Conditions for Setting the DTC: P0723

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The TCM detects an unrealistic signal drop from the OSS.
OSS DTC P0723 has not failed this ignition.
The transmission output speed drops 1,000 RPM for greater than 4 seconds and does not recover.