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Section 5 Scanner
Introduction
The Scanner function allows your diagnostic tool to communicate
with the electronic control modules (ECMs) of the vehicle being
serviced. This allows you to perform tests, view diagnostic trouble
codes (DTCs), and live data parameters from various vehicle
systems such as the engine, transmission,
antilock brake system (ABS) and more.
Main Topic Links
• Basic Operation page 43
• Basic Scanner Operation (Quick Start) page 44
• Identifying the Vehicle page 44
• Selecting a Vehicle System page 47
• Selecting a Vehicle System Test/Function page 48
• Codes Menu (Viewing Codes) page 50
• Clear Codes page 51
• Code Scan (with Vehicle System Report) page 52
• Data (Viewing PIDs) page 57
• Using Triggers page 68
• Functional Tests page 72
• Generic Functions page 73
• Troubleshooter page 74
• Intelligent Diagnostics page 75
• ADAS Recalibration Report page 218
SECURE VEHICLE GATEWAY
To protect against unauthorized vehicle network manipulation that may
put car systems and customers at risk, many automobile manufacturers
require authorized scan tool access to perform necessary diagnosis and
repair. To learn more about how to connect this diagnostic tool to
vehicles using a secured gateway visit www.snapon.com/gateway
5.1 Basic Operation
This section includes a basic overview of the Scanner function and basic operation
information.
5.1.1 Scanner Overview
Scanner is a menu driven application that communicates with vehicle control
modules to access diagnostic trouble codes (DTCs), parameter data (PIDs),
functional tests, and more. To navigate the application, use your fingertip or the
stylus to make onscreen menu selections to access the desired data, test or
function.
Screen messages appear when additional input is needed before proceeding.
There are three types of on-screen messages; confirmations, warnings, and errors.
• Confirmation Messages - Confirmation messages inform you when you are
about to perform an action that cannot be reversed or when an action has been
initiated and your confirmation is needed to continue. When a user-response is
not required to continue, the message displays briefly before automatically
disappearing.
• Warning Messages - Warning messages inform you when completing the
selected action may result in an irreversible change or loss of data.
• Error Messages - Error messages inform you when a system or procedural
error has occurred. Examples of possible errors include a disconnected cable
or a peripheral, such as a printer, is powered off.
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