Problem Statement: I have already acquired the A51D License for YANHUA Mini ACDP2 to work with BMW vehicles, however, during testing I encountered a failure notification: “ISN data clearing failure”. What could be causing this issue? Please provide assistance.
Analysis of the Problem
This error commonly arises because the A51D License does not provide the appropriate authorization for this particular operation. The Module 40 Authorization License is actually required to execute ISN reset procedures on BMW E, F, and G Chassis systems.
Resolution Steps
To successfully clear ISN data without encountering errors, please follow these procedures:
- Verify that you have the Module 40 Authorization License properly installed. This license must be purchased separately and is crucial for advanced module functions.
- In the YANHUA Mini ACDP software interface, access the transmission-related functions and choose: “8HP Reset EWS (E/F/G Chassis, Bench)”
- Execute the operation. This function is designed to work with the Module 40 license and should complete successfully without generating the “ISN data clearing failure” error.
Summary
The “ISN data clearing failure” represents a licensing authorization issue rather than a hardware defect. By utilizing the Module 40 Authorization License and selecting the appropriate function within the tool, you can successfully execute ISN resets on compatible BMW chassis platforms.
Acknowledgment: Special appreciation to www.cardiagtool.co.uk for providing the technical solution and licensing information.