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6. Diagnostics
The Diagnostics application can retrieve ECU information, read & erase DTCs, and view
live data. The Diagnostics application can access the electronic control unit (ECU) for
various vehicle control systems, including engine, transmission, antilock brake system
(ABS), airbag system (SRS).
Diagnosis
The Diagnostics application enables a data link to the electronic control system of the
test vehicle for vehicle diagnosis via OBDII connection. The application performs
functional tests, retrieves vehicle diagnostic information such as trouble and event codes
and live data for various vehicle control systems, such as engine, transmission, and ABS.
There are two options available when accessing 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.
After a section is made and the tablet establishes communication with the vehicle, the
corresponding function menu or selection menu displays.
Auto Scan
The Auto Scan function performs a comprehensive scanning over all the ECUs in the
vehicle to locate systems’ faults and retrieve DTCs. An example of the Auto Scan
interface is pictured below:
Figure 6-1 Sample Auto Scan Operation Screen
1. Navigation Bar
2. Main Section
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