Autel MaxiCOM MK900 Diagnostic Tool User Manual

Introduction

The Autel MaxiCOM MK900 is a professional-grade diagnostic tool designed for comprehensive vehicle system analysis and maintenance. This manual provides detailed instructions for setting up, operating, and maintaining your device, ensuring optimal performance and longevity.

Figure 1: Autel MaxiCOM MK900 Diagnostic Tool

The Autel MaxiCOM MK900 is a robust diagnostic tablet featuring an 8-inch touchscreen, designed for professional automotive diagnostics. It comes with a protective carrying case and an OBDII cable, ready for use in various automotive environments.

Product Overview and Key Features

The MaxiCOM MK900 offers advanced diagnostic capabilities and a user-friendly interface, making it suitable for a wide range of automotive repair tasks. Key features include:

• Comprehensive System Diagnostics: Performs OE-level diagnostics on all available vehicle systems, including Engine, ABS, SRS, Transmission, TPMS, and more.
• Extensive Service Functions: Provides over 40 commonly used reset and maintenance services.
• Bi-directional Control (Active Tests): Features over 3000 active tests to command vehicle components and verify system integrity.
• Wide Vehicle Coverage: Supports over 150 vehicle brands and 10,000+ models from 1996 to 2025.
• Advanced Protocol Support: Compatible with new communication protocols such as CAN-FD and DoIP.
• Enhanced Hardware: Equipped with an Android 11.0 operating system, RK3566 CPU, 4GB RAM, 64GB ROM, an 8-inch 1280*800 touchscreen, and a 7700mAh battery.
• Smart VIN Recognition: Supports AutoVIN, Scan VIN, and Scan License for quick vehicle identification.

Figure 2: MK900 vs. MK808BT PRO Comparison

This image highlights the significant upgrades of the MK900 over previous models like the MK808BT PRO, including faster processing, higher resolution screen, larger battery, and expanded diagnostic functions.

Figure 3: Enhanced Hardware Specifications

The MK900 features an RK3566 CPU, 4GB RAM, 64GB ROM, an 8-inch 1024x600 touchscreen, an 8-megapixel camera, and a 6100mAh battery, all contributing to its improved performance and stability.

Setup

1. Unpacking: Carefully remove the MaxiCOM MK900 tablet and all accessories from the packaging.
2. Initial Charge: Connect the device to a power source using the provided charger. Ensure the device is fully charged before first use.
3. Power On: Press and hold the power button to turn on the device.
4. Wi-Fi Connection: Navigate to "Settings" and connect the device to a stable Wi-Fi network. A strong internet connection is required for software updates and online features.
5. Software Download: Access the "Update" application on the main menu. Download and install the latest software for your desired vehicle brands. This process may take some time depending on your internet speed and the number of brands selected.
6. Registration: Follow the on-screen prompts to register your device with Autel. Registration is necessary to access updates and technical support.

Operating Instructions

1. OE-Level All System Diagnostics

The MK900 can access and diagnose all electronic control units (ECUs) in a vehicle. This includes, but is not limited to, Engine, Transmission, ABS, SRS (Airbag), TPMS, Body Control Module (BCM), and more.

• Read/Clear Codes: Retrieve diagnostic trouble codes (DTCs) from all systems and clear them after repairs.
• View Live Data: Display real-time data streams from various sensors and components in text, graph, or analog form.
• ECU Information: Retrieve detailed information about the control unit, such as unit type, version numbers, and other specifications.

Procedure:

1. Connect the OBDII cable to the vehicle's DLC (Data Link Connector) port and to the MK900 tablet.
2. From the main menu, select "Diagnostics".
3. Identify the vehicle using AutoVIN, manual input, or manual selection.
4. Select "Auto Scan" to perform a comprehensive scan of all systems, or choose a specific control unit (e.g., Powertrain, Body, Chassis) for targeted diagnosis.
5. Follow the on-screen instructions to read codes, view live data, or access ECU information.

Figure 4: All System Diagnosis Overview

The MK900 provides a comprehensive view of vehicle health by accessing all available systems, allowing for quick identification of faulty areas and efficient troubleshooting.

2. Special Functions (40+ Services)

The MK900 offers a wide array of maintenance and reset services for various vehicle systems. These functions are crucial for proper vehicle servicing after repairs or component replacements.

Commonly Used Services:

• Oil Reset
• EPB (Electronic Parking Brake) Reset
• BMS (Battery Management System) Reset
• ABS Bleed
• TPMS (Tire Pressure Monitoring System) Reset
• DPF (Diesel Particulate Filter) Regeneration
• Injector Coding
• SAS (Steering Angle Sensor) Calibration
• Suspension Calibration
• Throttle Adaptation
• Gear Learning
• Sunroof Initialization
• Seats Calibration
• Headlight Matching
• A/F Setting
• WIN DR Roof
• CHG Tire Size
• Cylinder
• Turbocharging
• Limit
• Trans Adaptation
• Neutral Gear Position Learning
• Torque Sensor Adjustment
• Signal Check
• Yaw Rate Sensor (YRS) Learn
• Clutch Pedal Position Learn
• Cylinder Power Balance
• Component Matching
• Stop/Start Reset
• Transport Mode
• Auto-Door Lock

Procedure for Special Functions:

1. Connect the MK900 to the vehicle.
2. Identify the vehicle (Auto detect, manual input, or manual selection).
3. Select "Service" from the main menu.
4. Choose the desired special function from the list.
5. Follow the detailed on-screen instructions to complete the procedure.

Figure 5: 40+ Service Functions

The MK900 provides a comprehensive suite of over 40 service functions, enabling technicians to perform essential maintenance and resets efficiently.

3. Bi-directional Control (Active Tests)

Bi-directional control allows the diagnostic tool to send commands to vehicle ECUs to activate specific components or systems, verifying their functionality without using the vehicle's controls. This helps in quickly pinpointing faulty components.

Examples of Accessible Actuators:

• Radiator Fan activation
• Throttle modulation
• Window and mirror operation
• Injector buzz test
• Interior/exterior lights and horn activation
• Fuel pump activation
• A/C clutch cycling
• Brake vacuum pump test
• And many more, with over 3000 test menus available.

Procedure for Active Tests:

1. Connect the MK900 to the vehicle.
2. Identify the vehicle (Auto detect, manual input, or manual selection).
3. Select "Diagnostics" and then navigate to the relevant control unit (e.g., Powertrain, Body, Chassis).
4. Choose "Active Test" from the options.
5. Select the specific component or system you wish to test.
6. Follow the on-screen instructions to perform the test and observe the component's response.

Figure 6: Bi-directional Control (Active Tests)

The bi-directional control feature allows the MK900 to send commands to vehicle components, enabling technicians to quickly verify functionality and diagnose issues.

Vehicle Coverage and Compatibility

The Autel MaxiCOM MK900 boasts extensive vehicle coverage, supporting a wide range of makes and models globally.

• Global Coverage: Supports over 150 vehicle brands and 10,000+ models from 1996 to 2025, including American, Asian, and European vehicles.
• CAN-FD Protocol: Compatible with newer vehicle models utilizing the CAN-FD protocol, such as 2020+ GM models (e.g., Onix, Tracker, Suburban, Tahoe, Silverado).
• DoIP Protocol: Supports vehicles using the DoIP protocol, including Volvo (after 2018), Land Rover/Jaguar (after 2017), and BMW F/G Chassis models.
• FCA SGW Gateway Access: Provides licensed diagnostic access to 2018+ FCA vehicles (Chrysler, Dodge, Jeep, Fiat, Alfa Romeo) equipped with the Secure Gateway (SGW) module. This allows for clearing codes, bi-directional functions, active tests, and relearns on these vehicles.
• Renault SGW Gateway Access: With specialized software and device (purchased separately), it can access restricted ECMs of 2015+ Renault RGW-equipped vehicles (e.g., Kadjar, Megane IV, Scenic IV).
• Smart VIN Recognition: Features Scan VIN/License plate recognition for most 2006+ vehicles, streamlining the vehicle identification process.

Figure 7: Extensive Vehicle Compatibility

The MK900's broad vehicle coverage and support for modern communication protocols ensure its utility across a diverse range of automotive applications.

Hardware Specifications

Maintenance

• Software Updates: Regularly check for and install software updates via the "Update" application. Your purchase includes one year of free software updates. After the initial year, updates are available through a paid subscription. The device will continue to function without renewal, but new features and vehicle coverage will not be added.
• Cleaning: Use a soft, damp cloth to clean the tablet screen and body. Avoid abrasive cleaners or solvents.
• Storage: Store the device in its protective case in a cool, dry place when not in use to prevent damage.
• Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge the device regularly, even if not in constant use.

Troubleshooting

If you encounter issues with your Autel MaxiCOM MK900, consider the following general troubleshooting steps:

• Device Not Powering On: Ensure the battery is charged. Connect the charger and attempt to power on again.
• Connection Issues: Verify that the OBDII cable is securely connected to both the vehicle's DLC and the MK900. Check the vehicle's ignition status.
• Software Malfunctions/Lag: Ensure the device has sufficient free memory. Close unnecessary applications. Perform a software update to the latest version. If issues persist, a factory reset may be necessary (back up important data first).
• Vehicle Communication Errors: Confirm the vehicle's ignition is on. Verify the correct vehicle make, model, and year have been selected. Check for any blown fuses in the vehicle's OBDII port circuit.
• Function Not Working: Ensure the specific function is supported for your vehicle's make, model, and year. Some advanced functions may require specific vehicle conditions or procedures to be followed. Refer to the on-screen instructions carefully.

For persistent issues or advanced troubleshooting, please contact Autel technical support.

Warranty and Support

• Warranty: The Autel MaxiCOM MK900 comes with a 1-year quality assurance warranty from the date of purchase.
• Software Updates: Enjoy 12 months of free software updates from the date of device registration.
• Technical Support: Autel provides 24/7 technical support. For assistance, you can reach Autel support at 1-833-436-5880 (Mon-Fri, 9 AM - 6 PM EST).
• Online Resources: Visit the official Autel website or your purchase platform for additional resources, FAQs, and community forums.

Figure 8: Autel Support and Assurance

Autel is committed to providing comprehensive support and quality assurance for its products, ensuring customer satisfaction.