Understanding dynamic calibration and its importance in modern vehicle diagnostics is crucial for any automotive technician. This article delves into the definition of dynamic calibration, specifically focusing on its application with the Autel MS908 diagnostic scanner. We will explore common questions and troubleshooting tips related to Autel devices and software.
Understanding Dynamic Calibration
Dynamic calibration, also known as rolling calibration or on-the-go calibration, is a procedure used to calibrate Advanced Driver-Assistance Systems (ADAS) sensors while the vehicle is in motion. These sensors, including cameras, radar, and lidar, rely on precise measurements to function correctly. Dynamic calibration ensures these systems provide accurate data to the vehicle’s control modules, enabling features like lane keeping assist, adaptive cruise control, and automatic emergency braking to operate safely and effectively.
Autel MS908 and Dynamic Calibration
The Autel MS908 is a powerful diagnostic scanner capable of performing various functions, including dynamic calibration for certain vehicle makes and models. It utilizes specific procedures and targets to calibrate ADAS sensors according to the manufacturer’s specifications. This process typically involves driving the vehicle at a predetermined speed and following specific instructions displayed on the MS908 screen. Successful dynamic calibration ensures the sensors are correctly aligned and providing accurate data to the vehicle’s systems.
Common Autel Device and Software Troubleshooting
While the Autel MS908 is a sophisticated tool, users may occasionally encounter issues. Here are some frequently asked questions and troubleshooting steps:
Software Issues
- “Install Failed” Error:
- Android: Clear the app cache (App Info > Storage > Clear Cache).
- iOS: Clear the cache in the MaxiAP app (Me > Settings > Clear Cache).
- “Acquire Failed” Error during Login: Ensure MaxiAP200 is downloaded on your AP200 device.
- “The vehicle does not support current language” Error: Contact Autel support to change the sales contract language.
- Update List Not Loading: Check network connectivity, ensure Autel server IPs are not blocked, and try a different Wi-Fi connection.
- Authorization Errors: Various authorization errors can occur. Check for the “authorization.txt” file in the relevant folders using ES File Explorer. If missing, try connecting the tablet to a computer via USB, enabling USB storage, disconnecting, and then retrying diagnostics. If problems persist, subscription renewal and software re-download might be necessary. Contact Autel support for specific error codes (Error Code 1, 2, 3, etc.).
- Subscription Expired: Contact Autel support with a screenshot of the error message and details of your activity before the error. Upload data logs via MaxiTools.
Device Issues
- Device Stuck on Startup Screen: If the device has a valid subscription, flash the device with the program (contact support for the program). If out of subscription, attempt flashing without deleting data first.
- MaxiSYS Program Stopped: Check if your device is blacklisted. Upload logs via MaxiTools for further analysis.
- Factory Reset Error: This often occurs on devices with expired subscriptions. Try reinstalling MaxiDas.apk from the apk_back folder (ES File Explorer > SD Card > Scan > apk_back). If not found, upload data logs and MaxiUI version to Autel support.
Data Logging and Communication Errors
- Data Log Upload Issues (“Network Busy”): Manually locate log files (zip files named by date) in the Data logging folder (ES File Explorer > Scan > Data logging) and email them to Autel support.
- “Linking Error” with OBDII Software: Confirm vehicle OBDII compliance (Europe: since 2006, USA: since 1996, Asia: since 2009). Test with other OBDII compliant vehicles. If the issue persists, provide region, device information screenshot, and vehicle VIN to Autel support.
- Communication Failure with All Modules: Check OBDII cable functionality and vehicle issues. Test with another cable and vehicle.
- Communication Error on Specific Module: Inspect the module for connection problems and related error codes in other modules. Record a video of the diagnostic process and provide details to Autel support.
Conclusion
Dynamic calibration is a vital process for ensuring the proper functioning of ADAS features in modern vehicles. The Autel MS908 provides the capability to perform this calibration, but understanding potential issues and troubleshooting steps is essential. By following the guidelines and tips outlined in this article, technicians can effectively utilize the MS908 to diagnose and resolve vehicle problems related to ADAS and other systems. For complex issues or persistent errors, contacting Autel support is always recommended.
