My Oracle Support Community is located at:

https://communities.oracle.com/portal/server.pt/community/support/219

My Oracle Support Community – Diagnostic Tools is located at:

https://communities.oracle.com/portal/server.pt/community/Diagnosibility/242

Overview of EBS Diagnostics Video:

https://support.oracle.com/CSP/main/article?cmd=show&type=ATT&id=232116.1:OVERVIEW&inline=1

How to run Oracle DBS Diagnostics:

Log on as a user with access to the Application Diagnostics responsibility. Then click:

Application Diagnostics > Diagnose > Select Application

Check checkbox to left of the test you wish to run.

Scroll to bottom of page and click Execute button.

Enter parameters, then click Submit.

Diagnostic Tests Catalog:

Release 12: MOS Doc ID: 421245.1

Other Diagnostics documents:
* Overview
* Installation Guide
* Frequently Asked Questions (FAQ)
* Training

Also My Oracle Support (MOS) Community