There are two options available when accessing the Autel MK908P Diagnosis section:
1. Auto Scan – starts auto scanning for all the available systems on the vehicle
2. Control Units – displays a selection menu of all available control units of the test vehicle
1
Auto Scan
The Auto Scan function performs a comprehensive scanning over all the systems on the vehicle’s ECU in order to locate fault systems and retrieve
DTCs. The sample operation interface of Auto Scan displays as above:
1. Navigation Bar
2. Main Section
3. Functional Buttons
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Navigation Bar
1. List Tab – displays the scanned data in list format
2. Progress Bar – indicates the test progress

Main Section
A. List Tab
Column 1 – displays the system numbers
Column 2 – displays the scanned systems
Column 3 – displays the diagnostic marks indicating different conditions of the test result:
Indicates that the scanned system may not support the code reading function, or there is a communication error between the tester and the
control system.
Indicates that the vehicle control system has been detected, but the tester cannot accurately locate it.
Fault | #: Indicates there is/are detected fault code(s) present; “#” indicates the number of the detected faults.
Pass | No Fault: Indicates the system has passed the scanning process and no fault has been detected.
Functional Buttons
The table below provides a brief description of the Functional Buttons’ operations in Auto Scan:

Control Units
This option allows you to manually locate a required control system for testing through a series of choices. You simply follow the menu driven procedure, and make proper selection each time; the program will guide you to the diagnostic function menu after a few choices you’ve made.

The Function Menu options vary slightly for different vehicles. The function menu may include:
ECU Information – provides the retrieved ECU information in detail.
Selecting opens an information screen.
Read Codes – displays detailed information of DTC records retrieved
from the vehicle control module.

Erase Codes – erases DTC records and other data from the ECM.
Live Data – retrieves and displays live data and parameters from the
vehicle’s ECU.
Active Test – provides specific subsystem and component tests. This
selection may appear as Actuators, Actuator Test, or Function Tests,
etc., and the tests options vary depending on the manufacturer and model.
Special Functions – provides component adaptation or variant coding functions for custom configurations, and also allows you to reprogram
adaptive values for certain components after making repairs. Depending on the test vehicle, this selection may sometimes appear as Control
Unit Adaptations, Variant Coding, Configuration or something similar.
NOTE: With the diagnostic toolbar on top of the screen throughout the whole diagnostic procedures, you are allowed to make various controls of the diagnostic information at anytime, such as printing and saving the displayed data, get help information, or perform data logging, etc.

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