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Making Selections
The Diagnostics application is a menu-driven program that presents a series of choices
one at a time. As you select from a menu, the next menu in the series appears. Each
selection narrows the focus and leads to the desired test. Use your fingertip or the stylus
pen to make menu selections.
Main Menu
The Diagnostics application allows you to establish a data link to the electronic control
system of the test vehicle via the VCI for vehicle diagnosis, service or programming. You
can operate functional tests, retrieve vehicle diagnostic information such as trouble
codes, event codes and live data, and perform ECU reprogramming, for various vehicle
control systems, such as engine, transmission, ABS, and more.
The Vehicle Diagnostics screen (Figure 4-2) has three main parts:
1. Diagnosis — a comprehensive section which includes all available functions:
reading, clearing, saving and printing diagnostic information, as well as performing
active tests and special functions.
2. Hot Functions — a separate section designed to perform vehicle scheduled service
and maintenance, such as to reset the service lights and perform calibration for
various systems.
3. Programming/Coding — a separate section designed for quick access to ECU
reprogramming operations.
After a section is selected and the tablet establishes communication with the vehicle via
the VCI, the corresponding function menu or selection menu displays.
Diagnosis
There are two main functions of the Diagnosis section:
1. Auto Scan — starts auto scanning for all the available systems on the vehicle
2. Control Unit — displays a selection menu of all available control units of the test
vehicle.
Auto Scan
The Auto Scan function performs a comprehensive scan of all the systems on the
vehicle’s ECU in order to locate fault systems and retrieve DTCs.
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