Snap-On APOLLO D8 User manual

User Manual
ZEESCGB333A Rev. A
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and Data
OBD-II/EOBD Tools
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Contents
Quick Links
ShopStream Connect™
Previous Vehicles & Data
General Information
Maintenance
OBD-II/EOBD
Quick Reference Information
Intelligent Diagnostics
Table of Contents (TOC)
Click a Topic
Scanner
Using Page Controls
Tools
Wi-Fi Connection
Snap-on
®
Cloud
Basic Operation & Navigation
Vehicle Code Scan
Customer Support / Training

Table of Contents
iii
Safety Information ....................................................................................... v
Using This Manual ..................................................................................... vii
Section 1: Quick Reference ........................................................................1
Section 2: General Information................................................................... 2
Basic Features............................................................................................... 2
Powering the Diagnostic Tool ........................................................................ 3
Vehicle Power .........................................................................................3
Internal Battery Pack ............................................................................... 3
AC Power Supply .................................................................................... 3
Technical Specifications ................................................................................ 4
Section 3: Basic Operation and Navigation .............................................. 5
Turning On/Off and Emergency Shutdown .................................................... 5
Turning On .............................................................................................. 5
Turning Off .............................................................................................. 5
Emergency Shutdown ............................................................................. 5
Control Buttons .............................................................................................. 6
Basic Navigation ............................................................................................ 6
Home Screen Layout............................................................................... 6
Home Screen Icons................................................................................. 7
Title Bar ................................................................................................... 7
Common Toolbar Control Icons .............................................................. 8
Scroll Bar.................................................................................................8
Screen Messages ..........................................................................................9
Snap-on Messages ................................................................................. 9
General System Messages ..................................................................... 9
Vehicle Communication Messages ......................................................... 9
Section 4: Data Cable / Connections ....................................................... 10
Data Cable Connection (OBD-II/EOBD Vehicles)........................................10
Optional OBD-II/EOBD Data Cable.......................................................11
Optional Ethernet Data Cable ...............................................................11
Data Cable Connection OBD-I Vehicles................................................12
Section 5: Scanner..................................................................................... 13
Basic Operation ........................................................................................... 13
Scanner Overview .................................................................................13
Scanner - Starting / Stopping ................................................................ 14
Features and Icons...................................................................................... 14
Scanner Features ................................................................................. 14
Scanner Control Icons........................................................................... 15
Basic Scanner Operation (Quick Start) ................................................. 15
Vehicle Identification ............................................................................. 16
System Main Menu Options .................................................................. 19
Codes - View / Save .................................................................................... 19
Codes Menu.......................................................................................... 19
Code Scan (with Vehicle System Report) ............................................. 20
Viewing and Saving Data (PIDs) ................................................................. 21
Data Menu ............................................................................................ 21
Data Views (List / Graph) ...................................................................... 26
Locking PIDs (to always display at top) ............................................... 28
About the Data Buffer ........................................................................... 29
About Cursors ....................................................................................... 30
Pausing and Reviewing Active Data ..................................................... 30
Saving Data Files .................................................................................. 31
Using Zoom........................................................................................... 33
Using Triggers....................................................................................... 34
Functional Tests .......................................................................................... 37
Troubleshooter ............................................................................................ 39
Section 6: Vehicle Code Scan ................................................................. 40
Using Code Scan......................................................................................... 41
Total Number of Systems (modules) Analyzed..................................... 42
List of All the Systems Analyzed with DTCs Totals............................... 43
Global OBDII DTCs............................................................................... 43
Readiness Monitor Test Status ............................................................. 44
Vehicle System Report ................................................................................ 44
Printing the Vehicle System Report ...................................................... 44
Section 7: Intelligent Diagnostics ............................................................ 45
Main Topic Links.......................................................................................... 45
Accessing Intelligent Diagnostics ................................................................ 46
Informative Messages........................................................................... 46
Using Intelligent Diagnostics (Code Results) ........................................ 47
Main Menu Navigation ................................................................................ 47
Table of Contents

Table of Contents
iv
Code Results Dropdown Menu.................................................................... 48
Top Repairs Graph ......................................................................................49
Smart Data................................................................................................... 49
About Smart Data PIDs ......................................................................... 50
Functional Tests and Reset
Procedures ........................................................................................ 51
Real Fixes ....................................................................................................52
Troubleshooter............................................................................................. 53
Section 8: OBD-II/EOBD ............................................................................55
Basic Operations ......................................................................................... 55
Screen Layout and Toolbar Controls.....................................................55
Connecting the Data Cable ...................................................................55
Saving and Reviewing Data Files.......................................................... 55
OBD-II/EOBD Menu.....................................................................................56
OBD Health Check ................................................................................56
OBD Direct ............................................................................................ 58
Section 9: Previous Vehicles and Data.................................................... 62
Previous Vehicles and Data Menu............................................................... 62
Vehicle History ...................................................................................... 62
View Saved Data...................................................................................63
Viewing Codes and Code Scan Results................................................63
Delete Saved Data ................................................................................ 65
Section 10: Tools ....................................................................................... 66
Tools Menu .................................................................................................. 66
Connect-to-PC (File Transfer) ...............................................................67
Get Connected ......................................................................................67
Configure Shortcut Button ..................................................................... 67
System Information ...............................................................................67
Settings .................................................................................................68
Section 11: Wi-Fi Connection / Troubleshooting.................................... 74
Checking if Wi-Fi is On/Off...........................................................................74
Checking if Wi-Fi is Connected....................................................................74
Wi-Fi Icons (Setup) ......................................................................................75
Turning Wi-Fi On and Connecting to a Network .......................................... 75
Add Network Advanced (Connecting to a hidden network) .........................76
Wi-Fi Testing................................................................................................ 76
Wi-Fi Troubleshooting and Status Messages ..............................................77
Informative Messages........................................................................... 79
Section 12: Snap-on Cloud....................................................................... 80
Key Features ............................................................................................... 80
Important Notes ........................................................................................... 80
Registration - Getting Started ...................................................................... 80
Snap-on Cloud - New User Registration ............................................... 80
Snap-on Cloud Setup Information Screen ............................................ 81
Using the Snap-on Cloud ............................................................................ 82
Quick Reference (print / download / share) .......................................... 82
Logging in to the Snap-on Cloud (registered user) ............................... 82
Navigating the Snap-on Cloud (Toolbars)............................................. 83
My Files................................................................................................. 83
Search................................................................................................... 86
Favorites ............................................................................................... 86
Profile.................................................................................................... 87
Section 13: ShopStream Connect ™ ....................................................... 90
Using SSC (Connecting to your PC) ........................................................... 90
SSC Main Screen ........................................................................................ 91
Scanner DataViewer.................................................................................... 92
Image Viewer............................................................................................... 92
Printing the (Code Scan) Vehicle System Report........................................ 93
Customizing the (Code Scan) Vehicle System Report ................................ 94
Software Upgrades and Updates ................................................................ 95
End User License Agreement ............................................................... 96
Section 14: Maintenance........................................................................... 97
Cleaning and Inspecting the Diagnostic Tool .............................................. 97
Cleaning the Touch Screen................................................................... 97
Battery Pack Service ................................................................................... 97
Safety ................................................................................................... 97
Ordering a New Battery Pack................................................................ 98
Removing / Installing the Battery Pack ................................................. 98
Disposing of the Battery Pack............................................................... 99
Customer Support / Training.................................................................. 100
Legal Information .................................................................................... 103

v
Safety Information
READ ALL INSTRUCTIONS
For your own safety, the safety of others, and to prevent damage to the product and
vehicles upon which it is used, it is important that all instructions and safety
messages in this manual and the accompanying Important Safety Instructions
manual be read and understood by all persons operating, or coming into contact
with the product, before operating. We suggest you store a copy of each manual
near the product in sight of the operator.
For your safety, read all instructions. Use your diagnostic tools only as described in
the tool user’s manual. Use only manufacturer recommended parts and
accessories with your diagnostic tools.
This product is intended for use by properly trained and skilled professional
automotive technicians. The safety messages presented throughout this manual
and the accompanying Important Safety Instructions manual are reminders to the
operator to exercise extreme care when using this product.
There are many variations in procedures, techniques, tools, and parts for servicing
vehicles, as well as in the skill of the individual doing the work. Because of the vast
number of test applications and variations in the products that can be tested with
this instrument, we cannot possibly anticipate or provide advice or safety messages
to cover every situation. It is the responsibility of the automotive technician to be
knowledgeable of the system being tested. It is essential to use proper service
methods and test procedures. It is important to perform tests in an appropriate and
acceptable manner that does not endanger your safety, the safety of others in the
work area, the equipment being used, or the vehicle being tested.
It is assumed that the operator has a thorough understanding of vehicle systems
before using this product. Understanding of these system principles and operating
theories is necessary for competent, safe and accurate use of this instrument.
Before using the equipment, always refer to and follow the safety messages and
applicable test procedures provided by the manufacturer of the vehicle or
equipment being tested. Use the product only as described in it’s user manual. Use
only manufacturer recommended parts and accessories with your product.
Read, understand and follow all safety messages and instructions in this manual,
the accompanying Important Safety Instructions manual, and on the test
equipment.
Environmental Conditions:
•This product is intended for indoor use only
•This product is rated for Pollution Degree 2 (normal conditions)
Safety Signal Words
All safety messages contain a safety signal word that indicates the level of the
hazard. An icon, when present, gives a graphical description of the hazard. Safety
Signal words are:
Indicates an imminently hazardous situation which, if not avoided, will result in
death or serious injury to the operator or to bystanders.
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury to the operator or to bystanders.
Indicates a potentially hazardous situation which, if not avoided, may result in
moderate or minor injury to the operator or to bystanders.

Safety Information Safety Message Conventions
vi
Safety Message Conventions
Safety messages are provided to help prevent personal injury and equipment
damage. Safety messages communicate the hazard, hazard avoidance and
possible consequences using three different type styles:
•Normal type states the hazard.
•Bold type states how to avoid the hazard.
•Italic type states the possible consequences of not avoiding the hazard.
An icon, when present, gives a graphical description of the potential hazard.
Safety Message Example
Risk of electric shock.
• Prior to recycling the battery pack, protect exposed terminals with heavy
insulating tape to prevent shorting.
• Disconnect all test leads and turn diagnostic tools off before removing the
battery pack.
• Do not attempt to disassemble the battery or remove any component
projecting from or protecting the battery terminals.
• Do not expose the diagnostic tool or battery pack to rain, snow, or wet
conditions.
• Do not short circuit the battery terminals.
Electric shock can cause injury.
Important Safety Instructions
For a complete list of safety messages, refer to the accompanying Important Safety
Instructions manual.
SAVE THESE INSTRUCTIONS

vii
Using This Manual
Hyperlinks
Selectable hyperlinks are provided throughout this manual to quickly take you to
related topics, procedures, and websites. Hyperlinks are identified by Blue colored
text.
Text Hyperlink Example: http://diagnostics.snapon.com
Page Navigation Controls
The following navigation controls are provided on the top of each page of the user
manual. They can be used in addition to the viewer controls in the toolbar.
Content
This manual contains basic operating instructions and is structured in a manner to
help you become familiar with your diagnostic tool features and perform basic
operations.
The illustrations in this manual are intended as reference only and may not depict
actual screen results, information, functions or standard equipment. Contact your
sales representative for availability of other functions and optional equipment.
Conventions
The following conventions are used.
Terminology
The terms “Scanner” and “Scanner function” are used to describe the Scanner
Function(s) of the diagnostic tool.
Examples:
•Select Scanner from the Home screen.
•From the Scanner main menu select Continue.
•The Scanner function provides many diagnostic tests.
The term “select” describes tapping/touching an icon on the touch screen, or
highlighting an icon or menu choice and then selecting the confirmation menu
choice such as Continue, Accept, OK, Yes, or other similar choice.
Abbreviated example for the following procedure: “Select Brightness”
1. Navigate to and highlight the Brightness selection.
2. Select OK, or similar, button.
Icon Description
Quick Links
Menu Opens the Quick Links menu within the Table of Contents (TOC) section.
From Quick Links you can link to most topics in this manual.
Jump Back
Click to move back one page.
Jump Forward
Click to move forward one page.

Using This Manual Symbols
viii
Symbols
Different types of arrows are used. The “greater than” arrow (>) indicates an
abbreviated set of selection (navigation) instructions.
Abbreviated example for the following procedure: “Select Tools > Connect-to-PC”
1. Select Tools from the home screen.
2. Highlight Connect-to-PC on the Tools menu.
3. Select Connect-to-PC.
The solid arrows (e, c, d, b) are navigational instructions for the four directions of
the directional buttons.
Example: Press the down d arrow.
Bold Text
Bold emphasis is used in procedures to highlight selectable items such as control
buttons, icons and menu options.
Example: Press the OK button
Notes and Important Messages
The following messages are used.
Notes
A NOTE provides helpful information such as additional explanations, tips, and
comments.
Example:
NOTE
For additional information refer to...
Important
IMPORTANT indicates a situation which, if not avoided, may result in damage to the
test equipment or vehicle.
Example:
IMPORTANT
Do not disconnect the data cable while the diagnostic tool is
communicating with the ECM.
IMPORTANT
Read all applicable Safety Information before using this diagnostic tool!
Procedures
An arrow icon in the left-margin area indicates a procedure.
Example:
zTo change screen views:
1. Select the Graph icon.
The dropdown menu displays.
2. Select an option from the menu.
The screen layout changes to the format selected.

1
Section 1 Quick Reference
Finding the Diagnostic Tool Serial Number
and Software Version
The diagnostic tool serial number is located on the back of the diagnostic tool
housing. The serial number can also be viewed onscreen from the System
Information screen (Tools > System Information) see System Information on
page 67,
The diagnostic tool software version can be viewed onscreen from the System
Information screen (Tools > System Information) see System Information on
page 67.
Connecting to Wi-Fi
Note: These instructions are intended as quick reference only, for additional
information see Wi-Fi Connection / Troubleshooting on page 74.
1. From the Home screen, select Tools > Settings > Configure Wi-Fi.
2. Select the Wi-Fi icon to turn Wi-Fi on.
3. The Wi-Fi icon will change to , indicating Wi-Fi is on.
4. Select your wireless network from the list (typicallistshown below), then select
Connect.
Wi-Fi Applications
The following integrated Repair Information Application provides up-to-date service/
repair information directly to your diagnostic tool, via wireless network connection to
our Snap-on Web Services Network:
•Intelligent Diagnostics
To use this application you must have authorized access. If your access to this
application has expired, contact your sales representative.
NOTE
Performance varies depending on your wireless network equipment and ISP.
Snap-on Cloud
This diagnostic tool includes a built-in Wi-Fi feature that automatically transfers code
scan reports to the Snap-on Cloud.
The Snap-on Cloud is a mobile-friendly cloud-based application designed specifically
for technicians to print, store, organize and share information. See Snap-onCloudon
page 80 for additional information.
Printing Data and Screenshots
Use ShopStream Connect to print data files and screenshots from the diagnostic tool.
See ShopStream Connect ™ on page 90.
My Wi-Fi (2)
My Wi-Fi (3)
My Wi-Fi (1)

2
Section 2 General Information
The APOLLO D8™ is a diagnostic scan tool with exclusive Snap-on® Intelligent
Diagnostics feature.
This section describes basic feature locations, how the diagnostic tool is powered
and basic specifications.
Main Topic Links
•Basic Features page 2
•Powering the Diagnostic Tool page 3
–Vehicle Power page 3
–Internal Battery Pack page 3
–AC Power Supply page 3
•Technical Specifications page 4
2.1 Basic Features
1— Touch Screen
2— Control Panel
Figure 2-1 Front view
Connectors and jacks for data communication cables and the AC power supply are
located on the top of the diagnostic tool.
Figure 2-2 Top view
1— Battery Status Indicator LED
2— Power Supply Jack - AC power supply connection
3— Mini USB Jack - USB cable connection used to transfer saved data files to a
personal computer
4— Micro secure digital (uSD) Card - contains operating system programming.
IMPORTANT The uSD card must be installed for the diagnostic tool to
operate. Do not remove the uSD card while the diagnostic tool is powered
on.
5— Data Cable Connector - Data cable connection used to connect the diagnostic
tool to a vehicle data link connector (DLC)
1— Built in-Stand
Figure 2-3 Back view
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General Information Powering the Diagnostic Tool
3
2.2 Powering the Diagnostic Tool
Your diagnostic tool can receive power from any of the following sources:
•Vehicle Power
•Internal Battery Pack
•AC Power Supply
2.2.1 Vehicle Power
The diagnostic tool is designed to be powered from the vehicle. All OBD-II/EOBD
vehicles have vehicle battery power (B+) available on the data link connector
(DLC). The diagnostic tool is powered through the Data Cable when connected to
the vehicle DLC.
A green LED indicator on the DLC end of the data cable, illuminates when power is
being supplied to the cable. If the LED fails to illuminate, check that the data cable
is properly connected and then check the DLC power circuit. See Data Cable /
Connections on page 10 for additional data cable information.
An optional power cable is required when testing non-OBD-II/EOBD or models that
do not have vehicle battery power (B+) available on the DLC. Contact your sales
representative for availability.
IMPORTANT
Never connect the optional power cable to the power supply input jack
on the diagnostic tool when the diagnostic tool is communicating with a
vehicle.
2.2.2 Internal Battery Pack
The diagnostic tool can be powered from the internal rechargeable battery pack. A
fully charged battery pack provides sufficient power for about 3 hours of continuous
operation. For battery pack removal and installation instructions see, Removing /
Installing the Battery Pack on page 98.
Battery Pack Charging
Battery charging occurs whenever the data cable is connected to a vehicle DLC.
Battery charging also occurs when the AC power supply is connected to a live AC
power source, and connected to the diagnostic tool. Use the supplied AC power
supply to charge the battery pack.
Insert the end of the AC power supply cable into the diagnostic too power supply
jack, then connect the AC power supply to an approved AC power source.
IMPORTANT
Only use the supplied AC power supply. Never connectthe power supply
to the diagnostic tool when the tool is communicating with a vehicle.
The Battery Status Indicator LED (located next to the power supply jack) indicates
battery status.
2.2.3 AC Power Supply
The diagnostic tool can be powered from a standard AC outlet using the AC power
supply. The AC power supply converts alternating current (AC) to direct current
(DC) to power the diagnostic tool. The connector on the end of the output cable of
the AC power supply connects to the AC power supply jack on top of the diagnostic
tool. Use only the AC power supply provided.
IMPORTANT
Never connect the AC power supply to the diagnostic tool when the
diagnostic tool is communicating with a vehicle.
Battery Status LED Description
Green - battery is fully charged, or the diagnostic tool is
being powered by the AC power supply.
Red - battery is charging
Amber - indicates a battery issue. This is usually caused
by excessive battery temperature (above 104°F/40°C),
which disables charging. Allow the diagnostic tool to cool
down before continuing operation.

General Information Technical Specifications
4
2.3 Technical Specifications
Item Description / Specification
Touch Screen Resistive Touch Panel
Display 8.0 inch diagonal, Color LCD
800 x 480 resolution SWVGA
Battery
Rechargeable lithium-ion battery pack
Approximately 3 hour run time
Approximately 5 hour charge time
Power Supply Supply Rating; 15VDC, 2A
DC Operating Voltage 10 to 30VDC
Width 11.06 in. (281.0 mm)
Height 6.29 in. (160.0 mm)
Depth 1.58 in. (40.3 mm)
Weight (including battery): 2.65 lb (1.20 kg)
Operating Temperature
Range (ambient)
At 0 to 90% relative humidity (non-condensing)
32 to 113°F (0 to 45°C)
Storage Temperature
(ambient)
At 0 to 70% relative humidity (non-condensing)
–4 to 140°F (–20 to 60°C)
Operating Altitude Maximum 2000 m
Environmental Conditions
This product is intended for indoor use only
This product is rated for Pollution Degree 2 (normal
conditions)

5
Section 3 Basic Operation and Navigation
This section describes basic diagnostic tool operation, navigation, screen layout,
icon functions, and screen messages. Before you operate the diagnostic tool, make
sure the battery pack is fully charged or the diagnostic tool is powered by the AC
power supply.
Main Topic Links
•Turning On/Off and Emergency Shutdown page 5
•Control Buttons page 6
•Basic Navigation page 6
•Home Screen Icons page 7
•Common Toolbar Control Icons page 8
•Screen Messages page 9
3.1 Turning On/Off and Emergency
Shutdown
The following sections describe how to turn the diagnostic tool on and off and how
to perform an emergency shutdown.
3.1.1 Turning On
To manually turn on the diagnostic tool, press and release the Power button
(Figure 3-1).
The diagnostic tool will automatically turn on when:
•a live AC power supply is connected to the diagnostic tool
•the Data Cable is connected to a vehicle (that has 12VDC at the data link
connector (DLC))
3.1.2 Turning Off
IMPORTANT
All vehicle communication must be stopped BEFORE turning off the
diagnostic tool. A warning message displays if you attempt to turn the
diagnostic tool off while communicating with the vehicle. Forcing a shut
down while communicating may lead to ECM problems on some
vehicles. Never disconnect the Data Cable when the diagnostic tool is
communicating with the vehicle ECM.
zTo turn off the diagnostic tool:
1. Press the N/Cancel button or select the Back or Home icon to navigate to the
Home screen.
If applicable, a “stopping communication” message appears briefly before the
Home screen displays.
2. If applicable, disconnect the Data Cable from the vehicle.
3. Press and release the Power button.
A confirmation screen displays.
4. Press the Y/Accept button or select OK from the menu to turn the diagnostic
tool off. To continue operating, press the N/Cancel button or select Cancel
from the menu.
3.1.3 Emergency Shutdown
IMPORTANT
Using the emergency shutdown procedure while communicating with
the vehicle ECM may lead to ECM problems on some vehicles.
During normal operation turn the diagnostic tool off using the Turning Off procedure
above. The emergency shutdown procedure should only be used If the diagnostic
tool does not respond to navigation or control buttons or exhibits erratic operation.
To force an emergency shutdown, press and hold the Power button for five
seconds until the diagnostic tool turns off.

Basic Operation and Navigation Control Buttons
6
3.2 Control Buttons
There are four “push type” control buttons and one “thumb pad rocker type” multi-
directional button located on the right side of the diagnostic tool. All other diagnostic
tool operations are controlled through the touch screen.
Figure 3-1 Front view
3.3 Basic Navigation
3.3.1 Home Screen Layout
The Home screen includes a title bar and main body. The Home screen contains
the primary diagnostic tool function icons.
1— Title Bar
2— Main Body
Figure 3-2 Home screen
Item Button Description
1
N/Cancel -
Push type
button
•To exit a menu or program.
•To close an open list and return to the
previous menu or screen.
•To answer “No” when a yes/no choice is
given.
2
Y/Accept -
Push type
button
•To confirm a selection from a menu or
program.
•To select an item that was highlighted using
the direction arrows.
•To advance to the next screen in a series.
•To answer “Yes” when a yes or no choice is
given.
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Directional -
Thumb pad
rocker type
buttons
Buttons move the cursor or highlight in their
respective direction:
•Up (b)
•Down (d)
•Left (e)
•Right (c)
4
S (Shortcut) -
Push type
button
Programmable function button that can provide a
shortcut for performing a variety of routine tasks.
Refer to Configure Shortcut Button on
page 67 for additional information.
5
Power (On/
Off) - Push
type button
Turns the diagnostic tool on and off. Also, press
and hold for 5 seconds for emergency shutdown.
Item Button Description
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OBD-II/EOBD Tools
1
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Basic Operation and Navigation Basic Navigation
7
3.3.2 Home Screen Icons
Each available diagnostic tool function is represented by a icon on the Home
screen. Select an icon from the Home screen to start a function. You can also use
the control buttons to select an icon. Use the directional button to highlight the
desired function and then press the Y/Accept to select it.
3.3.3 Title Bar
The title bar (Figure 3-2) at the top of the screen provides basic information about
current diagnostic tool operating conditions. Title bar options vary depending upon
vehicle make and model, what function is active, what test is being performed, or
what menu is selected. The title bar contains information only, there are no
selectable items.
Elements of the Title bar let you know at a glance:
•Which diagnostic tool function is active
•The current time
•Wi-Fi signal strength
•The source and status of the power being supplied to the diagnostic tool
A real time clock displays to the left of the power supply icon. The clock is powered
by a dedicated internal battery, so the correct time is maintained even when the
main battery pack is discharged. Use the Tools function to set the clock and format
how time is displayed. See Clock Settings on page 71 for additional information.
The Title bar displays other information that varies depending upon what functions
are being performed. Other information may include:
•The identification (ID) of the test vehicle
•The name of the active menu or function
•The name of the test being performed
Function Name Function Icon Description
Scanner
Used to communicate with the electronic control
systems of a vehicle. This function allows you to
retrieve diagnostic trouble codes (DTCs), view
PID data and perform diagnostic tests. See
Scanner on page 13 for details.
OBD-II/EOBD
Allows you to access generic OBD-II/EOBD data
and tests without identifying the vehicle being
tested. See OBD-II/EOBD on page 55 for
details.
Previous
Vehicles &
Data
Allows you to quickly reconfigure the diagnostic
tool to a recently tested vehicle and to access
saved data files.See Previous Vehicles and
Data on page 62 for details.
Tools
Allows you to adjust diagnostic tool settings to
your personal preferences and perform other
special functions. See Tools on page 66 for
details.
Icon Function Icon Function
Full Battery Charge Level -
Indicates power is being supplied
by the internal battery pack.
Horizontal bars diminish as the
battery discharges.
External Power Connected -
Indicates power is being supplied
through the data cable connection
to a vehicle or by the AC Power
Supply and charging the battery
pack.
Low Battery Charge Level -
Indicates the internal battery pack
is low and needs to be recharged
immediately. A warning message
will also display on the screen
when the battery gets low.
Wi-Fi Signal Strength - Indicates
signal strength of the wireless
network connection.
3 bars - full strength signal
1 bar - weak signal

Basic Operation and Navigation Basic Navigation
8
3.3.4 Common Toolbar Control Icons
Common control icon functions are described in the following table. Specific
function control icons are described in their applicable sections. Displayed control
icons vary depending on the active function or test.
Select a control icon to perform a function. You can also use the control buttons to
select an icon. Use the directional button to highlight the desired function and then
press the Y/Accept button to select it.
3.3.5 Scroll Bar
A vertical scroll bar appears along the right-hand edge of the screen when
additional data expands above or below what is currently on the screen
(Figure 3-3).
Figure 3-3 Scroll bar
1— Beginning - Moves to beginning of data displayed.
2— Step up - Moves up one increment of the data displayed.
3— Slider (position indicator) - Select and drag the Slider to scroll through
data. The slider indicates the relative position of the current screen to the
total available data.
4— Step down - Moves down one increment of the data displayed.
5— End - Moves to end of data displayed.
The Up and Down directional buttons can also be used to move through the data
one line at a time. Press and hold a directional button to rapidly scroll through data.
Icon Function Icon Function
Back - Returns to the
previously viewed screen.
Icon is located on the left-
hand edge of the toolbar.
Pause - Indicates PID
data from the vehicle is
being displayed.
Selecting pauses data
collection.
Home - Returns to the Home
screen. Icon is located next
to the Back icon on the left
side of the toolbar.
Record - Indicates the
data being displayed is
paused and not being
updated. Selecting
resumes data collection.
Save - Writes data from
buffer memory to a file. The
saved “movie” file can be
accessed for future
reference by selecting
Previous Vehicles and Data
> View Saved Data.
Tools - Opens the tools
menu.
The icons below are used to navigate through paused or saved data (“movie”)
files during review.
Step Forward - allows
forward movement in
singular steps.
(Note: To quickly step
forward during Scanner data
review, press and hold the
icon down.)
Step Back - allows
backward movement in
singular steps.
(Note: To quickly step
backward during
Scanner data review,
press and hold the icon
down.)
Skip Forward - allows
forward movement in
multiple steps.
Skip Back - allows
backward movement in
multiple steps.

Basic Operation and Navigation Screen Messages
9
3.4 Screen Messages
3.4.1 Snap-on Messages
Periodically messages will be displayed to inform you of software updates and
upgrades, as well as other important information.
These messages require confirmation to resume tool operation. Select Confirm or
OK to resume operation.
3.4.2 General System Messages
There are four types of general system messages that may be displayed:
3.4.3 Vehicle Communication Messages
When “no communication” messages are displayed, it indicates the diagnostic tool
and the vehicle electronic control module are not communicating.
The following conditions cause “no communication” messages to display:
•The diagnostic tool is unable to establish a communication link with the vehicle.
•The vehicle is not equipped with the system that was selected.
•There is a loose connection.
•There is a blown vehicle fuse.
•There is a wiring fault on the vehicle.
•There is a circuit fault in the data cable or adapter.
•Incorrect vehicle identification was entered.
Refer to the Vehicle Communication Software manuals for manufacturer-specific
problems.
Message Type Description
Loading and
Connecting
Loading and connecting messages display when the diagnostic tool is
performing an internal operation, such as loading a database,
establishing communications with the vehicle, or initiating a test. The
message automatically clears once the internal operation is complete.
Confirmation
Confirmation messages inform you when you are about to perform an
action that cannot be reversed or when an action has been initiated that
requires a confirmation to continue.When a response is not required, the
message displays briefly, then disappears.
Warning
Warning messages inform you when completing the selected action may
result in an irreversible change or in the loss of data. A confirmation is
required to continue
Error
Error messages inform you when a system or procedural error has
occurred, for example if the data cable becomes disconnected during
operation.

10
Section 4 Data Cable / Connections
This section describes basic data cable connection.
Connection of the data cable to the diagnostic tool and vehicle data link connector
(DLC) is required for diagnostic tool operations that require communication with the
vehicle.
Main Topic Links
•Data Cable Connection (OBD-II/EOBD Vehicles) page 10
•Data Cable Connection OBD-I Vehicles page 12
4.1 Data Cable Connection (OBD-II/EOBD
Vehicles)
IMPORTANT
Only use original Snap-on data cables and accessories with your
diagnostic tool. Total data cable length must not exceed 114.17 inches
(2.9 meters).
zBasic data cable connection procedure:
For OBD-II/EOBD compliant vehicles use the supplied DA-4 data cable.
1. Connect the data cable to the diagnostic tool (Figure 4-1).
Figure 4-1 DA-4 data cable (26-pin end) connection to diagnostic tool
2. After identifying the vehicle using the Scanner or OBD-II/EOBD function (see
Vehicle Identification on page 16) review any on-screen information that may
be provided for data cable connection, usage and DLC location (Figure 4-2).
NOTE
On-screen cable and adapter connection instructions may be provided while
using the Scanner and OBD-II/EOBD functions. The instructions may also
include the location of the vehicle DLC.
Figure 4-2 Vehicle data cable connection information
NOTE
The supplied 9 ft. (2.7 m) DA-4 data cable, includes an LED flashlight on the
vehicle DLC connector end (Figure 4-3). The LED flashlight is powered by the
diagnostic tool battery.
Connect: DA-4 Cable.
Location: Under drivers side dash.

Data Cable / Connections Data Cable Connection (OBD-II/EOBD Vehicles)
11
3. If needed, press the LED flashlight button switch on the end of the data cable
to turn the LED flashlight on (Figure 4-3), and locate the DLC.
Figure 4-3 DA-4 data cable LED flashlight
4. Connect the16-pin (J-1962) end of DA-4 cable (Figure 4-4) to the vehicle DLC.
Figure 4-4 DA-4 data cable (16-pin end) connection to vehicle DLC (typical DLC locations)
5. Select Continue once the data cable is connected.
The diagnostic tool establishes communication with the vehicle, then displays
a list of available tests, see Scanner on page 13 for additional information.
4.1.1 Optional OBD-II/EOBD Data Cable
A shorter 6 ft. (1.8 m) DA-4 OBD-II data cable is available as an option.
Contact your sales representative to purchase all optional accessories.
IMPORTANT
Only use original Snap-on data cables and accessories with your
diagnostic tool. Total data cable length must not exceed 114.17 inches
(2.9 meters).
4.1.2 Optional Ethernet Data Cable
For vehicles that support the use of an ethernet data cable connection, use optional
data cable DA-4EA.
Figure 4-5
Contact your sales representative to purchase all optional accessories.
21 3 4 5 6 7 8
109 11 12 13 14 15 16
DA-4
J-1962

Data Cable / Connections Data Cable Connection (OBD-II/EOBD Vehicles)
12
4.1.3 Data Cable Connection OBD-I Vehicles
For most OBD-I (non-OBD-II/EOBD) compliant vehicles you can use the supplied
DA-4 data cable with the optional DA-5 adapter and an optional manufacturer
specific OBD-I adapter(Figure 4-6).
a. The 26-pin end “A” of the DA-4 cable (Figure 4-6) connects to the diagnostic
tool.
b. The16-pin end “B” of the DA-4 cable (Figure 4-6) connects to the DA-5
adapter “C”.
c. One end of the manufacturer specific adapter “D” (Figure 4-6) connects to
the to the DA-5 adapter.
d. The other end of the manufacturer specific adapter “E” (Figure 4-6) connects
to the vehicle.
Figure 4-6 Typical connections using DA-5 adapter (two examples)
IMPORTANT
Only use original Snap-on data cables and accessories with your
diagnostic tool. Total data cable length must not exceed 114.17 inches
(2.9 meters).
Optional OBD-I Data Cables and Adapters
•An optional OBD-I data cable adapter (DA-5) is available, which allows
connection of the supplied DA-4 (OBD-II/EOBD) cable to the DA-5 adapter.
The DA-5 adapter connects to the manufacturer specific OBD-I adapter. This
may be used instead of the optional OBD-I data cable.
•An optional OBD-I data cable is available, which allows direct connection
between the diagnostic tool and the manufacturer specific OBD-I adapter. This
may be used instead of the optional DA-5 adapter.
•An optional U.S. domestic and Asian vehicle OBD-I adapter kit is available
for select vehicles. The kit includes multiple manufacturer specific adapters and
cables for OBD-I connection.
•An optional European vehicle OBD-I adapter kit is available for select
vehicles. The kit includes multiple manufacturer specific adapters, cables and
personality keys, providing OBD-I connection capabilities for select vehicles
such as Mercedes Benz, VW and BMW. Depending on your diagnostic tool,
optional European vehicle software may be required.
Contact your sales representative to purchase all optional accessories and
software.
DA-4 Data Cable DA-5 OBD-I Adapter
U.S. Domestic OBD-I
Typical - OBD-I Manufacturer
Specic Adapter
(e.g. CHRY-1 shown)
To Diagnostic Tool
European OBD-I
Typical - OBD-I Manufacturer
Specic Adapter
(e.g. BM-1B shown)
To Vehicle
“A”
“A”
“B”
“B”
“C”
“C”“D”
“D”
“E”
“E”