Oracle Diagnostics Support Pack is available as a patch and can be applied using adpatch. Installation is easy. Just follow the steps in Doc ID 167000.1, eBusiness Suite Support - Oracle Diagnostics Support Pack Installation Guide
For information on how to run the Diagnostics from a menu within the Oracle Applications, please refer to Doc ID 358831.1, Diagnostics Responsibility Configuration.
Please review the following Diagnostic catalogs for your release level and take advantage of using the Diagnostic scripts available. By using these diagnostics, you can avoid problems, troubleshoot issues and reduce time to resolution when logging a Service Request.
E-Business Suite Diagnostics for:
Release 12.1.3, Doc ID 1083807.1
Release 12.1.2, Doc ID 942527.1
Release 12.1.1, Doc ID 783319.1
Release 12.0.6 (Diagnostics RUP6), Doc ID 741601.1
Release 12.0.4 (Diagnostics RUP4), Doc ID 469721.1
Release 12.0.3 (Diagnostics RUP3), Doc ID 464866.1
Release 11i, Doc ID 179661.1