1. Introduction
The XTOOL Advancer AD20 is a smart OBD dongle designed for comprehensive vehicle diagnostics. It integrates a diagnostic module with cloud services, connecting to your smartphone via Bluetooth. The AD20 is an ideal tool for personal car owners and DIY enthusiasts, offering a range of functions including DTC scanning, component tests, trip recording, and driving skills monitoring.
This manual provides detailed instructions on how to set up, operate, and maintain your XTOOL Advancer AD20 OBDII Scanner, ensuring you get the most out of its advanced diagnostic capabilities.
2. Key Features
- Lifetime Free Updates: All functions come with one-click online updates and lifetime free updates to support new software and vehicle models.
- Engine Diagnostics: Reads and clears OBD2 error codes.
- Full OBD2 Functions: Performs all 10 modes of OBD2 tests including reading/clearing fault codes, live data, freeze frame, I/M Readiness (smog check), O2 monitor tests, component tests, on-board monitor tests (Mode $06), vehicle information, and MIL status.
- Check Engine Light Management: Turns off the Check Engine Light and helps prepare your car for annual smog checks by providing emission-related fault codes (DTCs), freeze frame data, and data streams (PID).
- Car Performance Tracking: Provides performance tests and trip analysis to track engine performance (acceleration, fuel efficiency), coolant temperature, engine speed, and voltage. Pushes warning messages for high coolant temperature or detected OBD2 fault codes.
- Smart Dash & HUD Function: Projects engine information onto the windshield, reducing driver distraction and improving safety.
- Advanced Battery Test: Monitors battery voltage, generator power generation, and starting voltage data in real-time (before, during, and after vehicle start).
- Driving Records & Analysis: Displays trip route maps and analyzes key vehicle performance data such as driving distance, maximum speed, maximum RPM, maximum temperature, and average fuel consumption. Records rapid acceleration, sharp turns, and emergency situations to encourage good driving habits.
- Wide Compatibility: Supports Android and iOS mobile phones and tablets. Utilizes Bluetooth 5.0 for stable connection.
- Multi-Language Support: Available in English, Russian, Spanish, French, German, Italian, Japanese, Korean, Arabic, Polish, and Portuguese.
- Extensive Vehicle Coverage: Supports over 120 brands and 10,000+ car models (12V gasoline/petrol cars) compliant with OBD2 protocols.
3. Setup Guide
Follow these steps to set up your XTOOL Advancer AD20 OBDII Scanner:
- Download the App: Download the “Advancer AD20” App from your device's app store (Google Play Store for Android or Apple App Store for iOS).
- Register and Log In: Open the AD20 App, register a new account, and log in.
- Plug into Vehicle: Locate your vehicle's OBDII port (usually under the dashboard on the driver's side) and plug in the AD20 device. The device features a flash light mode to help locate the port in the dark.
- One-Click Bluetooth Pairing: Enable Bluetooth on your smartphone or tablet. The app will guide you through a one-click pairing process with the AD20 device.
- Turn On Car Engine: Start your car's engine.
- Start Diagnosis: Once connected, you can begin using the diagnostic functions within the app.
4. Operating Instructions
The XTOOL Advancer AD20 offers a range of diagnostic and monitoring functions accessible through its dedicated smartphone application. Below are the primary operational modes:
4.1. OBDII Diagnostics (10 Modes)
The AD20 performs all standard OBD2 diagnostic functions to help identify and resolve engine-related issues.
- Read/Clear Codes: Access and clear Diagnostic Trouble Codes (DTCs), including generic, manufacturer-specific, and pending codes. The app provides detailed descriptions, causes, and maintenance help for each fault.
- Live Data: View real-time sensor data in numerical or graphical format. Monitor parameters such as engine RPM, vehicle speed, coolant temperature, fuel system status, and more.
- Freeze Frame: When an emission-related fault occurs, the ECU stores a snapshot of operating conditions. This data helps pinpoint the cause of the fault.
- I/M Readiness (Smog Check): Check the status of emission-related monitors to ensure your vehicle is ready for an emissions test.
- O2 Monitor Test: Evaluate the functionality of oxygen sensors in the exhaust system.
- Component Test: Test specific emission system components to ensure they are operating correctly.
- On-Board Monitor Test (Mode $06): Access results of on-board diagnostic monitoring tests for specific components/systems.
- Retrieve Vehicle Information: Access vehicle details such as VIN (Vehicle Identification Number), calibration ID, and calibration verification numbers.
4.2. Advanced Functions
Beyond standard OBDII, the AD20 provides enhanced features for a more comprehensive understanding of your vehicle.
- Advanced Battery Test: Monitor your car battery's health by checking voltage, generator output, and starting voltage. This function provides real-time data before, during, and after starting the vehicle.
- Driving Records & Analysis: Track your driving habits and vehicle performance. The app records trip routes, analyzes driving distance, speed, RPM, temperature, and fuel consumption. It also identifies events like rapid acceleration, sharp turns, and emergency braking.
- Colorful HUD Function: Utilize the Head-Up Display feature to project essential vehicle information (speed, instrument data, navigation, ADAS) onto your windshield, minimizing the need to look down at the dashboard.
- Performance Testing: Conduct tests such as 0-100 km/h acceleration time, and monitor speed, engine load, and coolant temperature to assess your car's overall performance and detect potential issues in the drivetrain or braking system.
- Auto VIN + Auto Scan: Automatically identify your vehicle's VIN for accurate diagnostics and initiate a full system scan.
5. Maintenance
To ensure the longevity and optimal performance of your XTOOL Advancer AD20, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the device. Avoid using abrasive cleaners or solvents that could damage the casing or internal components.
- Storage: Store the device in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. When not in use, disconnect it from the vehicle's OBDII port.
- Software Updates: Regularly check for and install software updates through the Advancer AD20 app. These updates provide new features, improved compatibility, and bug fixes.
- Handle with Care: Avoid dropping the device or subjecting it to strong impacts, as this can cause internal damage.
6. Troubleshooting
This section addresses common issues you might encounter with your XTOOL Advancer AD20.
6.1. Connection Issues
- Device Not Powering On: Ensure the AD20 is securely plugged into the vehicle's OBDII port and the vehicle's ignition is turned on (or engine running). Check the vehicle's fuse for the OBDII port if the issue persists.
- Bluetooth Pairing Failure: Make sure Bluetooth is enabled on your smartphone/tablet. Restart the app and try pairing again. Ensure no other devices are actively connected to the AD20.
- App Not Recognizing Device: Verify that the AD20 is powered on and successfully paired via Bluetooth. Close and reopen the Advancer AD20 app. Ensure the app is updated to the latest version.
6.2. Diagnostic Issues
- No Fault Codes Found: If the Check Engine Light is off, there might be no active fault codes. If the light is on but no codes are found, ensure your vehicle is OBD2 compliant and the connection is stable.
- Inaccurate Readings: Ensure the vehicle's ignition is on and the engine is running for accurate live data readings. If readings seem incorrect, try restarting the diagnostic session.
- Error Code Interpretation: The AD20 app provides detailed explanations for error codes. XTOOL engineers categorize error codes into three levels:
- Level 1: Can drive normally without affecting driving.
- Level 2: Please find a repair shop as soon as possible to repair the vehicle.
- Level 3: Please stop as soon as possible to avoid accidents.
6.3. App Performance
- App Crashing/Freezing: Ensure your smartphone/tablet meets the minimum system requirements for the app. Clear the app's cache or reinstall the app if necessary.
- Slow Performance: Close other background applications on your device to free up resources. Ensure a stable internet connection for cloud services and updates.
7. Specifications
| Feature | Specification |
|---|---|
| Brand Name | XTOOL |
| Model | Advancer AD20 |
| Item Type | Code Readers & Scan Tools |
| Special Features | Bluetooth 5.0 |
| Software Update | Yes (Lifetime Free Updates) |
| Hardware Version | 2025 |
| Software Version | 2025 |
| Operating System | Android and iOS |
| Supported Languages | Arabic, English, French, German, Japanese, Korean, Polish, Portuguese, Russian, Spanish |
| Supported Car Types | 12V gasoline/petrol cars (Post 1996 OBD2 compliant) |
| Supported OBD2 Protocols | SAEJ1850 PWM, SAE J1850 VPW, ISO9141-2, ISO14230-4 KWP (5 baud init), ISO14230-4 KWP (fast init), ISO15765-4 CAN (11bit ID, 500 Kbaud), ISO15765-4 CAN (29bit ID, 500 Kbaud), ISO15765-4 CAN (11bit ID, 250 Kbaud), ISO15765-4 CAN (29bit ID, 250 Kbaud) |
| Certification | CE |
| Origin | Mainland China |
| Package Dimensions (L x W x H) | 15 cm x 10 cm x 8 cm |
| Package Weight | 0.56 kg |
8. Warranty and Support
XTOOL is committed to providing high-quality products and excellent customer service.
- Technical Support: XTOOL provides 24-hour online service and professional technical support. For assistance, please contact the seller or visit the official XTOOL website.
- Software Updates: The Advancer AD20 comes with lifetime free software updates, ensuring your device remains compatible with new vehicle models and features.
9. User Tips
- Vehicle Compatibility: Before purchasing or if you encounter issues, it is recommended to send your specific vehicle model and desired functions to the seller to confirm compatibility. While the AD20 supports a wide range of OBD2 compliant vehicles, some advanced functions may not be available for all models.
- Device Compatibility: The AD20 is designed for use with mobile phones and tablets (Android and iOS). It is not supported for use with computers.
- Advanced Functions: Be aware that some advanced special functions, such as gas adjustment or adaptation, are not explicitly listed or guaranteed to be available on the AD20. More specialized tools like the XTOOL A30M may offer a broader range of such functions.
10. Frequently Asked Questions (FAQ)
- Q: What is the difference between AD20 and older models like ELM327 or AD10?
- A: The AD20 is an upgraded version of the AD10 and offers significant improvements over generic ELM327 devices. It features better hardware (Bluetooth 5.0), XTOOL's independently developed and continuously updated software, and more advanced functions such as driving record, driving analysis, and HUD features. Unlike ELM327, AD20 provides more premium and smoother diagnostic procedures and is designed to avoid common Bluetooth connectivity issues.
- Q: Does the AD20 work on all car models?
- A: The AD20 supports over 120 brands and 10,000+ car models, specifically 12V gasoline/petrol cars manufactured after 1996 that are compliant with standard OBD2 protocols (SAEJ1850 PWM, SAE J1850 VPW, ISO9141-2, ISO14230-4 KWP, ISO15765-4 CAN). For specific compatibility, especially for older or less common models, it's always best to confirm with the seller.
- Q: Does it read all car computer characteristics, clear errors, and provide reports?
- A: Yes, the AD20 performs full OBD2 diagnostics, which includes reading and clearing fault codes, viewing live data streams, and retrieving vehicle information. It provides detailed explanations for error codes and offers maintenance help, effectively acting as a comprehensive diagnostic tool.
- Q: Do I need to pay for annual updates or extensions?
- A: No, the XTOOL Advancer AD20 comes with lifetime free updates for all its functions. There are no annual fees required to access the latest software and vehicle coverage.
