
Soft key selection for display time
Selection Keys
The Tech 2 selection keys are four directional arrow keys (Figure III-18). Press the arrow keys to move the
highlighted area to a selection on the screen (Figure III-19) or to scroll the screens if more than one. Once
the desired selection is highlighted, press [ENTER] to activate the selection.
Figure III-18
Location of selection keys
Figure III-19
Positioning the highlighted area to make a selection
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SECTION III GETTING STARTED
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Action Keys
Action keys are used to respond to a specific question, initiate an action, or to exit from the Tech 2
program (Figure III-20). Specific “yes or no” questions will often appear on the Tech 2 screen. The [YES]
and [NO] keys are used to respond to these questions. Either of the two [ENTER] keys may be pressed to
activate a menu selection. Either of the two [EXIT] keys may be pressed to leave the current Tech 2
screen and return to a previous screen.
Figure III-20
Location of action keys
Function Keys
Ten function keys (F0 to F9) are located on the Tech 2 keypad (Figure III-21). A function key may be
pressed to initiate a specific Tech 2 function. In some cases the function keys are used for numeric data
entry. The arrow keys and [ENTER] may also be used to initiate a function selection, but this will require
multiple keystrokes as opposed to only one.
Figure III-21
Location of function keys
Help Key
The help key [?] may be pressed at any time to obtain a help screen (Figure III-22). The help screen will
provide specific information relating to the operation of the Tech 2.
Figure III-22
Location of help key
2005 Tech 2 User’s Guide III - 7
SECTION III GETTING STARTED
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Tech 2 Connection to Vehicle
The Tech 2 receives power through the DLC cable connection to vehicles equipped with On-Board
Diagnostics (OBD II) (Figure III-23). In the case of vehicles not equipped with OBD II, an external power
source such as a vehicle cigarette lighter must be used (Figure III-24).
Figure III-23
Attaching the Tech 2 to OBD II equipped vehicles
Figure III-24
Attaching the Tech 2 to non-OBD II equipped vehicles
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SECTION III GETTING STARTED
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Tech 2 Connection to Techline Terminal
At times the Tech 2 will need to be connected to a terminal. Reasons for connection to a terminal include
the following:
• Transfer of vehicle data (calibration information, “snapshot,” etc.) from the Tech 2 to the terminal
• Transfer of vehicle calibration data from the terminal to the Tech 2
• Transfer of data (software update, etc.) from the terminal to the Tech 2
Before connecting Tech 2 to the terminal, the following steps should be taken:
• Make sure the RS-232 cable (P/N 3000110) is attached to the Tech 2 RS-232 port located on the left
side of the Tech 2 (Figure III-1 and Figure V-3).
• Make sure the appropriate power supply is connected to the DLC cable power jack connector, or to the
power jack connector at the bottom of the Tech 2 (Figure III-25).
• Make sure the PCMCIA card is fully inserted into the upper slot at the top of the Tech 2 (Figure III-8,
Figure III-9 and Figure III-10).
• Make sure the CANdi module is not connected to the Tech 2.
NOTICE
Always use the Tech 2 NAO power supply (P/N 3000113) when connecting the Tech 2 to a terminal. It is
also acceptable to connect the power cable to the vehicle cigarette lighter receptacle.
Figure III-25
Power supply connections for communication with computer terminals
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SECTION III GETTING STARTED
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How to Connect the Tech 2 to a Computer Terminal
Follow the steps below and refer to Figure III-26, which illustrates the typical Tech 2 connection to a
computer terminal.
1. Plug the serial port adapter (P/N TA00040) into the serial port marked “A” or “1” on the back of the
computer terminal or to the USB port using the USB serial adapter.
2. Plug the Tech 2’s RS-232 cable into the serial port / USB port adapter and connect the appropriate
power supply.
3. After power is supplied to the Tech 2 and the [PWR] button is pressed, the Tech 2 start-up display
should appear on the Tech 2 screen (Figure III-27).
Figure III-26
Typical Tech 2 connection to a computer terminal (rear view)
Figure III-27
Tech 2 displaying the Tech 2 start-up screen
2005 Tech 2 User’s Guide III - 10
SECTION IV POWER SUPPLIES
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Power Supplies
Power up the Tech 2 using either:
• The power jack connector at the bottom of the Tech 2 unit (Figure IV-1), or
• The DLC cable power jack connector behind the area where various DLC adapters are connected
(Figure IV-1).
For non-vehicle communications, connect power source to either location.
For vehicle communications, connect the power source to the DLC cable power jack connector only.
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 (Figure IV-1, see text on page IV-2)
• Battery power cable (Figure IV-1, see text on page IV-2)
• NAO or Universal power supply (Figure IV-1 and Figure IV-2, see text on page IV-3)
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.
Figure IV-1
Tech 2 power connections (without direct power connection from the DLC)
2005 Tech 2 User’s Guide IV - 1
SECTION IV POWER SUPPLIES
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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.
Battery Power Cable
This cable has red and black battery clamps attached to one end and a power jack attached to the other
(Figure IV-1). 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.
Important: This cable contains two 3-amp fuses. If you need to replace them, use identical 3-amp fuses.
For information on fuse replacement, see Section VI - Troubleshooting.
2005 Tech 2 User’s Guide IV - 2
SECTION IV POWER SUPPLIES
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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
(Figure IV-2). A specific power cord is provided to permit connection to your area’s power cord receptacle.
Figure IV-2
Tech 2 power supplies (NAO and Universal)
CAUTION
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 power cord plugs are available for the Tech 2, depending your geographic location
(Figure IV-3).
Figure IV-3
Table showing various types of power cord plugs for the Tech 2
2005 Tech 2 User’s Guide IV - 3
SECTION V ADAPTERS
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Adapters
A number of adapters are available for the Tech 2 which allow connection to many different vehicles
(Figure V-1 and Figure V-2). Specific adapters are included in the Tech 2 base kit depending upon Tech 2
configuration—NAO, International, Saab, Opel, Vauxhall, etc. Adapters not included in the base kit may be
purchased separately from your tool distributor.
DLC Cable
The DLC cable (P/N 3000095) has a 26-pin connector with thumb screws at one end that connects to the
Tech 2’s VCI cable connector. At the other end is a 19-pin connector that connects to a variety of adapters
(Figure V-1 and Figure V-2).
Figure V-1
DLC cable adapter connections
Figure V-2
Table showing various adapters and their part numbers
RS-232 Cable
The RS-232 cable (P/N 3000110) has an 8-pin RJ45 plug connector at each end (Figure V-3). This cable
attaches to the Tech 2 RS-232 port and is used to communicate with the Techline terminal.
Figure V-3
RS-232 cable connections
2005 Tech 2 User’s Guide V - 1
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