Autel Maxidiag MD806 pro scanner is a Combination of Autel MaxiCheck Pro and the Autel Maxidiag Elite MD802. It is an excellent tool for car repair shop owners, professional mechanics, and DIYer enthusiasts.
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The Autel MaxiDiag MD806 Pro scanner coMBines the capabilities of the Autel MaxiCheck Pro and the Autel MaxiDiag Elite MD802. This diagnostic tool is ideal for car repair shop owners, professional mechanics, and DIY enthusiasts. While not a high-level scanner, it also exceeds entry-level functionality. The Autel MD806 Pro is a full-system diagnostic scanner that quickly establishes a direct data link to the vehicle’s electronic control units (ECUs).
The all-new MaxiDiag MD806 elevates your diagnostic experience with advanced service functions including oil service reset, battery registration and reset, parking brake pad relearn after replacement, steering angle sensor relearn, and diesel particulate filter regeneration. It provides access to Engine, Transmission, ABS, and Airbag (SRS) systems for comprehensive diagnostics—all packed into a compact 4-inch handheld device.

Guides you directly to the fix and eliminates guesswork. The MD806 Pro enables you to:
The MaxiDiag MD806 Pro supports ABS, SRS (Airbag), Engine, Transmission, Oil Reset, EPB, DPF, SAS, BMS, Throttle, and A/F adjustment functions for most modern vehicles. Access these special functions by selecting “Service” from the Main Menu.
The Engine Oil Life System calculates when to change the engine oil and filter based on vehicle usage. An oil change is required when indicated by the display or per the recommended maintenance schedule. After every oil change—even if performed before the service indicator activates—reset the system so it can accurately calculate the next oil change interval.
This function supports safe and effective maintenance of electronic braking systems. Important guidelines include:
Steering Angle Sensor Calibration permanently stores the current steering wheel position as the straight-ahead position in the sensor’s EEPROM. Before calibration, the front wheels and steering wheel must be precisely aligned to the straight-ahead position. The vehicle identification nuMBer (VIN) is also read from the instrument cluster and stored in the sensor’s EEPROM. Upon successful calibration, the sensor’s fault memory is automatically cleared.
The DPF function enables multiple operations on the Diesel Particulate Filter system without requiring a visit to a main dealer. The tool supports DPF regeneration, DPF component replacement teach-in, and DPF teach-in after replacing the engine control unit.
The BMS function allows the scan tool to evaluate battery charge state, monitor closed-circuit current, register battery replacement, activate the vehicle’s rest state, and charge the battery via the diagnostic socket.

This fast-access feature enables quick testing of drive train systems on OBD II-compliant vehicles. When multiple vehicle control modules are detected, you’ll be prompted to select the relevant module—typically the Powertrain Control Module (PCM) or Transmission Control Module (TCM).
This function displays the test vehicle’s system status:
Codes can be read with the key on and engine off (KOEO) or key on and engine running (KOER). This function provides detailed diagnostic trouble code information to help technicians resolve issues effectively.
Performed with the key on and engine off (KOEO), this function deletes diagnostic trouble codes once the underlying fault has been repaired.
The Record Data function allows recording vehicle modules’ Parameter Identification (PID) data to help diagnose intermittent vehicle problems. You can save data files to the Micro SD card and then use the Playback function to view the saved files.
Freeze Frame Data allows the technician to view the vehicle’s operating parameters at the moment a DTC (Diagnostic Trouble Code) is detected. For example, the parameters may include engine speed (RPM), engine coolant temperature (ECT), or vehicle speed sensor (VSS), among others. This information aids the technician by enabling duplication of these parameters for diagnostic and repair purposes.
The I/M Readiness function checks the operation of the Emission System on OBD II compliant vehicles. It is an excellent feature to use before having a vehicle inspected for compliance with a state emission program.
OBD II regulations set by SAE require relevant vehicle monitors and tests on the oxygen (O2) sensors to identify problems related to fuel efficiency and vehicle emissions. These tests are not on-demand; they run automatically when engine operating conditions fall within specified limits. The test results are stored in the vehicle’s on-board computer memory.
The On-Board Monitor Test is useful after servicing or after erasing a vehicle’s control module memory. For non-CAN-equipped vehicles, this test retrieves and displays results for emission-related powertrain components and systems that are not continuously monitored. For CAN-equipped vehicles, it retrieves and displays results for both continuously and non-continuously monitored emission-related powertrain components and systems. Test and component IDs are determined by the vehicle manufacturer.
The Component Test function initiates a leak test for the vehicle's EVAP system. The scan tool does not perform the leak test itself but commands the vehicle's on-board computer to start the test. Different vehicle manufacturers may use different criteria and methods to stop the test once initiated. Always refer to the vehicle service manual for instructions on how to stop the test before starting the Component Test.
The Vehicle Info function retrieves Vehicle Identification Number (VIN), Calibration ID Numbers (CINs), Calibration Verification Numbers (CVNs), and In-use Performance Tracking data from 2000 and newer vehicles that support Mode 9.
The Modules Present function displays module IDs and communication protocols for OBD II modules in the vehicle.
The DTC Lookup function enables users to search for definitions of Diagnostic Trouble Codes (DTCs) stored in the built-in DTC library.

MD806 Pro supports global OBD II coverage for U.S. domestic, Asian, and European makes and models. It includes support for all OBD II protocols, all 10 test modes, and enhanced OBD II Mode 6.
**Comparison of MD806 Pro Full System VS MD802
