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Scanner
Operations
5.3 Operations
The Scanner allows you to establish a data link to the electronic control systems of the vehicle
being serviced in order to view live data parameters and perform tests. You can use selected
functional tests, get troubleshooting tips, and get vehicle-specific trouble codes for various vehicle
control systems such as engine, transmission, antilock brake system (ABS) and more.
The Scanner has two main functions:
1. Scanner—provides access to vehicle systems to perform functions such as reading codes,
viewing data, and conducting functional tests.
2. Fast-Track Troubleshooter—provides the diagnostic power of Fast-Track Troubleshooter, a
database of experience based information developed by master technicians.
After a system is selected and the Scanner establishes communication with the vehicle, a
Scanner Main menu, which lists available tests, displays.
Figure 5-5
Sample Scanner Main menu
Main menu options vary slightly by the year, make, and model of the test vehicle. The main menu
may include:
•
Data Display
— displays data parameter information from the vehicle control module.
Selecting may open a submenu of viewing options.
•
Codes Menu
—displays diagnostic trouble code (DTC) records from the vehicle control
module. Selecting may open a submenu of viewing options.
•
Clear Codes
—erases DTC records and other data from the ECM. This selection is found on
a Codes submenu for some models.
•
Functional Tests
—provides specific subsystem and component tests. The tests vary
depending on the manufacturer and model.
•
Actuator Tests
—similar to functional tests, checks the operation of certain actuators, such as
solenoid valves and relays.
•
Memory Resets
—allows you to reprogram adaptive values for certain components after
making repairs. Selecting opens a submenu. These options are found on the Functional Tests
Menu for some models.
