Autel MaxiCOM MK900BT Diagnostic Tool User Manual

1. Introduction

The Autel MaxiCOM MK900BT is a state-of-the-art bidirectional diagnostic tool designed for comprehensive vehicle analysis and maintenance. It offers advanced functionalities that surpass previous models, providing professional technicians with efficient and accurate diagnostic solutions. Key features include extensive active tests, numerous service functions, and support for modern communication protocols like CAN FD and DOIP.

2. Setup Guide

2.1 Unboxing and Initial Inspection

Upon receiving your MaxiCOM MK900BT, carefully open the packaging and inspect all components. The standard package includes the main unit, MaxiVCI V150, power adapter, USB Type-C cable, quick reference guide, soft cloth, and a carrying case.

2.2 Powering On and Initial Configuration

The device runs on an improved Android 11.0 OS with a lightning-fast quad-core RK3566 CPU processor. It features an 8-inch 1280x800 display and a 7700mAh rechargeable battery for extended operation. Power on the device and follow the on-screen prompts for initial setup, including language selection and Wi-Fi connection.

2.3 VCI Connection

The MaxiCOM MK900BT utilizes a wireless VCI (Vehicle Communication Interface) for seamless communication with the vehicle's OBD2 port. This allows for a working range of up to 33 feet (10 meters), providing flexibility during diagnostics.

3. Operating Instructions

3.1 System Diagnostics

The MK900BT performs OE-level all system diagnostics, allowing you to read/clear codes, display live data (5-in-1), record and playback data, and retrieve ECU information from all available systems such as ABS, ECM, BCM, SRS, and TCM. It supports Auto VIN and Scan License/Auto Scan 2.0 for quick vehicle identification.

3.2 Bidirectional Control and Active Tests

With over 3000 active tests, the MK900BT can send commands to ECUs and monitor actuator operations, quickly locating faulty components. This includes testing components like windows, rear mirrors, sunroof, wipers, fuel injectors, coolant fans, radiator fan, AC clutch, and coolant pump.

3.3 Service Functions

The tool offers over 40 maintenance services for 150+ brands and 10,000 vehicles from 1996-2025. Popular services include Oil Reset, ABS Bleed, SAS Calibration, Injector Coding, SRS, Throttle Reset, Gearbox Reset, and Battery Registration. It also includes 12+ advanced resets like rain/light sensor reset and HVAC/SUS calibration.

3.4 Advanced Functions

The MK900BT supports new protocols like CAN FD (for GM 2019+) and DOIP (for Volvo 2018+, Jaguar&Land Rover 2017+, BMW F&G chassis). It features one-click WiFi printing for diagnostic reports and offers cloud report management for data storage. Additional high-end functions include Battery Test (requires BT506), Endoscope support (MV108S/MV105S), Remote Desk, and FCA AutoAuth for 2018+ FCA and newer Renault cars.

4. Maintenance

4.1 Software Updates

The MaxiCOM MK900BT comes with 1 year of free software updates. Regular updates ensure compatibility with the latest vehicle models and provide new features and bug fixes. It is recommended to update the device every 2-3 years to maintain optimal performance and coverage.

4.2 Battery Care

The device is equipped with a 7700mAh rechargeable Lithium Polymer battery. To maximize battery life, avoid extreme temperatures, fully charge the device before long periods of inactivity, and store it in a cool, dry place.

4.3 Cleaning and Storage

Use the provided soft cloth to clean the display and exterior of the device. Avoid using abrasive cleaners or solvents. When not in use, store the MaxiCOM MK900BT and its accessories in the provided carrying case to protect it from dust and damage.

5. Troubleshooting

5.1 Connectivity Problems

If the VCI fails to connect wirelessly, ensure it is properly plugged into the vehicle's OBD2 port and that the device's Bluetooth is enabled. Check for any obstructions that might interfere with the wireless signal. If Wi-Fi connection issues arise, verify your network settings and signal strength.

5.2 Diagnostic Errors

Should you encounter unexpected diagnostic errors or compatibility issues, ensure the device software is up to date. Refer to the on-screen prompts for specific error codes. For persistent issues, contact Autel customer support with your vehicle's make, model, year, VIN, and a description of the function you are attempting to perform.

6. Specifications

7. Warranty and Customer Support

The Autel MaxiCOM MK900BT diagnostic tool comes with a 1-year warranty and 1 year of free software updates. After the initial free update period, a subscription fee applies for continued updates.

For technical assistance, compatibility checks, or to request a PDF user manual, please contact Autel customer support via email at autelsupply@outlook.com. Please provide your device's serial number for language authorization if needed.

An official user manual is also available for download: Download User Manual (PDF)