Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The PCM illuminates the malfunction indicator lamp (MIL).
The PCM commands third gear only.
The PCM commands maximum line pressure.
The PCM inhibits TCC engagement.
The PCM freezes shift adapts from being updated.
The PCM records the operating conditions when the Conditions for Setting the DTC are met. The PCM stores this information as Freeze Frame and Failure Records.
The PCM stores DTC P0756 in PCM history.