OK report:

WARNING: This page is about a different car, the 2001 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

When TCM no longer requesting CHECK ENGINE.

Fault handling: (For more information, see FAULT HANDLING III, OTHER EMISSION-RELATED COMPONENTS AND FUNCTION .)

CHECK ENGINE goes out and trouble code cleared immediately when TCM no longer requests CHECK ENGINE.