Vetronix mts 3100 mastertech User manual

MTS 3100 Mastertech®
Operator’s Manual

This entire document and all information contained herein are proprietary, confidential, and exclusive trade
secret property of Vetronix Corporation, and shall not be reproduced, duplicated, or copied in whole or in
part, or made available to any person, firm, or corporation without the prior written permission of Vetronix
Corporation.
Vetronix Corporation
Copyright © 2007
Manual P/N 08002923 Rev. B
Tech 1, Tech 1A, and Mastertech®are registered trademarks of Vetronix Corporation
Printed in USA 05/07

FCC Compliance
This equipment has been tested and found to comply with the limits for a Class B 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 residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the following measures:
• Re-orient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Foreword
The Mastertech Multi-Function Tester and associated Program Card(s) are designed for use by trained
service personnel to diagnose and repair automotive electronic systems. 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.
To familiarize yourself with the Mastertech and Program Card capabilities and how to use them, please read
through the operator's manuals before putting the Mastertech and program card(s) to work. The tools are
designed to reduce time-consuming reference to manuals as much as possible. Once familiar with the tools
and their operation, you will be able to spend more time diagnosing and less time reading.
The Mastertech Multi-Function Tester and Program Card(s) provide the following capabilities:
• Data scan functions
• Bi-directional serial data commands
• Meter measurement functions
• Oscilloscope
• Operate as the center of an automotive diagnostic system
• Shop management functions
• Math functions and unit conversions
• Timer functions
• Future expandability

Mastertech 3100 Operator’s Manual TOC-1
Table of Contents
1. INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
USING THE MASTERTECH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Screen Displays in this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Location of Vehicle ECUs and Test Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Tester Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
WARNINGS, CAUTIONS, NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Operating Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Data Memory Retention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
WARRANTY AND REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Repair Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Vetronix Service Centers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Taking the Product Back and Recycling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2. DIAGNOSTIC CAPABILITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
MASTERTECH KIT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
The Mastertech . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
3. MASTERTECH KIT COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . 3-1
MASTERTECH FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
PROGRAM CARDS AND CARTRIDGES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Program Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Tech 1 Cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
I/O Cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
KEYPAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
MASTERTECH KEY FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
DATA LINK CONNECTOR AND CABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
VEHICLE ADAPTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
POWER SOURCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
BATTERY BACKED OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
BATTERY BACKED MEMORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
BEEPER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
LEDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
INSTRUMENTATION PORT AND DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
DIAGNOSTIC TEST LEADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
RS232 PORT AND RS232 PORT DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Remote Host Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

TOC-2 Mastertech 3100 Operator’s Manual
MASTERTECH CHARACTERISTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13
4. ACTIVATING THE BATTERY BACKED MEMORY . . . . . . . . . . . . 4-1
5. GETTING STARTED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
INSTALLING A PROGRAM CARD OR CARTRIDGE . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Program Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Tech 1 or I/O Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
CONNECTING THE TESTER TO THE VEHICLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
POWERING THE TESTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Vehicle Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
AC 12-Volt Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
TURNING THE TESTER ON AND OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
POWER-UP DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
HELP SCREENS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
6. USING THE PORT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . 6-1
RS232 PORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
INSTRUMENTATION PORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
DIAGNOSTIC TEST LEADS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
7. FINISHING UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
CLEANING AND STORING YOUR TESTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
8. BATTERY CHARGING AND REPLACEMENT . . . . . . . . . . . . . . . . 8-1
NICAD BATTERY PACK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
Charging the Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Replacing the NiCad Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
LITHIUM BATTERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Replacing the Lithium Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
A. UNDERSTANDING RS232 COMMUNICATIONS . . . . . . . . . . . . . A-1
RS232 Interface Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
B. IF YOU ARE HAVING A PROBLEM . . . . . . . . . . . . . . . . . . . . . . . . B-1
Blank Screen When Tester Is Turned On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Error message is displayed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2
Printer cannot print by pressing Sand PSkeys . . . . . . . . . . . . . . . . . . . B-2
Mastertech Does Not Pass All Self Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3

Mastertech 3100 Operator’s Manual TOC-3
Mastertech Fails to Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
C. GLOSSARY AND ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . C-1
INDEX .............................................................................................. Index-1

TOC-4 Mastertech 3100 Operator’s Manual

Mastertech 3100 Operator’s Manual Page 1-1
1. INTRODUCTION
USING THE MASTERTECH
The Mastertech Operator's Manual lists the diagnostic capabilities of the tester and describes the hardware
components contained within the Mastertech kit.
The Mastertech Operator's Manual also describes how to connect the hand-held tester to the vehicle and how
to operate the Mastertech. The Mastertech must be used in conjunction with a diagnostic application
program card or TECH 1 cartridge. TECH 1 cartridges are automotive diagnostic application cartridges that
can be used in the TECH 1, TECH 1A, and Mastertech testers.
The program card and/or TECH 1 cartridge operator's manuals provide directions for connecting the related
components to the Mastertech and the vehicle, and operating instructions for the test modes available in the
program card or cartridge. The program card and cartridge operator's manuals should be used in conjunction
with the Repair Manual for the vehicle being tested.
SCREEN DISPLAYS IN THIS MANUAL
The data shown in the screen displays in the Mastertech Operator's Manual is sample data for illustration
purposes only and may be different from the data displayed when different vehicles are tested.
The sample displays in this manual are full screen displays that are available when using a program card with
the Mastertech.
Tech 1 Displays
If you are using a TECH 1 cartridge in the Mastertech without a program card installed, menus and data
screens are displayed on four lines with 16 characters on each line. Graphic displays such as Bar Charts, Line
Graphs, and Oscilloscope displays are not available.

Introduction Warnings, Cautions, Notes
Page 1-2 Mastertech 3100 Operator’s Manual
Enhanced Displays
Most TECH 1 cartridges can be used in conjunction with a program card which enables the tester to display
data in full-screen Enhanced Mode. Graphic displays such as Bar Charts, Line Graphs, and Oscilloscope
displays are available when operating in Enhanced Mode. The Enhanced Mode is explained in the program
card operator's manual.
LOCATION OF VEHICLE ECUs AND TEST CONNECTORS
For the location of vehicle Electronic Control Units (ECUs) and Data Link Connectors (DLCs), refer to the
Repair Manual and the electrical wiring diagram for the vehicle being tested.
TESTER KEYPAD
In the Mastertech and Program Card Operator's Manuals, the number, symbol, word, or abbreviation on the
Mastertech keys are indicated in boldface type and enclosed in a box. For example, 8,A, P, E
and X. When two keys are shown together, hold down the first key while pressing the second key. For
example, PXmeans to press and hold the Pkey, then press the Xkey.
WARNINGS, CAUTIONS, NOTES
In the Mastertech and program card manuals:
• WARNINGS indicate there is a possibility of injury to you or other people.
• CAUTIONS indicate the possibility of damage to the component being repaired.
• NOTES providing additional information are separated from the text but do not appear in bold.
Refer to the Repair Manual for the vehicle being tested for further Warnings, Cautions, and Notes.
OPERATING PRECAUTIONS
WARNING! When performing any checks with the engine running in an enclosed space
such as a garage, be sure there is proper ventilation. Never inhale exhaust
gases; they contain carbon monoxide, a colorless, odorless, extremely
dangerous gas which can cause unconsciousness or death.
CAUTION
CAUTION! Do not use the Diagnostic Test Leads to check voltages higher than 20
volts. (Don't plug the Diagnostic Test Leads into a standard AC wall
outlet). Also, the Diagnostic Test Leads should be kept away from high
tension secondary ignition wires when the engine is cranking or running.

Warranty and Repair Introduction
Mastertech 3100 Operator’s Manual Page 1-3
DATA MEMORY RETENTION
Data that has been captured by the tester can be replayed, printed on a printer, or transferred to a computer
for further analysis. The data will be retained within the Mastertech memory as long as the Lithium battery
provides the proper power or until the data is erased.
WARRANTY AND REPAIR
WARRANTY
The Mastertech is warranted by Vetronix Corporation to the original consumer to be free of defects in
material and workmanship for two years. Cables, adapters, cartridges, and program cards are warranted for
a period of one year.
The warranty period is from the date of shipment to the original consumer. If a product is found to be
defective during this period, the product can be returned to an authorized Vetronix Service Center and
Vetronix Corporation will repair or replace the unit free of charge. This warranty does not cover any part
that has been abused, altered, used for a purpose other than that which it was intended, or used in a manner
inconsistent with instructions regarding its use including but not limited to the following:
• Damage due to improper product operation or product modification.
• Damage due to use of non-Vetronix supplied cables and accessory items, or unauthorized peripheral
equipment.
• Damage due to dropping or other severe impact to the product.
• Damage due to exposure to excessive temperatures.
• Damage or loss that may occur during shipping
This warranty also excludes all incidental or consequential damages.
NOTE Do not remove or install a program card or cartridge while power is
applied to the Mastertech. If you wish to change or add a program card or
cartridge, first turn the tester off by pressing PX.
NOTE If the Mastertech is turned on without a program card or cartridge
installed, or with a different program card or cartridge installed, the data
stored in the tester memory, such as set-up information and Snapshot data,
will be lost.

Introduction Warranty and Repair
Page 1-4 Mastertech 3100 Operator’s Manual
REPAIR SERVICE
If you experience a problem with the Mastertech or program card, read the Operator's Manual carefully to
make sure that you are operating the unit properly. To avoid the inconvenience of returning a non-defective
unit for repair, it is advisable to exercise the Self Test procedures outlined in the Mastertech Operator's
Manual to find out if there is a problem with the unit.
If it is determined that a problem exists, call a Vetronix Service Center (or authorized Vetronix Service
Agent). A service technician will attempt to identify the nature of the problem and recommend a course of
action. If the unit requires repair, package the Mastertech and program card, along with all cables and
adapters, and send it freight prepaid to the repair service center listed for the country in which you live.
Please enclose a note which provides the date of purchase, a brief explanation of the problem, and your
return address. (No CODs, please.)
When the unit is received at the Vetronix Service Center it will be diagnosed, repaired or replaced, and
returned. If the unit is determined to be in warranty, it will be repaired or replaced with no charge and
returned freight prepaid.
If the unit is determined to be out of warranty, it will be repaired for a nominal service charge plus return
freight.
VETRONIX SERVICE CENTERS
USA
VETRONIX CORPORATION
2030 Alameda Padre Serra
Santa Barbara, CA 93103 USA
TEL: [phone]
FAX: [phone]
Canada
VETRONIX REPAIR SERVICE
c/o Custone Electromotive Inc.
1150 Champlain Court
Whitby, Ontario L1N 6A8
905-668-2664
TAKING THE PRODUCT BACK AND RECYCLING
Applicable to product that is sold into the European Union, the European Union has passed a directive called
Waste Electrical and Electronic Equipment, or WEEE for short, to ensure that systems are setup throughout
the EU for the collection, treating and recycling of electronic waste.
This ensures that the devices are recycled in a resource-saving way representing no danger to health or the
environment.

Warranty and Repair Introduction
Mastertech 3100 Operator’s Manual Page 1-5
The WEEE symbol (see Figure 1-1) on the product or its packaging shows that the product must not be
disposed of as residual garbage. The user is obliged to collect the old devices separately and return them to
the WEEE take-back system for recycling.
The WEEE directive concerns all Bosch devices but not external cables or batteries. For more information
on the Bosch GmbH Recycling Program, contact one of the Vetronix/Bosch Group sales and service
locations listed below.
Bulgaria
I.C Iletisim Teknolojileri Elek. San. Ve Tic. Ltd. Sti.
Bayar Cad. Bayar Is Merkezi NO: 109A D:8
81090 Kozyatagi, Istanbul
Turkey
Phone: [phone]
Fax: [phone]
Email: [e-mail]
WWW: www.icteknoloji.com
Ireland
Advanced Diagnostics
Unit 5
Alliance Close
Attleborough Fields Industrial Estate
Nuneaton
Warwickshire, CV11 6SD
Phone: [phone]
Fax: [phone]
Email: [e-mail]
WWW: www.advanceddiagnostics.co.uk
Romania
I.C Iletisim Teknolojileri Elek. San. Ve Tic. Ltd. Sti.
Bayar Cad. Bayar Is Merkezi NO: 109A D:8
81090 Kozyatagi, Istanbul
Turkey
Phone: [phone]
Fax: [phone]
Email: [email protected]om
WWW: www.icteknoloji.com
Slovenia
GIIR d.o.o
Gabrovacki out II deo 32a
18000 Nis
Serbia & Montenegro
(Yugoslavia)
Cell: #381 65 4000068
Office: #381 18 534-272
Fax: #[phone]
Email: [e-mail]
FIGURE 1-1. WEEE Logo

Introduction Warranty and Repair
Page 1-6 Mastertech 3100 Operator’s Manual
United Kingdom
Advanced Diagnostics
Unit 5
Alliance Close
Attleborough Fields Industrial Estate
Nuneaton
Warwickshire, CV11 6SD
Phone: [phone]
Fax: [phone]
Email: [e-mail]
WWW: www.advanceddiagnostics.co.uk

Mastertech 3100 Operator’s Manual Page 2-1
2. DIAGNOSTIC CAPABILITIES
MASTERTECH KIT OVERVIEW
The Mastertech kit consists of a hand-held tester and attachments, which allows the use of one tool for many
automotive diagnostic applications. The Mastertech kit is designed so that future automotive diagnostic
applications can easily be incorporated into the existing tester.
The diagnostic capabilities of the tester components are described in this chapter. A description of the
hardware related to each component is included in the following sections.
THE MASTERTECH
The Mastertech is used by professional technicians as an aid in diagnosing and repairing automotive
electrical and electronic systems. It is designed to test Engine Control Modules (ECMs) and Electronic
Control Units (ECUs) for brake, body, and chassis systems, and their associated sensors, actuators, and cable
harnesses.
Capable of operating either as a stand-alone tool or as the control unit for the toolset, the Mastertech employs
plug-in program cards and cartridges, and can be adapted to operate with virtually all automotive electronic
systems from the simplest to the most complex.
The tester supports diagnosis of electronic systems on most US vehicles, as well as many European and
Asian manufactured vehicles.
The Diagnostic Test Leads supplied with the Mastertech kit provides additional troubleshooting capabilities.
The Diagnostic Test Leads are used as inputs to a smart digital volt meter (DVM) function to monitor input/
output signals between the ECM/ECU and sensors and actuators, and for inputs to the oscilloscope function.
When the appropriate program card and/or cartridge is installed and the tester is connected to a vehicle's
Data Link Connector (DLC), the following diagnostic functions are available:
• Display ECM/ECU Data List parameters
• Display stored trouble codes and descriptions

Diagnostic Capabilities
Page 2-2 Mastertech 3100 Operator’s Manual
• Display input sensor read data
• Control actuator output data
• Display ON/OFF status of switch signals
• Test feed-back systems such as the O2 sensor
• Command clearing of some ECM/ECU trouble codes
• Troubleshoot using the Diagnostic Test Leads
• Troubleshoot intermittent problems with Snapshot mode
• Print test results to provide a permanent record

Mastertech 3100 Operator’s Manual Page 3-1
3. MASTERTECH KIT
COMPONENTS
Mastertech kits are available with a variety of components. The items listed below are either included in the
Mastertech kit, or are available as accessories through Vetronix Corp.
• Mastertech Multi-Function Tester
• Multi-Function Tester Program Card
• Diagnostic Test Lead Set
• Diagnostic Test Lead Adapter
• Data Link Connector (DLC) Cable
• DC Power Cable
• DLC Self Test Adapter
• RS232/IP Self Test Adapter
• GM 12/14 Pin DLC Adapter
• Ford 7/14 Pin Adapter
• Chrysler 6/14 SCI DLC Adapter
• GM 5-Pin Adapter
•GMPin-EAdapter
• CAN VIM (Vehicle Interface Module) and OBD II Adapter Cable
• AC Power Supply
• Mastertech Boot
• Mastertech Operator's Manual
• Program Card Operator's Manual
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Mastertech Kit Components
Page 3-2 Mastertech 3100 Operator’s Manual
MASTERTECH FEATURES
The Mastertech Multi-Function Tester can be hand-held or placed on a flat surface. An adjustable hand strap
on the back provides added security while holding the tester.
A built-in support stand allows the tester to be tilted to the most convenient viewing angle when it is not
handheld.
FIGURE 3-1. Tester Features
DISPLAY
LEDs
KEYBOARD
RS232 PORT
DLC
INSTRUMENTATION PORT
NiCAD BATTERY PACK
POWER CONNECTOR
SCREEN CONTRAST
PROGRAM CARD
CARTRIDGE
SLOT
CONTROL

Mastertech Kit Components
Mastertech 3100 Operator’s Manual Page 3-3
PROGRAM CARDS AND CARTRIDGES
The Mastertech uses plug-in program cards and cartridges which contain the software programs for testing
specific vehicles and systems. The program cards and cartridges are upgraded periodically to include new
vehicles, model years, and systems. Specific operating instructions are provided for diagnostic test functions
contained in the program cards or cartridges.
Program cards, TECH 1 cartridges, and Input/Output (I/O) cartridges can be used with the Mastertech
Multi-Function Tester.
PROGRAM CARDS
Multiple program cards may be required to provide the complete diagnostic testing capabilities of the
toolset. Program cards are installed in the slot on the upper right side of the tester (below the display). The
program card slot is keyed so the card can only be installed in the proper orientation.
TECH 1 CARTRIDGES
Most cartridges designed for use with a TECH 1 or TECH 1A tester are fully compatible with the
Mastertech. TECH 1 cartridges plug into the cartridge slot and allow you to test most US vehicles as well as
many European and Asian manufactured vehicles.
I/O CARTRIDGES
Input/Output (I/O) cartridges are used to expand the I/O capability of the tester. I/O cartridges plug into the
cartridge slot at the top rear of the tester.
FIGURE 3-2. Program Card and Tech 1 Cartridge

Mastertech Kit Components
Page 3-4 Mastertech 3100 Operator’s Manual
KEYPAD
The 27-key keypad allows you to make menu selections or input information. Through the keypad you can
select the data you want to see and choose the display format. While performing some tests you can control
the operation of certain functions through the keypad.
The Aand Pkeys are used to modify other keys. For example, if the instructions say press Px,
press the Pkey first and hold it down while pressing the xkey.
Some keys, such as the numeric (0- 9) and yand nkeys, have different functions depending on
which test mode is in use. The hkey displays a list of the active keys and their functions in the current
test mode.
A chart of the keys and their functions is illustrated in Figure 3-3.
HELP
YES NO ENTER
123
456
RCV
789
SEND
0#
EXIT
F1 F2 F3
F4 F5 F6
F7 F8 F9
F0 ON
OFF
FIGURE 3-3. Mastertech Keypad