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Control Unit
Manually locate a required control system for testing through a series of choices. Follow
the menu driven procedures and make proper selections; the application guides the user
to the proper diagnostic function menu based on selections.
The Function Menu options vary slightly for different vehicles and may include:
ECU Information
— provides the retrieved ECU information in detail. An information
screen opens upon selection.
Trouble Codes
— includes
Read Codes
and
Erase codes
functions. Displays
detailed information of DTC records retrieved from the test vehicle
’s ECU and erases
DTC records and other data from the
test vehicle’s ECU.
Freeze Frame
— displays the freeze frame data of the DTCs.
Live Data
— retrieves and displays live data and parameters from the test vehicle’s
ECU.
Active Test
— provides specific subsystem and component tests.
Special Functions
—
performs various component adaptations.
NOTE
Toolbar functions such as saving and printing of test results can be performed throughout
diagnostic testing. Data logging and access to help information are also available.
To perform a diagnostic function
1. Establish communication with the test vehicle.
2. Identify the test vehicle by selecting from the menu options.
3. Select the
Diagnosis
section.
4. Locate the required system for testing by
Auto Scan
or through menu driven
selections in
Control Units
.
5. Select the desired diagnostic function from the
Function Menu
.
Figure 4-10
Sample Function Menu
