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Chapter 5
Scanner
The Scanner establishes a data link to the electronic control systems of the vehicle being
serviced. This allows you to retrieve diagnostic trouble codes (DTCs), view live data parameters,
and perform tests. Scanner testing requires connecting the scan tool to the test vehicle using the
data cable and test adapters. On screen instructions tell you how to connect the Scanner.
5.1 Vehicle Identification
The Scanner information presented is provided by the ECM of the vehicle. Therefore, certain
attributes of the vehicle must be entered into the scan tool to ensure the test data displays
correctly. This vehicle identification sequence is menu driven, simply follow the screen prompts to
make a series of choices. Each selection advances you to the next screen. Exact procedures may
vary by the make, model, and year of the test vehicle.
z
To identify a vehicle for Scanner testing:
1. Tap the
Scanner
button on the Home screen.
A list of manufactures displays (
Figure 5-1
Sample manufacturer list
The list includes Demonstration, which opens the Demonstration program (see
2. Select the vehicle manufacturer from the list.
A model year menu displays.
3. Select the vehicle year from the menu.
A list of vehicle types or models displays. Several selections may be required to complete the
vehicle identification, follow the screen prompts to enter the required information.
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