1. Introduction
The XTOOL Advancer AD20 PRO is an advanced OBD2 scanner designed for comprehensive vehicle diagnostics. It offers full system error code reading and clearing, battery testing, maintenance light reset, detailed driving analysis, and innovative features like HUD and smart meter functions. Compatible with both iPhone and Android devices via Bluetooth 5.0, the AD20 PRO provides lifetime free software updates, ensuring broad vehicle coverage and up-to-date diagnostic capabilities.
2. Key Features
- Full system diagnosis for reading and clearing error codes across various vehicle systems.
- Battery Test function to monitor car battery health, generator output, and starting voltage.
- Maintenance light reset capability after vehicle servicing.
- Driving Record and Driving Analysis functions, tracking distance, fuel consumption, and driving behavior.
- Head-Up Display (HUD) and Smart Meter functions for real-time data visualization.
- Lifetime free software updates and high-quality hardware with Bluetooth 5.0 connectivity.
Product Comparison
The AD20 PRO is an updated version of the AD20, incorporating all functions of previous models like AD10 and ELM327, with added diagnostic capabilities.
| Feature | ELM327 | AD10 | AD20 | AD20PRO |
|---|---|---|---|---|
| Bluetooth | - | 4.2 | 5.0 | 5.0 |
| OBD Functions | β | β | β | β |
| Smog Check | β | β | β | β |
| OBD Live Data | β | β | β | β |
| Engine Diagnostic | Γ | Γ | β | β |
| Full System Diagnostic | Γ | Γ | Γ | β |
| Fuel Consumption Analysis | Γ | Γ | β | β |
| Performance Test | Γ | β | β | β |
| Smart Dash | Γ | β | β | β |
| More Protocol Support | Γ | Γ | β | β |
| Software Update | Γ | Lifetime Free Updates | Lifetime Free Updates | Lifetime Free Updates |
| Driving Record | Γ | β | β | β |
| Driving Analysis | Γ | Γ | β | β |
| Battery Test | Γ | Γ | Γ | β |
| Maintenance Light Reset to Zero | Γ | Γ | Γ | β |
3. Setup & Activation
- Download the App: Download and install the "Advancer AD20" application from your device's APP store (for iOS) or Android market (for Android). You can also scan the QR code on the product packaging.
- Register and Log In: Register and log in to your account within the Advancer application. Email verification is required.
- Connect to Vehicle: Plug the XTOOL Advancer AD20 PRO device into your car's OBD-II port.
- Bind the Device: Within the app, scan the product code on your AD20 PRO device to bind it to your account.
- Establish Bluetooth Connection: Ensure Bluetooth is enabled on your mobile device and connected to the AD20 PRO within the application.
- Start Diagnosis: Once connected, you can begin using the diagnostic and analysis functions.

4. Operating Instructions
4.1 Full Systems Diagnostic
The XTOOL AD20 PRO can access most car Electronic Control Units (ECUs) to read and clear error codes across a full range of car models and systems. This includes, but is not limited to: ABS System, Engine System, SAS System, TPMS System, IMMO System, Battery System, Oil Service System, SRS System, DPF System, Air Conditioning System, and Transmission System.
Note: This function is primarily for reading and clearing error codes for all systems. For specific car model compatibility, please contact XTOOL support.

4.2 Battery Test
The AD20 PRO supports comprehensive battery testing. It checks the battery voltage, generator power generation, and starting voltage data, providing real-time feedback on your car's battery health.

4.3 Maintenance Light Reset
After your car undergoes maintenance, use the AD20 PRO to reset the maintenance light. This helps you keep an accurate record of your car's service intervals.

4.4 Error Code Analysis
XTOOL engineers categorize error codes into three levels to help users understand their severity:
- Level 1: The vehicle can be driven normally without immediate impact on driving.
- Level 2: It is recommended to visit a repair shop as soon as possible for vehicle inspection and repair.
- Level 3: Stop driving immediately to prevent potential accidents or further damage.
The Advancer AD20 app provides detailed explanations for the generation of OBD2 error codes and offers guidance on how to address them.
Note: Currently, the system supports analysis of OBD2 error codes only. Engine-specific error code analysis is not yet supported.

4.5 OBD Live Data
The AD20 PRO supports OBD2 data flow analysis, allowing you to view real-time engine data such as water tank temperature, throttle speed, and other critical parameters.

4.6 Trip Recording & Analysis
The AD20 PRO records each trip, providing data on distance traveled and average driving speed. This helps in planning your itinerary. For each trip, the app offers specific data analysis including driving time, distance, average fuel consumption (for reference), average speed, and maximum speed. It also records driving behaviors such as sudden acceleration, sharp turns, emergency braking, and fatigue driving, enabling you to understand and improve driving habits for safer travel.

4.7 Performance Testing
Professionally test your car's performance, including the time for 0-100 km/h acceleration. The test results include maximum driving speed, engine load, and coolant temperature, which are key indicators of vehicle performance.

4.8 HUD Function
The AD20 PRO features a Head-Up Display (HUD) function. When connected to your car, you can switch your mobile phone to HUD mode and place it under the car's windshield. The real-time engine data will then be projected onto the glass, providing a convenient way to monitor key information while driving. The engine display interface is continuously updated to offer more colorful HUD display options.

5. Specifications
- Communication Interface: OBD-II
- Free Update Period: Lifetime
- Special Features: Bluetooth 5.0
- Software Update: Yes (Lifetime Free Updates)
- Language Support: English, Russian, Spanish (more languages to be added in future updates including Arabic, French, German, Japanese, Korean, Polish, Portuguese)
- Software Version: Newest
- Hardware Version: Newest
- Brand Name: XTOOL
- Origin: Mainland China
- Item Type: Code Readers & Scan Tools
- Certification: CE
- Model Name: XTOOL Advancer AD20PRO
- Package Dimensions: 12 cm (Length) x 9 cm (Width) x 6 cm (Height)
- Package Weight: 0.5 kg
Supported Protocols
- SAEJ1850 PWM (41.6Kbaud)
- SAE J1850 VPW (10.4Kbaud)
- ISO9141-2 (5 baud init, 10.4Kbaud)
- ISO14230-4 KWP (5 baud init, 10.4 Kbaud)
- ISO14230-4 KWP (fast init, 10.4 Kbaud)
- ISO15765-4 CAN (11bit ID, 500 Kbaud)
- ISO15765-4 CAN (29bit ID, 500 Kbaud)
- ISO15765-4 CAN (11bit D, 250 Kbaud)
- ISO15765-4 CAN (29bit ID, 250 Kbaud)
Supported Car Models
The XTOOL Advancer AD20 PRO supports over 120 car makes and 10,000+ vehicle models. It is compatible with most OBD2 compliant cars manufactured after 1996. Please note that the implementation time of the OBD-II agreement may vary across different continents.


6. Troubleshooting
When the AD20 PRO detects error codes, it categorizes them by severity:
- Level 1: Minor issues, generally safe to continue driving.
- Level 2: Moderate issues, repair recommended soon.
- Level 3: Critical issues, stop driving immediately to prevent damage or accidents.
The Advancer AD20 application provides detailed explanations for detected OBD2 error codes and suggests appropriate solutions. If you encounter persistent issues or codes that are not clearly explained, please refer to the "Warranty & Support" section for assistance.
7. Maintenance
- Software Updates: The AD20 PRO receives lifetime free software updates. Regularly check the Advancer AD20 app for available updates to ensure optimal performance and compatibility with new vehicle models and features.
- Device Care: Keep the device clean and free from dust and moisture. Store it in a dry, cool place when not in use.
- Maintenance Light Reset: Utilize the maintenance light reset function in the app after every car service to keep track of your vehicle's maintenance schedule.
8. User Tips
- Car Compatibility: For specific car model compatibility, especially for newer or less common models (e.g., Skoda Kamiq), it is recommended to contact XTOOL support directly to confirm if the AD20 PRO works for your vehicle.
- Multiple Car Binding: The AD20 PRO supports simultaneous binding of multiple car models. If you own several vehicles, you only need one AD20 PRO device, but you will need to scan the product code for each car you wish to bind.
- Provide Feedback: If you have suggestions or encounter any discomfort during use, you can submit your comments and feedback online through the app. XTOOL values user input for future upgrades and optimizations.

9. Warranty & Support
The XTOOL Advancer AD20 PRO comes with lifetime free software updates, ensuring your device remains current with the latest vehicle data and features.
For technical assistance, compatibility inquiries, or any other support needs, please contact XTOOL Customer Support:
- Email: support@xtooltech.com
You can also provide feedback and suggestions directly through the Advancer AD20 application, which helps XTOOL in continuous product improvement.





